[llvm-commits] CVS: llvm/lib/VMCore/Function.cpp
Chris Lattner
sabre at nondot.org
Thu Feb 15 11:17:35 PST 2007
Changes in directory llvm/lib/VMCore:
Function.cpp updated: 1.113 -> 1.114
---
Log message:
Implement Function::getIntrinsicID without it needing to call Value::getName,
which allocates a string. This speeds up instcombine on 447.dealII by 5%.
---
Diffs of the changes: (+6 -3)
Function.cpp | 9 ++++++---
1 files changed, 6 insertions(+), 3 deletions(-)
Index: llvm/lib/VMCore/Function.cpp
diff -u llvm/lib/VMCore/Function.cpp:1.113 llvm/lib/VMCore/Function.cpp:1.114
--- llvm/lib/VMCore/Function.cpp:1.113 Sun Feb 11 23:18:08 2007
+++ llvm/lib/VMCore/Function.cpp Thu Feb 15 13:17:16 2007
@@ -160,12 +160,15 @@
/// llvm/Intrinsics.h.
///
unsigned Function::getIntrinsicID() const {
- const std::string& Name = this->getName();
- if (Name.size() < 5 || Name[4] != '.' || Name[0] != 'l' || Name[1] != 'l'
+ const ValueName *ValName = this->getValueName();
+ 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.'
- assert(Name.size() != 5 && "'llvm.' is an invalid intrinsic name!");
+ assert(Len != 5 && "'llvm.' is an invalid intrinsic name!");
#define GET_FUNCTION_RECOGNIZER
#include "llvm/Intrinsics.gen"
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