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| author | Evan Cheng <evan.cheng@apple.com> | 2006-11-15 20:58:11 +0000 |
|---|---|---|
| committer | Evan Cheng <evan.cheng@apple.com> | 2006-11-15 20:58:11 +0000 |
| commit | 6ce7dc2a97260eea5fba414332796464912b9359 (patch) | |
| tree | 52d4ff3a3a1db471710e4957aa0068a4800edef8 /lib/Target/Sparc | |
| parent | ddd2a4556a0b4d0e364de7087ccf1475fa23f39f (diff) | |
| download | external_llvm-6ce7dc2a97260eea5fba414332796464912b9359.zip external_llvm-6ce7dc2a97260eea5fba414332796464912b9359.tar.gz external_llvm-6ce7dc2a97260eea5fba414332796464912b9359.tar.bz2 | |
Properly transfer kill / dead info.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31765 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/Sparc')
| -rw-r--r-- | lib/Target/Sparc/SparcRegisterInfo.cpp | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/lib/Target/Sparc/SparcRegisterInfo.cpp b/lib/Target/Sparc/SparcRegisterInfo.cpp index bd2da73..1eee070 100644 --- a/lib/Target/Sparc/SparcRegisterInfo.cpp +++ b/lib/Target/Sparc/SparcRegisterInfo.cpp @@ -77,15 +77,16 @@ MachineInstr *SparcRegisterInfo::foldMemoryOperand(MachineInstr* MI, unsigned OpNum, int FI) const { bool isFloat = false; + MachineInstr *NewMI = NULL; switch (MI->getOpcode()) { case SP::ORrr: if (MI->getOperand(1).isRegister() && MI->getOperand(1).getReg() == SP::G0&& MI->getOperand(0).isRegister() && MI->getOperand(2).isRegister()) { if (OpNum == 0) // COPY -> STORE - return BuildMI(TII, SP::STri, 3).addFrameIndex(FI).addImm(0) + NewMI = BuildMI(TII, SP::STri, 3).addFrameIndex(FI).addImm(0) .addReg(MI->getOperand(2).getReg()); else // COPY -> LOAD - return BuildMI(TII, SP::LDri, 2, MI->getOperand(0).getReg()) + NewMI = BuildMI(TII, SP::LDri, 2, MI->getOperand(0).getReg()) .addFrameIndex(FI).addImm(0); } break; @@ -94,14 +95,17 @@ MachineInstr *SparcRegisterInfo::foldMemoryOperand(MachineInstr* MI, // FALLTHROUGH case SP::FMOVD: if (OpNum == 0) // COPY -> STORE - return BuildMI(TII, isFloat ? SP::STFri : SP::STDFri, 3) + NewMI = BuildMI(TII, isFloat ? SP::STFri : SP::STDFri, 3) .addFrameIndex(FI).addImm(0).addReg(MI->getOperand(1).getReg()); else // COPY -> LOAD - return BuildMI(TII, isFloat ? SP::LDFri : SP::LDDFri, 2, + NewMI = BuildMI(TII, isFloat ? SP::LDFri : SP::LDDFri, 2, MI->getOperand(0).getReg()).addFrameIndex(FI).addImm(0); break; } - return 0; + + if (NewMI) + NewMI->copyKillDeadInfo(MI); + return NewMI; } const unsigned* SparcRegisterInfo::getCalleeSaveRegs() const { |