diff options
| -rw-r--r-- | clang/include/clang/Basic/BuiltinsX86.def | 7 | ||||
| -rw-r--r-- | clang/lib/Headers/ia32intrin.h | 32 |
2 files changed, 11 insertions, 28 deletions
diff --git a/clang/include/clang/Basic/BuiltinsX86.def b/clang/include/clang/Basic/BuiltinsX86.def index 64fa4da9bbe..f738cc12a43 100644 --- a/clang/include/clang/Basic/BuiltinsX86.def +++ b/clang/include/clang/Basic/BuiltinsX86.def @@ -41,6 +41,13 @@ TARGET_BUILTIN(__builtin_ia32_undef128, "V2d", "nc", "") TARGET_BUILTIN(__builtin_ia32_undef256, "V4d", "nc", "") TARGET_BUILTIN(__builtin_ia32_undef512, "V8d", "nc", "") +// FLAGS +// +TARGET_BUILTIN(__builtin_ia32_readeflags_u32, "Ui", "n", "") +TARGET_BUILTIN(__builtin_ia32_readeflags_u64, "ULLi", "n", "") +TARGET_BUILTIN(__builtin_ia32_writeeflags_u32, "vUi", "n", "") +TARGET_BUILTIN(__builtin_ia32_writeeflags_u64, "vULLi", "n", "") + // 3DNow! // TARGET_BUILTIN(__builtin_ia32_femms, "v", "", "3dnow") diff --git a/clang/lib/Headers/ia32intrin.h b/clang/lib/Headers/ia32intrin.h index 5adf3f1f5d8..b2f82bb59e3 100644 --- a/clang/lib/Headers/ia32intrin.h +++ b/clang/lib/Headers/ia32intrin.h @@ -32,50 +32,26 @@ static __inline__ unsigned long long __attribute__((__always_inline__, __nodebug__)) __readeflags(void) { - unsigned long long __res = 0; - __asm__ __volatile__ ("pushf\n\t" - "popq %0\n" - :"=r"(__res) - : - : - ); - return __res; + return __builtin_ia32_readeflags_u64(); } static __inline__ void __attribute__((__always_inline__, __nodebug__)) __writeeflags(unsigned long long __f) { - __asm__ __volatile__ ("pushq %0\n\t" - "popf\n" - : - :"r"(__f) - :"flags" - ); + __builtin_ia32_writeeflags_u64(__f); } #else /* !__x86_64__ */ static __inline__ unsigned int __attribute__((__always_inline__, __nodebug__)) __readeflags(void) { - unsigned int __res = 0; - __asm__ __volatile__ ("pushf\n\t" - "popl %0\n" - :"=r"(__res) - : - : - ); - return __res; + return __builtin_ia32_readeflags_u32(); } static __inline__ void __attribute__((__always_inline__, __nodebug__)) __writeeflags(unsigned int __f) { - __asm__ __volatile__ ("pushl %0\n\t" - "popf\n" - : - :"r"(__f) - :"flags" - ); + __builtin_ia32_writeeflags_u32(__f); } #endif /* !__x86_64__ */ |
