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The immediate may be too large for the CMP instruction. Move it into a register

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and use that in the CMP.
<rdar://problem/10305266>

llvm-svn: 142429
This commit is contained in:
Bill Wendling 2011-10-18 21:55:58 +00:00
parent 6110df7008
commit 198609713e
1 changed files with 13 additions and 8 deletions
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21
lib/Target/ARM/ARMISelLowering.cpp
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@ -5760,29 +5760,34 @@ EmitSjLjDispatchBlock(MachineInstr *MI, MachineBasicBlock *MBB) const {
.addFrameIndex(FI)
.addImm(4)
.addMemOperand(FIMMOLd));
AddDefaultPred(BuildMI(DispatchBB, dl, TII->get(ARM::t2CMPri))
.addReg(NewVReg1)
unsigned NewVReg2 = MRI->createVirtualRegister(TRC);
AddDefaultPred(BuildMI(DispatchBB, dl, TII->get(ARM::t2MOVi16), NewVReg2)
.addImm(LPadList.size()));
AddDefaultPred(BuildMI(DispatchBB, dl, TII->get(ARM::t2CMPrr))
.addReg(NewVReg1)
.addReg(NewVReg2));
BuildMI(DispatchBB, dl, TII->get(ARM::t2Bcc))
.addMBB(TrapBB)
.addImm(ARMCC::HI)
.addReg(ARM::CPSR);
unsigned NewVReg2 = MRI->createVirtualRegister(TRC);
AddDefaultPred(BuildMI(DispContBB, dl, TII->get(ARM::t2LEApcrelJT),NewVReg2)
unsigned NewVReg3 = MRI->createVirtualRegister(TRC);
AddDefaultPred(BuildMI(DispContBB, dl, TII->get(ARM::t2LEApcrelJT),NewVReg3)
.addJumpTableIndex(MJTI)
.addImm(UId));
unsigned NewVReg3 = MRI->createVirtualRegister(TRC);
unsigned NewVReg4 = MRI->createVirtualRegister(TRC);
AddDefaultCC(
AddDefaultPred(
BuildMI(DispContBB, dl, TII->get(ARM::t2ADDrs), NewVReg3)
.addReg(NewVReg2, RegState::Kill)
BuildMI(DispContBB, dl, TII->get(ARM::t2ADDrs), NewVReg4)
.addReg(NewVReg3, RegState::Kill)
.addReg(NewVReg1)
.addImm(ARM_AM::getSORegOpc(ARM_AM::lsl, 2))));
BuildMI(DispContBB, dl, TII->get(ARM::t2BR_JT))
.addReg(NewVReg3, RegState::Kill)
.addReg(NewVReg4, RegState::Kill)
.addReg(NewVReg1)
.addJumpTableIndex(MJTI)
.addImm(UId);