diff options
Diffstat (limited to 'clang/lib/Headers/intrin.h')
| -rw-r--r-- | clang/lib/Headers/intrin.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/clang/lib/Headers/intrin.h b/clang/lib/Headers/intrin.h index aca91f3c610..268ac4a17b8 100644 --- a/clang/lib/Headers/intrin.h +++ b/clang/lib/Headers/intrin.h @@ -289,6 +289,10 @@ static __inline__ void _WriteBarrier(void); unsigned __int32 xbegin(void); void _xend(void); +static __inline__ +#define _XCR_XFEATURE_ENABLED_MASK 0 +unsigned __int64 __cdecl _xgetbv(unsigned int); +void __cdecl _xsetbv(unsigned int, unsigned __int64); /* These additional intrinsics are turned on in x64/amd64/x86_64 mode. */ #ifdef __x86_64__ @@ -904,6 +908,12 @@ __cpuidex(int __info[4], int __level, int __ecx) { __asm__ ("cpuid" : "=a"(__info[0]), "=b" (__info[1]), "=c"(__info[2]), "=d"(__info[3]) : "a"(__level), "c"(__ecx)); } +static __inline__ unsigned __int64 __cdecl __DEFAULT_FN_ATTRS +_xgetbv(unsigned int __xcr_no) { + unsigned int __eax, __edx; + __asm__ ("xgetbv" : "=a" (__eax), "=d" (__edx) : "c" (__xcr_no)); + return ((unsigned __int64)__edx << 32) | __eax; +} static __inline__ void __DEFAULT_FN_ATTRS __halt(void) { __asm__ volatile ("hlt"); |
