[llvm-commits] [llvm] r142431 - /llvm/trunk/lib/Target/ARM/ARMISelLowering.cpp
Bill Wendling
isanbard at gmail.com
Tue Oct 18 15:11:18 PDT 2011
Author: void
Date: Tue Oct 18 17:11:18 2011
New Revision: 142431
URL: http://llvm.org/viewvc/llvm-project?rev=142431&view=rev
Log:
The value we're comparing against may be too large for the ARM CMP
instruction. Move the value into a register and then use that for the CMP.
<rdar://problem/10305266>
Modified:
llvm/trunk/lib/Target/ARM/ARMISelLowering.cpp
Modified: llvm/trunk/lib/Target/ARM/ARMISelLowering.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/ARM/ARMISelLowering.cpp?rev=142431&r1=142430&r2=142431&view=diff
==============================================================================
--- llvm/trunk/lib/Target/ARM/ARMISelLowering.cpp (original)
+++ llvm/trunk/lib/Target/ARM/ARMISelLowering.cpp Tue Oct 18 17:11:18 2011
@@ -5849,38 +5849,42 @@
.addFrameIndex(FI)
.addImm(4)
.addMemOperand(FIMMOLd));
- AddDefaultPred(BuildMI(DispatchBB, dl, TII->get(ARM::CMPri))
- .addReg(NewVReg1)
+
+ unsigned NewVReg2 = MRI->createVirtualRegister(TRC);
+ AddDefaultPred(BuildMI(DispatchBB, dl, TII->get(ARM::MOVi16), NewVReg2)
.addImm(LPadList.size()));
+ AddDefaultPred(BuildMI(DispatchBB, dl, TII->get(ARM::CMPrr))
+ .addReg(NewVReg1)
+ .addReg(NewVReg2));
BuildMI(DispatchBB, dl, TII->get(ARM::Bcc))
.addMBB(TrapBB)
.addImm(ARMCC::HI)
.addReg(ARM::CPSR);
- unsigned NewVReg2 = MRI->createVirtualRegister(TRC);
+ unsigned NewVReg3 = MRI->createVirtualRegister(TRC);
AddDefaultCC(
- AddDefaultPred(BuildMI(DispContBB, dl, TII->get(ARM::MOVsi), NewVReg2)
+ AddDefaultPred(BuildMI(DispContBB, dl, TII->get(ARM::MOVsi), NewVReg3)
.addReg(NewVReg1)
.addImm(ARM_AM::getSORegOpc(ARM_AM::lsl, 2))));
- unsigned NewVReg3 = MRI->createVirtualRegister(TRC);
- AddDefaultPred(BuildMI(DispContBB, dl, TII->get(ARM::LEApcrelJT), NewVReg3)
+ unsigned NewVReg4 = MRI->createVirtualRegister(TRC);
+ AddDefaultPred(BuildMI(DispContBB, dl, TII->get(ARM::LEApcrelJT), NewVReg4)
.addJumpTableIndex(MJTI)
.addImm(UId));
MachineMemOperand *JTMMOLd =
MF->getMachineMemOperand(MachinePointerInfo::getJumpTable(),
MachineMemOperand::MOLoad, 4, 4);
- unsigned NewVReg4 = MRI->createVirtualRegister(TRC);
+ unsigned NewVReg5 = MRI->createVirtualRegister(TRC);
AddDefaultPred(
- BuildMI(DispContBB, dl, TII->get(ARM::LDRrs), NewVReg4)
- .addReg(NewVReg2, RegState::Kill)
- .addReg(NewVReg3)
+ BuildMI(DispContBB, dl, TII->get(ARM::LDRrs), NewVReg5)
+ .addReg(NewVReg3, RegState::Kill)
+ .addReg(NewVReg4)
.addImm(0)
.addMemOperand(JTMMOLd));
BuildMI(DispContBB, dl, TII->get(ARM::BR_JTadd))
- .addReg(NewVReg4, RegState::Kill)
- .addReg(NewVReg3)
+ .addReg(NewVReg5, RegState::Kill)
+ .addReg(NewVReg4)
.addJumpTableIndex(MJTI)
.addImm(UId);
}
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