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| author | Evan Cheng <evan.cheng@apple.com> | 2009-08-07 19:34:35 +0000 |
|---|---|---|
| committer | Evan Cheng <evan.cheng@apple.com> | 2009-08-07 19:34:35 +0000 |
| commit | e118cb614643c568716ee612366cae4c365a8aa3 (patch) | |
| tree | bec41f8d4849d414cb62d6143f54ffa8293987ef | |
| parent | 1d2426c4701650846922d312eb742cc55385c721 (diff) | |
| download | llvm-e118cb614643c568716ee612366cae4c365a8aa3.tar.gz llvm-e118cb614643c568716ee612366cae4c365a8aa3.tar.bz2 llvm-e118cb614643c568716ee612366cae4c365a8aa3.tar.xz | |
Use 16-bit tMOVgpr2gpr instead of tMOVr to copy GPR registers in Thumb2 mode.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78398 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | lib/Target/ARM/README-Thumb2.txt | 2 | ||||
| -rw-r--r-- | lib/Target/ARM/Thumb2InstrInfo.cpp | 7 |
2 files changed, 1 insertions, 8 deletions
diff --git a/lib/Target/ARM/README-Thumb2.txt b/lib/Target/ARM/README-Thumb2.txt index 48b5278122..6a51e7ce82 100644 --- a/lib/Target/ARM/README-Thumb2.txt +++ b/lib/Target/ARM/README-Thumb2.txt @@ -3,5 +3,3 @@ //===---------------------------------------------------------------------===// We should be using ADD / SUB rd, sp, rm <shift> instructions. - -copyRegToReg should use tMOVgpr2gpr instead of t2MOVr? diff --git a/lib/Target/ARM/Thumb2InstrInfo.cpp b/lib/Target/ARM/Thumb2InstrInfo.cpp index 2b329e03db..783e65053b 100644 --- a/lib/Target/ARM/Thumb2InstrInfo.cpp +++ b/lib/Target/ARM/Thumb2InstrInfo.cpp @@ -65,12 +65,7 @@ Thumb2InstrInfo::copyRegToReg(MachineBasicBlock &MBB, if (DestRC == ARM::GPRRegisterClass && SrcRC == ARM::GPRRegisterClass) { - // FIXME: Just use tMOVgpr2gpr since it's shorter? - if (SrcReg == ARM::SP || DestReg == ARM::SP) - BuildMI(MBB, I, DL, get(ARM::tMOVgpr2gpr), DestReg).addReg(SrcReg); - else - AddDefaultCC(AddDefaultPred(BuildMI(MBB, I, DL, get(ARM::t2MOVr), - DestReg).addReg(SrcReg))); + BuildMI(MBB, I, DL, get(ARM::tMOVgpr2gpr), DestReg).addReg(SrcReg); return true; } else if (DestRC == ARM::GPRRegisterClass && SrcRC == ARM::tGPRRegisterClass) { |