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| author | Krzysztof Parzyszek <kparzysz@codeaurora.org> | 2016-08-04 14:17:16 +0000 |
|---|---|---|
| committer | Krzysztof Parzyszek <kparzysz@codeaurora.org> | 2016-08-04 14:17:16 +0000 |
| commit | 7773c58458157a45df8252322da8a840dc12bfdd (patch) | |
| tree | 73f896534351c2fd4e8afd2d268907a238a4f976 /llvm/lib/Target/Hexagon/HexagonPeephole.cpp | |
| parent | f919d8b36071bdacd699e28d7788bb904ba5f23d (diff) | |
| download | bcm5719-llvm-7773c58458157a45df8252322da8a840dc12bfdd.tar.gz bcm5719-llvm-7773c58458157a45df8252322da8a840dc12bfdd.zip | |
[Hexagon] Clear kill flags from modified registers in peephole optimizer
llvm-svn: 277727
Diffstat (limited to 'llvm/lib/Target/Hexagon/HexagonPeephole.cpp')
| -rw-r--r-- | llvm/lib/Target/Hexagon/HexagonPeephole.cpp | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/llvm/lib/Target/Hexagon/HexagonPeephole.cpp b/llvm/lib/Target/Hexagon/HexagonPeephole.cpp index b064decc5c7..8d1ddeb3aaf 100644 --- a/llvm/lib/Target/Hexagon/HexagonPeephole.cpp +++ b/llvm/lib/Target/Hexagon/HexagonPeephole.cpp @@ -250,6 +250,7 @@ bool HexagonPeephole::runOnMachineFunction(MachineFunction &MF) { if (unsigned PeepholeSrc = PeepholeMap.lookup(Reg0)) { // Change the 1st operand and, flip the opcode. MI.getOperand(0).setReg(PeepholeSrc); + MRI->clearKillFlags(PeepholeSrc); int NewOp = QII->getInvertedPredicatedOpcode(MI.getOpcode()); MI.setDesc(QII->get(NewOp)); Done = true; @@ -280,6 +281,7 @@ bool HexagonPeephole::runOnMachineFunction(MachineFunction &MF) { unsigned PSrc = MI.getOperand(PR).getReg(); if (unsigned POrig = PeepholeMap.lookup(PSrc)) { MI.getOperand(PR).setReg(POrig); + MRI->clearKillFlags(POrig); MI.setDesc(QII->get(NewOp)); // Swap operands S1 and S2. MachineOperand Op1 = MI.getOperand(S1); @@ -304,6 +306,7 @@ void HexagonPeephole::ChangeOpInto(MachineOperand &Dst, MachineOperand &Src) { if (Src.isReg()) { Dst.setReg(Src.getReg()); Dst.setSubReg(Src.getSubReg()); + MRI->clearKillFlags(Src.getReg()); } else if (Src.isImm()) { Dst.ChangeToImmediate(Src.getImm()); } else { @@ -316,7 +319,7 @@ void HexagonPeephole::ChangeOpInto(MachineOperand &Dst, MachineOperand &Src) { Dst.setImm(Src.getImm()); } else if (Src.isReg()) { Dst.ChangeToRegister(Src.getReg(), Src.isDef(), Src.isImplicit(), - Src.isKill(), Src.isDead(), Src.isUndef(), + false, Src.isDead(), Src.isUndef(), Src.isDebug()); Dst.setSubReg(Src.getSubReg()); } else { |
