// Copyright 2012 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "src/codegen.h"
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#include <cmath>
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#include <memory>
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#include "src/flags.h"
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namespace v8 {
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namespace internal {
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#define UNARY_MATH_FUNCTION(name, generator) \
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static UnaryMathFunctionWithIsolate fast_##name##_function = nullptr; \
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double std_##name(double x, Isolate* isolate) { return std::name(x); } \
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void init_fast_##name##_function(Isolate* isolate) { \
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if (FLAG_fast_math) fast_##name##_function = generator(isolate); \
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if (!fast_##name##_function) fast_##name##_function = std_##name; \
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} \
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void lazily_initialize_fast_##name(Isolate* isolate) { \
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if (!fast_##name##_function) init_fast_##name##_function(isolate); \
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} \
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double fast_##name(double x, Isolate* isolate) { \
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return (*fast_##name##_function)(x, isolate); \
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}
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UNARY_MATH_FUNCTION(sqrt, CreateSqrtFunction)
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#undef UNARY_MATH_FUNCTION
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} // namespace internal
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} // namespace v8
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