diff options
Diffstat (limited to 'lib/CodeGen/PHIElimination.cpp')
| -rw-r--r-- | lib/CodeGen/PHIElimination.cpp | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/lib/CodeGen/PHIElimination.cpp b/lib/CodeGen/PHIElimination.cpp index d11e01a0c3..58c3dec4c2 100644 --- a/lib/CodeGen/PHIElimination.cpp +++ b/lib/CodeGen/PHIElimination.cpp @@ -71,7 +71,7 @@ bool llvm::PHIElimination::runOnMachineFunction(MachineFunction &Fn) { Changed |= EliminatePHINodes(Fn, *I); // Remove dead IMPLICIT_DEF instructions. - for (SmallPtrSet<MachineInstr*,4>::iterator I = ImpDefs.begin(), + for (SmallPtrSet<MachineInstr*, 4>::iterator I = ImpDefs.begin(), E = ImpDefs.end(); I != E; ++I) { MachineInstr *DefMI = *I; unsigned DefReg = DefMI->getOperand(0).getReg(); @@ -83,8 +83,8 @@ bool llvm::PHIElimination::runOnMachineFunction(MachineFunction &Fn) { for (LoweredPHIMap::iterator I = LoweredPHIs.begin(), E = LoweredPHIs.end(); I != E; ++I) Fn.DeleteMachineInstr(I->first); - LoweredPHIs.clear(); + LoweredPHIs.clear(); ImpDefs.clear(); VRegPHIUseCount.clear(); return Changed; @@ -384,7 +384,8 @@ void llvm::PHIElimination::analyzePHINodes(const MachineFunction& Fn) { bool llvm::PHIElimination::SplitPHIEdges(MachineFunction &MF, MachineBasicBlock &MBB, LiveVariables &LV) { - if (MBB.empty() || MBB.front().getOpcode() != TargetInstrInfo::PHI) + if (MBB.empty() || MBB.front().getOpcode() != TargetInstrInfo::PHI || + MBB.isLandingPad()) return false; // Quick exit for basic blocks without PHIs. for (MachineBasicBlock::const_iterator BBI = MBB.begin(), BBE = MBB.end(); |