diff options
| author | Michael Ilseman <milseman@apple.com> | 2012-12-19 23:17:20 +0000 |
|---|---|---|
| committer | Michael Ilseman <milseman@apple.com> | 2012-12-19 23:17:20 +0000 |
| commit | f846f16c92590379e900d01812e828e83b759cee (patch) | |
| tree | 44b01d6f2d2da35339c228a018261d963da819d1 /lib/VMCore/Function.cpp | |
| parent | 18e7211068c9d2c6204512f9c468ee179818a4b6 (diff) | |
Refactor isIntrinsic() to be quicker, and change classof() (and thus, isa<IntrinsicInst>()) to use it. This decreases the number of occurrences of the slow-path string matching performed by getIntrinsicID().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170602 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/VMCore/Function.cpp')
| -rw-r--r-- | lib/VMCore/Function.cpp | 6 |
1 files changed, 1 insertions, 5 deletions
diff --git a/lib/VMCore/Function.cpp b/lib/VMCore/Function.cpp index cd3b663ac8..5ff088e7f5 100644 --- a/lib/VMCore/Function.cpp +++ b/lib/VMCore/Function.cpp @@ -326,15 +326,11 @@ void Function::copyAttributesFrom(const GlobalValue *Src) { /// unsigned Function::getIntrinsicID() const { const ValueName *ValName = this->getValueName(); - if (!ValName) + if (!ValName || !isIntrinsic()) return 0; unsigned Len = ValName->getKeyLength(); const char *Name = ValName->getKeyData(); - if (Len < 5 || Name[4] != '.' || Name[0] != 'l' || Name[1] != 'l' - || Name[2] != 'v' || Name[3] != 'm') - return 0; // All intrinsics start with 'llvm.' - #define GET_FUNCTION_RECOGNIZER #include "llvm/Intrinsics.gen" #undef GET_FUNCTION_RECOGNIZER |