diff options
Diffstat (limited to 'deps/v8/src/assembler.cc')
| -rw-r--r-- | deps/v8/src/assembler.cc | 49 |
1 files changed, 15 insertions, 34 deletions
diff --git a/deps/v8/src/assembler.cc b/deps/v8/src/assembler.cc index 83dbbe8134..b44bc06ba3 100644 --- a/deps/v8/src/assembler.cc +++ b/deps/v8/src/assembler.cc @@ -120,7 +120,7 @@ double min_int; double one_half; double minus_one_half; double negative_infinity; -double the_hole_nan; +uint64_t the_hole_nan; double uint32_bias; }; @@ -190,6 +190,7 @@ void AssemblerBase::FlushICache(Isolate* isolate, void* start, size_t size) { if (size == 0) return; #if defined(USE_SIMULATOR) + base::LockGuard<base::Mutex> lock_guard(isolate->simulator_i_cache_mutex()); Simulator::FlushICache(isolate->simulator_i_cache(), start, size); #else CpuFeatures::FlushICache(start, size); @@ -233,22 +234,14 @@ PredictableCodeSizeScope::~PredictableCodeSizeScope() { // Implementation of CpuFeatureScope #ifdef DEBUG -CpuFeatureScope::CpuFeatureScope(AssemblerBase* assembler, CpuFeature f) +CpuFeatureScope::CpuFeatureScope(AssemblerBase* assembler, CpuFeature f, + CheckPolicy check) : assembler_(assembler) { - DCHECK(CpuFeatures::IsSupported(f)); + DCHECK_IMPLIES(check == kCheckSupported, CpuFeatures::IsSupported(f)); old_enabled_ = assembler_->enabled_cpu_features(); - uint64_t mask = static_cast<uint64_t>(1) << f; - // TODO(svenpanne) This special case below doesn't belong here! -#if V8_TARGET_ARCH_ARM - // ARMv7 is implied by VFP3. - if (f == VFP3) { - mask |= static_cast<uint64_t>(1) << ARMv7; - } -#endif - assembler_->set_enabled_cpu_features(old_enabled_ | mask); + assembler_->EnableCpuFeature(f); } - CpuFeatureScope::~CpuFeatureScope() { assembler_->set_enabled_cpu_features(old_enabled_); } @@ -350,19 +343,18 @@ void RelocInfo::update_wasm_memory_reference( DCHECK(IsWasmMemoryReference(rmode_) || IsWasmMemorySizeReference(rmode_)); if (IsWasmMemoryReference(rmode_)) { Address updated_reference; - DCHECK(old_size == 0 || Memory::IsAddressInRange( - old_base, wasm_memory_reference(), old_size)); + DCHECK_GE(wasm_memory_reference(), old_base); updated_reference = new_base + (wasm_memory_reference() - old_base); - DCHECK(new_size == 0 || - Memory::IsAddressInRange(new_base, updated_reference, new_size)); + // The reference is not checked here but at runtime. Validity of references + // may change over time. unchecked_update_wasm_memory_reference(updated_reference, icache_flush_mode); } else if (IsWasmMemorySizeReference(rmode_)) { - uint32_t updated_size_reference; - DCHECK(old_size == 0 || wasm_memory_size_reference() <= old_size); - updated_size_reference = - new_size + (wasm_memory_size_reference() - old_size); - DCHECK(updated_size_reference <= new_size); + uint32_t current_size_reference = wasm_memory_size_reference(); + DCHECK(old_size == 0 || current_size_reference <= old_size); + uint32_t offset = old_size - current_size_reference; + DCHECK_GE(new_size, offset); + uint32_t updated_size_reference = new_size - offset; unchecked_update_wasm_memory_size(updated_size_reference, icache_flush_mode); } else { @@ -930,7 +922,7 @@ void ExternalReference::SetUp() { double_constants.min_int = kMinInt; double_constants.one_half = 0.5; double_constants.minus_one_half = -0.5; - double_constants.the_hole_nan = bit_cast<double>(kHoleNanInt64); + double_constants.the_hole_nan = kHoleNanInt64; double_constants.negative_infinity = -V8_INFINITY; double_constants.uint32_bias = static_cast<double>(static_cast<uint32_t>(0xFFFFFFFF)) + 1; @@ -1601,17 +1593,6 @@ ExternalReference ExternalReference::debug_after_break_target_address( } -ExternalReference ExternalReference::virtual_handler_register( - Isolate* isolate) { - return ExternalReference(isolate->virtual_handler_register_address()); -} - - -ExternalReference ExternalReference::virtual_slot_register(Isolate* isolate) { - return ExternalReference(isolate->virtual_slot_register_address()); -} - - ExternalReference ExternalReference::runtime_function_table_address( Isolate* isolate) { return ExternalReference( |