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Combine the code to build VLDM and VSTM instructions, since they are

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mostly the same.

llvm-svn: 98402
This commit is contained in:
Bob Wilson 2010-03-13 00:43:32 +00:00
parent 882e43e3cc
commit 99388e001e
1 changed files with 14 additions and 16 deletions
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30
lib/Target/ARM/ARMLoadStoreOptimizer.cpp
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@ -697,15 +697,19 @@ bool ARMLoadStoreOpt::MergeBaseUpdateLoadStore(MachineBasicBlock &MBB,
Offset = ARM_AM::getAM2Opc(AddSub, Bytes, ARM_AM::no_shift);
else
Offset = AddSub == ARM_AM::sub ? -Bytes : Bytes;
if (isLd) {
if (isAM5)
// VLDMS, VLDMD
BuildMI(MBB, MBBI, dl, TII->get(NewOpc))
.addReg(Base, getKillRegState(BaseKill))
.addImm(Offset).addImm(Pred).addReg(PredReg)
.addReg(Base, getDefRegState(true)) // WB base register
.addReg(MI->getOperand(0).getReg(), RegState::Define);
else if (isAM2)
if (isAM5) {
// VLDM[SD}, VSTM[SD]
MachineOperand &MO = MI->getOperand(0);
BuildMI(MBB, MBBI, dl, TII->get(NewOpc))
.addReg(Base, getKillRegState(isLd ? BaseKill : false))
.addImm(Offset)
.addImm(Pred).addReg(PredReg)
.addReg(Base, getDefRegState(true)) // WB base register
.addReg(MO.getReg(), (isLd ? getDefRegState(true) :
getKillRegState(MO.isKill())));
} else if (isLd) {
if (isAM2)
// LDR_PRE, LDR_POST,
BuildMI(MBB, MBBI, dl, TII->get(NewOpc), MI->getOperand(0).getReg())
.addReg(Base, RegState::Define)
@ -717,13 +721,7 @@ bool ARMLoadStoreOpt::MergeBaseUpdateLoadStore(MachineBasicBlock &MBB,
.addReg(Base).addImm(Offset).addImm(Pred).addReg(PredReg);
} else {
MachineOperand &MO = MI->getOperand(0);
if (isAM5)
// VSTMS, VSTMD
BuildMI(MBB, MBBI, dl, TII->get(NewOpc)).addReg(Base).addImm(Offset)
.addImm(Pred).addReg(PredReg)
.addReg(Base, getDefRegState(true)) // WB base register
.addReg(MO.getReg(), getKillRegState(MO.isKill()));
else if (isAM2)
if (isAM2)
// STR_PRE, STR_POST
BuildMI(MBB, MBBI, dl, TII->get(NewOpc), Base)
.addReg(MO.getReg(), getKillRegState(MO.isKill()))