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