diff options
Diffstat (limited to 'contrib/compiler-rt/lib/builtins/int_types.h')
| -rw-r--r-- | contrib/compiler-rt/lib/builtins/int_types.h | 23 |
1 files changed, 22 insertions, 1 deletions
diff --git a/contrib/compiler-rt/lib/builtins/int_types.h b/contrib/compiler-rt/lib/builtins/int_types.h index 19002c68bd9d..4c91b75bac6c 100644 --- a/contrib/compiler-rt/lib/builtins/int_types.h +++ b/contrib/compiler-rt/lib/builtins/int_types.h @@ -60,10 +60,19 @@ typedef union }s; } udwords; -#if (defined(__LP64__) || defined(__wasm__) || defined(__mips64)) || defined(__riscv) +#if defined(__LP64__) || defined(__wasm__) || defined(__mips64) || \ + defined(__riscv) || defined(_WIN64) #define CRT_HAS_128BIT #endif +/* MSVC doesn't have a working 128bit integer type. Users should really compile + * compiler-rt with clang, but if they happen to be doing a standalone build for + * asan or something else, disable the 128 bit parts so things sort of work. + */ +#if defined(_MSC_VER) && !defined(__clang__) +#undef CRT_HAS_128BIT +#endif + #ifdef CRT_HAS_128BIT typedef int ti_int __attribute__ ((mode (TI))); typedef unsigned tu_int __attribute__ ((mode (TI))); @@ -139,6 +148,18 @@ typedef struct #endif /* _YUGA_LITTLE_ENDIAN */ } uqwords; +/* Check if the target supports 80 bit extended precision long doubles. + * Notably, on x86 Windows, MSVC only provides a 64-bit long double, but GCC + * still makes it 80 bits. Clang will match whatever compiler it is trying to + * be compatible with. + */ +#if ((defined(__i386__) || defined(__x86_64__)) && !defined(_MSC_VER)) || \ + defined(__m68k__) || defined(__ia64__) +#define HAS_80_BIT_LONG_DOUBLE 1 +#else +#define HAS_80_BIT_LONG_DOUBLE 0 +#endif + #ifndef _STANDALONE typedef union { |