Revision f230a1cf deps/v8/src/assembler.cc
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double negative_infinity; |
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double canonical_non_hole_nan; |
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double the_hole_nan; |
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double uint32_bias; |
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}; |
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static DoubleConstant double_constants; |
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// ----------------------------------------------------------------------------- |
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// Implementation of PlatformFeatureScope |
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PlatformFeatureScope::PlatformFeatureScope(CpuFeature f) |
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: old_cross_compile_(CpuFeatures::cross_compile_) {
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// CpuFeatures is a global singleton, therefore this is only safe in |
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// single threaded code. |
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ASSERT(Serializer::enabled()); |
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uint64_t mask = static_cast<uint64_t>(1) << f; |
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CpuFeatures::cross_compile_ |= mask; |
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} |
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PlatformFeatureScope::~PlatformFeatureScope() {
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CpuFeatures::cross_compile_ = old_cross_compile_; |
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} |
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// ----------------------------------------------------------------------------- |
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// Implementation of Label |
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int Label::pos() const {
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double_constants.canonical_non_hole_nan = OS::nan_value(); |
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double_constants.the_hole_nan = BitCast<double>(kHoleNanInt64); |
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double_constants.negative_infinity = -V8_INFINITY; |
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double_constants.uint32_bias = |
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static_cast<double>(static_cast<uint32_t>(0xFFFFFFFF)) + 1; |
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math_exp_data_mutex = new Mutex(); |
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} |
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} |
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ExternalReference ExternalReference::get_mark_code_as_executed_function( |
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Isolate* isolate) {
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return ExternalReference(Redirect( |
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isolate, FUNCTION_ADDR(Code::MarkCodeAsExecuted))); |
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} |
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ExternalReference ExternalReference::date_cache_stamp(Isolate* isolate) {
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return ExternalReference(isolate->date_cache()->stamp_address()); |
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} |
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} |
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ExternalReference ExternalReference::record_object_allocation_function( |
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Isolate* isolate) {
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return ExternalReference( |
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Redirect(isolate, |
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FUNCTION_ADDR(HeapProfiler::RecordObjectAllocationFromMasm))); |
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} |
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ExternalReference ExternalReference::address_of_uint32_bias() {
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return ExternalReference( |
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reinterpret_cast<void*>(&double_constants.uint32_bias)); |
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} |
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#ifndef V8_INTERPRETED_REGEXP |
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ExternalReference ExternalReference::re_check_stack_guard_state( |
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