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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/lib | |
| 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/lib')
| -rw-r--r-- | clang/lib/Headers/ia32intrin.h | 5 |
1 files changed, 5 insertions, 0 deletions
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) { |
