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3rdparty/softfloat3: Proper way to detect presence of __int128 on GCC/clang.

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This commit is contained in:
Vas Crabb 2025-04-20 08:38:43 +10:00
parent cfec4a0ec0
commit 91cc7c0992
1 changed files with 7 additions and 6 deletions
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13
3rdparty/softfloat3/build/MAME/platform.h vendored
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@ -56,6 +56,7 @@ Softfloat 3 MAME modifications
#include <intrin.h>
// MSVC has __lzcnt16 as well, but opts-GCC.h expects __lzcnt for uint16_t and uint32_t
// FIXME: this requires the ABM instruction set extension and shouldn't be enabled if it isn't available
#if defined(_M_IX86) || defined(_M_AMD64)
#define __builtin_clz __lzcnt
#endif // defined(_M_IX86) || defined(_M_AMD64)
@ -64,14 +65,14 @@ Softfloat 3 MAME modifications
#define __builtin_clzll __lzcnt64
#endif // defined(_M_AMD64)
#else // defined(_MSC_VER)
#else // defined(_MSC_VER) && !defined(__clang__))
// true for GCC and Clang on Intel and ARM, and MSVC on Intel.
#define SOFTFLOAT_BUILTIN_CLZ 1
#if defined(PTR64)
#define SOFTFLOAT_INTRINSIC_INT128 1
#endif // defined(PTR64)
#endif // defined(_MSC_VER)
#if defined(__SIZEOF_INT128__)
#define SOFTFLOAT_INTRINSIC_INT128 1
#endif // defined(__SIZEOF_INT128__)
#endif // defined(_MSC_VER) && !defined(__clang__)
#include "../../source/include/opts-GCC.h"