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| author | Andrea Di Biagio <Andrea_DiBiagio@sn.scee.net> | 2014-06-30 18:23:58 +0000 |
|---|---|---|
| committer | Andrea Di Biagio <Andrea_DiBiagio@sn.scee.net> | 2014-06-30 18:23:58 +0000 |
| commit | eb606a3c279cc2dba8cdd1084405652013c4b9db (patch) | |
| tree | 08e7b81a075f1aceca9342835ec906100c777cea /clang | |
| parent | d0e0f0aea060e5bc655b3f739df7045fb540fb49 (diff) | |
| download | bcm5719-llvm-eb606a3c279cc2dba8cdd1084405652013c4b9db.tar.gz bcm5719-llvm-eb606a3c279cc2dba8cdd1084405652013c4b9db.zip | |
[x86] Add Clang support for intrinsic __rdpmc.
This patch adds intrinsic __rdpmc to header file 'ia32intrin.h'.
Intrinsic __rdmpc can be used to read performance monitoring counters. It is
implemented as a direct call to __builtin_ia32_rdpmc.
It takes as input a value representing the index of the performance counter to
read. The value of the performance counter is then returned as a unsigned
64-bit quantity.
llvm-svn: 212053
Diffstat (limited to 'clang')
| -rw-r--r-- | clang/include/clang/Basic/BuiltinsX86.def | 1 | ||||
| -rw-r--r-- | clang/lib/Headers/ia32intrin.h | 5 | ||||
| -rw-r--r-- | clang/test/CodeGen/builtins-x86.c | 1 |
3 files changed, 7 insertions, 0 deletions
diff --git a/clang/include/clang/Basic/BuiltinsX86.def b/clang/include/clang/Basic/BuiltinsX86.def index 6cd7a79d545..1f377a8ab1d 100644 --- a/clang/include/clang/Basic/BuiltinsX86.def +++ b/clang/include/clang/Basic/BuiltinsX86.def @@ -757,6 +757,7 @@ BUILTIN(__builtin_ia32_xbegin, "i", "") BUILTIN(__builtin_ia32_xend, "v", "") BUILTIN(__builtin_ia32_xabort, "vIc", "") BUILTIN(__builtin_ia32_xtest, "i", "") +BUILTIN(__builtin_ia32_rdpmc, "ULLii", "") BUILTIN(__builtin_ia32_rdtsc, "ULLi", "") BUILTIN(__builtin_ia32_rdtscp, "ULLiUi*", "") diff --git a/clang/lib/Headers/ia32intrin.h b/clang/lib/Headers/ia32intrin.h index 55c22473ba7..5adf3f1f5d8 100644 --- a/clang/lib/Headers/ia32intrin.h +++ b/clang/lib/Headers/ia32intrin.h @@ -79,6 +79,11 @@ __writeeflags(unsigned int __f) } #endif /* !__x86_64__ */ +static __inline__ unsigned long long __attribute__((__always_inline__, __nodebug__)) +__rdpmc(int __A) { + return __builtin_ia32_rdpmc(__A); +} + /* __rdtsc */ static __inline__ unsigned long long __attribute__((__always_inline__, __nodebug__)) __rdtsc(void) { diff --git a/clang/test/CodeGen/builtins-x86.c b/clang/test/CodeGen/builtins-x86.c index 8443574c528..0f038b87355 100644 --- a/clang/test/CodeGen/builtins-x86.c +++ b/clang/test/CodeGen/builtins-x86.c @@ -266,6 +266,7 @@ void f0() { tmp_i = __builtin_ia32_rdtsc(); tmp_i = __builtin_ia32_rdtscp(&tmp_Ui); + tmp_LLi = __builtin_ia32_rdpmc(tmp_i); #ifdef USE_64 tmp_LLi = __builtin_ia32_cvtss2si64(tmp_V4f); #endif |
