diff options
| -rw-r--r-- | clang/include/clang/Basic/BuiltinsX86.def | 2 | ||||
| -rw-r--r-- | clang/lib/Headers/ia32intrin.h | 10 | ||||
| -rw-r--r-- | clang/test/CodeGen/builtins-x86.c | 3 |
3 files changed, 12 insertions, 3 deletions
diff --git a/clang/include/clang/Basic/BuiltinsX86.def b/clang/include/clang/Basic/BuiltinsX86.def index 4a67fc1f5ff..8faaea381ae 100644 --- a/clang/include/clang/Basic/BuiltinsX86.def +++ b/clang/include/clang/Basic/BuiltinsX86.def @@ -760,5 +760,7 @@ BUILTIN(__builtin_ia32_xbegin, "i", "") BUILTIN(__builtin_ia32_xend, "v", "") BUILTIN(__builtin_ia32_xabort, "vIc", "") BUILTIN(__builtin_ia32_xtest, "i", "") +BUILTIN(__builtin_ia32_rdtsc, "ULLi", "") +BUILTIN(__builtin_ia32_rdtscp, "ULLiUi*", "") #undef BUILTIN diff --git a/clang/lib/Headers/ia32intrin.h b/clang/lib/Headers/ia32intrin.h index a5985f660bb..55c22473ba7 100644 --- a/clang/lib/Headers/ia32intrin.h +++ b/clang/lib/Headers/ia32intrin.h @@ -82,9 +82,13 @@ __writeeflags(unsigned int __f) /* __rdtsc */ static __inline__ unsigned long long __attribute__((__always_inline__, __nodebug__)) __rdtsc(void) { - unsigned int __eax, __edx; - __asm__ ("rdtsc" : "=a" (__eax), "=d" (__edx)); - return ((unsigned long long)__edx << 32) | __eax; + return __builtin_ia32_rdtsc(); +} + +/* __rdtscp */ +static __inline__ unsigned long long __attribute__((__always_inline__, __nodebug__)) +__rdtscp(unsigned int *__A) { + return __builtin_ia32_rdtscp(__A); } #define _rdtsc() __rdtsc() diff --git a/clang/test/CodeGen/builtins-x86.c b/clang/test/CodeGen/builtins-x86.c index 261bf2f5d8b..6df005d8604 100644 --- a/clang/test/CodeGen/builtins-x86.c +++ b/clang/test/CodeGen/builtins-x86.c @@ -263,6 +263,9 @@ void f0() { tmp_V4f = __builtin_ia32_cvtpi2ps(tmp_V4f, tmp_V2i); tmp_V2i = __builtin_ia32_cvtps2pi(tmp_V4f); tmp_i = __builtin_ia32_cvtss2si(tmp_V4f); + + tmp_i = __builtin_ia32_rdtsc(); + tmp_i = __builtin_ia32_rdtscp(&tmp_Ui); #ifdef USE_64 tmp_LLi = __builtin_ia32_cvtss2si64(tmp_V4f); #endif |
