| File: | out/../deps/v8/src/codegen/x64/assembler-x64.cc |
| Warning: | line 2367, column 5 Value stored to 'size' is never read |
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| 1 | // Copyright 2012 the V8 project authors. All rights reserved. |
| 2 | // Use of this source code is governed by a BSD-style license that can be |
| 3 | // found in the LICENSE file. |
| 4 | |
| 5 | #include "src/codegen/x64/assembler-x64.h" |
| 6 | |
| 7 | #include <cstring> |
| 8 | |
| 9 | #if V8_TARGET_ARCH_X641 |
| 10 | |
| 11 | #if V8_LIBC_MSVCRT |
| 12 | #include <intrin.h> // _xgetbv() |
| 13 | #endif |
| 14 | #if V8_OS_DARWIN |
| 15 | #include <sys/sysctl.h> |
| 16 | #endif |
| 17 | |
| 18 | #include "src/base/bits.h" |
| 19 | #include "src/base/cpu.h" |
| 20 | #include "src/base/platform/wrappers.h" |
| 21 | #include "src/codegen/assembler-inl.h" |
| 22 | #include "src/codegen/macro-assembler.h" |
| 23 | #include "src/codegen/string-constants.h" |
| 24 | #include "src/deoptimizer/deoptimizer.h" |
| 25 | #include "src/init/v8.h" |
| 26 | |
| 27 | namespace v8 { |
| 28 | namespace internal { |
| 29 | |
| 30 | // ----------------------------------------------------------------------------- |
| 31 | // Implementation of CpuFeatures |
| 32 | |
| 33 | namespace { |
| 34 | |
| 35 | #if V8_HOST_ARCH_IA32 || V8_HOST_ARCH_X641 |
| 36 | |
| 37 | V8_INLINEinline __attribute__((always_inline)) uint64_t xgetbv(unsigned int xcr) { |
| 38 | #if V8_LIBC_MSVCRT |
| 39 | return _xgetbv(xcr); |
| 40 | #else |
| 41 | unsigned eax, edx; |
| 42 | // Check xgetbv; this uses a .byte sequence instead of the instruction |
| 43 | // directly because older assemblers do not include support for xgetbv and |
| 44 | // there is no easy way to conditionally compile based on the assembler |
| 45 | // used. |
| 46 | __asm__ volatile(".byte 0x0F, 0x01, 0xD0" : "=a"(eax), "=d"(edx) : "c"(xcr)); |
| 47 | return static_cast<uint64_t>(eax) | (static_cast<uint64_t>(edx) << 32); |
| 48 | #endif |
| 49 | } |
| 50 | |
| 51 | bool OSHasAVXSupport() { |
| 52 | #if V8_OS_DARWIN |
| 53 | // Mac OS X up to 10.9 has a bug where AVX transitions were indeed being |
| 54 | // caused by ISRs, so we detect that here and disable AVX in that case. |
| 55 | char buffer[128]; |
| 56 | size_t buffer_size = arraysize(buffer)(sizeof(ArraySizeHelper(buffer))); |
| 57 | int ctl_name[] = {CTL_KERN, KERN_OSRELEASE}; |
| 58 | if (sysctl(ctl_name, 2, buffer, &buffer_size, nullptr, 0) != 0) { |
| 59 | FATAL("V8 failed to get kernel version")V8_Fatal("V8 failed to get kernel version"); |
| 60 | } |
| 61 | // The buffer now contains a string of the form XX.YY.ZZ, where |
| 62 | // XX is the major kernel version component. |
| 63 | char* period_pos = strchr(buffer, '.'); |
| 64 | DCHECK_NOT_NULL(period_pos)((void) 0); |
| 65 | *period_pos = '\0'; |
| 66 | long kernel_version_major = strtol(buffer, nullptr, 10); // NOLINT |
| 67 | if (kernel_version_major <= 13) return false; |
| 68 | #endif // V8_OS_DARWIN |
| 69 | // Check whether OS claims to support AVX. |
| 70 | uint64_t feature_mask = xgetbv(0); // XCR_XFEATURE_ENABLED_MASK |
| 71 | return (feature_mask & 0x6) == 0x6; |
| 72 | } |
| 73 | |
| 74 | #endif // V8_HOST_ARCH_IA32 || V8_HOST_ARCH_X64 |
| 75 | |
| 76 | } // namespace |
| 77 | |
| 78 | bool CpuFeatures::SupportsWasmSimd128() { |
| 79 | #if V8_ENABLE_WEBASSEMBLY1 |
| 80 | if (IsSupported(SSE4_1)) return true; |
| 81 | if (FLAG_wasm_simd_ssse3_codegen && IsSupported(SSSE3)) return true; |
| 82 | #endif // V8_ENABLE_WEBASSEMBLY |
| 83 | return false; |
| 84 | } |
| 85 | |
| 86 | void CpuFeatures::ProbeImpl(bool cross_compile) { |
| 87 | // Only use statically determined features for cross compile (snapshot). |
| 88 | if (cross_compile) return; |
| 89 | |
| 90 | #if V8_HOST_ARCH_IA32 || V8_HOST_ARCH_X641 |
| 91 | base::CPU cpu; |
| 92 | CHECK(cpu.has_sse2())do { if ((__builtin_expect(!!(!(cpu.has_sse2())), 0))) { V8_Fatal ("Check failed: %s.", "cpu.has_sse2()"); } } while (false); // SSE2 support is mandatory. |
| 93 | CHECK(cpu.has_cmov())do { if ((__builtin_expect(!!(!(cpu.has_cmov())), 0))) { V8_Fatal ("Check failed: %s.", "cpu.has_cmov()"); } } while (false); // CMOV support is mandatory. |
| 94 | |
| 95 | if (cpu.has_sse42()) SetSupported(SSE4_2); |
| 96 | if (cpu.has_sse41()) SetSupported(SSE4_1); |
| 97 | if (cpu.has_ssse3()) SetSupported(SSSE3); |
| 98 | if (cpu.has_sse3()) SetSupported(SSE3); |
| 99 | if (cpu.has_avx() && cpu.has_osxsave() && OSHasAVXSupport()) { |
| 100 | SetSupported(AVX); |
| 101 | if (cpu.has_avx2()) SetSupported(AVX2); |
| 102 | if (cpu.has_fma3()) SetSupported(FMA3); |
| 103 | } |
| 104 | |
| 105 | // SAHF is not generally available in long mode. |
| 106 | if (cpu.has_sahf() && FLAG_enable_sahf) SetSupported(SAHF); |
| 107 | if (cpu.has_bmi1() && FLAG_enable_bmi1) SetSupported(BMI1); |
| 108 | if (cpu.has_bmi2() && FLAG_enable_bmi2) SetSupported(BMI2); |
| 109 | if (cpu.has_lzcnt() && FLAG_enable_lzcnt) SetSupported(LZCNT); |
| 110 | if (cpu.has_popcnt() && FLAG_enable_popcnt) SetSupported(POPCNT); |
| 111 | if (strcmp(FLAG_mcpu, "auto") == 0) { |
| 112 | if (cpu.is_atom()) SetSupported(INTEL_ATOM); |
| 113 | } else if (strcmp(FLAG_mcpu, "atom") == 0) { |
| 114 | SetSupported(INTEL_ATOM); |
| 115 | } |
| 116 | |
| 117 | // Ensure that supported cpu features make sense. E.g. it is wrong to support |
| 118 | // AVX but not SSE4_2, if we have --enable-avx and --no-enable-sse4-2, the |
| 119 | // code above would set AVX to supported, and SSE4_2 to unsupported, then the |
| 120 | // checks below will set AVX to unsupported. |
| 121 | if (!FLAG_enable_sse3) SetUnsupported(SSE3); |
| 122 | if (!FLAG_enable_ssse3 || !IsSupported(SSE3)) SetUnsupported(SSSE3); |
| 123 | if (!FLAG_enable_sse4_1 || !IsSupported(SSSE3)) SetUnsupported(SSE4_1); |
| 124 | if (!FLAG_enable_sse4_2 || !IsSupported(SSE4_1)) SetUnsupported(SSE4_2); |
| 125 | if (!FLAG_enable_avx || !IsSupported(SSE4_2)) SetUnsupported(AVX); |
| 126 | if (!FLAG_enable_avx2 || !IsSupported(AVX)) SetUnsupported(AVX2); |
| 127 | if (!FLAG_enable_fma3 || !IsSupported(AVX)) SetUnsupported(FMA3); |
| 128 | |
| 129 | // Set a static value on whether Simd is supported. |
| 130 | // This variable is only used for certain archs to query SupportWasmSimd128() |
| 131 | // at runtime in builtins using an extern ref. Other callers should use |
| 132 | // CpuFeatures::SupportWasmSimd128(). |
| 133 | CpuFeatures::supports_wasm_simd_128_ = CpuFeatures::SupportsWasmSimd128(); |
| 134 | |
| 135 | if (cpu.has_cetss()) SetSupported(CETSS); |
| 136 | // The static variable is used for codegen of certain CETSS instructions. |
| 137 | CpuFeatures::supports_cetss_ = IsSupported(CETSS); |
| 138 | #endif // V8_HOST_ARCH_IA32 || V8_HOST_ARCH_X64 |
| 139 | } |
| 140 | |
| 141 | void CpuFeatures::PrintTarget() {} |
| 142 | void CpuFeatures::PrintFeatures() { |
| 143 | printf( |
| 144 | "SSE3=%d SSSE3=%d SSE4_1=%d SSE4_2=%d SAHF=%d AVX=%d AVX2=%d FMA3=%d " |
| 145 | "BMI1=%d " |
| 146 | "BMI2=%d " |
| 147 | "LZCNT=%d " |
| 148 | "POPCNT=%d ATOM=%d\n", |
| 149 | CpuFeatures::IsSupported(SSE3), CpuFeatures::IsSupported(SSSE3), |
| 150 | CpuFeatures::IsSupported(SSE4_1), CpuFeatures::IsSupported(SSE4_2), |
| 151 | CpuFeatures::IsSupported(SAHF), CpuFeatures::IsSupported(AVX), |
| 152 | CpuFeatures::IsSupported(AVX2), CpuFeatures::IsSupported(FMA3), |
| 153 | CpuFeatures::IsSupported(BMI1), CpuFeatures::IsSupported(BMI2), |
| 154 | CpuFeatures::IsSupported(LZCNT), CpuFeatures::IsSupported(POPCNT), |
| 155 | CpuFeatures::IsSupported(INTEL_ATOM)); |
| 156 | } |
| 157 | |
| 158 | // ----------------------------------------------------------------------------- |
| 159 | // Implementation of RelocInfo |
| 160 | |
| 161 | uint32_t RelocInfo::wasm_call_tag() const { |
| 162 | DCHECK(rmode_ == WASM_CALL || rmode_ == WASM_STUB_CALL)((void) 0); |
| 163 | return ReadUnalignedValue<uint32_t>(pc_); |
| 164 | } |
| 165 | |
| 166 | // ----------------------------------------------------------------------------- |
| 167 | // Implementation of Operand |
| 168 | |
| 169 | Operand::Operand(Operand operand, int32_t offset) { |
| 170 | DCHECK_GE(operand.data().len, 1)((void) 0); |
| 171 | // Operand encodes REX ModR/M [SIB] [Disp]. |
| 172 | byte modrm = operand.data().buf[0]; |
| 173 | DCHECK_LT(modrm, 0xC0)((void) 0); // Disallow mode 3 (register target). |
| 174 | bool has_sib = ((modrm & 0x07) == 0x04); |
| 175 | byte mode = modrm & 0xC0; |
| 176 | int disp_offset = has_sib ? 2 : 1; |
| 177 | int base_reg = (has_sib ? operand.data().buf[1] : modrm) & 0x07; |
| 178 | // Mode 0 with rbp/r13 as ModR/M or SIB base register always has a 32-bit |
| 179 | // displacement. |
| 180 | bool is_baseless = (mode == 0) && (base_reg == 0x05); // No base or RIP base. |
| 181 | int32_t disp_value = 0; |
| 182 | if (mode == 0x80 || is_baseless) { |
| 183 | // Mode 2 or mode 0 with rbp/r13 as base: Word displacement. |
| 184 | disp_value = ReadUnalignedValue<int32_t>( |
| 185 | reinterpret_cast<Address>(&operand.data().buf[disp_offset])); |
| 186 | } else if (mode == 0x40) { |
| 187 | // Mode 1: Byte displacement. |
| 188 | disp_value = static_cast<signed char>(operand.data().buf[disp_offset]); |
| 189 | } |
| 190 | |
| 191 | // Write new operand with same registers, but with modified displacement. |
| 192 | DCHECK(offset >= 0 ? disp_value + offset > disp_value((void) 0) |
| 193 | : disp_value + offset < disp_value)((void) 0); // No overflow. |
| 194 | disp_value += offset; |
| 195 | data_.rex = operand.data().rex; |
| 196 | if (!is_int8(disp_value) || is_baseless) { |
| 197 | // Need 32 bits of displacement, mode 2 or mode 1 with register rbp/r13. |
| 198 | data_.buf[0] = (modrm & 0x3F) | (is_baseless ? 0x00 : 0x80); |
| 199 | data_.len = disp_offset + 4; |
| 200 | WriteUnalignedValue(reinterpret_cast<Address>(&data_.buf[disp_offset]), |
| 201 | disp_value); |
| 202 | } else if (disp_value != 0 || (base_reg == 0x05)) { |
| 203 | // Need 8 bits of displacement. |
| 204 | data_.buf[0] = (modrm & 0x3F) | 0x40; // Mode 1. |
| 205 | data_.len = disp_offset + 1; |
| 206 | data_.buf[disp_offset] = static_cast<byte>(disp_value); |
| 207 | } else { |
| 208 | // Need no displacement. |
| 209 | data_.buf[0] = (modrm & 0x3F); // Mode 0. |
| 210 | data_.len = disp_offset; |
| 211 | } |
| 212 | if (has_sib) { |
| 213 | data_.buf[1] = operand.data().buf[1]; |
| 214 | } |
| 215 | } |
| 216 | |
| 217 | bool Operand::AddressUsesRegister(Register reg) const { |
| 218 | int code = reg.code(); |
| 219 | DCHECK_NE(data_.buf[0] & 0xC0, 0xC0)((void) 0); // Always a memory operand. |
| 220 | // Start with only low three bits of base register. Initial decoding |
| 221 | // doesn't distinguish on the REX.B bit. |
| 222 | int base_code = data_.buf[0] & 0x07; |
| 223 | if (base_code == rsp.code()) { |
| 224 | // SIB byte present in buf_[1]. |
| 225 | // Check the index register from the SIB byte + REX.X prefix. |
| 226 | int index_code = ((data_.buf[1] >> 3) & 0x07) | ((data_.rex & 0x02) << 2); |
| 227 | // Index code (including REX.X) of 0x04 (rsp) means no index register. |
| 228 | if (index_code != rsp.code() && index_code == code) return true; |
| 229 | // Add REX.B to get the full base register code. |
| 230 | base_code = (data_.buf[1] & 0x07) | ((data_.rex & 0x01) << 3); |
| 231 | // A base register of 0x05 (rbp) with mod = 0 means no base register. |
| 232 | if (base_code == rbp.code() && ((data_.buf[0] & 0xC0) == 0)) return false; |
| 233 | return code == base_code; |
| 234 | } else { |
| 235 | // A base register with low bits of 0x05 (rbp or r13) and mod = 0 means |
| 236 | // no base register. |
| 237 | if (base_code == rbp.code() && ((data_.buf[0] & 0xC0) == 0)) return false; |
| 238 | base_code |= ((data_.rex & 0x01) << 3); |
| 239 | return code == base_code; |
| 240 | } |
| 241 | } |
| 242 | |
| 243 | void Assembler::AllocateAndInstallRequestedHeapObjects(Isolate* isolate) { |
| 244 | DCHECK_IMPLIES(isolate == nullptr, heap_object_requests_.empty())((void) 0); |
| 245 | for (auto& request : heap_object_requests_) { |
| 246 | Address pc = reinterpret_cast<Address>(buffer_start_) + request.offset(); |
| 247 | switch (request.kind()) { |
| 248 | case HeapObjectRequest::kHeapNumber: { |
| 249 | Handle<HeapNumber> object = |
| 250 | isolate->factory()->NewHeapNumber<AllocationType::kOld>( |
| 251 | request.heap_number()); |
| 252 | WriteUnalignedValue(pc, object); |
| 253 | break; |
| 254 | } |
| 255 | case HeapObjectRequest::kStringConstant: { |
| 256 | const StringConstantBase* str = request.string(); |
| 257 | CHECK_NOT_NULL(str)do { if ((__builtin_expect(!!(!((str) != nullptr)), 0))) { V8_Fatal ("Check failed: %s.", "(str) != nullptr"); } } while (false); |
| 258 | Handle<String> allocated = str->AllocateStringConstant(isolate); |
| 259 | WriteUnalignedValue(pc, allocated); |
| 260 | break; |
| 261 | } |
| 262 | } |
| 263 | } |
| 264 | } |
| 265 | |
| 266 | // Partial Constant Pool. |
| 267 | bool ConstPool::AddSharedEntry(uint64_t data, int offset) { |
| 268 | auto existing = entries_.find(data); |
| 269 | if (existing == entries_.end()) { |
| 270 | entries_.insert(std::make_pair(data, offset + kMoveImm64Offset)); |
| 271 | return false; |
| 272 | } |
| 273 | |
| 274 | // Make sure this is called with strictly ascending offsets. |
| 275 | DCHECK_GT(offset + kMoveImm64Offset, existing->second)((void) 0); |
| 276 | |
| 277 | entries_.insert(std::make_pair(data, offset + kMoveRipRelativeDispOffset)); |
| 278 | return true; |
| 279 | } |
| 280 | |
| 281 | bool ConstPool::TryRecordEntry(intptr_t data, RelocInfo::Mode mode) { |
| 282 | if (!FLAG_partial_constant_pool) return false; |
| 283 | DCHECK_WITH_MSG(void(0); |
| 284 | FLAG_text_is_readable,void(0); |
| 285 | "The partial constant pool requires a readable .text section")void(0);; |
| 286 | if (!RelocInfo::IsShareableRelocMode(mode)) return false; |
| 287 | |
| 288 | // Currently, partial constant pool only handles the following kinds of |
| 289 | // RelocInfo. |
| 290 | if (mode != RelocInfo::NO_INFO && mode != RelocInfo::EXTERNAL_REFERENCE && |
| 291 | mode != RelocInfo::OFF_HEAP_TARGET) |
| 292 | return false; |
| 293 | |
| 294 | uint64_t raw_data = static_cast<uint64_t>(data); |
| 295 | int offset = assm_->pc_offset(); |
| 296 | return AddSharedEntry(raw_data, offset); |
| 297 | } |
| 298 | |
| 299 | bool ConstPool::IsMoveRipRelative(Address instr) { |
| 300 | return (ReadUnalignedValue<uint32_t>(instr) & kMoveRipRelativeMask) == |
| 301 | kMoveRipRelativeInstr; |
| 302 | } |
| 303 | |
| 304 | void ConstPool::Clear() { entries_.clear(); } |
| 305 | |
| 306 | void ConstPool::PatchEntries() { |
| 307 | for (EntryMap::iterator iter = entries_.begin(); iter != entries_.end(); |
| 308 | iter = entries_.upper_bound(iter->first)) { |
| 309 | std::pair<EntryMap::iterator, EntryMap::iterator> range = |
| 310 | entries_.equal_range(iter->first); |
| 311 | int constant_entry_offset = 0; |
| 312 | for (EntryMap::iterator it = range.first; it != range.second; it++) { |
| 313 | if (it == range.first) { |
| 314 | constant_entry_offset = it->second; |
| 315 | continue; |
| 316 | } |
| 317 | |
| 318 | DCHECK_GT(constant_entry_offset, 0)((void) 0); |
| 319 | DCHECK_LT(constant_entry_offset, it->second)((void) 0); |
| 320 | int32_t disp32 = |
| 321 | constant_entry_offset - (it->second + kRipRelativeDispSize); |
| 322 | Address disp_addr = assm_->addr_at(it->second); |
| 323 | |
| 324 | // Check if the instruction is actually a rip-relative move. |
| 325 | DCHECK(IsMoveRipRelative(disp_addr - kMoveRipRelativeDispOffset))((void) 0); |
| 326 | // The displacement of the rip-relative move should be 0 before patching. |
| 327 | DCHECK(ReadUnalignedValue<uint32_t>(disp_addr) == 0)((void) 0); |
| 328 | WriteUnalignedValue(disp_addr, disp32); |
| 329 | } |
| 330 | } |
| 331 | Clear(); |
| 332 | } |
| 333 | |
| 334 | void Assembler::PatchConstPool() { |
| 335 | // There is nothing to do if there are no pending entries. |
| 336 | if (constpool_.IsEmpty()) { |
| 337 | return; |
| 338 | } |
| 339 | constpool_.PatchEntries(); |
| 340 | } |
| 341 | |
| 342 | bool Assembler::UseConstPoolFor(RelocInfo::Mode rmode) { |
| 343 | if (!FLAG_partial_constant_pool) return false; |
| 344 | return (rmode == RelocInfo::NO_INFO || |
| 345 | rmode == RelocInfo::EXTERNAL_REFERENCE || |
| 346 | rmode == RelocInfo::OFF_HEAP_TARGET); |
| 347 | } |
| 348 | |
| 349 | // ----------------------------------------------------------------------------- |
| 350 | // Implementation of Assembler. |
| 351 | |
| 352 | Assembler::Assembler(const AssemblerOptions& options, |
| 353 | std::unique_ptr<AssemblerBuffer> buffer) |
| 354 | : AssemblerBase(options, std::move(buffer)), constpool_(this) { |
| 355 | reloc_info_writer.Reposition(buffer_start_ + buffer_->size(), pc_); |
| 356 | if (CpuFeatures::IsSupported(SSE4_2)) { |
| 357 | EnableCpuFeature(SSE4_1); |
| 358 | } |
| 359 | if (CpuFeatures::IsSupported(SSE4_1)) { |
| 360 | EnableCpuFeature(SSSE3); |
| 361 | } |
| 362 | if (CpuFeatures::IsSupported(SSSE3)) { |
| 363 | EnableCpuFeature(SSE3); |
| 364 | } |
| 365 | |
| 366 | #if defined(V8_OS_WIN_X64) |
| 367 | if (options.collect_win64_unwind_info) { |
| 368 | xdata_encoder_ = std::make_unique<win64_unwindinfo::XdataEncoder>(*this); |
| 369 | } |
| 370 | #endif |
| 371 | } |
| 372 | |
| 373 | void Assembler::GetCode(Isolate* isolate, CodeDesc* desc, |
| 374 | SafepointTableBuilder* safepoint_table_builder, |
| 375 | int handler_table_offset) { |
| 376 | // As a crutch to avoid having to add manual Align calls wherever we use a |
| 377 | // raw workflow to create Code objects (mostly in tests), add another Align |
| 378 | // call here. It does no harm - the end of the Code object is aligned to the |
| 379 | // (larger) kCodeAlignment anyways. |
| 380 | // TODO(jgruber): Consider moving responsibility for proper alignment to |
| 381 | // metadata table builders (safepoint, handler, constant pool, code |
| 382 | // comments). |
| 383 | DataAlign(Code::kMetadataAlignment); |
| 384 | |
| 385 | PatchConstPool(); |
| 386 | DCHECK(constpool_.IsEmpty())((void) 0); |
| 387 | |
| 388 | const int code_comments_size = WriteCodeComments(); |
| 389 | |
| 390 | // At this point overflow() may be true, but the gap ensures |
| 391 | // that we are still not overlapping instructions and relocation info. |
| 392 | DCHECK(pc_ <= reloc_info_writer.pos())((void) 0); // No overlap. |
| 393 | |
| 394 | AllocateAndInstallRequestedHeapObjects(isolate); |
| 395 | |
| 396 | // Set up code descriptor. |
| 397 | // TODO(jgruber): Reconsider how these offsets and sizes are maintained up to |
| 398 | // this point to make CodeDesc initialization less fiddly. |
| 399 | |
| 400 | static constexpr int kConstantPoolSize = 0; |
| 401 | const int instruction_size = pc_offset(); |
| 402 | const int code_comments_offset = instruction_size - code_comments_size; |
| 403 | const int constant_pool_offset = code_comments_offset - kConstantPoolSize; |
| 404 | const int handler_table_offset2 = (handler_table_offset == kNoHandlerTable) |
| 405 | ? constant_pool_offset |
| 406 | : handler_table_offset; |
| 407 | const int safepoint_table_offset = |
| 408 | (safepoint_table_builder == kNoSafepointTable) |
| 409 | ? handler_table_offset2 |
| 410 | : safepoint_table_builder->safepoint_table_offset(); |
| 411 | const int reloc_info_offset = |
| 412 | static_cast<int>(reloc_info_writer.pos() - buffer_->start()); |
| 413 | CodeDesc::Initialize(desc, this, safepoint_table_offset, |
| 414 | handler_table_offset2, constant_pool_offset, |
| 415 | code_comments_offset, reloc_info_offset); |
| 416 | } |
| 417 | |
| 418 | void Assembler::FinalizeJumpOptimizationInfo() { |
| 419 | // Collection stage |
| 420 | auto jump_opt = jump_optimization_info(); |
| 421 | if (jump_opt && jump_opt->is_collecting()) { |
| 422 | auto& bitmap = jump_opt->farjmp_bitmap(); |
| 423 | int num = static_cast<int>(farjmp_positions_.size()); |
| 424 | if (num && bitmap.empty()) { |
| 425 | bool can_opt = false; |
| 426 | |
| 427 | bitmap.resize((num + 31) / 32, 0); |
| 428 | for (int i = 0; i < num; i++) { |
| 429 | int disp_pos = farjmp_positions_[i]; |
| 430 | int disp = long_at(disp_pos); |
| 431 | if (is_int8(disp)) { |
| 432 | bitmap[i / 32] |= 1 << (i & 31); |
| 433 | can_opt = true; |
| 434 | } |
| 435 | } |
| 436 | if (can_opt) { |
| 437 | jump_opt->set_optimizable(); |
| 438 | } |
| 439 | } |
| 440 | } |
| 441 | } |
| 442 | |
| 443 | #if defined(V8_OS_WIN_X64) |
| 444 | win64_unwindinfo::BuiltinUnwindInfo Assembler::GetUnwindInfo() const { |
| 445 | DCHECK(options().collect_win64_unwind_info)((void) 0); |
| 446 | DCHECK_NOT_NULL(xdata_encoder_)((void) 0); |
| 447 | return xdata_encoder_->unwinding_info(); |
| 448 | } |
| 449 | #endif |
| 450 | |
| 451 | void Assembler::Align(int m) { |
| 452 | DCHECK(base::bits::IsPowerOfTwo(m))((void) 0); |
| 453 | int delta = (m - (pc_offset() & (m - 1))) & (m - 1); |
| 454 | Nop(delta); |
| 455 | } |
| 456 | |
| 457 | void Assembler::CodeTargetAlign() { |
| 458 | Align(16); // Preferred alignment of jump targets on x64. |
| 459 | } |
| 460 | |
| 461 | void Assembler::LoopHeaderAlign() { |
| 462 | Align(64); // Preferred alignment of loop header on x64. |
| 463 | } |
| 464 | |
| 465 | bool Assembler::IsNop(Address addr) { |
| 466 | byte* a = reinterpret_cast<byte*>(addr); |
| 467 | while (*a == 0x66) a++; |
| 468 | if (*a == 0x90) return true; |
| 469 | if (a[0] == 0xF && a[1] == 0x1F) return true; |
| 470 | return false; |
| 471 | } |
| 472 | |
| 473 | void Assembler::bind_to(Label* L, int pos) { |
| 474 | DCHECK(!L->is_bound())((void) 0); // Label may only be bound once. |
| 475 | DCHECK(0 <= pos && pos <= pc_offset())((void) 0); // Position must be valid. |
| 476 | if (L->is_linked()) { |
| 477 | int current = L->pos(); |
| 478 | int next = long_at(current); |
| 479 | while (next != current) { |
| 480 | if (current >= 4 && long_at(current - 4) == 0) { |
| 481 | // Absolute address. |
| 482 | intptr_t imm64 = reinterpret_cast<intptr_t>(buffer_start_ + pos); |
| 483 | WriteUnalignedValue(addr_at(current - 4), imm64); |
| 484 | internal_reference_positions_.push_back(current - 4); |
| 485 | } else { |
| 486 | // Relative address, relative to point after address. |
| 487 | int imm32 = pos - (current + sizeof(int32_t)); |
| 488 | long_at_put(current, imm32); |
| 489 | } |
| 490 | current = next; |
| 491 | next = long_at(next); |
| 492 | } |
| 493 | // Fix up last fixup on linked list. |
| 494 | if (current >= 4 && long_at(current - 4) == 0) { |
| 495 | // Absolute address. |
| 496 | intptr_t imm64 = reinterpret_cast<intptr_t>(buffer_start_ + pos); |
| 497 | WriteUnalignedValue(addr_at(current - 4), imm64); |
| 498 | internal_reference_positions_.push_back(current - 4); |
| 499 | } else { |
| 500 | // Relative address, relative to point after address. |
| 501 | int imm32 = pos - (current + sizeof(int32_t)); |
| 502 | long_at_put(current, imm32); |
| 503 | } |
| 504 | } |
| 505 | while (L->is_near_linked()) { |
| 506 | int fixup_pos = L->near_link_pos(); |
| 507 | int offset_to_next = |
| 508 | static_cast<int>(*reinterpret_cast<int8_t*>(addr_at(fixup_pos))); |
| 509 | DCHECK_LE(offset_to_next, 0)((void) 0); |
| 510 | int disp = pos - (fixup_pos + sizeof(int8_t)); |
| 511 | CHECK(is_int8(disp))do { if ((__builtin_expect(!!(!(is_int8(disp))), 0))) { V8_Fatal ("Check failed: %s.", "is_int8(disp)"); } } while (false); |
| 512 | set_byte_at(fixup_pos, disp); |
| 513 | if (offset_to_next < 0) { |
| 514 | L->link_to(fixup_pos + offset_to_next, Label::kNear); |
| 515 | } else { |
| 516 | L->UnuseNear(); |
| 517 | } |
| 518 | } |
| 519 | |
| 520 | // Optimization stage |
| 521 | auto jump_opt = jump_optimization_info(); |
| 522 | if (jump_opt && jump_opt->is_optimizing()) { |
| 523 | auto it = label_farjmp_maps_.find(L); |
| 524 | if (it != label_farjmp_maps_.end()) { |
| 525 | auto& pos_vector = it->second; |
| 526 | for (auto fixup_pos : pos_vector) { |
| 527 | int disp = pos - (fixup_pos + sizeof(int8_t)); |
| 528 | CHECK(is_int8(disp))do { if ((__builtin_expect(!!(!(is_int8(disp))), 0))) { V8_Fatal ("Check failed: %s.", "is_int8(disp)"); } } while (false); |
| 529 | set_byte_at(fixup_pos, disp); |
| 530 | } |
| 531 | label_farjmp_maps_.erase(it); |
| 532 | } |
| 533 | } |
| 534 | L->bind_to(pos); |
| 535 | } |
| 536 | |
| 537 | void Assembler::bind(Label* L) { bind_to(L, pc_offset()); } |
| 538 | |
| 539 | void Assembler::record_farjmp_position(Label* L, int pos) { |
| 540 | auto& pos_vector = label_farjmp_maps_[L]; |
| 541 | pos_vector.push_back(pos); |
| 542 | } |
| 543 | |
| 544 | bool Assembler::is_optimizable_farjmp(int idx) { |
| 545 | if (predictable_code_size()) return false; |
| 546 | |
| 547 | auto jump_opt = jump_optimization_info(); |
| 548 | CHECK(jump_opt->is_optimizing())do { if ((__builtin_expect(!!(!(jump_opt->is_optimizing()) ), 0))) { V8_Fatal("Check failed: %s.", "jump_opt->is_optimizing()" ); } } while (false); |
| 549 | |
| 550 | auto& bitmap = jump_opt->farjmp_bitmap(); |
| 551 | CHECK(idx < static_cast<int>(bitmap.size() * 32))do { if ((__builtin_expect(!!(!(idx < static_cast<int> (bitmap.size() * 32))), 0))) { V8_Fatal("Check failed: %s.", "idx < static_cast<int>(bitmap.size() * 32)" ); } } while (false); |
| 552 | return !!(bitmap[idx / 32] & (1 << (idx & 31))); |
| 553 | } |
| 554 | |
| 555 | void Assembler::GrowBuffer() { |
| 556 | DCHECK(buffer_overflow())((void) 0); |
| 557 | |
| 558 | // Compute new buffer size. |
| 559 | DCHECK_EQ(buffer_start_, buffer_->start())((void) 0); |
| 560 | int old_size = buffer_->size(); |
| 561 | int new_size = 2 * old_size; |
| 562 | |
| 563 | // Some internal data structures overflow for very large buffers, |
| 564 | // they must ensure that kMaximalBufferSize is not too large. |
| 565 | if (new_size > kMaximalBufferSize) { |
| 566 | V8::FatalProcessOutOfMemory(nullptr, "Assembler::GrowBuffer"); |
| 567 | } |
| 568 | |
| 569 | // Set up new buffer. |
| 570 | std::unique_ptr<AssemblerBuffer> new_buffer = buffer_->Grow(new_size); |
| 571 | DCHECK_EQ(new_size, new_buffer->size())((void) 0); |
| 572 | byte* new_start = new_buffer->start(); |
| 573 | |
| 574 | // Copy the data. |
| 575 | intptr_t pc_delta = new_start - buffer_start_; |
| 576 | intptr_t rc_delta = (new_start + new_size) - (buffer_start_ + old_size); |
| 577 | size_t reloc_size = (buffer_start_ + old_size) - reloc_info_writer.pos(); |
| 578 | MemMove(new_start, buffer_start_, pc_offset()); |
| 579 | MemMove(rc_delta + reloc_info_writer.pos(), reloc_info_writer.pos(), |
| 580 | reloc_size); |
| 581 | |
| 582 | // Switch buffers. |
| 583 | buffer_ = std::move(new_buffer); |
| 584 | buffer_start_ = new_start; |
| 585 | pc_ += pc_delta; |
| 586 | reloc_info_writer.Reposition(reloc_info_writer.pos() + rc_delta, |
| 587 | reloc_info_writer.last_pc() + pc_delta); |
| 588 | |
| 589 | // Relocate internal references. |
| 590 | for (auto pos : internal_reference_positions_) { |
| 591 | Address p = reinterpret_cast<Address>(buffer_start_ + pos); |
| 592 | WriteUnalignedValue(p, ReadUnalignedValue<intptr_t>(p) + pc_delta); |
| 593 | } |
| 594 | |
| 595 | DCHECK(!buffer_overflow())((void) 0); |
| 596 | } |
| 597 | |
| 598 | void Assembler::emit_operand(int code, Operand adr) { |
| 599 | DCHECK(is_uint3(code))((void) 0); |
| 600 | const unsigned length = adr.data().len; |
| 601 | DCHECK_GT(length, 0)((void) 0); |
| 602 | |
| 603 | // Emit updated ModR/M byte containing the given register. |
| 604 | DCHECK_EQ(adr.data().buf[0] & 0x38, 0)((void) 0); |
| 605 | *pc_++ = adr.data().buf[0] | code << 3; |
| 606 | |
| 607 | // Recognize RIP relative addressing. |
| 608 | if (adr.data().buf[0] == 5) { |
| 609 | DCHECK_EQ(9u, length)((void) 0); |
| 610 | Label* label = ReadUnalignedValue<Label*>( |
| 611 | reinterpret_cast<Address>(&adr.data().buf[1])); |
| 612 | if (label->is_bound()) { |
| 613 | int offset = |
| 614 | label->pos() - pc_offset() - sizeof(int32_t) + adr.data().addend; |
| 615 | DCHECK_GE(0, offset)((void) 0); |
| 616 | emitl(offset); |
| 617 | } else if (label->is_linked()) { |
| 618 | emitl(label->pos()); |
| 619 | label->link_to(pc_offset() - sizeof(int32_t)); |
| 620 | } else { |
| 621 | DCHECK(label->is_unused())((void) 0); |
| 622 | int32_t current = pc_offset(); |
| 623 | emitl(current); |
| 624 | label->link_to(current); |
| 625 | } |
| 626 | } else { |
| 627 | // Emit the rest of the encoded operand. |
| 628 | for (unsigned i = 1; i < length; i++) *pc_++ = adr.data().buf[i]; |
| 629 | } |
| 630 | } |
| 631 | |
| 632 | // Assembler Instruction implementations. |
| 633 | |
| 634 | void Assembler::arithmetic_op(byte opcode, Register reg, Operand op, int size) { |
| 635 | EnsureSpace ensure_space(this); |
| 636 | emit_rex(reg, op, size); |
| 637 | emit(opcode); |
| 638 | emit_operand(reg, op); |
| 639 | } |
| 640 | |
| 641 | void Assembler::arithmetic_op(byte opcode, Register reg, Register rm_reg, |
| 642 | int size) { |
| 643 | EnsureSpace ensure_space(this); |
| 644 | DCHECK_EQ(opcode & 0xC6, 2)((void) 0); |
| 645 | if (rm_reg.low_bits() == 4) { // Forces SIB byte. |
| 646 | // Swap reg and rm_reg and change opcode operand order. |
| 647 | emit_rex(rm_reg, reg, size); |
| 648 | emit(opcode ^ 0x02); |
| 649 | emit_modrm(rm_reg, reg); |
| 650 | } else { |
| 651 | emit_rex(reg, rm_reg, size); |
| 652 | emit(opcode); |
| 653 | emit_modrm(reg, rm_reg); |
| 654 | } |
| 655 | } |
| 656 | |
| 657 | void Assembler::arithmetic_op_16(byte opcode, Register reg, Register rm_reg) { |
| 658 | EnsureSpace ensure_space(this); |
| 659 | DCHECK_EQ(opcode & 0xC6, 2)((void) 0); |
| 660 | if (rm_reg.low_bits() == 4) { // Forces SIB byte. |
| 661 | // Swap reg and rm_reg and change opcode operand order. |
| 662 | emit(0x66); |
| 663 | emit_optional_rex_32(rm_reg, reg); |
| 664 | emit(opcode ^ 0x02); |
| 665 | emit_modrm(rm_reg, reg); |
| 666 | } else { |
| 667 | emit(0x66); |
| 668 | emit_optional_rex_32(reg, rm_reg); |
| 669 | emit(opcode); |
| 670 | emit_modrm(reg, rm_reg); |
| 671 | } |
| 672 | } |
| 673 | |
| 674 | void Assembler::arithmetic_op_16(byte opcode, Register reg, Operand rm_reg) { |
| 675 | EnsureSpace ensure_space(this); |
| 676 | emit(0x66); |
| 677 | emit_optional_rex_32(reg, rm_reg); |
| 678 | emit(opcode); |
| 679 | emit_operand(reg, rm_reg); |
| 680 | } |
| 681 | |
| 682 | void Assembler::arithmetic_op_8(byte opcode, Register reg, Operand op) { |
| 683 | EnsureSpace ensure_space(this); |
| 684 | if (!reg.is_byte_register()) { |
| 685 | emit_rex_32(reg, op); |
| 686 | } else { |
| 687 | emit_optional_rex_32(reg, op); |
| 688 | } |
| 689 | emit(opcode); |
| 690 | emit_operand(reg, op); |
| 691 | } |
| 692 | |
| 693 | void Assembler::arithmetic_op_8(byte opcode, Register reg, Register rm_reg) { |
| 694 | EnsureSpace ensure_space(this); |
| 695 | DCHECK_EQ(opcode & 0xC6, 2)((void) 0); |
| 696 | if (rm_reg.low_bits() == 4) { // Forces SIB byte. |
| 697 | // Swap reg and rm_reg and change opcode operand order. |
| 698 | if (!rm_reg.is_byte_register() || !reg.is_byte_register()) { |
| 699 | // Register is not one of al, bl, cl, dl. Its encoding needs REX. |
| 700 | emit_rex_32(rm_reg, reg); |
| 701 | } |
| 702 | emit(opcode ^ 0x02); |
| 703 | emit_modrm(rm_reg, reg); |
| 704 | } else { |
| 705 | if (!reg.is_byte_register() || !rm_reg.is_byte_register()) { |
| 706 | // Register is not one of al, bl, cl, dl. Its encoding needs REX. |
| 707 | emit_rex_32(reg, rm_reg); |
| 708 | } |
| 709 | emit(opcode); |
| 710 | emit_modrm(reg, rm_reg); |
| 711 | } |
| 712 | } |
| 713 | |
| 714 | void Assembler::immediate_arithmetic_op(byte subcode, Register dst, |
| 715 | Immediate src, int size) { |
| 716 | EnsureSpace ensure_space(this); |
| 717 | emit_rex(dst, size); |
| 718 | if (is_int8(src.value_) && RelocInfo::IsNoInfo(src.rmode_)) { |
| 719 | emit(0x83); |
| 720 | emit_modrm(subcode, dst); |
| 721 | emit(src.value_); |
| 722 | } else if (dst == rax) { |
| 723 | emit(0x05 | (subcode << 3)); |
| 724 | emit(src); |
| 725 | } else { |
| 726 | emit(0x81); |
| 727 | emit_modrm(subcode, dst); |
| 728 | emit(src); |
| 729 | } |
| 730 | } |
| 731 | |
| 732 | void Assembler::immediate_arithmetic_op(byte subcode, Operand dst, |
| 733 | Immediate src, int size) { |
| 734 | EnsureSpace ensure_space(this); |
| 735 | emit_rex(dst, size); |
| 736 | if (is_int8(src.value_) && RelocInfo::IsNoInfo(src.rmode_)) { |
| 737 | emit(0x83); |
| 738 | emit_operand(subcode, dst); |
| 739 | emit(src.value_); |
| 740 | } else { |
| 741 | emit(0x81); |
| 742 | emit_operand(subcode, dst); |
| 743 | emit(src); |
| 744 | } |
| 745 | } |
| 746 | |
| 747 | void Assembler::immediate_arithmetic_op_16(byte subcode, Register dst, |
| 748 | Immediate src) { |
| 749 | EnsureSpace ensure_space(this); |
| 750 | emit(0x66); // Operand size override prefix. |
| 751 | emit_optional_rex_32(dst); |
| 752 | if (is_int8(src.value_)) { |
| 753 | emit(0x83); |
| 754 | emit_modrm(subcode, dst); |
| 755 | emit(src.value_); |
| 756 | } else if (dst == rax) { |
| 757 | emit(0x05 | (subcode << 3)); |
| 758 | emitw(src.value_); |
| 759 | } else { |
| 760 | emit(0x81); |
| 761 | emit_modrm(subcode, dst); |
| 762 | emitw(src.value_); |
| 763 | } |
| 764 | } |
| 765 | |
| 766 | void Assembler::immediate_arithmetic_op_16(byte subcode, Operand dst, |
| 767 | Immediate src) { |
| 768 | EnsureSpace ensure_space(this); |
| 769 | emit(0x66); // Operand size override prefix. |
| 770 | emit_optional_rex_32(dst); |
| 771 | if (is_int8(src.value_)) { |
| 772 | emit(0x83); |
| 773 | emit_operand(subcode, dst); |
| 774 | emit(src.value_); |
| 775 | } else { |
| 776 | emit(0x81); |
| 777 | emit_operand(subcode, dst); |
| 778 | emitw(src.value_); |
| 779 | } |
| 780 | } |
| 781 | |
| 782 | void Assembler::immediate_arithmetic_op_8(byte subcode, Operand dst, |
| 783 | Immediate src) { |
| 784 | EnsureSpace ensure_space(this); |
| 785 | emit_optional_rex_32(dst); |
| 786 | DCHECK(is_int8(src.value_) || is_uint8(src.value_))((void) 0); |
| 787 | emit(0x80); |
| 788 | emit_operand(subcode, dst); |
| 789 | emit(src.value_); |
| 790 | } |
| 791 | |
| 792 | void Assembler::immediate_arithmetic_op_8(byte subcode, Register dst, |
| 793 | Immediate src) { |
| 794 | EnsureSpace ensure_space(this); |
| 795 | if (!dst.is_byte_register()) { |
| 796 | // Register is not one of al, bl, cl, dl. Its encoding needs REX. |
| 797 | emit_rex_32(dst); |
| 798 | } |
| 799 | DCHECK(is_int8(src.value_) || is_uint8(src.value_))((void) 0); |
| 800 | emit(0x80); |
| 801 | emit_modrm(subcode, dst); |
| 802 | emit(src.value_); |
| 803 | } |
| 804 | |
| 805 | void Assembler::shift(Register dst, Immediate shift_amount, int subcode, |
| 806 | int size) { |
| 807 | EnsureSpace ensure_space(this); |
| 808 | DCHECK(size == kInt64Size ? is_uint6(shift_amount.value_)((void) 0) |
| 809 | : is_uint5(shift_amount.value_))((void) 0); |
| 810 | if (shift_amount.value_ == 1) { |
| 811 | emit_rex(dst, size); |
| 812 | emit(0xD1); |
| 813 | emit_modrm(subcode, dst); |
| 814 | } else { |
| 815 | emit_rex(dst, size); |
| 816 | emit(0xC1); |
| 817 | emit_modrm(subcode, dst); |
| 818 | emit(shift_amount.value_); |
| 819 | } |
| 820 | } |
| 821 | |
| 822 | void Assembler::shift(Operand dst, Immediate shift_amount, int subcode, |
| 823 | int size) { |
| 824 | EnsureSpace ensure_space(this); |
| 825 | DCHECK(size == kInt64Size ? is_uint6(shift_amount.value_)((void) 0) |
| 826 | : is_uint5(shift_amount.value_))((void) 0); |
| 827 | if (shift_amount.value_ == 1) { |
| 828 | emit_rex(dst, size); |
| 829 | emit(0xD1); |
| 830 | emit_operand(subcode, dst); |
| 831 | } else { |
| 832 | emit_rex(dst, size); |
| 833 | emit(0xC1); |
| 834 | emit_operand(subcode, dst); |
| 835 | emit(shift_amount.value_); |
| 836 | } |
| 837 | } |
| 838 | |
| 839 | void Assembler::shift(Register dst, int subcode, int size) { |
| 840 | EnsureSpace ensure_space(this); |
| 841 | emit_rex(dst, size); |
| 842 | emit(0xD3); |
| 843 | emit_modrm(subcode, dst); |
| 844 | } |
| 845 | |
| 846 | void Assembler::shift(Operand dst, int subcode, int size) { |
| 847 | EnsureSpace ensure_space(this); |
| 848 | emit_rex(dst, size); |
| 849 | emit(0xD3); |
| 850 | emit_operand(subcode, dst); |
| 851 | } |
| 852 | |
| 853 | void Assembler::bswapl(Register dst) { |
| 854 | EnsureSpace ensure_space(this); |
| 855 | emit_rex_32(dst); |
| 856 | emit(0x0F); |
| 857 | emit(0xC8 + dst.low_bits()); |
| 858 | } |
| 859 | |
| 860 | void Assembler::bswapq(Register dst) { |
| 861 | EnsureSpace ensure_space(this); |
| 862 | emit_rex_64(dst); |
| 863 | emit(0x0F); |
| 864 | emit(0xC8 + dst.low_bits()); |
| 865 | } |
| 866 | |
| 867 | void Assembler::btq(Operand dst, Register src) { |
| 868 | EnsureSpace ensure_space(this); |
| 869 | emit_rex_64(src, dst); |
| 870 | emit(0x0F); |
| 871 | emit(0xA3); |
| 872 | emit_operand(src, dst); |
| 873 | } |
| 874 | |
| 875 | void Assembler::btsq(Operand dst, Register src) { |
| 876 | EnsureSpace ensure_space(this); |
| 877 | emit_rex_64(src, dst); |
| 878 | emit(0x0F); |
| 879 | emit(0xAB); |
| 880 | emit_operand(src, dst); |
| 881 | } |
| 882 | |
| 883 | void Assembler::btsq(Register dst, Immediate imm8) { |
| 884 | EnsureSpace ensure_space(this); |
| 885 | emit_rex_64(dst); |
| 886 | emit(0x0F); |
| 887 | emit(0xBA); |
| 888 | emit_modrm(0x5, dst); |
| 889 | emit(imm8.value_); |
| 890 | } |
| 891 | |
| 892 | void Assembler::btrq(Register dst, Immediate imm8) { |
| 893 | EnsureSpace ensure_space(this); |
| 894 | emit_rex_64(dst); |
| 895 | emit(0x0F); |
| 896 | emit(0xBA); |
| 897 | emit_modrm(0x6, dst); |
| 898 | emit(imm8.value_); |
| 899 | } |
| 900 | |
| 901 | void Assembler::bsrl(Register dst, Register src) { |
| 902 | EnsureSpace ensure_space(this); |
| 903 | emit_optional_rex_32(dst, src); |
| 904 | emit(0x0F); |
| 905 | emit(0xBD); |
| 906 | emit_modrm(dst, src); |
| 907 | } |
| 908 | |
| 909 | void Assembler::bsrl(Register dst, Operand src) { |
| 910 | EnsureSpace ensure_space(this); |
| 911 | emit_optional_rex_32(dst, src); |
| 912 | emit(0x0F); |
| 913 | emit(0xBD); |
| 914 | emit_operand(dst, src); |
| 915 | } |
| 916 | |
| 917 | void Assembler::bsrq(Register dst, Register src) { |
| 918 | EnsureSpace ensure_space(this); |
| 919 | emit_rex_64(dst, src); |
| 920 | emit(0x0F); |
| 921 | emit(0xBD); |
| 922 | emit_modrm(dst, src); |
| 923 | } |
| 924 | |
| 925 | void Assembler::bsrq(Register dst, Operand src) { |
| 926 | EnsureSpace ensure_space(this); |
| 927 | emit_rex_64(dst, src); |
| 928 | emit(0x0F); |
| 929 | emit(0xBD); |
| 930 | emit_operand(dst, src); |
| 931 | } |
| 932 | |
| 933 | void Assembler::bsfl(Register dst, Register src) { |
| 934 | EnsureSpace ensure_space(this); |
| 935 | emit_optional_rex_32(dst, src); |
| 936 | emit(0x0F); |
| 937 | emit(0xBC); |
| 938 | emit_modrm(dst, src); |
| 939 | } |
| 940 | |
| 941 | void Assembler::bsfl(Register dst, Operand src) { |
| 942 | EnsureSpace ensure_space(this); |
| 943 | emit_optional_rex_32(dst, src); |
| 944 | emit(0x0F); |
| 945 | emit(0xBC); |
| 946 | emit_operand(dst, src); |
| 947 | } |
| 948 | |
| 949 | void Assembler::bsfq(Register dst, Register src) { |
| 950 | EnsureSpace ensure_space(this); |
| 951 | emit_rex_64(dst, src); |
| 952 | emit(0x0F); |
| 953 | emit(0xBC); |
| 954 | emit_modrm(dst, src); |
| 955 | } |
| 956 | |
| 957 | void Assembler::bsfq(Register dst, Operand src) { |
| 958 | EnsureSpace ensure_space(this); |
| 959 | emit_rex_64(dst, src); |
| 960 | emit(0x0F); |
| 961 | emit(0xBC); |
| 962 | emit_operand(dst, src); |
| 963 | } |
| 964 | |
| 965 | void Assembler::pblendw(XMMRegister dst, Operand src, uint8_t mask) { |
| 966 | sse4_instr(dst, src, 0x66, 0x0F, 0x3A, 0x0E); |
| 967 | emit(mask); |
| 968 | } |
| 969 | |
| 970 | void Assembler::pblendw(XMMRegister dst, XMMRegister src, uint8_t mask) { |
| 971 | sse4_instr(dst, src, 0x66, 0x0F, 0x3A, 0x0E); |
| 972 | emit(mask); |
| 973 | } |
| 974 | |
| 975 | void Assembler::palignr(XMMRegister dst, Operand src, uint8_t mask) { |
| 976 | ssse3_instr(dst, src, 0x66, 0x0F, 0x3A, 0x0F); |
| 977 | emit(mask); |
| 978 | } |
| 979 | |
| 980 | void Assembler::palignr(XMMRegister dst, XMMRegister src, uint8_t mask) { |
| 981 | ssse3_instr(dst, src, 0x66, 0x0F, 0x3A, 0x0F); |
| 982 | emit(mask); |
| 983 | } |
| 984 | |
| 985 | void Assembler::call(Label* L) { |
| 986 | EnsureSpace ensure_space(this); |
| 987 | // 1110 1000 #32-bit disp. |
| 988 | emit(0xE8); |
| 989 | if (L->is_bound()) { |
| 990 | int offset = L->pos() - pc_offset() - sizeof(int32_t); |
| 991 | DCHECK_LE(offset, 0)((void) 0); |
| 992 | emitl(offset); |
| 993 | } else if (L->is_linked()) { |
| 994 | emitl(L->pos()); |
| 995 | L->link_to(pc_offset() - sizeof(int32_t)); |
| 996 | } else { |
| 997 | DCHECK(L->is_unused())((void) 0); |
| 998 | int32_t current = pc_offset(); |
| 999 | emitl(current); |
| 1000 | L->link_to(current); |
| 1001 | } |
| 1002 | } |
| 1003 | |
| 1004 | void Assembler::call(Address entry, RelocInfo::Mode rmode) { |
| 1005 | DCHECK(RelocInfo::IsRuntimeEntry(rmode))((void) 0); |
| 1006 | EnsureSpace ensure_space(this); |
| 1007 | // 1110 1000 #32-bit disp. |
| 1008 | emit(0xE8); |
| 1009 | emit_runtime_entry(entry, rmode); |
| 1010 | } |
| 1011 | |
| 1012 | void Assembler::call(Handle<CodeT> target, RelocInfo::Mode rmode) { |
| 1013 | DCHECK(RelocInfo::IsCodeTarget(rmode))((void) 0); |
| 1014 | DCHECK(FromCodeT(*target).IsExecutable())((void) 0); |
| 1015 | EnsureSpace ensure_space(this); |
| 1016 | // 1110 1000 #32-bit disp. |
| 1017 | emit(0xE8); |
| 1018 | RecordRelocInfo(rmode); |
| 1019 | int code_target_index = AddCodeTarget(target); |
| 1020 | emitl(code_target_index); |
| 1021 | } |
| 1022 | |
| 1023 | void Assembler::near_call(intptr_t disp, RelocInfo::Mode rmode) { |
| 1024 | EnsureSpace ensure_space(this); |
| 1025 | emit(0xE8); |
| 1026 | DCHECK(is_int32(disp))((void) 0); |
| 1027 | RecordRelocInfo(rmode); |
| 1028 | emitl(static_cast<int32_t>(disp)); |
| 1029 | } |
| 1030 | |
| 1031 | void Assembler::near_jmp(intptr_t disp, RelocInfo::Mode rmode) { |
| 1032 | EnsureSpace ensure_space(this); |
| 1033 | emit(0xE9); |
| 1034 | DCHECK(is_int32(disp))((void) 0); |
| 1035 | if (!RelocInfo::IsNoInfo(rmode)) RecordRelocInfo(rmode); |
| 1036 | emitl(static_cast<int32_t>(disp)); |
| 1037 | } |
| 1038 | |
| 1039 | void Assembler::call(Register adr) { |
| 1040 | EnsureSpace ensure_space(this); |
| 1041 | // Opcode: FF /2 r64. |
| 1042 | emit_optional_rex_32(adr); |
| 1043 | emit(0xFF); |
| 1044 | emit_modrm(0x2, adr); |
| 1045 | } |
| 1046 | |
| 1047 | void Assembler::call(Operand op) { |
| 1048 | EnsureSpace ensure_space(this); |
| 1049 | // Opcode: FF /2 m64. |
| 1050 | emit_optional_rex_32(op); |
| 1051 | emit(0xFF); |
| 1052 | emit_operand(0x2, op); |
| 1053 | } |
| 1054 | |
| 1055 | void Assembler::clc() { |
| 1056 | EnsureSpace ensure_space(this); |
| 1057 | emit(0xF8); |
| 1058 | } |
| 1059 | |
| 1060 | void Assembler::cld() { |
| 1061 | EnsureSpace ensure_space(this); |
| 1062 | emit(0xFC); |
| 1063 | } |
| 1064 | |
| 1065 | void Assembler::cdq() { |
| 1066 | EnsureSpace ensure_space(this); |
| 1067 | emit(0x99); |
| 1068 | } |
| 1069 | |
| 1070 | void Assembler::cmovq(Condition cc, Register dst, Register src) { |
| 1071 | if (cc == always) { |
| 1072 | movq(dst, src); |
| 1073 | } else if (cc == never) { |
| 1074 | return; |
| 1075 | } |
| 1076 | // No need to check CpuInfo for CMOV support, it's a required part of the |
| 1077 | // 64-bit architecture. |
| 1078 | DCHECK_GE(cc, 0)((void) 0); // Use mov for unconditional moves. |
| 1079 | EnsureSpace ensure_space(this); |
| 1080 | // Opcode: REX.W 0f 40 + cc /r. |
| 1081 | emit_rex_64(dst, src); |
| 1082 | emit(0x0F); |
| 1083 | emit(0x40 + cc); |
| 1084 | emit_modrm(dst, src); |
| 1085 | } |
| 1086 | |
| 1087 | void Assembler::cmovq(Condition cc, Register dst, Operand src) { |
| 1088 | if (cc == always) { |
| 1089 | movq(dst, src); |
| 1090 | } else if (cc == never) { |
| 1091 | return; |
| 1092 | } |
| 1093 | DCHECK_GE(cc, 0)((void) 0); |
| 1094 | EnsureSpace ensure_space(this); |
| 1095 | // Opcode: REX.W 0f 40 + cc /r. |
| 1096 | emit_rex_64(dst, src); |
| 1097 | emit(0x0F); |
| 1098 | emit(0x40 + cc); |
| 1099 | emit_operand(dst, src); |
| 1100 | } |
| 1101 | |
| 1102 | void Assembler::cmovl(Condition cc, Register dst, Register src) { |
| 1103 | if (cc == always) { |
| 1104 | movl(dst, src); |
| 1105 | } else if (cc == never) { |
| 1106 | return; |
| 1107 | } |
| 1108 | DCHECK_GE(cc, 0)((void) 0); |
| 1109 | EnsureSpace ensure_space(this); |
| 1110 | // Opcode: 0f 40 + cc /r. |
| 1111 | emit_optional_rex_32(dst, src); |
| 1112 | emit(0x0F); |
| 1113 | emit(0x40 + cc); |
| 1114 | emit_modrm(dst, src); |
| 1115 | } |
| 1116 | |
| 1117 | void Assembler::cmovl(Condition cc, Register dst, Operand src) { |
| 1118 | if (cc == always) { |
| 1119 | movl(dst, src); |
| 1120 | } else if (cc == never) { |
| 1121 | return; |
| 1122 | } |
| 1123 | DCHECK_GE(cc, 0)((void) 0); |
| 1124 | EnsureSpace ensure_space(this); |
| 1125 | // Opcode: 0f 40 + cc /r. |
| 1126 | emit_optional_rex_32(dst, src); |
| 1127 | emit(0x0F); |
| 1128 | emit(0x40 + cc); |
| 1129 | emit_operand(dst, src); |
| 1130 | } |
| 1131 | |
| 1132 | void Assembler::cmpb_al(Immediate imm8) { |
| 1133 | DCHECK(is_int8(imm8.value_) || is_uint8(imm8.value_))((void) 0); |
| 1134 | EnsureSpace ensure_space(this); |
| 1135 | emit(0x3C); |
| 1136 | emit(imm8.value_); |
| 1137 | } |
| 1138 | |
| 1139 | void Assembler::lock() { |
| 1140 | EnsureSpace ensure_space(this); |
| 1141 | emit(0xF0); |
| 1142 | } |
| 1143 | |
| 1144 | void Assembler::xaddb(Operand dst, Register src) { |
| 1145 | EnsureSpace ensure_space(this); |
| 1146 | emit_optional_rex_8(src, dst); |
| 1147 | emit(0x0F); |
| 1148 | emit(0xC0); |
| 1149 | emit_operand(src, dst); |
| 1150 | } |
| 1151 | |
| 1152 | void Assembler::xaddw(Operand dst, Register src) { |
| 1153 | EnsureSpace ensure_space(this); |
| 1154 | emit(0x66); |
| 1155 | emit_optional_rex_32(src, dst); |
| 1156 | emit(0x0F); |
| 1157 | emit(0xC1); |
| 1158 | emit_operand(src, dst); |
| 1159 | } |
| 1160 | |
| 1161 | void Assembler::xaddl(Operand dst, Register src) { |
| 1162 | EnsureSpace ensure_space(this); |
| 1163 | emit_optional_rex_32(src, dst); |
| 1164 | emit(0x0F); |
| 1165 | emit(0xC1); |
| 1166 | emit_operand(src, dst); |
| 1167 | } |
| 1168 | |
| 1169 | void Assembler::xaddq(Operand dst, Register src) { |
| 1170 | EnsureSpace ensure_space(this); |
| 1171 | emit_rex(src, dst, kInt64Size); |
| 1172 | emit(0x0F); |
| 1173 | emit(0xC1); |
| 1174 | emit_operand(src, dst); |
| 1175 | } |
| 1176 | |
| 1177 | void Assembler::cmpxchgb(Operand dst, Register src) { |
| 1178 | EnsureSpace ensure_space(this); |
| 1179 | if (!src.is_byte_register()) { |
| 1180 | // Register is not one of al, bl, cl, dl. Its encoding needs REX. |
| 1181 | emit_rex_32(src, dst); |
| 1182 | } else { |
| 1183 | emit_optional_rex_32(src, dst); |
| 1184 | } |
| 1185 | emit(0x0F); |
| 1186 | emit(0xB0); |
| 1187 | emit_operand(src, dst); |
| 1188 | } |
| 1189 | |
| 1190 | void Assembler::cmpxchgw(Operand dst, Register src) { |
| 1191 | EnsureSpace ensure_space(this); |
| 1192 | emit(0x66); |
| 1193 | emit_optional_rex_32(src, dst); |
| 1194 | emit(0x0F); |
| 1195 | emit(0xB1); |
| 1196 | emit_operand(src, dst); |
| 1197 | } |
| 1198 | |
| 1199 | void Assembler::emit_cmpxchg(Operand dst, Register src, int size) { |
| 1200 | EnsureSpace ensure_space(this); |
| 1201 | emit_rex(src, dst, size); |
| 1202 | emit(0x0F); |
| 1203 | emit(0xB1); |
| 1204 | emit_operand(src, dst); |
| 1205 | } |
| 1206 | |
| 1207 | void Assembler::mfence() { |
| 1208 | EnsureSpace ensure_space(this); |
| 1209 | emit(0x0F); |
| 1210 | emit(0xAE); |
| 1211 | emit(0xF0); |
| 1212 | } |
| 1213 | |
| 1214 | void Assembler::lfence() { |
| 1215 | EnsureSpace ensure_space(this); |
| 1216 | emit(0x0F); |
| 1217 | emit(0xAE); |
| 1218 | emit(0xE8); |
| 1219 | } |
| 1220 | |
| 1221 | void Assembler::cpuid() { |
| 1222 | EnsureSpace ensure_space(this); |
| 1223 | emit(0x0F); |
| 1224 | emit(0xA2); |
| 1225 | } |
| 1226 | |
| 1227 | void Assembler::cqo() { |
| 1228 | EnsureSpace ensure_space(this); |
| 1229 | emit_rex_64(); |
| 1230 | emit(0x99); |
| 1231 | } |
| 1232 | |
| 1233 | void Assembler::emit_dec(Register dst, int size) { |
| 1234 | EnsureSpace ensure_space(this); |
| 1235 | emit_rex(dst, size); |
| 1236 | emit(0xFF); |
| 1237 | emit_modrm(0x1, dst); |
| 1238 | } |
| 1239 | |
| 1240 | void Assembler::emit_dec(Operand dst, int size) { |
| 1241 | EnsureSpace ensure_space(this); |
| 1242 | emit_rex(dst, size); |
| 1243 | emit(0xFF); |
| 1244 | emit_operand(1, dst); |
| 1245 | } |
| 1246 | |
| 1247 | void Assembler::decb(Register dst) { |
| 1248 | EnsureSpace ensure_space(this); |
| 1249 | if (!dst.is_byte_register()) { |
| 1250 | // Register is not one of al, bl, cl, dl. Its encoding needs REX. |
| 1251 | emit_rex_32(dst); |
| 1252 | } |
| 1253 | emit(0xFE); |
| 1254 | emit_modrm(0x1, dst); |
| 1255 | } |
| 1256 | |
| 1257 | void Assembler::decb(Operand dst) { |
| 1258 | EnsureSpace ensure_space(this); |
| 1259 | emit_optional_rex_32(dst); |
| 1260 | emit(0xFE); |
| 1261 | emit_operand(1, dst); |
| 1262 | } |
| 1263 | |
| 1264 | void Assembler::hlt() { |
| 1265 | EnsureSpace ensure_space(this); |
| 1266 | emit(0xF4); |
| 1267 | } |
| 1268 | |
| 1269 | void Assembler::emit_idiv(Register src, int size) { |
| 1270 | EnsureSpace ensure_space(this); |
| 1271 | emit_rex(src, size); |
| 1272 | emit(0xF7); |
| 1273 | emit_modrm(0x7, src); |
| 1274 | } |
| 1275 | |
| 1276 | void Assembler::emit_div(Register src, int size) { |
| 1277 | EnsureSpace ensure_space(this); |
| 1278 | emit_rex(src, size); |
| 1279 | emit(0xF7); |
| 1280 | emit_modrm(0x6, src); |
| 1281 | } |
| 1282 | |
| 1283 | void Assembler::emit_imul(Register src, int size) { |
| 1284 | EnsureSpace ensure_space(this); |
| 1285 | emit_rex(src, size); |
| 1286 | emit(0xF7); |
| 1287 | emit_modrm(0x5, src); |
| 1288 | } |
| 1289 | |
| 1290 | void Assembler::emit_imul(Operand src, int size) { |
| 1291 | EnsureSpace ensure_space(this); |
| 1292 | emit_rex(src, size); |
| 1293 | emit(0xF7); |
| 1294 | emit_operand(0x5, src); |
| 1295 | } |
| 1296 | |
| 1297 | void Assembler::emit_imul(Register dst, Register src, int size) { |
| 1298 | EnsureSpace ensure_space(this); |
| 1299 | emit_rex(dst, src, size); |
| 1300 | emit(0x0F); |
| 1301 | emit(0xAF); |
| 1302 | emit_modrm(dst, src); |
| 1303 | } |
| 1304 | |
| 1305 | void Assembler::emit_imul(Register dst, Operand src, int size) { |
| 1306 | EnsureSpace ensure_space(this); |
| 1307 | emit_rex(dst, src, size); |
| 1308 | emit(0x0F); |
| 1309 | emit(0xAF); |
| 1310 | emit_operand(dst, src); |
| 1311 | } |
| 1312 | |
| 1313 | void Assembler::emit_imul(Register dst, Register src, Immediate imm, int size) { |
| 1314 | EnsureSpace ensure_space(this); |
| 1315 | emit_rex(dst, src, size); |
| 1316 | if (is_int8(imm.value_)) { |
| 1317 | emit(0x6B); |
| 1318 | emit_modrm(dst, src); |
| 1319 | emit(imm.value_); |
| 1320 | } else { |
| 1321 | emit(0x69); |
| 1322 | emit_modrm(dst, src); |
| 1323 | emitl(imm.value_); |
| 1324 | } |
| 1325 | } |
| 1326 | |
| 1327 | void Assembler::emit_imul(Register dst, Operand src, Immediate imm, int size) { |
| 1328 | EnsureSpace ensure_space(this); |
| 1329 | emit_rex(dst, src, size); |
| 1330 | if (is_int8(imm.value_)) { |
| 1331 | emit(0x6B); |
| 1332 | emit_operand(dst, src); |
| 1333 | emit(imm.value_); |
| 1334 | } else { |
| 1335 | emit(0x69); |
| 1336 | emit_operand(dst, src); |
| 1337 | emitl(imm.value_); |
| 1338 | } |
| 1339 | } |
| 1340 | |
| 1341 | void Assembler::emit_inc(Register dst, int size) { |
| 1342 | EnsureSpace ensure_space(this); |
| 1343 | emit_rex(dst, size); |
| 1344 | emit(0xFF); |
| 1345 | emit_modrm(0x0, dst); |
| 1346 | } |
| 1347 | |
| 1348 | void Assembler::emit_inc(Operand dst, int size) { |
| 1349 | EnsureSpace ensure_space(this); |
| 1350 | emit_rex(dst, size); |
| 1351 | emit(0xFF); |
| 1352 | emit_operand(0, dst); |
| 1353 | } |
| 1354 | |
| 1355 | void Assembler::int3() { |
| 1356 | EnsureSpace ensure_space(this); |
| 1357 | emit(0xCC); |
| 1358 | } |
| 1359 | |
| 1360 | void Assembler::j(Condition cc, Label* L, Label::Distance distance) { |
| 1361 | if (cc == always) { |
| 1362 | jmp(L, distance); |
| 1363 | return; |
| 1364 | } else if (cc == never) { |
| 1365 | return; |
| 1366 | } |
| 1367 | EnsureSpace ensure_space(this); |
| 1368 | DCHECK(is_uint4(cc))((void) 0); |
| 1369 | if (L->is_bound()) { |
| 1370 | const int short_size = 2; |
| 1371 | const int long_size = 6; |
| 1372 | int offs = L->pos() - pc_offset(); |
| 1373 | DCHECK_LE(offs, 0)((void) 0); |
| 1374 | // Determine whether we can use 1-byte offsets for backwards branches, |
| 1375 | // which have a max range of 128 bytes. |
| 1376 | |
| 1377 | // We also need to check predictable_code_size() flag here, because on x64, |
| 1378 | // when the full code generator recompiles code for debugging, some places |
| 1379 | // need to be padded out to a certain size. The debugger is keeping track of |
| 1380 | // how often it did this so that it can adjust return addresses on the |
| 1381 | // stack, but if the size of jump instructions can also change, that's not |
| 1382 | // enough and the calculated offsets would be incorrect. |
| 1383 | if (is_int8(offs - short_size) && !predictable_code_size()) { |
| 1384 | // 0111 tttn #8-bit disp. |
| 1385 | emit(0x70 | cc); |
| 1386 | emit((offs - short_size) & 0xFF); |
| 1387 | } else { |
| 1388 | // 0000 1111 1000 tttn #32-bit disp. |
| 1389 | emit(0x0F); |
| 1390 | emit(0x80 | cc); |
| 1391 | emitl(offs - long_size); |
| 1392 | } |
| 1393 | } else if (distance == Label::kNear) { |
| 1394 | // 0111 tttn #8-bit disp |
| 1395 | emit(0x70 | cc); |
| 1396 | byte disp = 0x00; |
| 1397 | if (L->is_near_linked()) { |
| 1398 | int offset = L->near_link_pos() - pc_offset(); |
| 1399 | DCHECK(is_int8(offset))((void) 0); |
| 1400 | disp = static_cast<byte>(offset & 0xFF); |
| 1401 | } |
| 1402 | L->link_to(pc_offset(), Label::kNear); |
| 1403 | emit(disp); |
| 1404 | } else { |
| 1405 | auto jump_opt = jump_optimization_info(); |
| 1406 | if (V8_UNLIKELY(jump_opt)(__builtin_expect(!!(jump_opt), 0))) { |
| 1407 | if (jump_opt->is_optimizing() && is_optimizable_farjmp(farjmp_num_++)) { |
| 1408 | // 0111 tttn #8-bit disp |
| 1409 | emit(0x70 | cc); |
| 1410 | record_farjmp_position(L, pc_offset()); |
| 1411 | emit(0); |
| 1412 | return; |
| 1413 | } |
| 1414 | if (jump_opt->is_collecting()) { |
| 1415 | farjmp_positions_.push_back(pc_offset() + 2); |
| 1416 | } |
| 1417 | } |
| 1418 | if (L->is_linked()) { |
| 1419 | // 0000 1111 1000 tttn #32-bit disp. |
| 1420 | emit(0x0F); |
| 1421 | emit(0x80 | cc); |
| 1422 | emitl(L->pos()); |
| 1423 | L->link_to(pc_offset() - sizeof(int32_t)); |
| 1424 | } else { |
| 1425 | DCHECK(L->is_unused())((void) 0); |
| 1426 | emit(0x0F); |
| 1427 | emit(0x80 | cc); |
| 1428 | int32_t current = pc_offset(); |
| 1429 | emitl(current); |
| 1430 | L->link_to(current); |
| 1431 | } |
| 1432 | } |
| 1433 | } |
| 1434 | |
| 1435 | void Assembler::j(Condition cc, Address entry, RelocInfo::Mode rmode) { |
| 1436 | DCHECK(RelocInfo::IsWasmStubCall(rmode))((void) 0); |
| 1437 | EnsureSpace ensure_space(this); |
| 1438 | DCHECK(is_uint4(cc))((void) 0); |
| 1439 | emit(0x0F); |
| 1440 | emit(0x80 | cc); |
| 1441 | RecordRelocInfo(rmode); |
| 1442 | emitl(static_cast<int32_t>(entry)); |
| 1443 | } |
| 1444 | |
| 1445 | void Assembler::j(Condition cc, Handle<CodeT> target, RelocInfo::Mode rmode) { |
| 1446 | if (cc == always) { |
| 1447 | jmp(target, rmode); |
| 1448 | return; |
| 1449 | } else if (cc == never) { |
| 1450 | return; |
| 1451 | } |
| 1452 | EnsureSpace ensure_space(this); |
| 1453 | DCHECK(is_uint4(cc))((void) 0); |
| 1454 | // 0000 1111 1000 tttn #32-bit disp. |
| 1455 | emit(0x0F); |
| 1456 | emit(0x80 | cc); |
| 1457 | DCHECK(RelocInfo::IsCodeTarget(rmode))((void) 0); |
| 1458 | RecordRelocInfo(rmode); |
| 1459 | int code_target_index = AddCodeTarget(target); |
| 1460 | emitl(code_target_index); |
| 1461 | } |
| 1462 | |
| 1463 | void Assembler::jmp(Address entry, RelocInfo::Mode rmode) { |
| 1464 | DCHECK(RelocInfo::IsRuntimeEntry(rmode))((void) 0); |
| 1465 | EnsureSpace ensure_space(this); |
| 1466 | // 1110 1001 #32-bit disp. |
| 1467 | emit(0xE9); |
| 1468 | emit_runtime_entry(entry, rmode); |
| 1469 | } |
| 1470 | |
| 1471 | void Assembler::jmp_rel(int32_t offset) { |
| 1472 | EnsureSpace ensure_space(this); |
| 1473 | // The offset is encoded relative to the next instruction. |
| 1474 | constexpr int32_t kShortJmpDisplacement = 1 + sizeof(int8_t); |
| 1475 | constexpr int32_t kNearJmpDisplacement = 1 + sizeof(int32_t); |
| 1476 | DCHECK_LE(std::numeric_limits<int32_t>::min() + kNearJmpDisplacement, offset)((void) 0); |
| 1477 | if (is_int8(offset - kShortJmpDisplacement) && !predictable_code_size()) { |
| 1478 | // 0xEB #8-bit disp. |
| 1479 | emit(0xEB); |
| 1480 | emit(offset - kShortJmpDisplacement); |
| 1481 | } else { |
| 1482 | // 0xE9 #32-bit disp. |
| 1483 | emit(0xE9); |
| 1484 | emitl(offset - kNearJmpDisplacement); |
| 1485 | } |
| 1486 | } |
| 1487 | |
| 1488 | void Assembler::jmp(Label* L, Label::Distance distance) { |
| 1489 | const int long_size = sizeof(int32_t); |
| 1490 | |
| 1491 | if (L->is_bound()) { |
| 1492 | int offset = L->pos() - pc_offset(); |
| 1493 | DCHECK_LE(offset, 0)((void) 0); // backward jump. |
| 1494 | jmp_rel(offset); |
| 1495 | return; |
| 1496 | } |
| 1497 | |
| 1498 | EnsureSpace ensure_space(this); |
| 1499 | if (distance == Label::kNear) { |
| 1500 | emit(0xEB); |
| 1501 | byte disp = 0x00; |
| 1502 | if (L->is_near_linked()) { |
| 1503 | int offset = L->near_link_pos() - pc_offset(); |
| 1504 | DCHECK(is_int8(offset))((void) 0); |
| 1505 | disp = static_cast<byte>(offset & 0xFF); |
| 1506 | } |
| 1507 | L->link_to(pc_offset(), Label::kNear); |
| 1508 | emit(disp); |
| 1509 | } else { |
| 1510 | auto jump_opt = jump_optimization_info(); |
| 1511 | if (V8_UNLIKELY(jump_opt)(__builtin_expect(!!(jump_opt), 0))) { |
| 1512 | if (jump_opt->is_optimizing() && is_optimizable_farjmp(farjmp_num_++)) { |
| 1513 | emit(0xEB); |
| 1514 | record_farjmp_position(L, pc_offset()); |
| 1515 | emit(0); |
| 1516 | return; |
| 1517 | } |
| 1518 | if (jump_opt->is_collecting()) { |
| 1519 | farjmp_positions_.push_back(pc_offset() + 1); |
| 1520 | } |
| 1521 | } |
| 1522 | if (L->is_linked()) { |
| 1523 | // 1110 1001 #32-bit disp. |
| 1524 | emit(0xE9); |
| 1525 | emitl(L->pos()); |
| 1526 | L->link_to(pc_offset() - long_size); |
| 1527 | } else { |
| 1528 | // 1110 1001 #32-bit disp. |
| 1529 | DCHECK(L->is_unused())((void) 0); |
| 1530 | emit(0xE9); |
| 1531 | int32_t current = pc_offset(); |
| 1532 | emitl(current); |
| 1533 | L->link_to(current); |
| 1534 | } |
| 1535 | } |
| 1536 | } |
| 1537 | |
| 1538 | void Assembler::jmp(Handle<CodeT> target, RelocInfo::Mode rmode) { |
| 1539 | DCHECK(RelocInfo::IsCodeTarget(rmode))((void) 0); |
| 1540 | EnsureSpace ensure_space(this); |
| 1541 | // 1110 1001 #32-bit disp. |
| 1542 | emit(0xE9); |
| 1543 | RecordRelocInfo(rmode); |
| 1544 | int code_target_index = AddCodeTarget(target); |
| 1545 | emitl(code_target_index); |
| 1546 | } |
| 1547 | |
| 1548 | void Assembler::jmp(Register target) { |
| 1549 | EnsureSpace ensure_space(this); |
| 1550 | // Opcode FF/4 r64. |
| 1551 | emit_optional_rex_32(target); |
| 1552 | emit(0xFF); |
| 1553 | emit_modrm(0x4, target); |
| 1554 | } |
| 1555 | |
| 1556 | void Assembler::jmp(Operand src) { |
| 1557 | EnsureSpace ensure_space(this); |
| 1558 | // Opcode FF/4 m64. |
| 1559 | emit_optional_rex_32(src); |
| 1560 | emit(0xFF); |
| 1561 | emit_operand(0x4, src); |
| 1562 | } |
| 1563 | |
| 1564 | void Assembler::emit_lea(Register dst, Operand src, int size) { |
| 1565 | EnsureSpace ensure_space(this); |
| 1566 | emit_rex(dst, src, size); |
| 1567 | emit(0x8D); |
| 1568 | emit_operand(dst, src); |
| 1569 | } |
| 1570 | |
| 1571 | void Assembler::load_rax(Address value, RelocInfo::Mode mode) { |
| 1572 | EnsureSpace ensure_space(this); |
| 1573 | emit(0x48); // REX.W |
| 1574 | emit(0xA1); |
| 1575 | emit(Immediate64(value, mode)); |
| 1576 | } |
| 1577 | |
| 1578 | void Assembler::load_rax(ExternalReference ref) { |
| 1579 | load_rax(ref.address(), RelocInfo::EXTERNAL_REFERENCE); |
| 1580 | } |
| 1581 | |
| 1582 | void Assembler::leave() { |
| 1583 | EnsureSpace ensure_space(this); |
| 1584 | emit(0xC9); |
| 1585 | } |
| 1586 | |
| 1587 | void Assembler::movb(Register dst, Operand src) { |
| 1588 | EnsureSpace ensure_space(this); |
| 1589 | if (!dst.is_byte_register()) { |
| 1590 | // Register is not one of al, bl, cl, dl. Its encoding needs REX. |
| 1591 | emit_rex_32(dst, src); |
| 1592 | } else { |
| 1593 | emit_optional_rex_32(dst, src); |
| 1594 | } |
| 1595 | emit(0x8A); |
| 1596 | emit_operand(dst, src); |
| 1597 | } |
| 1598 | |
| 1599 | void Assembler::movb(Register dst, Immediate imm) { |
| 1600 | EnsureSpace ensure_space(this); |
| 1601 | if (!dst.is_byte_register()) { |
| 1602 | // Register is not one of al, bl, cl, dl. Its encoding needs REX. |
| 1603 | emit_rex_32(dst); |
| 1604 | } |
| 1605 | emit(0xB0 + dst.low_bits()); |
| 1606 | emit(imm.value_); |
| 1607 | } |
| 1608 | |
| 1609 | void Assembler::movb(Operand dst, Register src) { |
| 1610 | EnsureSpace ensure_space(this); |
| 1611 | if (!src.is_byte_register()) { |
| 1612 | // Register is not one of al, bl, cl, dl. Its encoding needs REX. |
| 1613 | emit_rex_32(src, dst); |
| 1614 | } else { |
| 1615 | emit_optional_rex_32(src, dst); |
| 1616 | } |
| 1617 | emit(0x88); |
| 1618 | emit_operand(src, dst); |
| 1619 | } |
| 1620 | |
| 1621 | void Assembler::movb(Operand dst, Immediate imm) { |
| 1622 | EnsureSpace ensure_space(this); |
| 1623 | emit_optional_rex_32(dst); |
| 1624 | emit(0xC6); |
| 1625 | emit_operand(0x0, dst); |
| 1626 | emit(static_cast<byte>(imm.value_)); |
| 1627 | } |
| 1628 | |
| 1629 | void Assembler::movw(Register dst, Operand src) { |
| 1630 | EnsureSpace ensure_space(this); |
| 1631 | emit(0x66); |
| 1632 | emit_optional_rex_32(dst, src); |
| 1633 | emit(0x8B); |
| 1634 | emit_operand(dst, src); |
| 1635 | } |
| 1636 | |
| 1637 | void Assembler::movw(Operand dst, Register src) { |
| 1638 | EnsureSpace ensure_space(this); |
| 1639 | emit(0x66); |
| 1640 | emit_optional_rex_32(src, dst); |
| 1641 | emit(0x89); |
| 1642 | emit_operand(src, dst); |
| 1643 | } |
| 1644 | |
| 1645 | void Assembler::movw(Operand dst, Immediate imm) { |
| 1646 | EnsureSpace ensure_space(this); |
| 1647 | emit(0x66); |
| 1648 | emit_optional_rex_32(dst); |
| 1649 | emit(0xC7); |
| 1650 | emit_operand(0x0, dst); |
| 1651 | emit(static_cast<byte>(imm.value_ & 0xFF)); |
| 1652 | emit(static_cast<byte>(imm.value_ >> 8)); |
| 1653 | } |
| 1654 | |
| 1655 | void Assembler::emit_mov(Register dst, Operand src, int size) { |
| 1656 | EnsureSpace ensure_space(this); |
| 1657 | emit_rex(dst, src, size); |
| 1658 | emit(0x8B); |
| 1659 | emit_operand(dst, src); |
| 1660 | } |
| 1661 | |
| 1662 | void Assembler::emit_mov(Register dst, Register src, int size) { |
| 1663 | EnsureSpace ensure_space(this); |
| 1664 | if (src.low_bits() == 4) { |
| 1665 | emit_rex(src, dst, size); |
| 1666 | emit(0x89); |
| 1667 | emit_modrm(src, dst); |
| 1668 | } else { |
| 1669 | emit_rex(dst, src, size); |
| 1670 | emit(0x8B); |
| 1671 | emit_modrm(dst, src); |
| 1672 | } |
| 1673 | |
| 1674 | #if defined(V8_OS_WIN_X64) |
| 1675 | if (xdata_encoder_ && dst == rbp && src == rsp) { |
| 1676 | xdata_encoder_->onMovRbpRsp(); |
| 1677 | } |
| 1678 | #endif |
| 1679 | } |
| 1680 | |
| 1681 | void Assembler::emit_mov(Operand dst, Register src, int size) { |
| 1682 | EnsureSpace ensure_space(this); |
| 1683 | emit_rex(src, dst, size); |
| 1684 | emit(0x89); |
| 1685 | emit_operand(src, dst); |
| 1686 | } |
| 1687 | |
| 1688 | void Assembler::emit_mov(Register dst, Immediate value, int size) { |
| 1689 | EnsureSpace ensure_space(this); |
| 1690 | emit_rex(dst, size); |
| 1691 | if (size == kInt64Size) { |
| 1692 | emit(0xC7); |
| 1693 | emit_modrm(0x0, dst); |
| 1694 | } else { |
| 1695 | DCHECK_EQ(size, kInt32Size)((void) 0); |
| 1696 | emit(0xB8 + dst.low_bits()); |
| 1697 | } |
| 1698 | emit(value); |
| 1699 | } |
| 1700 | |
| 1701 | void Assembler::emit_mov(Operand dst, Immediate value, int size) { |
| 1702 | EnsureSpace ensure_space(this); |
| 1703 | emit_rex(dst, size); |
| 1704 | emit(0xC7); |
| 1705 | emit_operand(0x0, dst); |
| 1706 | emit(value); |
| 1707 | } |
| 1708 | |
| 1709 | void Assembler::emit_mov(Register dst, Immediate64 value, int size) { |
| 1710 | DCHECK_EQ(size, kInt64Size)((void) 0); |
| 1711 | if (constpool_.TryRecordEntry(value.value_, value.rmode_)) { |
| 1712 | // Emit rip-relative move with offset = 0 |
| 1713 | Label label; |
| 1714 | emit_mov(dst, Operand(&label, 0), size); |
| 1715 | bind(&label); |
| 1716 | } else { |
| 1717 | EnsureSpace ensure_space(this); |
| 1718 | emit_rex(dst, size); |
| 1719 | emit(0xB8 | dst.low_bits()); |
| 1720 | emit(value); |
| 1721 | } |
| 1722 | } |
| 1723 | |
| 1724 | void Assembler::movq_imm64(Register dst, int64_t value) { |
| 1725 | EnsureSpace ensure_space(this); |
| 1726 | emit_rex(dst, kInt64Size); |
| 1727 | emit(0xB8 | dst.low_bits()); |
| 1728 | emitq(static_cast<uint64_t>(value)); |
| 1729 | } |
| 1730 | |
| 1731 | void Assembler::movq_heap_number(Register dst, double value) { |
| 1732 | EnsureSpace ensure_space(this); |
| 1733 | emit_rex(dst, kInt64Size); |
| 1734 | emit(0xB8 | dst.low_bits()); |
| 1735 | RequestHeapObject(HeapObjectRequest(value)); |
| 1736 | emit(Immediate64(kNullAddress, RelocInfo::FULL_EMBEDDED_OBJECT)); |
| 1737 | } |
| 1738 | |
| 1739 | void Assembler::movq_string(Register dst, const StringConstantBase* str) { |
| 1740 | EnsureSpace ensure_space(this); |
| 1741 | emit_rex(dst, kInt64Size); |
| 1742 | emit(0xB8 | dst.low_bits()); |
| 1743 | RequestHeapObject(HeapObjectRequest(str)); |
| 1744 | emit(Immediate64(kNullAddress, RelocInfo::FULL_EMBEDDED_OBJECT)); |
| 1745 | } |
| 1746 | |
| 1747 | // Loads the ip-relative location of the src label into the target location |
| 1748 | // (as a 32-bit offset sign extended to 64-bit). |
| 1749 | void Assembler::movl(Operand dst, Label* src) { |
| 1750 | EnsureSpace ensure_space(this); |
| 1751 | emit_optional_rex_32(dst); |
| 1752 | emit(0xC7); |
| 1753 | emit_operand(0, dst); |
| 1754 | if (src->is_bound()) { |
| 1755 | int offset = src->pos() - pc_offset() - sizeof(int32_t); |
| 1756 | DCHECK_LE(offset, 0)((void) 0); |
| 1757 | emitl(offset); |
| 1758 | } else if (src->is_linked()) { |
| 1759 | emitl(src->pos()); |
| 1760 | src->link_to(pc_offset() - sizeof(int32_t)); |
| 1761 | } else { |
| 1762 | DCHECK(src->is_unused())((void) 0); |
| 1763 | int32_t current = pc_offset(); |
| 1764 | emitl(current); |
| 1765 | src->link_to(current); |
| 1766 | } |
| 1767 | } |
| 1768 | |
| 1769 | void Assembler::movsxbl(Register dst, Register src) { |
| 1770 | EnsureSpace ensure_space(this); |
| 1771 | if (!src.is_byte_register()) { |
| 1772 | // Register is not one of al, bl, cl, dl. Its encoding needs REX. |
| 1773 | emit_rex_32(dst, src); |
| 1774 | } else { |
| 1775 | emit_optional_rex_32(dst, src); |
| 1776 | } |
| 1777 | emit(0x0F); |
| 1778 | emit(0xBE); |
| 1779 | emit_modrm(dst, src); |
| 1780 | } |
| 1781 | |
| 1782 | void Assembler::movsxbl(Register dst, Operand src) { |
| 1783 | EnsureSpace ensure_space(this); |
| 1784 | emit_optional_rex_32(dst, src); |
| 1785 | emit(0x0F); |
| 1786 | emit(0xBE); |
| 1787 | emit_operand(dst, src); |
| 1788 | } |
| 1789 | |
| 1790 | void Assembler::movsxbq(Register dst, Operand src) { |
| 1791 | EnsureSpace ensure_space(this); |
| 1792 | emit_rex_64(dst, src); |
| 1793 | emit(0x0F); |
| 1794 | emit(0xBE); |
| 1795 | emit_operand(dst, src); |
| 1796 | } |
| 1797 | |
| 1798 | void Assembler::movsxbq(Register dst, Register src) { |
| 1799 | EnsureSpace ensure_space(this); |
| 1800 | emit_rex_64(dst, src); |
| 1801 | emit(0x0F); |
| 1802 | emit(0xBE); |
| 1803 | emit_modrm(dst, src); |
| 1804 | } |
| 1805 | |
| 1806 | void Assembler::movsxwl(Register dst, Register src) { |
| 1807 | EnsureSpace ensure_space(this); |
| 1808 | emit_optional_rex_32(dst, src); |
| 1809 | emit(0x0F); |
| 1810 | emit(0xBF); |
| 1811 | emit_modrm(dst, src); |
| 1812 | } |
| 1813 | |
| 1814 | void Assembler::movsxwl(Register dst, Operand src) { |
| 1815 | EnsureSpace ensure_space(this); |
| 1816 | emit_optional_rex_32(dst, src); |
| 1817 | emit(0x0F); |
| 1818 | emit(0xBF); |
| 1819 | emit_operand(dst, src); |
| 1820 | } |
| 1821 | |
| 1822 | void Assembler::movsxwq(Register dst, Operand src) { |
| 1823 | EnsureSpace ensure_space(this); |
| 1824 | emit_rex_64(dst, src); |
| 1825 | emit(0x0F); |
| 1826 | emit(0xBF); |
| 1827 | emit_operand(dst, src); |
| 1828 | } |
| 1829 | |
| 1830 | void Assembler::movsxwq(Register dst, Register src) { |
| 1831 | EnsureSpace ensure_space(this); |
| 1832 | emit_rex_64(dst, src); |
| 1833 | emit(0x0F); |
| 1834 | emit(0xBF); |
| 1835 | emit_modrm(dst, src); |
| 1836 | } |
| 1837 | |
| 1838 | void Assembler::movsxlq(Register dst, Register src) { |
| 1839 | EnsureSpace ensure_space(this); |
| 1840 | emit_rex_64(dst, src); |
| 1841 | emit(0x63); |
| 1842 | emit_modrm(dst, src); |
| 1843 | } |
| 1844 | |
| 1845 | void Assembler::movsxlq(Register dst, Operand src) { |
| 1846 | EnsureSpace ensure_space(this); |
| 1847 | emit_rex_64(dst, src); |
| 1848 | emit(0x63); |
| 1849 | emit_operand(dst, src); |
| 1850 | } |
| 1851 | |
| 1852 | void Assembler::emit_movzxb(Register dst, Operand src, int size) { |
| 1853 | EnsureSpace ensure_space(this); |
| 1854 | // 32 bit operations zero the top 32 bits of 64 bit registers. Therefore |
| 1855 | // there is no need to make this a 64 bit operation. |
| 1856 | emit_optional_rex_32(dst, src); |
| 1857 | emit(0x0F); |
| 1858 | emit(0xB6); |
| 1859 | emit_operand(dst, src); |
| 1860 | } |
| 1861 | |
| 1862 | void Assembler::emit_movzxb(Register dst, Register src, int size) { |
| 1863 | EnsureSpace ensure_space(this); |
| 1864 | // 32 bit operations zero the top 32 bits of 64 bit registers. Therefore |
| 1865 | // there is no need to make this a 64 bit operation. |
| 1866 | if (!src.is_byte_register()) { |
| 1867 | // Register is not one of al, bl, cl, dl. Its encoding needs REX. |
| 1868 | emit_rex_32(dst, src); |
| 1869 | } else { |
| 1870 | emit_optional_rex_32(dst, src); |
| 1871 | } |
| 1872 | emit(0x0F); |
| 1873 | emit(0xB6); |
| 1874 | emit_modrm(dst, src); |
| 1875 | } |
| 1876 | |
| 1877 | void Assembler::emit_movzxw(Register dst, Operand src, int size) { |
| 1878 | EnsureSpace ensure_space(this); |
| 1879 | // 32 bit operations zero the top 32 bits of 64 bit registers. Therefore |
| 1880 | // there is no need to make this a 64 bit operation. |
| 1881 | emit_optional_rex_32(dst, src); |
| 1882 | emit(0x0F); |
| 1883 | emit(0xB7); |
| 1884 | emit_operand(dst, src); |
| 1885 | } |
| 1886 | |
| 1887 | void Assembler::emit_movzxw(Register dst, Register src, int size) { |
| 1888 | EnsureSpace ensure_space(this); |
| 1889 | // 32 bit operations zero the top 32 bits of 64 bit registers. Therefore |
| 1890 | // there is no need to make this a 64 bit operation. |
| 1891 | emit_optional_rex_32(dst, src); |
| 1892 | emit(0x0F); |
| 1893 | emit(0xB7); |
| 1894 | emit_modrm(dst, src); |
| 1895 | } |
| 1896 | |
| 1897 | void Assembler::repmovsb() { |
| 1898 | EnsureSpace ensure_space(this); |
| 1899 | emit(0xF3); |
| 1900 | emit(0xA4); |
| 1901 | } |
| 1902 | |
| 1903 | void Assembler::repmovsw() { |
| 1904 | EnsureSpace ensure_space(this); |
| 1905 | emit(0x66); // Operand size override. |
| 1906 | emit(0xF3); |
| 1907 | emit(0xA4); |
| 1908 | } |
| 1909 | |
| 1910 | void Assembler::emit_repmovs(int size) { |
| 1911 | EnsureSpace ensure_space(this); |
| 1912 | emit(0xF3); |
| 1913 | emit_rex(size); |
| 1914 | emit(0xA5); |
| 1915 | } |
| 1916 | |
| 1917 | void Assembler::repstosl() { |
| 1918 | EnsureSpace ensure_space(this); |
| 1919 | emit(0xF3); |
| 1920 | emit(0xAB); |
| 1921 | } |
| 1922 | |
| 1923 | void Assembler::repstosq() { |
| 1924 | EnsureSpace ensure_space(this); |
| 1925 | emit(0xF3); |
| 1926 | emit_rex_64(); |
| 1927 | emit(0xAB); |
| 1928 | } |
| 1929 | |
| 1930 | void Assembler::mull(Register src) { |
| 1931 | EnsureSpace ensure_space(this); |
| 1932 | emit_optional_rex_32(src); |
| 1933 | emit(0xF7); |
| 1934 | emit_modrm(0x4, src); |
| 1935 | } |
| 1936 | |
| 1937 | void Assembler::mull(Operand src) { |
| 1938 | EnsureSpace ensure_space(this); |
| 1939 | emit_optional_rex_32(src); |
| 1940 | emit(0xF7); |
| 1941 | emit_operand(0x4, src); |
| 1942 | } |
| 1943 | |
| 1944 | void Assembler::mulq(Register src) { |
| 1945 | EnsureSpace ensure_space(this); |
| 1946 | emit_rex_64(src); |
| 1947 | emit(0xF7); |
| 1948 | emit_modrm(0x4, src); |
| 1949 | } |
| 1950 | |
| 1951 | void Assembler::negb(Register reg) { |
| 1952 | EnsureSpace ensure_space(this); |
| 1953 | emit_optional_rex_8(reg); |
| 1954 | emit(0xF6); |
| 1955 | emit_modrm(0x3, reg); |
| 1956 | } |
| 1957 | |
| 1958 | void Assembler::negw(Register reg) { |
| 1959 | EnsureSpace ensure_space(this); |
| 1960 | emit(0x66); |
| 1961 | emit_optional_rex_32(reg); |
| 1962 | emit(0xF7); |
| 1963 | emit_modrm(0x3, reg); |
| 1964 | } |
| 1965 | |
| 1966 | void Assembler::negl(Register reg) { |
| 1967 | EnsureSpace ensure_space(this); |
| 1968 | emit_optional_rex_32(reg); |
| 1969 | emit(0xF7); |
| 1970 | emit_modrm(0x3, reg); |
| 1971 | } |
| 1972 | |
| 1973 | void Assembler::negq(Register reg) { |
| 1974 | EnsureSpace ensure_space(this); |
| 1975 | emit_rex_64(reg); |
| 1976 | emit(0xF7); |
| 1977 | emit_modrm(0x3, reg); |
| 1978 | } |
| 1979 | |
| 1980 | void Assembler::negb(Operand op) { |
| 1981 | EnsureSpace ensure_space(this); |
| 1982 | emit_optional_rex_32(op); |
| 1983 | emit(0xF6); |
| 1984 | emit_operand(0x3, op); |
| 1985 | } |
| 1986 | |
| 1987 | void Assembler::negw(Operand op) { |
| 1988 | EnsureSpace ensure_space(this); |
| 1989 | emit(0x66); |
| 1990 | emit_optional_rex_32(op); |
| 1991 | emit(0xF7); |
| 1992 | emit_operand(0x3, op); |
| 1993 | } |
| 1994 | |
| 1995 | void Assembler::negl(Operand op) { |
| 1996 | EnsureSpace ensure_space(this); |
| 1997 | emit_optional_rex_32(op); |
| 1998 | emit(0xF7); |
| 1999 | emit_operand(0x3, op); |
| 2000 | } |
| 2001 | |
| 2002 | void Assembler::negq(Operand op) { |
| 2003 | EnsureSpace ensure_space(this); |
| 2004 | emit_rex_64(op); |
| 2005 | emit(0xF7); |
| 2006 | emit_operand(0x3, op); |
| 2007 | } |
| 2008 | |
| 2009 | void Assembler::nop() { |
| 2010 | EnsureSpace ensure_space(this); |
| 2011 | emit(0x90); |
| 2012 | } |
| 2013 | |
| 2014 | void Assembler::emit_not(Register dst, int size) { |
| 2015 | EnsureSpace ensure_space(this); |
| 2016 | emit_rex(dst, size); |
| 2017 | emit(0xF7); |
| 2018 | emit_modrm(0x2, dst); |
| 2019 | } |
| 2020 | |
| 2021 | void Assembler::emit_not(Operand dst, int size) { |
| 2022 | EnsureSpace ensure_space(this); |
| 2023 | emit_rex(dst, size); |
| 2024 | emit(0xF7); |
| 2025 | emit_operand(2, dst); |
| 2026 | } |
| 2027 | |
| 2028 | void Assembler::Nop(int n) { |
| 2029 | DCHECK_LE(0, n)((void) 0); |
| 2030 | // The recommended muti-byte sequences of NOP instructions from the Intel 64 |
| 2031 | // and IA-32 Architectures Software Developer's Manual. |
| 2032 | // |
| 2033 | // Len Assembly Byte Sequence |
| 2034 | // 2 66 NOP 66 90H |
| 2035 | // 3 NOP DWORD ptr [EAX] 0F 1F 00H |
| 2036 | // 4 NOP DWORD ptr [EAX + 00H] 0F 1F 40 00H |
| 2037 | // 5 NOP DWORD ptr [EAX + EAX*1 + 00H] 0F 1F 44 00 00H |
| 2038 | // 6 66 NOP DWORD ptr [EAX + EAX*1 + 00H] 66 0F 1F 44 00 00H |
| 2039 | // 7 NOP DWORD ptr [EAX + 00000000H] 0F 1F 80 00 00 00 00H |
| 2040 | // 8 NOP DWORD ptr [EAX + EAX*1 + 00000000H] 0F 1F 84 00 00 00 00 00H |
| 2041 | // 9 66 NOP DWORD ptr [EAX + EAX*1 + 00000000H] 66 0F 1F 84 00 00 00 00 00H |
| 2042 | |
| 2043 | constexpr const char* kNopSequences = |
| 2044 | "\x66\x90" // length 1 (@1) / 2 (@0) |
| 2045 | "\x0F\x1F\x00" // length 3 (@2) |
| 2046 | "\x0F\x1F\x40\x00" // length 4 (@5) |
| 2047 | "\x66\x0F\x1F\x44\x00\x00" // length 5 (@10) / 6 (@9) |
| 2048 | "\x0F\x1F\x80\x00\x00\x00\x00" // length 7 (@15) |
| 2049 | "\x66\x0F\x1F\x84\x00\x00\x00\x00\x00"; // length 8 (@23) / 9 (@22) |
| 2050 | constexpr int8_t kNopOffsets[10] = {0, 1, 0, 2, 5, 10, 9, 15, 23, 22}; |
| 2051 | |
| 2052 | do { |
| 2053 | EnsureSpace ensure_space(this); |
| 2054 | int nop_bytes = std::min(n, 9); |
| 2055 | const char* sequence = kNopSequences + kNopOffsets[nop_bytes]; |
| 2056 | memcpy(pc_, sequence, nop_bytes); |
| 2057 | pc_ += nop_bytes; |
| 2058 | n -= nop_bytes; |
| 2059 | } while (n); |
| 2060 | } |
| 2061 | |
| 2062 | void Assembler::popq(Register dst) { |
| 2063 | EnsureSpace ensure_space(this); |
| 2064 | emit_optional_rex_32(dst); |
| 2065 | emit(0x58 | dst.low_bits()); |
| 2066 | } |
| 2067 | |
| 2068 | void Assembler::popq(Operand dst) { |
| 2069 | EnsureSpace ensure_space(this); |
| 2070 | emit_optional_rex_32(dst); |
| 2071 | emit(0x8F); |
| 2072 | emit_operand(0, dst); |
| 2073 | } |
| 2074 | |
| 2075 | void Assembler::popfq() { |
| 2076 | EnsureSpace ensure_space(this); |
| 2077 | emit(0x9D); |
| 2078 | } |
| 2079 | |
| 2080 | void Assembler::pushq(Register src) { |
| 2081 | EnsureSpace ensure_space(this); |
| 2082 | emit_optional_rex_32(src); |
| 2083 | emit(0x50 | src.low_bits()); |
| 2084 | |
| 2085 | #if defined(V8_OS_WIN_X64) |
| 2086 | if (xdata_encoder_ && src == rbp) { |
| 2087 | xdata_encoder_->onPushRbp(); |
| 2088 | } |
| 2089 | #endif |
| 2090 | } |
| 2091 | |
| 2092 | void Assembler::pushq(Operand src) { |
| 2093 | EnsureSpace ensure_space(this); |
| 2094 | emit_optional_rex_32(src); |
| 2095 | emit(0xFF); |
| 2096 | emit_operand(6, src); |
| 2097 | } |
| 2098 | |
| 2099 | void Assembler::pushq(Immediate value) { |
| 2100 | EnsureSpace ensure_space(this); |
| 2101 | if (is_int8(value.value_)) { |
| 2102 | emit(0x6A); |
| 2103 | emit(value.value_); // Emit low byte of value. |
| 2104 | } else { |
| 2105 | emit(0x68); |
| 2106 | emitl(value.value_); |
| 2107 | } |
| 2108 | } |
| 2109 | |
| 2110 | void Assembler::pushq_imm32(int32_t imm32) { |
| 2111 | EnsureSpace ensure_space(this); |
| 2112 | emit(0x68); |
| 2113 | emitl(imm32); |
| 2114 | } |
| 2115 | |
| 2116 | void Assembler::pushfq() { |
| 2117 | EnsureSpace ensure_space(this); |
| 2118 | emit(0x9C); |
| 2119 | } |
| 2120 | |
| 2121 | void Assembler::incsspq(Register number_of_words) { |
| 2122 | EnsureSpace ensure_space(this); |
| 2123 | emit(0xF3); |
| 2124 | emit_rex_64(number_of_words); |
| 2125 | emit(0x0F); |
| 2126 | emit(0xAE); |
| 2127 | emit(0xE8 | number_of_words.low_bits()); |
| 2128 | } |
| 2129 | |
| 2130 | void Assembler::ret(int imm16) { |
| 2131 | EnsureSpace ensure_space(this); |
| 2132 | DCHECK(is_uint16(imm16))((void) 0); |
| 2133 | if (imm16 == 0) { |
| 2134 | emit(0xC3); |
| 2135 | } else { |
| 2136 | emit(0xC2); |
| 2137 | emit(imm16 & 0xFF); |
| 2138 | emit((imm16 >> 8) & 0xFF); |
| 2139 | } |
| 2140 | } |
| 2141 | |
| 2142 | void Assembler::ud2() { |
| 2143 | EnsureSpace ensure_space(this); |
| 2144 | emit(0x0F); |
| 2145 | emit(0x0B); |
| 2146 | } |
| 2147 | |
| 2148 | void Assembler::setcc(Condition cc, Register reg) { |
| 2149 | if (cc > last_condition) { |
| 2150 | movb(reg, Immediate(cc == always ? 1 : 0)); |
| 2151 | return; |
| 2152 | } |
| 2153 | EnsureSpace ensure_space(this); |
| 2154 | DCHECK(is_uint4(cc))((void) 0); |
| 2155 | if (!reg.is_byte_register()) { |
| 2156 | // Register is not one of al, bl, cl, dl. Its encoding needs REX. |
| 2157 | emit_rex_32(reg); |
| 2158 | } |
| 2159 | emit(0x0F); |
| 2160 | emit(0x90 | cc); |
| 2161 | emit_modrm(0x0, reg); |
| 2162 | } |
| 2163 | |
| 2164 | void Assembler::shld(Register dst, Register src) { |
| 2165 | EnsureSpace ensure_space(this); |
| 2166 | emit_rex_64(src, dst); |
| 2167 | emit(0x0F); |
| 2168 | emit(0xA5); |
| 2169 | emit_modrm(src, dst); |
| 2170 | } |
| 2171 | |
| 2172 | void Assembler::shrd(Register dst, Register src) { |
| 2173 | EnsureSpace ensure_space(this); |
| 2174 | emit_rex_64(src, dst); |
| 2175 | emit(0x0F); |
| 2176 | emit(0xAD); |
| 2177 | emit_modrm(src, dst); |
| 2178 | } |
| 2179 | |
| 2180 | void Assembler::xchgb(Register reg, Operand op) { |
| 2181 | EnsureSpace ensure_space(this); |
| 2182 | if (!reg.is_byte_register()) { |
| 2183 | // Register is not one of al, bl, cl, dl. Its encoding needs REX. |
| 2184 | emit_rex_32(reg, op); |
| 2185 | } else { |
| 2186 | emit_optional_rex_32(reg, op); |
| 2187 | } |
| 2188 | emit(0x86); |
| 2189 | emit_operand(reg, op); |
| 2190 | } |
| 2191 | |
| 2192 | void Assembler::xchgw(Register reg, Operand op) { |
| 2193 | EnsureSpace ensure_space(this); |
| 2194 | emit(0x66); |
| 2195 | emit_optional_rex_32(reg, op); |
| 2196 | emit(0x87); |
| 2197 | emit_operand(reg, op); |
| 2198 | } |
| 2199 | |
| 2200 | void Assembler::emit_xchg(Register dst, Register src, int size) { |
| 2201 | EnsureSpace ensure_space(this); |
| 2202 | if (src == rax || dst == rax) { // Single-byte encoding |
| 2203 | Register other = src == rax ? dst : src; |
| 2204 | emit_rex(other, size); |
| 2205 | emit(0x90 | other.low_bits()); |
| 2206 | } else if (dst.low_bits() == 4) { |
| 2207 | emit_rex(dst, src, size); |
| 2208 | emit(0x87); |
| 2209 | emit_modrm(dst, src); |
| 2210 | } else { |
| 2211 | emit_rex(src, dst, size); |
| 2212 | emit(0x87); |
| 2213 | emit_modrm(src, dst); |
| 2214 | } |
| 2215 | } |
| 2216 | |
| 2217 | void Assembler::emit_xchg(Register dst, Operand src, int size) { |
| 2218 | EnsureSpace ensure_space(this); |
| 2219 | emit_rex(dst, src, size); |
| 2220 | emit(0x87); |
| 2221 | emit_operand(dst, src); |
| 2222 | } |
| 2223 | |
| 2224 | void Assembler::store_rax(Address dst, RelocInfo::Mode mode) { |
| 2225 | EnsureSpace ensure_space(this); |
| 2226 | emit(0x48); // REX.W |
| 2227 | emit(0xA3); |
| 2228 | emit(Immediate64(dst, mode)); |
| 2229 | } |
| 2230 | |
| 2231 | void Assembler::store_rax(ExternalReference ref) { |
| 2232 | store_rax(ref.address(), RelocInfo::EXTERNAL_REFERENCE); |
| 2233 | } |
| 2234 | |
| 2235 | void Assembler::sub_sp_32(uint32_t imm) { |
| 2236 | emit_rex_64(); |
| 2237 | emit(0x81); // using a literal 32-bit immediate. |
| 2238 | emit_modrm(0x5, rsp); |
| 2239 | emitl(imm); |
| 2240 | } |
| 2241 | |
| 2242 | void Assembler::testb(Register dst, Register src) { |
| 2243 | EnsureSpace ensure_space(this); |
| 2244 | emit_test(dst, src, sizeof(int8_t)); |
| 2245 | } |
| 2246 | |
| 2247 | void Assembler::testb(Register reg, Immediate mask) { |
| 2248 | DCHECK(is_int8(mask.value_) || is_uint8(mask.value_))((void) 0); |
| 2249 | emit_test(reg, mask, sizeof(int8_t)); |
| 2250 | } |
| 2251 | |
| 2252 | void Assembler::testb(Operand op, Immediate mask) { |
| 2253 | DCHECK(is_int8(mask.value_) || is_uint8(mask.value_))((void) 0); |
| 2254 | emit_test(op, mask, sizeof(int8_t)); |
| 2255 | } |
| 2256 | |
| 2257 | void Assembler::testb(Operand op, Register reg) { |
| 2258 | emit_test(op, reg, sizeof(int8_t)); |
| 2259 | } |
| 2260 | |
| 2261 | void Assembler::testw(Register dst, Register src) { |
| 2262 | emit_test(dst, src, sizeof(uint16_t)); |
| 2263 | } |
| 2264 | |
| 2265 | void Assembler::testw(Register reg, Immediate mask) { |
| 2266 | emit_test(reg, mask, sizeof(int16_t)); |
| 2267 | } |
| 2268 | |
| 2269 | void Assembler::testw(Operand op, Immediate mask) { |
| 2270 | emit_test(op, mask, sizeof(int16_t)); |
| 2271 | } |
| 2272 | |
| 2273 | void Assembler::testw(Operand op, Register reg) { |
| 2274 | emit_test(op, reg, sizeof(int16_t)); |
| 2275 | } |
| 2276 | |
| 2277 | void Assembler::emit_test(Register dst, Register src, int size) { |
| 2278 | EnsureSpace ensure_space(this); |
| 2279 | if (src.low_bits() == 4) std::swap(dst, src); |
| 2280 | if (size == sizeof(int16_t)) { |
| 2281 | emit(0x66); |
| 2282 | size = sizeof(int32_t); |
| 2283 | } |
| 2284 | bool byte_operand = size == sizeof(int8_t); |
| 2285 | if (byte_operand) { |
| 2286 | size = sizeof(int32_t); |
| 2287 | if (!src.is_byte_register() || !dst.is_byte_register()) { |
| 2288 | emit_rex_32(dst, src); |
| 2289 | } |
| 2290 | } else { |
| 2291 | emit_rex(dst, src, size); |
| 2292 | } |
| 2293 | emit(byte_operand ? 0x84 : 0x85); |
| 2294 | emit_modrm(dst, src); |
| 2295 | } |
| 2296 | |
| 2297 | void Assembler::emit_test(Register reg, Immediate mask, int size) { |
| 2298 | if (is_uint8(mask.value_)) { |
| 2299 | size = sizeof(int8_t); |
| 2300 | } else if (is_uint16(mask.value_)) { |
| 2301 | size = sizeof(int16_t); |
| 2302 | } |
| 2303 | EnsureSpace ensure_space(this); |
| 2304 | bool half_word = size == sizeof(int16_t); |
| 2305 | if (half_word) { |
| 2306 | emit(0x66); |
| 2307 | size = sizeof(int32_t); |
| 2308 | } |
| 2309 | bool byte_operand = size == sizeof(int8_t); |
| 2310 | if (byte_operand) { |
| 2311 | size = sizeof(int32_t); |
| 2312 | if (!reg.is_byte_register()) emit_rex_32(reg); |
| 2313 | } else { |
| 2314 | emit_rex(reg, size); |
| 2315 | } |
| 2316 | if (reg == rax) { |
| 2317 | emit(byte_operand ? 0xA8 : 0xA9); |
| 2318 | } else { |
| 2319 | emit(byte_operand ? 0xF6 : 0xF7); |
| 2320 | emit_modrm(0x0, reg); |
| 2321 | } |
| 2322 | if (byte_operand) { |
| 2323 | emit(mask.value_); |
| 2324 | } else if (half_word) { |
| 2325 | emitw(mask.value_); |
| 2326 | } else { |
| 2327 | emit(mask); |
| 2328 | } |
| 2329 | } |
| 2330 | |
| 2331 | void Assembler::emit_test(Operand op, Immediate mask, int size) { |
| 2332 | if (is_uint8(mask.value_)) { |
| 2333 | size = sizeof(int8_t); |
| 2334 | } else if (is_uint16(mask.value_)) { |
| 2335 | size = sizeof(int16_t); |
| 2336 | } |
| 2337 | EnsureSpace ensure_space(this); |
| 2338 | bool half_word = size == sizeof(int16_t); |
| 2339 | if (half_word) { |
| 2340 | emit(0x66); |
| 2341 | size = sizeof(int32_t); |
| 2342 | } |
| 2343 | bool byte_operand = size == sizeof(int8_t); |
| 2344 | if (byte_operand) { |
| 2345 | size = sizeof(int32_t); |
| 2346 | } |
| 2347 | emit_rex(rax, op, size); |
| 2348 | emit(byte_operand ? 0xF6 : 0xF7); |
| 2349 | emit_operand(rax, op); // Operation code 0 |
| 2350 | if (byte_operand) { |
| 2351 | emit(mask.value_); |
| 2352 | } else if (half_word) { |
| 2353 | emitw(mask.value_); |
| 2354 | } else { |
| 2355 | emit(mask); |
| 2356 | } |
| 2357 | } |
| 2358 | |
| 2359 | void Assembler::emit_test(Operand op, Register reg, int size) { |
| 2360 | EnsureSpace ensure_space(this); |
| 2361 | if (size == sizeof(int16_t)) { |
| 2362 | emit(0x66); |
| 2363 | size = sizeof(int32_t); |
| 2364 | } |
| 2365 | bool byte_operand = size == sizeof(int8_t); |
| 2366 | if (byte_operand) { |
| 2367 | size = sizeof(int32_t); |
Value stored to 'size' is never read | |
| 2368 | if (!reg.is_byte_register()) { |
| 2369 | // Register is not one of al, bl, cl, dl. Its encoding needs REX. |
| 2370 | emit_rex_32(reg, op); |
| 2371 | } else { |
| 2372 | emit_optional_rex_32(reg, op); |
| 2373 | } |
| 2374 | } else { |
| 2375 | emit_rex(reg, op, size); |
| 2376 | } |
| 2377 | emit(byte_operand ? 0x84 : 0x85); |
| 2378 | emit_operand(reg, op); |
| 2379 | } |
| 2380 | |
| 2381 | // FPU instructions. |
| 2382 | |
| 2383 | void Assembler::fld(int i) { |
| 2384 | EnsureSpace ensure_space(this); |
| 2385 | emit_farith(0xD9, 0xC0, i); |
| 2386 | } |
| 2387 | |
| 2388 | void Assembler::fld1() { |
| 2389 | EnsureSpace ensure_space(this); |
| 2390 | emit(0xD9); |
| 2391 | emit(0xE8); |
| 2392 | } |
| 2393 | |
| 2394 | void Assembler::fldz() { |
| 2395 | EnsureSpace ensure_space(this); |
| 2396 | emit(0xD9); |
| 2397 | emit(0xEE); |
| 2398 | } |
| 2399 | |
| 2400 | void Assembler::fldpi() { |
| 2401 | EnsureSpace ensure_space(this); |
| 2402 | emit(0xD9); |
| 2403 | emit(0xEB); |
| 2404 | } |
| 2405 | |
| 2406 | void Assembler::fldln2() { |
| 2407 | EnsureSpace ensure_space(this); |
| 2408 | emit(0xD9); |
| 2409 | emit(0xED); |
| 2410 | } |
| 2411 | |
| 2412 | void Assembler::fld_s(Operand adr) { |
| 2413 | EnsureSpace ensure_space(this); |
| 2414 | emit_optional_rex_32(adr); |
| 2415 | emit(0xD9); |
| 2416 | emit_operand(0, adr); |
| 2417 | } |
| 2418 | |
| 2419 | void Assembler::fld_d(Operand adr) { |
| 2420 | EnsureSpace ensure_space(this); |
| 2421 | emit_optional_rex_32(adr); |
| 2422 | emit(0xDD); |
| 2423 | emit_operand(0, adr); |
| 2424 | } |
| 2425 | |
| 2426 | void Assembler::fstp_s(Operand adr) { |
| 2427 | EnsureSpace ensure_space(this); |
| 2428 | emit_optional_rex_32(adr); |
| 2429 | emit(0xD9); |
| 2430 | emit_operand(3, adr); |
| 2431 | } |
| 2432 | |
| 2433 | void Assembler::fstp_d(Operand adr) { |
| 2434 | EnsureSpace ensure_space(this); |
| 2435 | emit_optional_rex_32(adr); |
| 2436 | emit(0xDD); |
| 2437 | emit_operand(3, adr); |
| 2438 | } |
| 2439 | |
| 2440 | void Assembler::fstp(int index) { |
| 2441 | DCHECK(is_uint3(index))((void) 0); |
| 2442 | EnsureSpace ensure_space(this); |
| 2443 | emit_farith(0xDD, 0xD8, index); |
| 2444 | } |
| 2445 | |
| 2446 | void Assembler::fild_s(Operand adr) { |
| 2447 | EnsureSpace ensure_space(this); |
| 2448 | emit_optional_rex_32(adr); |
| 2449 | emit(0xDB); |
| 2450 | emit_operand(0, adr); |
| 2451 | } |
| 2452 | |
| 2453 | void Assembler::fild_d(Operand adr) { |
| 2454 | EnsureSpace ensure_space(this); |
| 2455 | emit_optional_rex_32(adr); |
| 2456 | emit(0xDF); |
| 2457 | emit_operand(5, adr); |
| 2458 | } |
| 2459 | |
| 2460 | void Assembler::fistp_s(Operand adr) { |
| 2461 | EnsureSpace ensure_space(this); |
| 2462 | emit_optional_rex_32(adr); |
| 2463 | emit(0xDB); |
| 2464 | emit_operand(3, adr); |
| 2465 | } |
| 2466 | |
| 2467 | void Assembler::fisttp_s(Operand adr) { |
| 2468 | DCHECK(IsEnabled(SSE3))((void) 0); |
| 2469 | EnsureSpace ensure_space(this); |
| 2470 | emit_optional_rex_32(adr); |
| 2471 | emit(0xDB); |
| 2472 | emit_operand(1, adr); |
| 2473 | } |
| 2474 | |
| 2475 | void Assembler::fisttp_d(Operand adr) { |
| 2476 | DCHECK(IsEnabled(SSE3))((void) 0); |
| 2477 | EnsureSpace ensure_space(this); |
| 2478 | emit_optional_rex_32(adr); |
| 2479 | emit(0xDD); |
| 2480 | emit_operand(1, adr); |
| 2481 | } |
| 2482 | |
| 2483 | void Assembler::fist_s(Operand adr) { |
| 2484 | EnsureSpace ensure_space(this); |
| 2485 | emit_optional_rex_32(adr); |
| 2486 | emit(0xDB); |
| 2487 | emit_operand(2, adr); |
| 2488 | } |
| 2489 | |
| 2490 | void Assembler::fistp_d(Operand adr) { |
| 2491 | EnsureSpace ensure_space(this); |
| 2492 | emit_optional_rex_32(adr); |
| 2493 | emit(0xDF); |
| 2494 | emit_operand(7, adr); |
| 2495 | } |
| 2496 | |
| 2497 | void Assembler::fabs() { |
| 2498 | EnsureSpace ensure_space(this); |
| 2499 | emit(0xD9); |
| 2500 | emit(0xE1); |
| 2501 | } |
| 2502 | |
| 2503 | void Assembler::fchs() { |
| 2504 | EnsureSpace ensure_space(this); |
| 2505 | emit(0xD9); |
| 2506 | emit(0xE0); |
| 2507 | } |
| 2508 | |
| 2509 | void Assembler::fcos() { |
| 2510 | EnsureSpace ensure_space(this); |
| 2511 | emit(0xD9); |
| 2512 | emit(0xFF); |
| 2513 | } |
| 2514 | |
| 2515 | void Assembler::fsin() { |
| 2516 | EnsureSpace ensure_space(this); |
| 2517 | emit(0xD9); |
| 2518 | emit(0xFE); |
| 2519 | } |
| 2520 | |
| 2521 | void Assembler::fptan() { |
| 2522 | EnsureSpace ensure_space(this); |
| 2523 | emit(0xD9); |
| 2524 | emit(0xF2); |
| 2525 | } |
| 2526 | |
| 2527 | void Assembler::fyl2x() { |
| 2528 | EnsureSpace ensure_space(this); |
| 2529 | emit(0xD9); |
| 2530 | emit(0xF1); |
| 2531 | } |
| 2532 | |
| 2533 | void Assembler::f2xm1() { |
| 2534 | EnsureSpace ensure_space(this); |
| 2535 | emit(0xD9); |
| 2536 | emit(0xF0); |
| 2537 | } |
| 2538 | |
| 2539 | void Assembler::fscale() { |
| 2540 | EnsureSpace ensure_space(this); |
| 2541 | emit(0xD9); |
| 2542 | emit(0xFD); |
| 2543 | } |
| 2544 | |
| 2545 | void Assembler::fninit() { |
| 2546 | EnsureSpace ensure_space(this); |
| 2547 | emit(0xDB); |
| 2548 | emit(0xE3); |
| 2549 | } |
| 2550 | |
| 2551 | void Assembler::fadd(int i) { |
| 2552 | EnsureSpace ensure_space(this); |
| 2553 | emit_farith(0xDC, 0xC0, i); |
| 2554 | } |
| 2555 | |
| 2556 | void Assembler::fsub(int i) { |
| 2557 | EnsureSpace ensure_space(this); |
| 2558 | emit_farith(0xDC, 0xE8, i); |
| 2559 | } |
| 2560 | |
| 2561 | void Assembler::fisub_s(Operand adr) { |
| 2562 | EnsureSpace ensure_space(this); |
| 2563 | emit_optional_rex_32(adr); |
| 2564 | emit(0xDA); |
| 2565 | emit_operand(4, adr); |
| 2566 | } |
| 2567 | |
| 2568 | void Assembler::fmul(int i) { |
| 2569 | EnsureSpace ensure_space(this); |
| 2570 | emit_farith(0xDC, 0xC8, i); |
| 2571 | } |
| 2572 | |
| 2573 | void Assembler::fdiv(int i) { |
| 2574 | EnsureSpace ensure_space(this); |
| 2575 | emit_farith(0xDC, 0xF8, i); |
| 2576 | } |
| 2577 | |
| 2578 | void Assembler::faddp(int i) { |
| 2579 | EnsureSpace ensure_space(this); |
| 2580 | emit_farith(0xDE, 0xC0, i); |
| 2581 | } |
| 2582 | |
| 2583 | void Assembler::fsubp(int i) { |
| 2584 | EnsureSpace ensure_space(this); |
| 2585 | emit_farith(0xDE, 0xE8, i); |
| 2586 | } |
| 2587 | |
| 2588 | void Assembler::fsubrp(int i) { |
| 2589 | EnsureSpace ensure_space(this); |
| 2590 | emit_farith(0xDE, 0xE0, i); |
| 2591 | } |
| 2592 | |
| 2593 | void Assembler::fmulp(int i) { |
| 2594 | EnsureSpace ensure_space(this); |
| 2595 | emit_farith(0xDE, 0xC8, i); |
| 2596 | } |
| 2597 | |
| 2598 | void Assembler::fdivp(int i) { |
| 2599 | EnsureSpace ensure_space(this); |
| 2600 | emit_farith(0xDE, 0xF8, i); |
| 2601 | } |
| 2602 | |
| 2603 | void Assembler::fprem() { |
| 2604 | EnsureSpace ensure_space(this); |
| 2605 | emit(0xD9); |
| 2606 | emit(0xF8); |
| 2607 | } |
| 2608 | |
| 2609 | void Assembler::fprem1() { |
| 2610 | EnsureSpace ensure_space(this); |
| 2611 | emit(0xD9); |
| 2612 | emit(0xF5); |
| 2613 | } |
| 2614 | |
| 2615 | void Assembler::fxch(int i) { |
| 2616 | EnsureSpace ensure_space(this); |
| 2617 | emit_farith(0xD9, 0xC8, i); |
| 2618 | } |
| 2619 | |
| 2620 | void Assembler::fincstp() { |
| 2621 | EnsureSpace ensure_space(this); |
| 2622 | emit(0xD9); |
| 2623 | emit(0xF7); |
| 2624 | } |
| 2625 | |
| 2626 | void Assembler::ffree(int i) { |
| 2627 | EnsureSpace ensure_space(this); |
| 2628 | emit_farith(0xDD, 0xC0, i); |
| 2629 | } |
| 2630 | |
| 2631 | void Assembler::ftst() { |
| 2632 | EnsureSpace ensure_space(this); |
| 2633 | emit(0xD9); |
| 2634 | emit(0xE4); |
| 2635 | } |
| 2636 | |
| 2637 | void Assembler::fucomp(int i) { |
| 2638 | EnsureSpace ensure_space(this); |
| 2639 | emit_farith(0xDD, 0xE8, i); |
| 2640 | } |
| 2641 | |
| 2642 | void Assembler::fucompp() { |
| 2643 | EnsureSpace ensure_space(this); |
| 2644 | emit(0xDA); |
| 2645 | emit(0xE9); |
| 2646 | } |
| 2647 | |
| 2648 | void Assembler::fucomi(int i) { |
| 2649 | EnsureSpace ensure_space(this); |
| 2650 | emit(0xDB); |
| 2651 | emit(0xE8 + i); |
| 2652 | } |
| 2653 | |
| 2654 | void Assembler::fucomip() { |
| 2655 | EnsureSpace ensure_space(this); |
| 2656 | emit(0xDF); |
| 2657 | emit(0xE9); |
| 2658 | } |
| 2659 | |
| 2660 | void Assembler::fcompp() { |
| 2661 | EnsureSpace ensure_space(this); |
| 2662 | emit(0xDE); |
| 2663 | emit(0xD9); |
| 2664 | } |
| 2665 | |
| 2666 | void Assembler::fnstsw_ax() { |
| 2667 | EnsureSpace ensure_space(this); |
| 2668 | emit(0xDF); |
| 2669 | emit(0xE0); |
| 2670 | } |
| 2671 | |
| 2672 | void Assembler::fwait() { |
| 2673 | EnsureSpace ensure_space(this); |
| 2674 | emit(0x9B); |
| 2675 | } |
| 2676 | |
| 2677 | void Assembler::frndint() { |
| 2678 | EnsureSpace ensure_space(this); |
| 2679 | emit(0xD9); |
| 2680 | emit(0xFC); |
| 2681 | } |
| 2682 | |
| 2683 | void Assembler::fnclex() { |
| 2684 | EnsureSpace ensure_space(this); |
| 2685 | emit(0xDB); |
| 2686 | emit(0xE2); |
| 2687 | } |
| 2688 | |
| 2689 | void Assembler::sahf() { |
| 2690 | // TODO(X64): Test for presence. Not all 64-bit intel CPU's have sahf |
| 2691 | // in 64-bit mode. Test CpuID. |
| 2692 | DCHECK(IsEnabled(SAHF))((void) 0); |
| 2693 | EnsureSpace ensure_space(this); |
| 2694 | emit(0x9E); |
| 2695 | } |
| 2696 | |
| 2697 | void Assembler::emit_farith(int b1, int b2, int i) { |
| 2698 | DCHECK(is_uint8(b1) && is_uint8(b2))((void) 0); // wrong opcode |
| 2699 | DCHECK(is_uint3(i))((void) 0); // illegal stack offset |
| 2700 | emit(b1); |
| 2701 | emit(b2 + i); |
| 2702 | } |
| 2703 | |
| 2704 | // SSE 2 operations. |
| 2705 | |
| 2706 | void Assembler::movd(XMMRegister dst, Register src) { |
| 2707 | DCHECK(!IsEnabled(AVX))((void) 0); |
| 2708 | EnsureSpace ensure_space(this); |
| 2709 | emit(0x66); |
| 2710 | emit_optional_rex_32(dst, src); |
| 2711 | emit(0x0F); |
| 2712 | emit(0x6E); |
| 2713 | emit_sse_operand(dst, src); |
| 2714 | } |
| 2715 | |
| 2716 | void Assembler::movd(XMMRegister dst, Operand src) { |
| 2717 | DCHECK(!IsEnabled(AVX))((void) 0); |
| 2718 | EnsureSpace ensure_space(this); |
| 2719 | emit(0x66); |
| 2720 | emit_optional_rex_32(dst, src); |
| 2721 | emit(0x0F); |
| 2722 | emit(0x6E); |
| 2723 | emit_sse_operand(dst, src); |
| 2724 | } |
| 2725 | |
| 2726 | void Assembler::movd(Register dst, XMMRegister src) { |
| 2727 | DCHECK(!IsEnabled(AVX))((void) 0); |
| 2728 | EnsureSpace ensure_space(this); |
| 2729 | emit(0x66); |
| 2730 | emit_optional_rex_32(src, dst); |
| 2731 | emit(0x0F); |
| 2732 | emit(0x7E); |
| 2733 | emit_sse_operand(src, dst); |
| 2734 | } |
| 2735 | |
| 2736 | void Assembler::movq(XMMRegister dst, Register src) { |
| 2737 | // Mixing AVX and non-AVX is expensive, catch those cases |
| 2738 | DCHECK(!IsEnabled(AVX))((void) 0); |
| 2739 | EnsureSpace ensure_space(this); |
| 2740 | emit(0x66); |
| 2741 | emit_rex_64(dst, src); |
| 2742 | emit(0x0F); |
| 2743 | emit(0x6E); |
| 2744 | emit_sse_operand(dst, src); |
| 2745 | } |
| 2746 | |
| 2747 | void Assembler::movq(XMMRegister dst, Operand src) { |
| 2748 | // Mixing AVX and non-AVX is expensive, catch those cases |
| 2749 | DCHECK(!IsEnabled(AVX))((void) 0); |
| 2750 | EnsureSpace ensure_space(this); |
| 2751 | emit(0x66); |
| 2752 | emit_rex_64(dst, src); |
| 2753 | emit(0x0F); |
| 2754 | emit(0x6E); |
| 2755 | emit_sse_operand(dst, src); |
| 2756 | } |
| 2757 | |
| 2758 | void Assembler::movq(Register dst, XMMRegister src) { |
| 2759 | // Mixing AVX and non-AVX is expensive, catch those cases |
| 2760 | DCHECK(!IsEnabled(AVX))((void) 0); |
| 2761 | EnsureSpace ensure_space(this); |
| 2762 | emit(0x66); |
| 2763 | emit_rex_64(src, dst); |
| 2764 | emit(0x0F); |
| 2765 | emit(0x7E); |
| 2766 | emit_sse_operand(src, dst); |
| 2767 | } |
| 2768 | |
| 2769 | void Assembler::movq(XMMRegister dst, XMMRegister src) { |
| 2770 | // Mixing AVX and non-AVX is expensive, catch those cases |
| 2771 | DCHECK(!IsEnabled(AVX))((void) 0); |
| 2772 | EnsureSpace ensure_space(this); |
| 2773 | if (dst.low_bits() == 4) { |
| 2774 | // Avoid unnecessary SIB byte. |
| 2775 | emit(0xF3); |
| 2776 | emit_optional_rex_32(dst, src); |
| 2777 | emit(0x0F); |
| 2778 | emit(0x7E); |
| 2779 | emit_sse_operand(dst, src); |
| 2780 | } else { |
| 2781 | emit(0x66); |
| 2782 | emit_optional_rex_32(src, dst); |
| 2783 | emit(0x0F); |
| 2784 | emit(0xD6); |
| 2785 | emit_sse_operand(src, dst); |
| 2786 | } |
| 2787 | } |
| 2788 | |
| 2789 | void Assembler::movdqa(Operand dst, XMMRegister src) { |
| 2790 | EnsureSpace ensure_space(this); |
| 2791 | emit(0x66); |
| 2792 | emit_rex_64(src, dst); |
| 2793 | emit(0x0F); |
| 2794 | emit(0x7F); |
| 2795 | emit_sse_operand(src, dst); |
| 2796 | } |
| 2797 | |
| 2798 | void Assembler::movdqa(XMMRegister dst, Operand src) { |
| 2799 | EnsureSpace ensure_space(this); |
| 2800 | emit(0x66); |
| 2801 | emit_rex_64(dst, src); |
| 2802 | emit(0x0F); |
| 2803 | emit(0x6F); |
| 2804 | emit_sse_operand(dst, src); |
| 2805 | } |
| 2806 | |
| 2807 | void Assembler::movdqa(XMMRegister dst, XMMRegister src) { |
| 2808 | EnsureSpace ensure_space(this); |
| 2809 | emit(0x66); |
| 2810 | emit_rex_64(src, dst); |
| 2811 | emit(0x0F); |
| 2812 | emit(0x7F); |
| 2813 | emit_sse_operand(src, dst); |
| 2814 | } |
| 2815 | |
| 2816 | void Assembler::movdqu(Operand dst, XMMRegister src) { |
| 2817 | EnsureSpace ensure_space(this); |
| 2818 | emit(0xF3); |
| 2819 | emit_rex_64(src, dst); |
| 2820 | emit(0x0F); |
| 2821 | emit(0x7F); |
| 2822 | emit_sse_operand(src, dst); |
| 2823 | } |
| 2824 | |
| 2825 | void Assembler::movdqu(XMMRegister dst, Operand src) { |
| 2826 | EnsureSpace ensure_space(this); |
| 2827 | emit(0xF3); |
| 2828 | emit_rex_64(dst, src); |
| 2829 | emit(0x0F); |
| 2830 | emit(0x6F); |
| 2831 | emit_sse_operand(dst, src); |
| 2832 | } |
| 2833 | |
| 2834 | void Assembler::movdqu(XMMRegister dst, XMMRegister src) { |
| 2835 | EnsureSpace ensure_space(this); |
| 2836 | emit(0xF3); |
| 2837 | emit_rex_64(dst, src); |
| 2838 | emit(0x0F); |
| 2839 | emit(0x6F); |
| 2840 | emit_sse_operand(dst, src); |
| 2841 | } |
| 2842 | |
| 2843 | void Assembler::pinsrw(XMMRegister dst, Register src, uint8_t imm8) { |
| 2844 | EnsureSpace ensure_space(this); |
| 2845 | emit(0x66); |
| 2846 | emit_optional_rex_32(dst, src); |
| 2847 | emit(0x0F); |
| 2848 | emit(0xC4); |
| 2849 | emit_sse_operand(dst, src); |
| 2850 | emit(imm8); |
| 2851 | } |
| 2852 | |
| 2853 | void Assembler::pinsrw(XMMRegister dst, Operand src, uint8_t imm8) { |
| 2854 | EnsureSpace ensure_space(this); |
| 2855 | emit(0x66); |
| 2856 | emit_optional_rex_32(dst, src); |
| 2857 | emit(0x0F); |
| 2858 | emit(0xC4); |
| 2859 | emit_sse_operand(dst, src); |
| 2860 | emit(imm8); |
| 2861 | } |
| 2862 | |
| 2863 | void Assembler::pextrq(Register dst, XMMRegister src, int8_t imm8) { |
| 2864 | DCHECK(IsEnabled(SSE4_1))((void) 0); |
| 2865 | EnsureSpace ensure_space(this); |
| 2866 | emit(0x66); |
| 2867 | emit_rex_64(src, dst); |
| 2868 | emit(0x0F); |
| 2869 | emit(0x3A); |
| 2870 | emit(0x16); |
| 2871 | emit_sse_operand(src, dst); |
| 2872 | emit(imm8); |
| 2873 | } |
| 2874 | |
| 2875 | void Assembler::pinsrq(XMMRegister dst, Register src, uint8_t imm8) { |
| 2876 | DCHECK(IsEnabled(SSE4_1))((void) 0); |
| 2877 | EnsureSpace ensure_space(this); |
| 2878 | emit(0x66); |
| 2879 | emit_rex_64(dst, src); |
| 2880 | emit(0x0F); |
| 2881 | emit(0x3A); |
| 2882 | emit(0x22); |
| 2883 | emit_sse_operand(dst, src); |
| 2884 | emit(imm8); |
| 2885 | } |
| 2886 | |
| 2887 | void Assembler::pinsrq(XMMRegister dst, Operand src, uint8_t imm8) { |
| 2888 | DCHECK(IsEnabled(SSE4_1))((void) 0); |
| 2889 | EnsureSpace ensure_space(this); |
| 2890 | emit(0x66); |
| 2891 | emit_rex_64(dst, src); |
| 2892 | emit(0x0F); |
| 2893 | emit(0x3A); |
| 2894 | emit(0x22); |
| 2895 | emit_sse_operand(dst, src); |
| 2896 | emit(imm8); |
| 2897 | } |
| 2898 | |
| 2899 | void Assembler::pinsrd(XMMRegister dst, Register src, uint8_t imm8) { |
| 2900 | sse4_instr(dst, src, 0x66, 0x0F, 0x3A, 0x22, imm8); |
| 2901 | } |
| 2902 | |
| 2903 | void Assembler::pinsrd(XMMRegister dst, Operand src, uint8_t imm8) { |
| 2904 | sse4_instr(dst, src, 0x66, 0x0F, 0x3A, 0x22); |
| 2905 | emit(imm8); |
| 2906 | } |
| 2907 | |
| 2908 | void Assembler::pinsrb(XMMRegister dst, Register src, uint8_t imm8) { |
| 2909 | sse4_instr(dst, src, 0x66, 0x0F, 0x3A, 0x20, imm8); |
| 2910 | } |
| 2911 | |
| 2912 | void Assembler::pinsrb(XMMRegister dst, Operand src, uint8_t imm8) { |
| 2913 | sse4_instr(dst, src, 0x66, 0x0F, 0x3A, 0x20); |
| 2914 | emit(imm8); |
| 2915 | } |
| 2916 | |
| 2917 | void Assembler::insertps(XMMRegister dst, XMMRegister src, byte imm8) { |
| 2918 | DCHECK(is_uint8(imm8))((void) 0); |
| 2919 | sse4_instr(dst, src, 0x66, 0x0F, 0x3A, 0x21); |
| 2920 | emit(imm8); |
| 2921 | } |
| 2922 | |
| 2923 | void Assembler::insertps(XMMRegister dst, Operand src, byte imm8) { |
| 2924 | DCHECK(is_uint8(imm8))((void) 0); |
| 2925 | sse4_instr(dst, src, 0x66, 0x0F, 0x3A, 0x21); |
| 2926 | emit(imm8); |
| 2927 | } |
| 2928 | |
| 2929 | void Assembler::movsd(Operand dst, XMMRegister src) { |
| 2930 | DCHECK(!IsEnabled(AVX))((void) 0); |
| 2931 | EnsureSpace ensure_space(this); |
| 2932 | emit(0xF2); // double |
| 2933 | emit_optional_rex_32(src, dst); |
| 2934 | emit(0x0F); |
| 2935 | emit(0x11); // store |
| 2936 | emit_sse_operand(src, dst); |
| 2937 | } |
| 2938 | |
| 2939 | void Assembler::movsd(XMMRegister dst, XMMRegister src) { |
| 2940 | DCHECK(!IsEnabled(AVX))((void) 0); |
| 2941 | EnsureSpace ensure_space(this); |
| 2942 | emit(0xF2); // double |
| 2943 | emit_optional_rex_32(dst, src); |
| 2944 | emit(0x0F); |
| 2945 | emit(0x10); // load |
| 2946 | emit_sse_operand(dst, src); |
| 2947 | } |
| 2948 | |
| 2949 | void Assembler::movsd(XMMRegister dst, Operand src) { |
| 2950 | DCHECK(!IsEnabled(AVX))((void) 0); |
| 2951 | EnsureSpace ensure_space(this); |
| 2952 | emit(0xF2); // double |
| 2953 | emit_optional_rex_32(dst, src); |
| 2954 | emit(0x0F); |
| 2955 | emit(0x10); // load |
| 2956 | emit_sse_operand(dst, src); |
| 2957 | } |
| 2958 | |
| 2959 | void Assembler::movaps(XMMRegister dst, XMMRegister src) { |
| 2960 | DCHECK(!IsEnabled(AVX))((void) 0); |
| 2961 | EnsureSpace ensure_space(this); |
| 2962 | if (src.low_bits() == 4) { |
| 2963 | // Try to avoid an unnecessary SIB byte. |
| 2964 | emit_optional_rex_32(src, dst); |
| 2965 | emit(0x0F); |
| 2966 | emit(0x29); |
| 2967 | emit_sse_operand(src, dst); |
| 2968 | } else { |
| 2969 | emit_optional_rex_32(dst, src); |
| 2970 | emit(0x0F); |
| 2971 | emit(0x28); |
| 2972 | emit_sse_operand(dst, src); |
| 2973 | } |
| 2974 | } |
| 2975 | |
| 2976 | void Assembler::movaps(XMMRegister dst, Operand src) { |
| 2977 | DCHECK(!IsEnabled(AVX))((void) 0); |
| 2978 | EnsureSpace ensure_space(this); |
| 2979 | emit_optional_rex_32(dst, src); |
| 2980 | emit(0x0F); |
| 2981 | emit(0x28); |
| 2982 | emit_sse_operand(dst, src); |
| 2983 | } |
| 2984 | |
| 2985 | void Assembler::shufps(XMMRegister dst, XMMRegister src, byte imm8) { |
| 2986 | DCHECK(is_uint8(imm8))((void) 0); |
| 2987 | EnsureSpace ensure_space(this); |
| 2988 | emit_optional_rex_32(dst, src); |
| 2989 | emit(0x0F); |
| 2990 | emit(0xC6); |
| 2991 | emit_sse_operand(dst, src); |
| 2992 | emit(imm8); |
| 2993 | } |
| 2994 | |
| 2995 | void Assembler::movapd(XMMRegister dst, XMMRegister src) { |
| 2996 | DCHECK(!IsEnabled(AVX))((void) 0); |
| 2997 | EnsureSpace ensure_space(this); |
| 2998 | if (src.low_bits() == 4) { |
| 2999 | // Try to avoid an unnecessary SIB byte. |
| 3000 | emit(0x66); |
| 3001 | emit_optional_rex_32(src, dst); |
| 3002 | emit(0x0F); |
| 3003 | emit(0x29); |
| 3004 | emit_sse_operand(src, dst); |
| 3005 | } else { |
| 3006 | emit(0x66); |
| 3007 | emit_optional_rex_32(dst, src); |
| 3008 | emit(0x0F); |
| 3009 | emit(0x28); |
| 3010 | emit_sse_operand(dst, src); |
| 3011 | } |
| 3012 | } |
| 3013 | |
| 3014 | void Assembler::movupd(XMMRegister dst, Operand src) { |
| 3015 | EnsureSpace ensure_space(this); |
| 3016 | emit(0x66); |
| 3017 | emit_optional_rex_32(dst, src); |
| 3018 | emit(0x0F); |
| 3019 | emit(0x10); |
| 3020 | emit_sse_operand(dst, src); |
| 3021 | } |
| 3022 | |
| 3023 | void Assembler::movupd(Operand dst, XMMRegister src) { |
| 3024 | EnsureSpace ensure_space(this); |
| 3025 | emit(0x66); |
| 3026 | emit_optional_rex_32(src, dst); |
| 3027 | emit(0x0F); |
| 3028 | emit(0x11); |
| 3029 | emit_sse_operand(src, dst); |
| 3030 | } |
| 3031 | |
| 3032 | void Assembler::ucomiss(XMMRegister dst, XMMRegister src) { |
| 3033 | DCHECK(!IsEnabled(AVX))((void) 0); |
| 3034 | EnsureSpace ensure_space(this); |
| 3035 | emit_optional_rex_32(dst, src); |
| 3036 | emit(0x0F); |
| 3037 | emit(0x2E); |
| 3038 | emit_sse_operand(dst, src); |
| 3039 | } |
| 3040 | |
| 3041 | void Assembler::ucomiss(XMMRegister dst, Operand src) { |
| 3042 | DCHECK(!IsEnabled(AVX))((void) 0); |
| 3043 | EnsureSpace ensure_space(this); |
| 3044 | emit_optional_rex_32(dst, src); |
| 3045 | emit(0x0F); |
| 3046 | emit(0x2E); |
| 3047 | emit_sse_operand(dst, src); |
| 3048 | } |
| 3049 | |
| 3050 | void Assembler::movss(XMMRegister dst, XMMRegister src) { |
| 3051 | DCHECK(!IsEnabled(AVX))((void) 0); |
| 3052 | EnsureSpace ensure_space(this); |
| 3053 | emit(0xF3); // single |
| 3054 | emit_optional_rex_32(dst, src); |
| 3055 | emit(0x0F); |
| 3056 | emit(0x10); // load |
| 3057 | emit_sse_operand(dst, src); |
| 3058 | } |
| 3059 | |
| 3060 | void Assembler::movss(XMMRegister dst, Operand src) { |
| 3061 | DCHECK(!IsEnabled(AVX))((void) 0); |
| 3062 | EnsureSpace ensure_space(this); |
| 3063 | emit(0xF3); // single |
| 3064 | emit_optional_rex_32(dst, src); |
| 3065 | emit(0x0F); |
| 3066 | emit(0x10); // load |
| 3067 | emit_sse_operand(dst, src); |
| 3068 | } |
| 3069 | |
| 3070 | void Assembler::movss(Operand src, XMMRegister dst) { |
| 3071 | DCHECK(!IsEnabled(AVX))((void) 0); |
| 3072 | EnsureSpace ensure_space(this); |
| 3073 | emit(0xF3); // single |
| 3074 | emit_optional_rex_32(dst, src); |
| 3075 | emit(0x0F); |
| 3076 | emit(0x11); // store |
| 3077 | emit_sse_operand(dst, src); |
| 3078 | } |
| 3079 | |
| 3080 | void Assembler::movlps(XMMRegister dst, Operand src) { |
| 3081 | DCHECK(!IsEnabled(AVX))((void) 0); |
| 3082 | EnsureSpace ensure_space(this); |
| 3083 | emit_optional_rex_32(dst, src); |
| 3084 | emit(0x0F); |
| 3085 | emit(0x12); |
| 3086 | emit_sse_operand(dst, src); |
| 3087 | } |
| 3088 | |
| 3089 | void Assembler::movlps(Operand src, XMMRegister dst) { |
| 3090 | DCHECK(!IsEnabled(AVX))((void) 0); |
| 3091 | EnsureSpace ensure_space(this); |
| 3092 | emit_optional_rex_32(dst, src); |
| 3093 | emit(0x0F); |
| 3094 | emit(0x13); |
| 3095 | emit_sse_operand(dst, src); |
| 3096 | } |
| 3097 | |
| 3098 | void Assembler::movhps(XMMRegister dst, Operand src) { |
| 3099 | DCHECK(!IsEnabled(AVX))((void) 0); |
| 3100 | EnsureSpace ensure_space(this); |
| 3101 | emit_optional_rex_32(dst, src); |
| 3102 | emit(0x0F); |
| 3103 | emit(0x16); |
| 3104 | emit_sse_operand(dst, src); |
| 3105 | } |
| 3106 | |
| 3107 | void Assembler::movhps(Operand src, XMMRegister dst) { |
| 3108 | DCHECK(!IsEnabled(AVX))((void) 0); |
| 3109 | EnsureSpace ensure_space(this); |
| 3110 | emit_optional_rex_32(dst, src); |
| 3111 | emit(0x0F); |
| 3112 | emit(0x17); |
| 3113 | emit_sse_operand(dst, src); |
| 3114 | } |
| 3115 | |
| 3116 | void Assembler::cmpps(XMMRegister dst, XMMRegister src, int8_t cmp) { |
| 3117 | EnsureSpace ensure_space(this); |
| 3118 | emit_optional_rex_32(dst, src); |
| 3119 | emit(0x0F); |
| 3120 | emit(0xC2); |
| 3121 | emit_sse_operand(dst, src); |
| 3122 | emit(cmp); |
| 3123 | } |
| 3124 | |
| 3125 | void Assembler::cmpps(XMMRegister dst, Operand src, int8_t cmp) { |
| 3126 | EnsureSpace ensure_space(this); |
| 3127 | emit_optional_rex_32(dst, src); |
| 3128 | emit(0x0F); |
| 3129 | emit(0xC2); |
| 3130 | emit_sse_operand(dst, src); |
| 3131 | emit(cmp); |
| 3132 | } |
| 3133 | |
| 3134 | void Assembler::cmppd(XMMRegister dst, XMMRegister src, int8_t cmp) { |
| 3135 | EnsureSpace ensure_space(this); |
| 3136 | emit(0x66); |
| 3137 | emit_optional_rex_32(dst, src); |
| 3138 | emit(0x0F); |
| 3139 | emit(0xC2); |
| 3140 | emit_sse_operand(dst, src); |
| 3141 | emit(cmp); |
| 3142 | } |
| 3143 | |
| 3144 | void Assembler::cmppd(XMMRegister dst, Operand src, int8_t cmp) { |
| 3145 | EnsureSpace ensure_space(this); |
| 3146 | emit(0x66); |
| 3147 | emit_optional_rex_32(dst, src); |
| 3148 | emit(0x0F); |
| 3149 | emit(0xC2); |
| 3150 | emit_sse_operand(dst, src); |
| 3151 | emit(cmp); |
| 3152 | } |
| 3153 | |
| 3154 | void Assembler::cvtdq2pd(XMMRegister dst, XMMRegister src) { |
| 3155 | sse2_instr(dst, src, 0xF3, 0x0F, 0xE6); |
| 3156 | } |
| 3157 | |
| 3158 | void Assembler::cvttss2si(Register dst, Operand src) { |
| 3159 | DCHECK(!IsEnabled(AVX))((void) 0); |
| 3160 | EnsureSpace ensure_space(this); |
| 3161 | emit(0xF3); |
| 3162 | emit_optional_rex_32(dst, src); |
| 3163 | emit(0x0F); |
| 3164 | emit(0x2C); |
| 3165 | emit_operand(dst, src); |
| 3166 | } |
| 3167 | |
| 3168 | void Assembler::cvttss2si(Register dst, XMMRegister src) { |
| 3169 | DCHECK(!IsEnabled(AVX))((void) 0); |
| 3170 | EnsureSpace ensure_space(this); |
| 3171 | emit(0xF3); |
| 3172 | emit_optional_rex_32(dst, src); |
| 3173 | emit(0x0F); |
| 3174 | emit(0x2C); |
| 3175 | emit_sse_operand(dst, src); |
| 3176 | } |
| 3177 | |
| 3178 | void Assembler::cvttsd2si(Register dst, Operand src) { |
| 3179 | DCHECK(!IsEnabled(AVX))((void) 0); |
| 3180 | EnsureSpace ensure_space(this); |
| 3181 | emit(0xF2); |
| 3182 | emit_optional_rex_32(dst, src); |
| 3183 | emit(0x0F); |
| 3184 | emit(0x2C); |
| 3185 | emit_operand(dst, src); |
| 3186 | } |
| 3187 | |
| 3188 | void Assembler::cvttsd2si(Register dst, XMMRegister src) { |
| 3189 | DCHECK(!IsEnabled(AVX))((void) 0); |
| 3190 | EnsureSpace ensure_space(this); |
| 3191 | emit(0xF2); |
| 3192 | emit_optional_rex_32(dst, src); |
| 3193 | emit(0x0F); |
| 3194 | emit(0x2C); |
| 3195 | emit_sse_operand(dst, src); |
| 3196 | } |
| 3197 | |
| 3198 | void Assembler::cvttss2siq(Register dst, XMMRegister src) { |
| 3199 | DCHECK(!IsEnabled(AVX))((void) 0); |
| 3200 | EnsureSpace ensure_space(this); |
| 3201 | emit(0xF3); |
| 3202 | emit_rex_64(dst, src); |
| 3203 | emit(0x0F); |
| 3204 | emit(0x2C); |
| 3205 | emit_sse_operand(dst, src); |
| 3206 | } |
| 3207 | |
| 3208 | void Assembler::cvttss2siq(Register dst, Operand src) { |
| 3209 | DCHECK(!IsEnabled(AVX))((void) 0); |
| 3210 | EnsureSpace ensure_space(this); |
| 3211 | emit(0xF3); |
| 3212 | emit_rex_64(dst, src); |
| 3213 | emit(0x0F); |
| 3214 | emit(0x2C); |
| 3215 | emit_sse_operand(dst, src); |
| 3216 | } |
| 3217 | |
| 3218 | void Assembler::cvttsd2siq(Register dst, XMMRegister src) { |
| 3219 | DCHECK(!IsEnabled(AVX))((void) 0); |
| 3220 | EnsureSpace ensure_space(this); |
| 3221 | emit(0xF2); |
| 3222 | emit_rex_64(dst, src); |
| 3223 | emit(0x0F); |
| 3224 | emit(0x2C); |
| 3225 | emit_sse_operand(dst, src); |
| 3226 | } |
| 3227 | |
| 3228 | void Assembler::cvttsd2siq(Register dst, Operand src) { |
| 3229 | DCHECK(!IsEnabled(AVX))((void) 0); |
| 3230 | EnsureSpace ensure_space(this); |
| 3231 | emit(0xF2); |
| 3232 | emit_rex_64(dst, src); |
| 3233 | emit(0x0F); |
| 3234 | emit(0x2C); |
| 3235 | emit_sse_operand(dst, src); |
| 3236 | } |
| 3237 | |
| 3238 | void Assembler::cvttps2dq(XMMRegister dst, Operand src) { |
| 3239 | EnsureSpace ensure_space(this); |
| 3240 | emit(0xF3); |
| 3241 | emit_rex_64(dst, src); |
| 3242 | emit(0x0F); |
| 3243 | emit(0x5B); |
| 3244 | emit_sse_operand(dst, src); |
| 3245 | } |
| 3246 | |
| 3247 | void Assembler::cvttps2dq(XMMRegister dst, XMMRegister src) { |
| 3248 | EnsureSpace ensure_space(this); |
| 3249 | emit(0xF3); |
| 3250 | emit_rex_64(dst, src); |
| 3251 | emit(0x0F); |
| 3252 | emit(0x5B); |
| 3253 | emit_sse_operand(dst, src); |
| 3254 | } |
| 3255 | |
| 3256 | void Assembler::cvtlsi2sd(XMMRegister dst, Operand src) { |
| 3257 | DCHECK(!IsEnabled(AVX))((void) 0); |
| 3258 | EnsureSpace ensure_space(this); |
| 3259 | emit(0xF2); |
| 3260 | emit_optional_rex_32(dst, src); |
| 3261 | emit(0x0F); |
| 3262 | emit(0x2A); |
| 3263 | emit_sse_operand(dst, src); |
| 3264 | } |
| 3265 | |
| 3266 | void Assembler::cvtlsi2sd(XMMRegister dst, Register src) { |
| 3267 | DCHECK(!IsEnabled(AVX))((void) 0); |
| 3268 | EnsureSpace ensure_space(this); |
| 3269 | emit(0xF2); |
| 3270 | emit_optional_rex_32(dst, src); |
| 3271 | emit(0x0F); |
| 3272 | emit(0x2A); |
| 3273 | emit_sse_operand(dst, src); |
| 3274 | } |
| 3275 | |
| 3276 | void Assembler::cvtlsi2ss(XMMRegister dst, Operand src) { |
| 3277 | DCHECK(!IsEnabled(AVX))((void) 0); |
| 3278 | EnsureSpace ensure_space(this); |
| 3279 | emit(0xF3); |
| 3280 | emit_optional_rex_32(dst, src); |
| 3281 | emit(0x0F); |
| 3282 | emit(0x2A); |
| 3283 | emit_sse_operand(dst, src); |
| 3284 | } |
| 3285 | |
| 3286 | void Assembler::cvtlsi2ss(XMMRegister dst, Register src) { |
| 3287 | EnsureSpace ensure_space(this); |
| 3288 | emit(0xF3); |
| 3289 | emit_optional_rex_32(dst, src); |
| 3290 | emit(0x0F); |
| 3291 | emit(0x2A); |
| 3292 | emit_sse_operand(dst, src); |
| 3293 | } |
| 3294 | |
| 3295 | void Assembler::cvtqsi2ss(XMMRegister dst, Operand src) { |
| 3296 | DCHECK(!IsEnabled(AVX))((void) 0); |
| 3297 | EnsureSpace ensure_space(this); |
| 3298 | emit(0xF3); |
| 3299 | emit_rex_64(dst, src); |
| 3300 | emit(0x0F); |
| 3301 | emit(0x2A); |
| 3302 | emit_sse_operand(dst, src); |
| 3303 | } |
| 3304 | |
| 3305 | void Assembler::cvtqsi2ss(XMMRegister dst, Register src) { |
| 3306 | DCHECK(!IsEnabled(AVX))((void) 0); |
| 3307 | EnsureSpace ensure_space(this); |
| 3308 | emit(0xF3); |
| 3309 | emit_rex_64(dst, src); |
| 3310 | emit(0x0F); |
| 3311 | emit(0x2A); |
| 3312 | emit_sse_operand(dst, src); |
| 3313 | } |
| 3314 | |
| 3315 | void Assembler::cvtqsi2sd(XMMRegister dst, Operand src) { |
| 3316 | DCHECK(!IsEnabled(AVX))((void) 0); |
| 3317 | EnsureSpace ensure_space(this); |
| 3318 | emit(0xF2); |
| 3319 | emit_rex_64(dst, src); |
| 3320 | emit(0x0F); |
| 3321 | emit(0x2A); |
| 3322 | emit_sse_operand(dst, src); |
| 3323 | } |
| 3324 | |
| 3325 | void Assembler::cvtqsi2sd(XMMRegister dst, Register src) { |
| 3326 | DCHECK(!IsEnabled(AVX))((void) 0); |
| 3327 | EnsureSpace ensure_space(this); |
| 3328 | emit(0xF2); |
| 3329 | emit_rex_64(dst, src); |
| 3330 | emit(0x0F); |
| 3331 | emit(0x2A); |
| 3332 | emit_sse_operand(dst, src); |
| 3333 | } |
| 3334 | |
| 3335 | void Assembler::cvtsd2si(Register dst, XMMRegister src) { |
| 3336 | DCHECK(!IsEnabled(AVX))((void) 0); |
| 3337 | EnsureSpace ensure_space(this); |
| 3338 | emit(0xF2); |
| 3339 | emit_optional_rex_32(dst, src); |
| 3340 | emit(0x0F); |
| 3341 | emit(0x2D); |
| 3342 | emit_sse_operand(dst, src); |
| 3343 | } |
| 3344 | |
| 3345 | void Assembler::cvtsd2siq(Register dst, XMMRegister src) { |
| 3346 | DCHECK(!IsEnabled(AVX))((void) 0); |
| 3347 | EnsureSpace ensure_space(this); |
| 3348 | emit(0xF2); |
| 3349 | emit_rex_64(dst, src); |
| 3350 | emit(0x0F); |
| 3351 | emit(0x2D); |
| 3352 | emit_sse_operand(dst, src); |
| 3353 | } |
| 3354 | |
| 3355 | void Assembler::haddps(XMMRegister dst, XMMRegister src) { |
| 3356 | DCHECK(IsEnabled(SSE3))((void) 0); |
| 3357 | EnsureSpace ensure_space(this); |
| 3358 | emit(0xF2); |
| 3359 | emit_optional_rex_32(dst, src); |
| 3360 | emit(0x0F); |
| 3361 | emit(0x7C); |
| 3362 | emit_sse_operand(dst, src); |
| 3363 | } |
| 3364 | |
| 3365 | void Assembler::haddps(XMMRegister dst, Operand src) { |
| 3366 | DCHECK(IsEnabled(SSE3))((void) 0); |
| 3367 | EnsureSpace ensure_space(this); |
| 3368 | emit(0xF2); |
| 3369 | emit_optional_rex_32(dst, src); |
| 3370 | emit(0x0F); |
| 3371 | emit(0x7C); |
| 3372 | emit_sse_operand(dst, src); |
| 3373 | } |
| 3374 | |
| 3375 | void Assembler::cmpeqss(XMMRegister dst, XMMRegister src) { |
| 3376 | DCHECK(!IsEnabled(AVX))((void) 0); |
| 3377 | EnsureSpace ensure_space(this); |
| 3378 | emit(0xF3); |
| 3379 | emit_optional_rex_32(dst, src); |
| 3380 | emit(0x0F); |
| 3381 | emit(0xC2); |
| 3382 | emit_sse_operand(dst, src); |
| 3383 | emit(0x00); // EQ == 0 |
| 3384 | } |
| 3385 | |
| 3386 | void Assembler::cmpeqsd(XMMRegister dst, XMMRegister src) { |
| 3387 | DCHECK(!IsEnabled(AVX))((void) 0); |
| 3388 | EnsureSpace ensure_space(this); |
| 3389 | emit(0xF2); |
| 3390 | emit_optional_rex_32(dst, src); |
| 3391 | emit(0x0F); |
| 3392 | emit(0xC2); |
| 3393 | emit_sse_operand(dst, src); |
| 3394 | emit(0x00); // EQ == 0 |
| 3395 | } |
| 3396 | |
| 3397 | void Assembler::cmpltsd(XMMRegister dst, XMMRegister src) { |
| 3398 | EnsureSpace ensure_space(this); |
| 3399 | emit(0xF2); |
| 3400 | emit_optional_rex_32(dst, src); |
| 3401 | emit(0x0F); |
| 3402 | emit(0xC2); |
| 3403 | emit_sse_operand(dst, src); |
| 3404 | emit(0x01); // LT == 1 |
| 3405 | } |
| 3406 | |
| 3407 | void Assembler::roundss(XMMRegister dst, XMMRegister src, RoundingMode mode) { |
| 3408 | DCHECK(!IsEnabled(AVX))((void) 0); |
| 3409 | sse4_instr(dst, src, 0x66, 0x0F, 0x3A, 0x0A); |
| 3410 | // Mask precision exception. |
| 3411 | emit(static_cast<byte>(mode) | 0x8); |
| 3412 | } |
| 3413 | |
| 3414 | void Assembler::roundss(XMMRegister dst, Operand src, RoundingMode mode) { |
| 3415 | DCHECK(!IsEnabled(AVX))((void) 0); |
| 3416 | sse4_instr(dst, src, 0x66, 0x0F, 0x3A, 0x0A); |
| 3417 | // Mask precision exception. |
| 3418 | emit(static_cast<byte>(mode) | 0x8); |
| 3419 | } |
| 3420 | |
| 3421 | void Assembler::roundsd(XMMRegister dst, XMMRegister src, RoundingMode mode) { |
| 3422 | DCHECK(!IsEnabled(AVX))((void) 0); |
| 3423 | sse4_instr(dst, src, 0x66, 0x0F, 0x3A, 0x0B); |
| 3424 | // Mask precision exception. |
| 3425 | emit(static_cast<byte>(mode) | 0x8); |
| 3426 | } |
| 3427 | |
| 3428 | void Assembler::roundsd(XMMRegister dst, Operand src, RoundingMode mode) { |
| 3429 | DCHECK(!IsEnabled(AVX))((void) 0); |
| 3430 | sse4_instr(dst, src, 0x66, 0x0F, 0x3A, 0x0B); |
| 3431 | // Mask precision exception. |
| 3432 | emit(static_cast<byte>(mode) | 0x8); |
| 3433 | } |
| 3434 | |
| 3435 | void Assembler::roundps(XMMRegister dst, XMMRegister src, RoundingMode mode) { |
| 3436 | DCHECK(!IsEnabled(AVX))((void) 0); |
| 3437 | sse4_instr(dst, src, 0x66, 0x0F, 0x3A, 0x08); |
| 3438 | // Mask precision exception. |
| 3439 | emit(static_cast<byte>(mode) | 0x8); |
| 3440 | } |
| 3441 | |
| 3442 | void Assembler::roundpd(XMMRegister dst, XMMRegister src, RoundingMode mode) { |
| 3443 | DCHECK(!IsEnabled(AVX))((void) 0); |
| 3444 | sse4_instr(dst, src, 0x66, 0x0F, 0x3A, 0x09); |
| 3445 | // Mask precision exception. |
| 3446 | emit(static_cast<byte>(mode) | 0x8); |
| 3447 | } |
| 3448 | |
| 3449 | void Assembler::movmskpd(Register dst, XMMRegister src) { |
| 3450 | EnsureSpace ensure_space(this); |
| 3451 | emit(0x66); |
| 3452 | emit_optional_rex_32(dst, src); |
| 3453 | emit(0x0F); |
| 3454 | emit(0x50); |
| 3455 | emit_sse_operand(dst, src); |
| 3456 | } |
| 3457 | |
| 3458 | void Assembler::movmskps(Register dst, XMMRegister src) { |
| 3459 | EnsureSpace ensure_space(this); |
| 3460 | emit_optional_rex_32(dst, src); |
| 3461 | emit(0x0F); |
| 3462 | emit(0x50); |
| 3463 | emit_sse_operand(dst, src); |
| 3464 | } |
| 3465 | |
| 3466 | void Assembler::pmovmskb(Register dst, XMMRegister src) { |
| 3467 | EnsureSpace ensure_space(this); |
| 3468 | emit(0x66); |
| 3469 | emit_optional_rex_32(dst, src); |
| 3470 | emit(0x0F); |
| 3471 | emit(0xD7); |
| 3472 | emit_sse_operand(dst, src); |
| 3473 | } |
| 3474 | |
| 3475 | // AVX instructions |
| 3476 | #define VMOV_DUP(SIMDRegister, length) \ |
| 3477 | void Assembler::vmovddup(SIMDRegister dst, SIMDRegister src) { \ |
| 3478 | DCHECK(IsEnabled(AVX))((void) 0); \ |
| 3479 | EnsureSpace ensure_space(this); \ |
| 3480 | emit_vex_prefix(dst, xmm0, src, k##length, kF2, k0F, kWIG); \ |
| 3481 | emit(0x12); \ |
| 3482 | emit_sse_operand(dst, src); \ |
| 3483 | } \ |
| 3484 | \ |
| 3485 | void Assembler::vmovddup(SIMDRegister dst, Operand src) { \ |
| 3486 | DCHECK(IsEnabled(AVX))((void) 0); \ |
| 3487 | EnsureSpace ensure_space(this); \ |
| 3488 | emit_vex_prefix(dst, xmm0, src, k##length, kF2, k0F, kWIG); \ |
| 3489 | emit(0x12); \ |
| 3490 | emit_sse_operand(dst, src); \ |
| 3491 | } \ |
| 3492 | \ |
| 3493 | void Assembler::vmovshdup(SIMDRegister dst, SIMDRegister src) { \ |
| 3494 | DCHECK(IsEnabled(AVX))((void) 0); \ |
| 3495 | EnsureSpace ensure_space(this); \ |
| 3496 | emit_vex_prefix(dst, xmm0, src, k##length, kF3, k0F, kWIG); \ |
| 3497 | emit(0x16); \ |
| 3498 | emit_sse_operand(dst, src); \ |
| 3499 | } |
| 3500 | VMOV_DUP(XMMRegister, L128) |
| 3501 | VMOV_DUP(YMMRegister, L256) |
| 3502 | #undef VMOV_DUP |
| 3503 | |
| 3504 | #define BROADCASTSS(SIMDRegister, length) \ |
| 3505 | void Assembler::vbroadcastss(SIMDRegister dst, Operand src) { \ |
| 3506 | DCHECK(IsEnabled(AVX))((void) 0); \ |
| 3507 | EnsureSpace ensure_space(this); \ |
| 3508 | emit_vex_prefix(dst, xmm0, src, k##length, k66, k0F38, kW0); \ |
| 3509 | emit(0x18); \ |
| 3510 | emit_sse_operand(dst, src); \ |
| 3511 | } \ |
| 3512 | void Assembler::vbroadcastss(SIMDRegister dst, XMMRegister src) { \ |
| 3513 | DCHECK(IsEnabled(AVX2))((void) 0); \ |
| 3514 | EnsureSpace ensure_space(this); \ |
| 3515 | emit_vex_prefix(dst, xmm0, src, k##length, k66, k0F38, kW0); \ |
| 3516 | emit(0x18); \ |
| 3517 | emit_sse_operand(dst, src); \ |
| 3518 | } |
| 3519 | BROADCASTSS(XMMRegister, L128) |
| 3520 | BROADCASTSS(YMMRegister, L256) |
| 3521 | #undef BROADCASTSS |
| 3522 | |
| 3523 | void Assembler::fma_instr(byte op, XMMRegister dst, XMMRegister src1, |
| 3524 | XMMRegister src2, VectorLength l, SIMDPrefix pp, |
| 3525 | LeadingOpcode m, VexW w) { |
| 3526 | DCHECK(IsEnabled(FMA3))((void) 0); |
| 3527 | EnsureSpace ensure_space(this); |
| 3528 | emit_vex_prefix(dst, src1, src2, l, pp, m, w); |
| 3529 | emit(op); |
| 3530 | emit_sse_operand(dst, src2); |
| 3531 | } |
| 3532 | |
| 3533 | void Assembler::fma_instr(byte op, XMMRegister dst, XMMRegister src1, |
| 3534 | Operand src2, VectorLength l, SIMDPrefix pp, |
| 3535 | LeadingOpcode m, VexW w) { |
| 3536 | DCHECK(IsEnabled(FMA3))((void) 0); |
| 3537 | EnsureSpace ensure_space(this); |
| 3538 | emit_vex_prefix(dst, src1, src2, l, pp, m, w); |
| 3539 | emit(op); |
| 3540 | emit_sse_operand(dst, src2); |
| 3541 | } |
| 3542 | |
| 3543 | void Assembler::vmovd(XMMRegister dst, Register src) { |
| 3544 | DCHECK(IsEnabled(AVX))((void) 0); |
| 3545 | EnsureSpace ensure_space(this); |
| 3546 | XMMRegister isrc = XMMRegister::from_code(src.code()); |
| 3547 | emit_vex_prefix(dst, xmm0, isrc, kL128, k66, k0F, kW0); |
| 3548 | emit(0x6E); |
| 3549 | emit_sse_operand(dst, src); |
| 3550 | } |
| 3551 | |
| 3552 | void Assembler::vmovd(XMMRegister dst, Operand src) { |
| 3553 | DCHECK(IsEnabled(AVX))((void) 0); |
| 3554 | EnsureSpace ensure_space(this); |
| 3555 | emit_vex_prefix(dst, xmm0, src, kL128, k66, k0F, kW0); |
| 3556 | emit(0x6E); |
| 3557 | emit_sse_operand(dst, src); |
| 3558 | } |
| 3559 | |
| 3560 | void Assembler::vmovd(Register dst, XMMRegister src) { |
| 3561 | DCHECK(IsEnabled(AVX))((void) 0); |
| 3562 | EnsureSpace ensure_space(this); |
| 3563 | XMMRegister idst = XMMRegister::from_code(dst.code()); |
| 3564 | emit_vex_prefix(src, xmm0, idst, kL128, k66, k0F, kW0); |
| 3565 | emit(0x7E); |
| 3566 | emit_sse_operand(src, dst); |
| 3567 | } |
| 3568 | |
| 3569 | void Assembler::vmovq(XMMRegister dst, Register src) { |
| 3570 | DCHECK(IsEnabled(AVX))((void) 0); |
| 3571 | EnsureSpace ensure_space(this); |
| 3572 | XMMRegister isrc = XMMRegister::from_code(src.code()); |
| 3573 | emit_vex_prefix(dst, xmm0, isrc, kL128, k66, k0F, kW1); |
| 3574 | emit(0x6E); |
| 3575 | emit_sse_operand(dst, src); |
| 3576 | } |
| 3577 | |
| 3578 | void Assembler::vmovq(XMMRegister dst, Operand src) { |
| 3579 | DCHECK(IsEnabled(AVX))((void) 0); |
| 3580 | EnsureSpace ensure_space(this); |
| 3581 | emit_vex_prefix(dst, xmm0, src, kL128, k66, k0F, kW1); |
| 3582 | emit(0x6E); |
| 3583 | emit_sse_operand(dst, src); |
| 3584 | } |
| 3585 | |
| 3586 | void Assembler::vmovq(Register dst, XMMRegister src) { |
| 3587 | DCHECK(IsEnabled(AVX))((void) 0); |
| 3588 | EnsureSpace ensure_space(this); |
| 3589 | XMMRegister idst = XMMRegister::from_code(dst.code()); |
| 3590 | emit_vex_prefix(src, xmm0, idst, kL128, k66, k0F, kW1); |
| 3591 | emit(0x7E); |
| 3592 | emit_sse_operand(src, dst); |
| 3593 | } |
| 3594 | |
| 3595 | void Assembler::vmovdqa(XMMRegister dst, Operand src) { |
| 3596 | DCHECK(IsEnabled(AVX))((void) 0); |
| 3597 | EnsureSpace ensure_space(this); |
| 3598 | emit_vex_prefix(dst, xmm0, src, kL128, k66, k0F, kWIG); |
| 3599 | emit(0x6F); |
| 3600 | emit_sse_operand(dst, src); |
| 3601 | } |
| 3602 | |
| 3603 | void Assembler::vmovdqa(XMMRegister dst, XMMRegister src) { |
| 3604 | DCHECK(IsEnabled(AVX))((void) 0); |
| 3605 | EnsureSpace ensure_space(this); |
| 3606 | emit_vex_prefix(dst, xmm0, src, kL128, k66, k0F, kWIG); |
| 3607 | emit(0x6F); |
| 3608 | emit_sse_operand(dst, src); |
| 3609 | } |
| 3610 | |
| 3611 | void Assembler::vmovdqa(YMMRegister dst, Operand src) { |
| 3612 | DCHECK(IsEnabled(AVX))((void) 0); |
| 3613 | EnsureSpace ensure_space(this); |
| 3614 | emit_vex_prefix(dst, ymm0, src, kL256, k66, k0F, kWIG); |
| 3615 | emit(0x6F); |
| 3616 | emit_sse_operand(dst, src); |
| 3617 | } |
| 3618 | |
| 3619 | void Assembler::vmovdqa(YMMRegister dst, YMMRegister src) { |
| 3620 | DCHECK(IsEnabled(AVX))((void) 0); |
| 3621 | EnsureSpace ensure_space(this); |
| 3622 | emit_vex_prefix(dst, ymm0, src, kL256, k66, k0F, kWIG); |
| 3623 | emit(0x6F); |
| 3624 | emit_sse_operand(dst, src); |
| 3625 | } |
| 3626 | |
| 3627 | void Assembler::vmovdqu(XMMRegister dst, Operand src) { |
| 3628 | DCHECK(IsEnabled(AVX))((void) 0); |
| 3629 | EnsureSpace ensure_space(this); |
| 3630 | emit_vex_prefix(dst, xmm0, src, kL128, kF3, k0F, kWIG); |
| 3631 | emit(0x6F); |
| 3632 | emit_sse_operand(dst, src); |
| 3633 | } |
| 3634 | |
| 3635 | void Assembler::vmovdqu(Operand dst, XMMRegister src) { |
| 3636 | DCHECK(IsEnabled(AVX))((void) 0); |
| 3637 | EnsureSpace ensure_space(this); |
| 3638 | emit_vex_prefix(src, xmm0, dst, kL128, kF3, k0F, kWIG); |
| 3639 | emit(0x7F); |
| 3640 | emit_sse_operand(src, dst); |
| 3641 | } |
| 3642 | |
| 3643 | void Assembler::vmovdqu(XMMRegister dst, XMMRegister src) { |
| 3644 | DCHECK(IsEnabled(AVX))((void) 0); |
| 3645 | EnsureSpace ensure_space(this); |
| 3646 | emit_vex_prefix(src, xmm0, dst, kL128, kF3, k0F, kWIG); |
| 3647 | emit(0x7F); |
| 3648 | emit_sse_operand(src, dst); |
| 3649 | } |
| 3650 | |
| 3651 | void Assembler::vmovdqu(YMMRegister dst, Operand src) { |
| 3652 | DCHECK(IsEnabled(AVX))((void) 0); |
| 3653 | EnsureSpace ensure_space(this); |
| 3654 | emit_vex_prefix(dst, ymm0, src, kL256, kF3, k0F, kWIG); |
| 3655 | emit(0x6F); |
| 3656 | emit_sse_operand(dst, src); |
| 3657 | } |
| 3658 | |
| 3659 | void Assembler::vmovdqu(Operand dst, YMMRegister src) { |
| 3660 | DCHECK(IsEnabled(AVX))((void) 0); |
| 3661 | EnsureSpace ensure_space(this); |
| 3662 | emit_vex_prefix(src, ymm0, dst, kL256, kF3, k0F, kWIG); |
| 3663 | emit(0x7F); |
| 3664 | emit_sse_operand(src, dst); |
| 3665 | } |
| 3666 | |
| 3667 | void Assembler::vmovdqu(YMMRegister dst, YMMRegister src) { |
| 3668 | DCHECK(IsEnabled(AVX))((void) 0); |
| 3669 | EnsureSpace ensure_space(this); |
| 3670 | emit_vex_prefix(src, ymm0, dst, kL256, kF3, k0F, kWIG); |
| 3671 | emit(0x7F); |
| 3672 | emit_sse_operand(src, dst); |
| 3673 | } |
| 3674 | |
| 3675 | void Assembler::vmovlps(XMMRegister dst, XMMRegister src1, Operand src2) { |
| 3676 | DCHECK(IsEnabled(AVX))((void) 0); |
| 3677 | EnsureSpace ensure_space(this); |
| 3678 | emit_vex_prefix(dst, src1, src2, kL128, kNoPrefix, k0F, kWIG); |
| 3679 | emit(0x12); |
| 3680 | emit_sse_operand(dst, src2); |
| 3681 | } |
| 3682 | |
| 3683 | void Assembler::vmovlps(Operand dst, XMMRegister src) { |
| 3684 | DCHECK(IsEnabled(AVX))((void) 0); |
| 3685 | EnsureSpace ensure_space(this); |
| 3686 | emit_vex_prefix(src, xmm0, dst, kL128, kNoPrefix, k0F, kWIG); |
| 3687 | emit(0x13); |
| 3688 | emit_sse_operand(src, dst); |
| 3689 | } |
| 3690 | |
| 3691 | void Assembler::vmovhps(XMMRegister dst, XMMRegister src1, Operand src2) { |
| 3692 | DCHECK(IsEnabled(AVX))((void) 0); |
| 3693 | EnsureSpace ensure_space(this); |
| 3694 | emit_vex_prefix(dst, src1, src2, kL128, kNoPrefix, k0F, kWIG); |
| 3695 | emit(0x16); |
| 3696 | emit_sse_operand(dst, src2); |
| 3697 | } |
| 3698 | |
| 3699 | void Assembler::vmovhps(Operand dst, XMMRegister src) { |
| 3700 | DCHECK(IsEnabled(AVX))((void) 0); |
| 3701 | EnsureSpace ensure_space(this); |
| 3702 | emit_vex_prefix(src, xmm0, dst, kL128, kNoPrefix, k0F, kWIG); |
| 3703 | emit(0x17); |
| 3704 | emit_sse_operand(src, dst); |
| 3705 | } |
| 3706 | |
| 3707 | void Assembler::vinstr(byte op, XMMRegister dst, XMMRegister src1, |
| 3708 | XMMRegister src2, SIMDPrefix pp, LeadingOpcode m, VexW w, |
| 3709 | CpuFeature feature) { |
| 3710 | DCHECK(IsEnabled(feature))((void) 0); |
| 3711 | DCHECK(feature == AVX || feature == AVX2)((void) 0); |
| 3712 | EnsureSpace ensure_space(this); |
| 3713 | emit_vex_prefix(dst, src1, src2, kLIG, pp, m, w); |
| 3714 | emit(op); |
| 3715 | emit_sse_operand(dst, src2); |
| 3716 | } |
| 3717 | |
| 3718 | void Assembler::vinstr(byte op, XMMRegister dst, XMMRegister src1, Operand src2, |
| 3719 | SIMDPrefix pp, LeadingOpcode m, VexW w, |
| 3720 | CpuFeature feature) { |
| 3721 | DCHECK(IsEnabled(feature))((void) 0); |
| 3722 | DCHECK(feature == AVX || feature == AVX2)((void) 0); |
| 3723 | EnsureSpace ensure_space(this); |
| 3724 | emit_vex_prefix(dst, src1, src2, kLIG, pp, m, w); |
| 3725 | emit(op); |
| 3726 | emit_sse_operand(dst, src2); |
| 3727 | } |
| 3728 | |
| 3729 | template <typename Reg1, typename Reg2, typename Op> |
| 3730 | void Assembler::vinstr(byte op, Reg1 dst, Reg2 src1, Op src2, SIMDPrefix pp, |
| 3731 | LeadingOpcode m, VexW w, CpuFeature feature) { |
| 3732 | DCHECK(IsEnabled(feature))((void) 0); |
| 3733 | DCHECK(feature == AVX || feature == AVX2)((void) 0); |
| 3734 | EnsureSpace ensure_space(this); |
| 3735 | emit_vex_prefix(dst, src1, src2, kL256, pp, m, w); |
| 3736 | emit(op); |
| 3737 | emit_sse_operand(dst, src2); |
| 3738 | } |
| 3739 | |
| 3740 | template EXPORT_TEMPLATE_DEFINE(V8_EXPORT_PRIVATE) void Assembler::vinstr( |
| 3741 | byte op, YMMRegister dst, YMMRegister src1, YMMRegister src2, SIMDPrefix pp, |
| 3742 | LeadingOpcode m, VexW w, CpuFeature feature); |
| 3743 | template EXPORT_TEMPLATE_DEFINE(V8_EXPORT_PRIVATE) void Assembler::vinstr( |
| 3744 | byte op, YMMRegister dst, XMMRegister src1, XMMRegister src2, SIMDPrefix pp, |
| 3745 | LeadingOpcode m, VexW w, CpuFeature feature); |
| 3746 | template EXPORT_TEMPLATE_DEFINE(V8_EXPORT_PRIVATE) void Assembler::vinstr( |
| 3747 | byte op, YMMRegister dst, YMMRegister src1, Operand src2, SIMDPrefix pp, |
| 3748 | LeadingOpcode m, VexW w, CpuFeature feature); |
| 3749 | template EXPORT_TEMPLATE_DEFINE(V8_EXPORT_PRIVATE) void Assembler::vinstr( |
| 3750 | byte op, YMMRegister dst, YMMRegister src1, XMMRegister src2, SIMDPrefix pp, |
| 3751 | LeadingOpcode m, VexW w, CpuFeature feature); |
| 3752 | template EXPORT_TEMPLATE_DEFINE(V8_EXPORT_PRIVATE) void Assembler::vinstr( |
| 3753 | byte op, YMMRegister dst, XMMRegister src1, Operand src2, SIMDPrefix pp, |
| 3754 | LeadingOpcode m, VexW w, CpuFeature feature); |
| 3755 | |
| 3756 | void Assembler::vps(byte op, XMMRegister dst, XMMRegister src1, |
| 3757 | XMMRegister src2) { |
| 3758 | DCHECK(IsEnabled(AVX))((void) 0); |
| 3759 | EnsureSpace ensure_space(this); |
| 3760 | emit_vex_prefix(dst, src1, src2, kL128, kNoPrefix, k0F, kWIG); |
| 3761 | emit(op); |
| 3762 | emit_sse_operand(dst, src2); |
| 3763 | } |
| 3764 | |
| 3765 | void Assembler::vps(byte op, YMMRegister dst, YMMRegister src1, |
| 3766 | YMMRegister src2) { |
| 3767 | DCHECK(IsEnabled(AVX))((void) 0); |
| 3768 | EnsureSpace ensure_space(this); |
| 3769 | emit_vex_prefix(dst, src1, src2, kL256, kNoPrefix, k0F, kWIG); |
| 3770 | emit(op); |
| 3771 | emit_sse_operand(dst, src2); |
| 3772 | } |
| 3773 | |
| 3774 | void Assembler::vps(byte op, XMMRegister dst, XMMRegister src1, Operand src2) { |
| 3775 | DCHECK(IsEnabled(AVX))((void) 0); |
| 3776 | EnsureSpace ensure_space(this); |
| 3777 | emit_vex_prefix(dst, src1, src2, kL128, kNoPrefix, k0F, kWIG); |
| 3778 | emit(op); |
| 3779 | emit_sse_operand(dst, src2); |
| 3780 | } |
| 3781 | |
| 3782 | void Assembler::vps(byte op, YMMRegister dst, YMMRegister src1, Operand src2) { |
| 3783 | DCHECK(IsEnabled(AVX))((void) 0); |
| 3784 | EnsureSpace ensure_space(this); |
| 3785 | emit_vex_prefix(dst, src1, src2, kL256, kNoPrefix, k0F, kWIG); |
| 3786 | emit(op); |
| 3787 | emit_sse_operand(dst, src2); |
| 3788 | } |
| 3789 | |
| 3790 | void Assembler::vps(byte op, XMMRegister dst, XMMRegister src1, |
| 3791 | XMMRegister src2, byte imm8) { |
| 3792 | DCHECK(IsEnabled(AVX))((void) 0); |
| 3793 | EnsureSpace ensure_space(this); |
| 3794 | emit_vex_prefix(dst, src1, src2, kL128, kNoPrefix, k0F, kWIG); |
| 3795 | emit(op); |
| 3796 | emit_sse_operand(dst, src2); |
| 3797 | emit(imm8); |
| 3798 | } |
| 3799 | |
| 3800 | void Assembler::vps(byte op, YMMRegister dst, YMMRegister src1, |
| 3801 | YMMRegister src2, byte imm8) { |
| 3802 | DCHECK(IsEnabled(AVX))((void) 0); |
| 3803 | EnsureSpace ensure_space(this); |
| 3804 | emit_vex_prefix(dst, src1, src2, kL256, kNoPrefix, k0F, kWIG); |
| 3805 | emit(op); |
| 3806 | emit_sse_operand(dst, src2); |
| 3807 | emit(imm8); |
| 3808 | } |
| 3809 | |
| 3810 | #define VPD(SIMDRegister, length) \ |
| 3811 | void Assembler::vpd(byte op, SIMDRegister dst, SIMDRegister src1, \ |
| 3812 | SIMDRegister src2) { \ |
| 3813 | DCHECK(IsEnabled(AVX))((void) 0); \ |
| 3814 | EnsureSpace ensure_space(this); \ |
| 3815 | emit_vex_prefix(dst, src1, src2, k##length, k66, k0F, kWIG); \ |
| 3816 | emit(op); \ |
| 3817 | emit_sse_operand(dst, src2); \ |
| 3818 | } \ |
| 3819 | \ |
| 3820 | void Assembler::vpd(byte op, SIMDRegister dst, SIMDRegister src1, \ |
| 3821 | Operand src2) { \ |
| 3822 | DCHECK(IsEnabled(AVX))((void) 0); \ |
| 3823 | EnsureSpace ensure_space(this); \ |
| 3824 | emit_vex_prefix(dst, src1, src2, k##length, k66, k0F, kWIG); \ |
| 3825 | emit(op); \ |
| 3826 | emit_sse_operand(dst, src2); \ |
| 3827 | } |
| 3828 | VPD(XMMRegister, L128) |
| 3829 | VPD(YMMRegister, L256) |
| 3830 | #undef VPD |
| 3831 | |
| 3832 | void Assembler::vucomiss(XMMRegister dst, XMMRegister src) { |
| 3833 | DCHECK(IsEnabled(AVX))((void) 0); |
| 3834 | EnsureSpace ensure_space(this); |
| 3835 | emit_vex_prefix(dst, xmm0, src, kLIG, kNoPrefix, k0F, kWIG); |
| 3836 | emit(0x2E); |
| 3837 | emit_sse_operand(dst, src); |
| 3838 | } |
| 3839 | |
| 3840 | void Assembler::vucomiss(XMMRegister dst, Operand src) { |
| 3841 | DCHECK(IsEnabled(AVX))((void) 0); |
| 3842 | EnsureSpace ensure_space(this); |
| 3843 | emit_vex_prefix(dst, xmm0, src, kLIG, kNoPrefix, k0F, kWIG); |
| 3844 | emit(0x2E); |
| 3845 | emit_sse_operand(dst, src); |
| 3846 | } |
| 3847 | |
| 3848 | void Assembler::vpmovmskb(Register dst, XMMRegister src) { |
| 3849 | XMMRegister idst = XMMRegister::from_code(dst.code()); |
| 3850 | DCHECK(IsEnabled(AVX))((void) 0); |
| 3851 | EnsureSpace ensure_space(this); |
| 3852 | emit_vex_prefix(idst, xmm0, src, kL128, k66, k0F, kWIG); |
| 3853 | emit(0xD7); |
| 3854 | emit_sse_operand(idst, src); |
| 3855 | } |
| 3856 | |
| 3857 | void Assembler::vss(byte op, XMMRegister dst, XMMRegister src1, |
| 3858 | XMMRegister src2) { |
| 3859 | DCHECK(IsEnabled(AVX))((void) 0); |
| 3860 | EnsureSpace ensure_space(this); |
| 3861 | emit_vex_prefix(dst, src1, src2, kLIG, kF3, k0F, kWIG); |
| 3862 | emit(op); |
| 3863 | emit_sse_operand(dst, src2); |
| 3864 | } |
| 3865 | |
| 3866 | void Assembler::vss(byte op, XMMRegister dst, XMMRegister src1, Operand src2) { |
| 3867 | DCHECK(IsEnabled(AVX))((void) 0); |
| 3868 | EnsureSpace ensure_space(this); |
| 3869 | emit_vex_prefix(dst, src1, src2, kLIG, kF3, k0F, kWIG); |
| 3870 | emit(op); |
| 3871 | emit_sse_operand(dst, src2); |
| 3872 | } |
| 3873 | |
| 3874 | void Assembler::bmi1q(byte op, Register reg, Register vreg, Register rm) { |
| 3875 | DCHECK(IsEnabled(BMI1))((void) 0); |
| 3876 | EnsureSpace ensure_space(this); |
| 3877 | emit_vex_prefix(reg, vreg, rm, kLZ, kNoPrefix, k0F38, kW1); |
| 3878 | emit(op); |
| 3879 | emit_modrm(reg, rm); |
| 3880 | } |
| 3881 | |
| 3882 | void Assembler::bmi1q(byte op, Register reg, Register vreg, Operand rm) { |
| 3883 | DCHECK(IsEnabled(BMI1))((void) 0); |
| 3884 | EnsureSpace ensure_space(this); |
| 3885 | emit_vex_prefix(reg, vreg, rm, kLZ, kNoPrefix, k0F38, kW1); |
| 3886 | emit(op); |
| 3887 | emit_operand(reg, rm); |
| 3888 | } |
| 3889 | |
| 3890 | void Assembler::bmi1l(byte op, Register reg, Register vreg, Register rm) { |
| 3891 | DCHECK(IsEnabled(BMI1))((void) 0); |
| 3892 | EnsureSpace ensure_space(this); |
| 3893 | emit_vex_prefix(reg, vreg, rm, kLZ, kNoPrefix, k0F38, kW0); |
| 3894 | emit(op); |
| 3895 | emit_modrm(reg, rm); |
| 3896 | } |
| 3897 | |
| 3898 | void Assembler::bmi1l(byte op, Register reg, Register vreg, Operand rm) { |
| 3899 | DCHECK(IsEnabled(BMI1))((void) 0); |
| 3900 | EnsureSpace ensure_space(this); |
| 3901 | emit_vex_prefix(reg, vreg, rm, kLZ, kNoPrefix, k0F38, kW0); |
| 3902 | emit(op); |
| 3903 | emit_operand(reg, rm); |
| 3904 | } |
| 3905 | |
| 3906 | void Assembler::tzcntq(Register dst, Register src) { |
| 3907 | DCHECK(IsEnabled(BMI1))((void) 0); |
| 3908 | EnsureSpace ensure_space(this); |
| 3909 | emit(0xF3); |
| 3910 | emit_rex_64(dst, src); |
| 3911 | emit(0x0F); |
| 3912 | emit(0xBC); |
| 3913 | emit_modrm(dst, src); |
| 3914 | } |
| 3915 | |
| 3916 | void Assembler::tzcntq(Register dst, Operand src) { |
| 3917 | DCHECK(IsEnabled(BMI1))((void) 0); |
| 3918 | EnsureSpace ensure_space(this); |
| 3919 | emit(0xF3); |
| 3920 | emit_rex_64(dst, src); |
| 3921 | emit(0x0F); |
| 3922 | emit(0xBC); |
| 3923 | emit_operand(dst, src); |
| 3924 | } |
| 3925 | |
| 3926 | void Assembler::tzcntl(Register dst, Register src) { |
| 3927 | DCHECK(IsEnabled(BMI1))((void) 0); |
| 3928 | EnsureSpace ensure_space(this); |
| 3929 | emit(0xF3); |
| 3930 | emit_optional_rex_32(dst, src); |
| 3931 | emit(0x0F); |
| 3932 | emit(0xBC); |
| 3933 | emit_modrm(dst, src); |
| 3934 | } |
| 3935 | |
| 3936 | void Assembler::tzcntl(Register dst, Operand src) { |
| 3937 | DCHECK(IsEnabled(BMI1))((void) 0); |
| 3938 | EnsureSpace ensure_space(this); |
| 3939 | emit(0xF3); |
| 3940 | emit_optional_rex_32(dst, src); |
| 3941 | emit(0x0F); |
| 3942 | emit(0xBC); |
| 3943 | emit_operand(dst, src); |
| 3944 | } |
| 3945 | |
| 3946 | void Assembler::lzcntq(Register dst, Register src) { |
| 3947 | DCHECK(IsEnabled(LZCNT))((void) 0); |
| 3948 | EnsureSpace ensure_space(this); |
| 3949 | emit(0xF3); |
| 3950 | emit_rex_64(dst, src); |
| 3951 | emit(0x0F); |
| 3952 | emit(0xBD); |
| 3953 | emit_modrm(dst, src); |
| 3954 | } |
| 3955 | |
| 3956 | void Assembler::lzcntq(Register dst, Operand src) { |
| 3957 | DCHECK(IsEnabled(LZCNT))((void) 0); |
| 3958 | EnsureSpace ensure_space(this); |
| 3959 | emit(0xF3); |
| 3960 | emit_rex_64(dst, src); |
| 3961 | emit(0x0F); |
| 3962 | emit(0xBD); |
| 3963 | emit_operand(dst, src); |
| 3964 | } |
| 3965 | |
| 3966 | void Assembler::lzcntl(Register dst, Register src) { |
| 3967 | DCHECK(IsEnabled(LZCNT))((void) 0); |
| 3968 | EnsureSpace ensure_space(this); |
| 3969 | emit(0xF3); |
| 3970 | emit_optional_rex_32(dst, src); |
| 3971 | emit(0x0F); |
| 3972 | emit(0xBD); |
| 3973 | emit_modrm(dst, src); |
| 3974 | } |
| 3975 | |
| 3976 | void Assembler::lzcntl(Register dst, Operand src) { |
| 3977 | DCHECK(IsEnabled(LZCNT))((void) 0); |
| 3978 | EnsureSpace ensure_space(this); |
| 3979 | emit(0xF3); |
| 3980 | emit_optional_rex_32(dst, src); |
| 3981 | emit(0x0F); |
| 3982 | emit(0xBD); |
| 3983 | emit_operand(dst, src); |
| 3984 | } |
| 3985 | |
| 3986 | void Assembler::popcntq(Register dst, Register src) { |
| 3987 | DCHECK(IsEnabled(POPCNT))((void) 0); |
| 3988 | EnsureSpace ensure_space(this); |
| 3989 | emit(0xF3); |
| 3990 | emit_rex_64(dst, src); |
| 3991 | emit(0x0F); |
| 3992 | emit(0xB8); |
| 3993 | emit_modrm(dst, src); |
| 3994 | } |
| 3995 | |
| 3996 | void Assembler::popcntq(Register dst, Operand src) { |
| 3997 | DCHECK(IsEnabled(POPCNT))((void) 0); |
| 3998 | EnsureSpace ensure_space(this); |
| 3999 | emit(0xF3); |
| 4000 | emit_rex_64(dst, src); |
| 4001 | emit(0x0F); |
| 4002 | emit(0xB8); |
| 4003 | emit_operand(dst, src); |
| 4004 | } |
| 4005 | |
| 4006 | void Assembler::popcntl(Register dst, Register src) { |
| 4007 | DCHECK(IsEnabled(POPCNT))((void) 0); |
| 4008 | EnsureSpace ensure_space(this); |
| 4009 | emit(0xF3); |
| 4010 | emit_optional_rex_32(dst, src); |
| 4011 | emit(0x0F); |
| 4012 | emit(0xB8); |
| 4013 | emit_modrm(dst, src); |
| 4014 | } |
| 4015 | |
| 4016 | void Assembler::popcntl(Register dst, Operand src) { |
| 4017 | DCHECK(IsEnabled(POPCNT))((void) 0); |
| 4018 | EnsureSpace ensure_space(this); |
| 4019 | emit(0xF3); |
| 4020 | emit_optional_rex_32(dst, src); |
| 4021 | emit(0x0F); |
| 4022 | emit(0xB8); |
| 4023 | emit_operand(dst, src); |
| 4024 | } |
| 4025 | |
| 4026 | void Assembler::bmi2q(SIMDPrefix pp, byte op, Register reg, Register vreg, |
| 4027 | Register rm) { |
| 4028 | DCHECK(IsEnabled(BMI2))((void) 0); |
| 4029 | EnsureSpace ensure_space(this); |
| 4030 | emit_vex_prefix(reg, vreg, rm, kLZ, pp, k0F38, kW1); |
| 4031 | emit(op); |
| 4032 | emit_modrm(reg, rm); |
| 4033 | } |
| 4034 | |
| 4035 | void Assembler::bmi2q(SIMDPrefix pp, byte op, Register reg, Register vreg, |
| 4036 | Operand rm) { |
| 4037 | DCHECK(IsEnabled(BMI2))((void) 0); |
| 4038 | EnsureSpace ensure_space(this); |
| 4039 | emit_vex_prefix(reg, vreg, rm, kLZ, pp, k0F38, kW1); |
| 4040 | emit(op); |
| 4041 | emit_operand(reg, rm); |
| 4042 | } |
| 4043 | |
| 4044 | void Assembler::bmi2l(SIMDPrefix pp, byte op, Register reg, Register vreg, |
| 4045 | Register rm) { |
| 4046 | DCHECK(IsEnabled(BMI2))((void) 0); |
| 4047 | EnsureSpace ensure_space(this); |
| 4048 | emit_vex_prefix(reg, vreg, rm, kLZ, pp, k0F38, kW0); |
| 4049 | emit(op); |
| 4050 | emit_modrm(reg, rm); |
| 4051 | } |
| 4052 | |
| 4053 | void Assembler::bmi2l(SIMDPrefix pp, byte op, Register reg, Register vreg, |
| 4054 | Operand rm) { |
| 4055 | DCHECK(IsEnabled(BMI2))((void) 0); |
| 4056 | EnsureSpace ensure_space(this); |
| 4057 | emit_vex_prefix(reg, vreg, rm, kLZ, pp, k0F38, kW0); |
| 4058 | emit(op); |
| 4059 | emit_operand(reg, rm); |
| 4060 | } |
| 4061 | |
| 4062 | void Assembler::rorxq(Register dst, Register src, byte imm8) { |
| 4063 | DCHECK(IsEnabled(BMI2))((void) 0); |
| 4064 | DCHECK(is_uint8(imm8))((void) 0); |
| 4065 | Register vreg = Register::from_code(0); // VEX.vvvv unused |
| 4066 | EnsureSpace ensure_space(this); |
| 4067 | emit_vex_prefix(dst, vreg, src, kLZ, kF2, k0F3A, kW1); |
| 4068 | emit(0xF0); |
| 4069 | emit_modrm(dst, src); |
| 4070 | emit(imm8); |
| 4071 | } |
| 4072 | |
| 4073 | void Assembler::rorxq(Register dst, Operand src, byte imm8) { |
| 4074 | DCHECK(IsEnabled(BMI2))((void) 0); |
| 4075 | DCHECK(is_uint8(imm8))((void) 0); |
| 4076 | Register vreg = Register::from_code(0); // VEX.vvvv unused |
| 4077 | EnsureSpace ensure_space(this); |
| 4078 | emit_vex_prefix(dst, vreg, src, kLZ, kF2, k0F3A, kW1); |
| 4079 | emit(0xF0); |
| 4080 | emit_operand(dst, src); |
| 4081 | emit(imm8); |
| 4082 | } |
| 4083 | |
| 4084 | void Assembler::rorxl(Register dst, Register src, byte imm8) { |
| 4085 | DCHECK(IsEnabled(BMI2))((void) 0); |
| 4086 | DCHECK(is_uint8(imm8))((void) 0); |
| 4087 | Register vreg = Register::from_code(0); // VEX.vvvv unused |
| 4088 | EnsureSpace ensure_space(this); |
| 4089 | emit_vex_prefix(dst, vreg, src, kLZ, kF2, k0F3A, kW0); |
| 4090 | emit(0xF0); |
| 4091 | emit_modrm(dst, src); |
| 4092 | emit(imm8); |
| 4093 | } |
| 4094 | |
| 4095 | void Assembler::rorxl(Register dst, Operand src, byte imm8) { |
| 4096 | DCHECK(IsEnabled(BMI2))((void) 0); |
| 4097 | DCHECK(is_uint8(imm8))((void) 0); |
| 4098 | Register vreg = Register::from_code(0); // VEX.vvvv unused |
| 4099 | EnsureSpace ensure_space(this); |
| 4100 | emit_vex_prefix(dst, vreg, src, kLZ, kF2, k0F3A, kW0); |
| 4101 | emit(0xF0); |
| 4102 | emit_operand(dst, src); |
| 4103 | emit(imm8); |
| 4104 | } |
| 4105 | |
| 4106 | void Assembler::pause() { |
| 4107 | emit(0xF3); |
| 4108 | emit(0x90); |
| 4109 | } |
| 4110 | |
| 4111 | void Assembler::movups(XMMRegister dst, XMMRegister src) { |
| 4112 | EnsureSpace ensure_space(this); |
| 4113 | if (src.low_bits() == 4) { |
| 4114 | // Try to avoid an unnecessary SIB byte. |
| 4115 | emit_optional_rex_32(src, dst); |
| 4116 | emit(0x0F); |
| 4117 | emit(0x11); |
| 4118 | emit_sse_operand(src, dst); |
| 4119 | } else { |
| 4120 | emit_optional_rex_32(dst, src); |
| 4121 | emit(0x0F); |
| 4122 | emit(0x10); |
| 4123 | emit_sse_operand(dst, src); |
| 4124 | } |
| 4125 | } |
| 4126 | |
| 4127 | void Assembler::movups(XMMRegister dst, Operand src) { |
| 4128 | EnsureSpace ensure_space(this); |
| 4129 | emit_optional_rex_32(dst, src); |
| 4130 | emit(0x0F); |
| 4131 | emit(0x10); |
| 4132 | emit_sse_operand(dst, src); |
| 4133 | } |
| 4134 | |
| 4135 | void Assembler::movups(Operand dst, XMMRegister src) { |
| 4136 | EnsureSpace ensure_space(this); |
| 4137 | emit_optional_rex_32(src, dst); |
| 4138 | emit(0x0F); |
| 4139 | emit(0x11); |
| 4140 | emit_sse_operand(src, dst); |
| 4141 | } |
| 4142 | |
| 4143 | void Assembler::sse_instr(XMMRegister dst, XMMRegister src, byte escape, |
| 4144 | byte opcode) { |
| 4145 | EnsureSpace ensure_space(this); |
| 4146 | emit_optional_rex_32(dst, src); |
| 4147 | emit(escape); |
| 4148 | emit(opcode); |
| 4149 | emit_sse_operand(dst, src); |
| 4150 | } |
| 4151 | |
| 4152 | void Assembler::sse_instr(XMMRegister dst, Operand src, byte escape, |
| 4153 | byte opcode) { |
| 4154 | EnsureSpace ensure_space(this); |
| 4155 | emit_optional_rex_32(dst, src); |
| 4156 | emit(escape); |
| 4157 | emit(opcode); |
| 4158 | emit_sse_operand(dst, src); |
| 4159 | } |
| 4160 | |
| 4161 | void Assembler::sse2_instr(XMMRegister dst, XMMRegister src, byte prefix, |
| 4162 | byte escape, byte opcode) { |
| 4163 | EnsureSpace ensure_space(this); |
| 4164 | emit(prefix); |
| 4165 | emit_optional_rex_32(dst, src); |
| 4166 | emit(escape); |
| 4167 | emit(opcode); |
| 4168 | emit_sse_operand(dst, src); |
| 4169 | } |
| 4170 | |
| 4171 | void Assembler::sse2_instr(XMMRegister dst, Operand src, byte prefix, |
| 4172 | byte escape, byte opcode) { |
| 4173 | EnsureSpace ensure_space(this); |
| 4174 | emit(prefix); |
| 4175 | emit_optional_rex_32(dst, src); |
| 4176 | emit(escape); |
| 4177 | emit(opcode); |
| 4178 | emit_sse_operand(dst, src); |
| 4179 | } |
| 4180 | |
| 4181 | void Assembler::ssse3_instr(XMMRegister dst, XMMRegister src, byte prefix, |
| 4182 | byte escape1, byte escape2, byte opcode) { |
| 4183 | DCHECK(IsEnabled(SSSE3))((void) 0); |
| 4184 | EnsureSpace ensure_space(this); |
| 4185 | emit(prefix); |
| 4186 | emit_optional_rex_32(dst, src); |
| 4187 | emit(escape1); |
| 4188 | emit(escape2); |
| 4189 | emit(opcode); |
| 4190 | emit_sse_operand(dst, src); |
| 4191 | } |
| 4192 | |
| 4193 | void Assembler::ssse3_instr(XMMRegister dst, Operand src, byte prefix, |
| 4194 | byte escape1, byte escape2, byte opcode) { |
| 4195 | DCHECK(IsEnabled(SSSE3))((void) 0); |
| 4196 | EnsureSpace ensure_space(this); |
| 4197 | emit(prefix); |
| 4198 | emit_optional_rex_32(dst, src); |
| 4199 | emit(escape1); |
| 4200 | emit(escape2); |
| 4201 | emit(opcode); |
| 4202 | emit_sse_operand(dst, src); |
| 4203 | } |
| 4204 | |
| 4205 | void Assembler::sse4_instr(XMMRegister dst, Register src, byte prefix, |
| 4206 | byte escape1, byte escape2, byte opcode, |
| 4207 | int8_t imm8) { |
| 4208 | DCHECK(is_uint8(imm8))((void) 0); |
| 4209 | DCHECK(IsEnabled(SSE4_1))((void) 0); |
| 4210 | EnsureSpace ensure_space(this); |
| 4211 | emit(prefix); |
| 4212 | emit_optional_rex_32(dst, src); |
| 4213 | emit(escape1); |
| 4214 | emit(escape2); |
| 4215 | emit(opcode); |
| 4216 | emit_sse_operand(dst, src); |
| 4217 | emit(imm8); |
| 4218 | } |
| 4219 | |
| 4220 | void Assembler::sse4_instr(XMMRegister dst, XMMRegister src, byte prefix, |
| 4221 | byte escape1, byte escape2, byte opcode) { |
| 4222 | DCHECK(IsEnabled(SSE4_1))((void) 0); |
| 4223 | EnsureSpace ensure_space(this); |
| 4224 | emit(prefix); |
| 4225 | emit_optional_rex_32(dst, src); |
| 4226 | emit(escape1); |
| 4227 | emit(escape2); |
| 4228 | emit(opcode); |
| 4229 | emit_sse_operand(dst, src); |
| 4230 | } |
| 4231 | |
| 4232 | void Assembler::sse4_instr(XMMRegister dst, Operand src, byte prefix, |
| 4233 | byte escape1, byte escape2, byte opcode) { |
| 4234 | DCHECK(IsEnabled(SSE4_1))((void) 0); |
| 4235 | EnsureSpace ensure_space(this); |
| 4236 | emit(prefix); |
| 4237 | emit_optional_rex_32(dst, src); |
| 4238 | emit(escape1); |
| 4239 | emit(escape2); |
| 4240 | emit(opcode); |
| 4241 | emit_sse_operand(dst, src); |
| 4242 | } |
| 4243 | |
| 4244 | void Assembler::sse4_instr(Register dst, XMMRegister src, byte prefix, |
| 4245 | byte escape1, byte escape2, byte opcode, |
| 4246 | int8_t imm8) { |
| 4247 | DCHECK(is_uint8(imm8))((void) 0); |
| 4248 | DCHECK(IsEnabled(SSE4_1))((void) 0); |
| 4249 | EnsureSpace ensure_space(this); |
| 4250 | emit(prefix); |
| 4251 | emit_optional_rex_32(src, dst); |
| 4252 | emit(escape1); |
| 4253 | emit(escape2); |
| 4254 | emit(opcode); |
| 4255 | emit_sse_operand(src, dst); |
| 4256 | emit(imm8); |
| 4257 | } |
| 4258 | |
| 4259 | void Assembler::sse4_instr(Operand dst, XMMRegister src, byte prefix, |
| 4260 | byte escape1, byte escape2, byte opcode, |
| 4261 | int8_t imm8) { |
| 4262 | DCHECK(is_uint8(imm8))((void) 0); |
| 4263 | DCHECK(IsEnabled(SSE4_1))((void) 0); |
| 4264 | EnsureSpace ensure_space(this); |
| 4265 | emit(prefix); |
| 4266 | emit_optional_rex_32(src, dst); |
| 4267 | emit(escape1); |
| 4268 | emit(escape2); |
| 4269 | emit(opcode); |
| 4270 | emit_sse_operand(src, dst); |
| 4271 | emit(imm8); |
| 4272 | } |
| 4273 | |
| 4274 | void Assembler::sse4_2_instr(XMMRegister dst, XMMRegister src, byte prefix, |
| 4275 | byte escape1, byte escape2, byte opcode) { |
| 4276 | DCHECK(IsEnabled(SSE4_2))((void) 0); |
| 4277 | EnsureSpace ensure_space(this); |
| 4278 | emit(prefix); |
| 4279 | emit_optional_rex_32(dst, src); |
| 4280 | emit(escape1); |
| 4281 | emit(escape2); |
| 4282 | emit(opcode); |
| 4283 | emit_sse_operand(dst, src); |
| 4284 | } |
| 4285 | |
| 4286 | void Assembler::sse4_2_instr(XMMRegister dst, Operand src, byte prefix, |
| 4287 | byte escape1, byte escape2, byte opcode) { |
| 4288 | DCHECK(IsEnabled(SSE4_2))((void) 0); |
| 4289 | EnsureSpace ensure_space(this); |
| 4290 | emit(prefix); |
| 4291 | emit_optional_rex_32(dst, src); |
| 4292 | emit(escape1); |
| 4293 | emit(escape2); |
| 4294 | emit(opcode); |
| 4295 | emit_sse_operand(dst, src); |
| 4296 | } |
| 4297 | |
| 4298 | void Assembler::lddqu(XMMRegister dst, Operand src) { |
| 4299 | DCHECK(IsEnabled(SSE3))((void) 0); |
| 4300 | EnsureSpace ensure_space(this); |
| 4301 | emit(0xF2); |
| 4302 | emit_optional_rex_32(dst, src); |
| 4303 | emit(0x0F); |
| 4304 | emit(0xF0); |
| 4305 | emit_sse_operand(dst, src); |
| 4306 | } |
| 4307 | |
| 4308 | void Assembler::movddup(XMMRegister dst, XMMRegister src) { |
| 4309 | DCHECK(IsEnabled(SSE3))((void) 0); |
| 4310 | EnsureSpace ensure_space(this); |
| 4311 | emit(0xF2); |
| 4312 | emit_optional_rex_32(dst, src); |
| 4313 | emit(0x0F); |
| 4314 | emit(0x12); |
| 4315 | emit_sse_operand(dst, src); |
| 4316 | } |
| 4317 | |
| 4318 | void Assembler::movddup(XMMRegister dst, Operand src) { |
| 4319 | DCHECK(IsEnabled(SSE3))((void) 0); |
| 4320 | EnsureSpace ensure_space(this); |
| 4321 | emit(0xF2); |
| 4322 | emit_optional_rex_32(dst, src); |
| 4323 | emit(0x0F); |
| 4324 | emit(0x12); |
| 4325 | emit_sse_operand(dst, src); |
| 4326 | } |
| 4327 | |
| 4328 | void Assembler::movshdup(XMMRegister dst, XMMRegister src) { |
| 4329 | DCHECK(IsEnabled(SSE3))((void) 0); |
| 4330 | EnsureSpace ensure_space(this); |
| 4331 | emit(0xF3); |
| 4332 | emit_optional_rex_32(dst, src); |
| 4333 | emit(0x0F); |
| 4334 | emit(0x16); |
| 4335 | emit_sse_operand(dst, src); |
| 4336 | } |
| 4337 | |
| 4338 | void Assembler::psrldq(XMMRegister dst, uint8_t shift) { |
| 4339 | EnsureSpace ensure_space(this); |
| 4340 | emit(0x66); |
| 4341 | emit_optional_rex_32(dst); |
| 4342 | emit(0x0F); |
| 4343 | emit(0x73); |
| 4344 | emit_sse_operand(dst); |
| 4345 | emit(shift); |
| 4346 | } |
| 4347 | |
| 4348 | void Assembler::pshufhw(XMMRegister dst, XMMRegister src, uint8_t shuffle) { |
| 4349 | EnsureSpace ensure_space(this); |
| 4350 | emit(0xF3); |
| 4351 | emit_optional_rex_32(dst, src); |
| 4352 | emit(0x0F); |
| 4353 | emit(0x70); |
| 4354 | emit_sse_operand(dst, src); |
| 4355 | emit(shuffle); |
| 4356 | } |
| 4357 | |
| 4358 | void Assembler::pshufhw(XMMRegister dst, Operand src, uint8_t shuffle) { |
| 4359 | EnsureSpace ensure_space(this); |
| 4360 | emit(0xF3); |
| 4361 | emit_optional_rex_32(dst, src); |
| 4362 | emit(0x0F); |
| 4363 | emit(0x70); |
| 4364 | emit_sse_operand(dst, src); |
| 4365 | emit(shuffle); |
| 4366 | } |
| 4367 | |
| 4368 | void Assembler::pshuflw(XMMRegister dst, XMMRegister src, uint8_t shuffle) { |
| 4369 | EnsureSpace ensure_space(this); |
| 4370 | emit(0xF2); |
| 4371 | emit_optional_rex_32(dst, src); |
| 4372 | emit(0x0F); |
| 4373 | emit(0x70); |
| 4374 | emit_sse_operand(dst, src); |
| 4375 | emit(shuffle); |
| 4376 | } |
| 4377 | |
| 4378 | void Assembler::pshuflw(XMMRegister dst, Operand src, uint8_t shuffle) { |
| 4379 | EnsureSpace ensure_space(this); |
| 4380 | emit(0xF2); |
| 4381 | emit_optional_rex_32(dst, src); |
| 4382 | emit(0x0F); |
| 4383 | emit(0x70); |
| 4384 | emit_sse_operand(dst, src); |
| 4385 | emit(shuffle); |
| 4386 | } |
| 4387 | |
| 4388 | void Assembler::pshufd(XMMRegister dst, XMMRegister src, uint8_t shuffle) { |
| 4389 | EnsureSpace ensure_space(this); |
| 4390 | emit(0x66); |
| 4391 | emit_optional_rex_32(dst, src); |
| 4392 | emit(0x0F); |
| 4393 | emit(0x70); |
| 4394 | emit_sse_operand(dst, src); |
| 4395 | emit(shuffle); |
| 4396 | } |
| 4397 | |
| 4398 | void Assembler::pshufd(XMMRegister dst, Operand src, uint8_t shuffle) { |
| 4399 | EnsureSpace ensure_space(this); |
| 4400 | emit(0x66); |
| 4401 | emit_optional_rex_32(dst, src); |
| 4402 | emit(0x0F); |
| 4403 | emit(0x70); |
| 4404 | emit_sse_operand(dst, src); |
| 4405 | emit(shuffle); |
| 4406 | } |
| 4407 | |
| 4408 | void Assembler::emit_sse_operand(XMMRegister reg, Operand adr) { |
| 4409 | Register ireg = Register::from_code(reg.code()); |
| 4410 | emit_operand(ireg, adr); |
| 4411 | } |
| 4412 | |
| 4413 | void Assembler::emit_sse_operand(Register reg, Operand adr) { |
| 4414 | emit_operand(reg, adr); |
| 4415 | } |
| 4416 | |
| 4417 | void Assembler::emit_sse_operand(XMMRegister dst, XMMRegister src) { |
| 4418 | emit(0xC0 | (dst.low_bits() << 3) | src.low_bits()); |
| 4419 | } |
| 4420 | |
| 4421 | void Assembler::emit_sse_operand(XMMRegister dst, Register src) { |
| 4422 | emit(0xC0 | (dst.low_bits() << 3) | src.low_bits()); |
| 4423 | } |
| 4424 | |
| 4425 | void Assembler::emit_sse_operand(Register dst, XMMRegister src) { |
| 4426 | emit(0xC0 | (dst.low_bits() << 3) | src.low_bits()); |
| 4427 | } |
| 4428 | |
| 4429 | void Assembler::emit_sse_operand(XMMRegister dst) { |
| 4430 | emit(0xD8 | dst.low_bits()); |
| 4431 | } |
| 4432 | |
| 4433 | void Assembler::db(uint8_t data) { |
| 4434 | EnsureSpace ensure_space(this); |
| 4435 | emit(data); |
| 4436 | } |
| 4437 | |
| 4438 | void Assembler::dd(uint32_t data, RelocInfo::Mode rmode) { |
| 4439 | EnsureSpace ensure_space(this); |
| 4440 | if (!RelocInfo::IsNoInfo(rmode)) { |
| 4441 | DCHECK(RelocInfo::IsDataEmbeddedObject(rmode) ||((void) 0) |
| 4442 | RelocInfo::IsLiteralConstant(rmode))((void) 0); |
| 4443 | RecordRelocInfo(rmode); |
| 4444 | } |
| 4445 | emitl(data); |
| 4446 | } |
| 4447 | |
| 4448 | void Assembler::dq(uint64_t data, RelocInfo::Mode rmode) { |
| 4449 | EnsureSpace ensure_space(this); |
| 4450 | if (!RelocInfo::IsNoInfo(rmode)) { |
| 4451 | DCHECK(RelocInfo::IsDataEmbeddedObject(rmode) ||((void) 0) |
| 4452 | RelocInfo::IsLiteralConstant(rmode))((void) 0); |
| 4453 | RecordRelocInfo(rmode); |
| 4454 | } |
| 4455 | emitq(data); |
| 4456 | } |
| 4457 | |
| 4458 | void Assembler::dq(Label* label) { |
| 4459 | EnsureSpace ensure_space(this); |
| 4460 | if (label->is_bound()) { |
| 4461 | internal_reference_positions_.push_back(pc_offset()); |
| 4462 | emit(Immediate64(reinterpret_cast<Address>(buffer_start_) + label->pos(), |
| 4463 | RelocInfo::INTERNAL_REFERENCE)); |
| 4464 | } else { |
| 4465 | RecordRelocInfo(RelocInfo::INTERNAL_REFERENCE); |
| 4466 | emitl(0); // Zero for the first 32bit marks it as 64bit absolute address. |
| 4467 | if (label->is_linked()) { |
| 4468 | emitl(label->pos()); |
| 4469 | label->link_to(pc_offset() - sizeof(int32_t)); |
| 4470 | } else { |
| 4471 | DCHECK(label->is_unused())((void) 0); |
| 4472 | int32_t current = pc_offset(); |
| 4473 | emitl(current); |
| 4474 | label->link_to(current); |
| 4475 | } |
| 4476 | } |
| 4477 | } |
| 4478 | |
| 4479 | // Relocation information implementations. |
| 4480 | |
| 4481 | void Assembler::RecordRelocInfo(RelocInfo::Mode rmode, intptr_t data) { |
| 4482 | if (!ShouldRecordRelocInfo(rmode)) return; |
| 4483 | RelocInfo rinfo(reinterpret_cast<Address>(pc_), rmode, data, Code()); |
| 4484 | reloc_info_writer.Write(&rinfo); |
| 4485 | } |
| 4486 | |
| 4487 | const int RelocInfo::kApplyMask = |
| 4488 | RelocInfo::ModeMask(RelocInfo::CODE_TARGET) | |
| 4489 | RelocInfo::ModeMask(RelocInfo::RUNTIME_ENTRY) | |
| 4490 | RelocInfo::ModeMask(RelocInfo::INTERNAL_REFERENCE) | |
| 4491 | RelocInfo::ModeMask(RelocInfo::WASM_CALL); |
| 4492 | |
| 4493 | bool RelocInfo::IsCodedSpecially() { |
| 4494 | // The deserializer needs to know whether a pointer is specially coded. Being |
| 4495 | // specially coded on x64 means that it is a relative 32 bit address, as used |
| 4496 | // by branch instructions. |
| 4497 | return (1 << rmode_) & kApplyMask; |
| 4498 | } |
| 4499 | |
| 4500 | bool RelocInfo::IsInConstantPool() { return false; } |
| 4501 | |
| 4502 | } // namespace internal |
| 4503 | } // namespace v8 |
| 4504 | |
| 4505 | #endif // V8_TARGET_ARCH_X64 |