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| author | Chris Lattner <sabre@nondot.org> | 2003-12-19 05:56:28 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2003-12-19 05:56:28 +0000 |
| commit | abbc2dd77908f146f73f4cd1abfdfe47faacf43d (patch) | |
| tree | 090f03c8525c8381740e2e9a80a01fb225b98490 /include | |
| parent | bb0aca5917e6d078c9b0a3d036919ead1d757740 (diff) | |
| download | external_llvm-abbc2dd77908f146f73f4cd1abfdfe47faacf43d.zip external_llvm-abbc2dd77908f146f73f4cd1abfdfe47faacf43d.tar.gz external_llvm-abbc2dd77908f146f73f4cd1abfdfe47faacf43d.tar.bz2 | |
Add new function
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10529 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'include')
| -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 2f83174..c786c96 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... |