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Disable FASTFLOAT_ASSUME by default.

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This commit is contained in:
IRainman 2025-03-28 20:15:19 +03:00
parent 91e6c4d440
commit afb54a595e
1 changed files with 7 additions and 2 deletions
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9
include/fast_float/constexpr_feature_detect.h
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@ -56,8 +56,13 @@
#define FASTFLOAT_DETAIL_MUST_DEFINE_CONSTEXPR_VARIABLE 1
#endif
// For support attribute [[assume]] is declared in P1774
#if defined(__clang__) // needs testing
#if 1 // TODO needs platform specific tests for this
#define FASTFLOAT_ASSUME(expr)
#elif defined(__cpp_attrubute_assume)
#define FASTFLOAT_ASSUME(expr) [[assume(expr)]]
#elif defined(__clang__) // needs testing
#define FASTFLOAT_ASSUME(expr) __builtin_assume(expr)
#elif defined(__GNUC__) && !defined(__ICC) // needs testing
#define FASTFLOAT_ASSUME(expr) \
@ -67,7 +72,7 @@
}
#elif defined(__ICC) // needs testing
#define FASTFLOAT_ASSUME(expr) __assume(expr)
#elif defined(_MSC_VER)
#elif defined(_MSC_VER) // needs testing
/* currently disable, because MSVC is generated slower code when enabled,
it's probably reason why MSVC doesnt have [[assume]] */
#define FASTFLOAT_ASSUME(expr) /*__assume(expr)*/