diff options
| author | Evan Cheng <evan.cheng@apple.com> | 2009-07-01 01:59:31 +0000 |
|---|---|---|
| committer | Evan Cheng <evan.cheng@apple.com> | 2009-07-01 01:59:31 +0000 |
| commit | 2578ba26e72e36dde64be0f52a2788480aad3378 (patch) | |
| tree | cff0b3ae5b241d3ad9f268cdf515d8cff4f3aada /lib/Target/Sparc/SparcInstrInfo.cpp | |
| parent | 5bcc8bd0c60cfe583ee47852950aad9e532c932e (diff) | |
Handle IMPLICIT_DEF with isUndef operand marker, part 2. This patch moves the code to annotate machineoperands to LiveIntervalAnalysis. It also add markers for implicit_def that define physical registers. The rest, is just a lot of details.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74580 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/Sparc/SparcInstrInfo.cpp')
| -rw-r--r-- | lib/Target/Sparc/SparcInstrInfo.cpp | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/lib/Target/Sparc/SparcInstrInfo.cpp b/lib/Target/Sparc/SparcInstrInfo.cpp index d2f6b9bdcb..12c286af94 100644 --- a/lib/Target/Sparc/SparcInstrInfo.cpp +++ b/lib/Target/Sparc/SparcInstrInfo.cpp @@ -256,17 +256,20 @@ MachineInstr *SparcInstrInfo::foldMemoryOperandImpl(MachineFunction &MF, if (OpNum == 0) { // COPY -> STORE unsigned SrcReg = MI->getOperand(1).getReg(); bool isKill = MI->getOperand(1).isKill(); + bool isUndef = MI->getOperand(1).isUndef(); NewMI = BuildMI(MF, MI->getDebugLoc(), get(isFloat ? SP::STFri : SP::STDFri)) .addFrameIndex(FI) .addImm(0) - .addReg(SrcReg, getKillRegState(isKill)); + .addReg(SrcReg, getKillRegState(isKill) | getUndefRegState(isUndef)); } else { // COPY -> LOAD unsigned DstReg = MI->getOperand(0).getReg(); bool isDead = MI->getOperand(0).isDead(); + bool isUndef = MI->getOperand(0).isUndef(); NewMI = BuildMI(MF, MI->getDebugLoc(), get(isFloat ? SP::LDFri : SP::LDDFri)) - .addReg(DstReg, RegState::Define | getDeadRegState(isDead)) + .addReg(DstReg, RegState::Define | + getDeadRegState(isDead) | getUndefRegState(isUndef)) .addFrameIndex(FI) .addImm(0); } |