diff options
| author | Owen Anderson <resistor@mac.com> | 2011-08-29 17:59:41 +0000 |
|---|---|---|
| committer | Owen Anderson <resistor@mac.com> | 2011-08-29 17:59:41 +0000 |
| commit | 07700d486ec790327723d2a81fe9c66b2fb52016 (patch) | |
| tree | c4d0220f08dea0032e35a0091b6780084fb600ab /lib/Target/ARM/ARMLoadStoreOptimizer.cpp | |
| parent | 9d74909378eb084ab55f407d134fb68f25c803a0 (diff) | |
Update the load-store optimizer for changes to the operands on LDR_PRE_IMM and LDRB_PRE_IMM in r138653.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138746 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/ARM/ARMLoadStoreOptimizer.cpp')
| -rw-r--r-- | lib/Target/ARM/ARMLoadStoreOptimizer.cpp | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/lib/Target/ARM/ARMLoadStoreOptimizer.cpp b/lib/Target/ARM/ARMLoadStoreOptimizer.cpp index 246f6c231e..db3e9f5f29 100644 --- a/lib/Target/ARM/ARMLoadStoreOptimizer.cpp +++ b/lib/Target/ARM/ARMLoadStoreOptimizer.cpp @@ -908,10 +908,16 @@ bool ARMLoadStoreOpt::MergeBaseUpdateLoadStore(MachineBasicBlock &MBB, } else if (isLd) { if (isAM2) { int Offset = ARM_AM::getAM2Opc(AddSub, Bytes, ARM_AM::no_shift); - // LDR_PRE, LDR_POST, - BuildMI(MBB, MBBI, dl, TII->get(NewOpc), MI->getOperand(0).getReg()) - .addReg(Base, RegState::Define) - .addReg(Base).addReg(0).addImm(Offset).addImm(Pred).addReg(PredReg); + // LDR_PRE, LDR_POST + if (NewOpc == ARM::LDR_PRE_IMM || NewOpc == ARM::LDRB_PRE_IMM) { + BuildMI(MBB, MBBI, dl, TII->get(NewOpc), MI->getOperand(0).getReg()) + .addReg(Base, RegState::Define) + .addReg(Base).addImm(Offset).addImm(Pred).addReg(PredReg); + } else { + BuildMI(MBB, MBBI, dl, TII->get(NewOpc), MI->getOperand(0).getReg()) + .addReg(Base, RegState::Define) + .addReg(Base).addReg(0).addImm(Offset).addImm(Pred).addReg(PredReg); + } } else { int Offset = AddSub == ARM_AM::sub ? -Bytes : Bytes; // t2LDR_PRE, t2LDR_POST |