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| author | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2010-02-23 00:28:53 +0000 |
|---|---|---|
| committer | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2010-02-23 00:28:53 +0000 |
| commit | f895dbeb29b63f775e341f53ab92609c8da25392 (patch) | |
| tree | 220ee9b4f5726379b750984e89faa96e9d497162 /lib/CodeGen/PHIElimination.cpp | |
| parent | e298d7cc58e8d16234c7ba16ac7ab15c2057d736 (diff) | |
Dead code elimination
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96837 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/PHIElimination.cpp')
| -rw-r--r-- | lib/CodeGen/PHIElimination.cpp | 5 |
1 files changed, 0 insertions, 5 deletions
diff --git a/lib/CodeGen/PHIElimination.cpp b/lib/CodeGen/PHIElimination.cpp index bc49d0de22..9e4bc0c273 100644 --- a/lib/CodeGen/PHIElimination.cpp +++ b/lib/CodeGen/PHIElimination.cpp @@ -55,7 +55,6 @@ void llvm::PHIElimination::getAnalysisUsage(AnalysisUsage &AU) const { bool llvm::PHIElimination::runOnMachineFunction(MachineFunction &Fn) { MRI = &Fn.getRegInfo(); - PHIDefs.clear(); bool Changed = false; // Split critical edges to help the coalescer @@ -214,10 +213,6 @@ void llvm::PHIElimination::LowerAtomicPHINode( TII->copyRegToReg(MBB, AfterPHIsIt, DestReg, IncomingReg, RC, RC); } - // Record PHI def. - assert(!hasPHIDef(DestReg) && "Vreg has multiple phi-defs?"); - PHIDefs[DestReg] = &MBB; - // Update live variable information if there is any. LiveVariables *LV = getAnalysisIfAvailable<LiveVariables>(); if (LV) { |