diff options
Diffstat (limited to 'include/llvm/Transforms/Utils/Local.h')
| -rw-r--r-- | include/llvm/Transforms/Utils/Local.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/include/llvm/Transforms/Utils/Local.h b/include/llvm/Transforms/Utils/Local.h index 2f83174249..c786c96512 100644 --- a/include/llvm/Transforms/Utils/Local.h +++ b/include/llvm/Transforms/Utils/Local.h @@ -20,6 +20,7 @@ namespace llvm { class Pass; +class PHINode; //===----------------------------------------------------------------------===// // Local constant propagation... @@ -55,6 +56,15 @@ bool isInstructionTriviallyDead(Instruction *I); /// bool dceInstruction(BasicBlock::iterator &BBI); +//===----------------------------------------------------------------------===// +// PHI Instruction Simplification +// + +/// hasConstantValue - If the specified PHI node always merges together the same +/// value, return the value, otherwise return null. +/// +Value *hasConstantValue(PHINode *PN); + //===----------------------------------------------------------------------===// // Control Flow Graph Restructuring... |