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author | Anton Korobeynikov <asl@math.spbu.ru> | 2009-07-16 23:26:06 +0000 |
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committer | Anton Korobeynikov <asl@math.spbu.ru> | 2009-07-16 23:26:06 +0000 |
commit | b8e9ac834a9c253e3f8f5caa8f229bafba0b4fcf (patch) | |
tree | a2469a5504599ca629811636fb79cf2886441435 /lib/Target/ARM/Thumb2InstrInfo.cpp | |
parent | 2df5e554e262c9c2b31b401387fee8678d16cec2 (diff) | |
download | llvm-b8e9ac834a9c253e3f8f5caa8f229bafba0b4fcf.tar.gz llvm-b8e9ac834a9c253e3f8f5caa8f229bafba0b4fcf.tar.bz2 llvm-b8e9ac834a9c253e3f8f5caa8f229bafba0b4fcf.tar.xz |
Emit cross regclass register moves for thumb2.
Minor code duplication cleanup.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76124 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/ARM/Thumb2InstrInfo.cpp')
-rw-r--r-- | lib/Target/ARM/Thumb2InstrInfo.cpp | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/lib/Target/ARM/Thumb2InstrInfo.cpp b/lib/Target/ARM/Thumb2InstrInfo.cpp index 6103463e87..081cf4f550 100644 --- a/lib/Target/ARM/Thumb2InstrInfo.cpp +++ b/lib/Target/ARM/Thumb2InstrInfo.cpp @@ -87,3 +87,24 @@ Thumb2InstrInfo::BlockHasNoFallThrough(const MachineBasicBlock &MBB) const { return false; } + +bool +Thumb2InstrInfo::copyRegToReg(MachineBasicBlock &MBB, + MachineBasicBlock::iterator I, + unsigned DestReg, unsigned SrcReg, + const TargetRegisterClass *DestRC, + const TargetRegisterClass *SrcRC) const { + DebugLoc DL = DebugLoc::getUnknownLoc(); + if (I != MBB.end()) DL = I->getDebugLoc(); + + if ((DestRC == ARM::GPRRegisterClass && + SrcRC == ARM::tGPRRegisterClass) || + (DestRC == ARM::tGPRRegisterClass && + SrcRC == ARM::GPRRegisterClass)) { + AddDefaultCC(AddDefaultPred(BuildMI(MBB, I, DL, get(getOpcode(ARMII::MOVr)), + DestReg).addReg(SrcReg))); + return true; + } + + return ARMBaseInstrInfo::copyRegToReg(MBB, I, DestReg, SrcReg, DestRC, SrcRC); +} |