diff options
| author | Jim Grosbach <grosbach@apple.com> | 2011-07-08 21:50:04 +0000 |
|---|---|---|
| committer | Jim Grosbach <grosbach@apple.com> | 2011-07-08 21:50:04 +0000 |
| commit | 25e6d48220330d17875d0ae0ad6a45597d5ac36c (patch) | |
| tree | 8f7e096da2b668fba274d022dd445c9a79b9e144 /lib/Target/ARM/Thumb1FrameLowering.cpp | |
| parent | f29608267baf911ccff7015327839201bd1de529 (diff) | |
Make tBX_RET and tBX_RET_vararg predicable.
The normal tBX instruction is predicable, so there's no reason the
pseudos for using it as a return shouldn't be. Gives us some nice code-gen
improvements as can be seen by the test changes. In particular, several
tests now have to disable if-conversion because it works too well and defeats
the test.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134746 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/ARM/Thumb1FrameLowering.cpp')
| -rw-r--r-- | lib/Target/ARM/Thumb1FrameLowering.cpp | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/lib/Target/ARM/Thumb1FrameLowering.cpp b/lib/Target/ARM/Thumb1FrameLowering.cpp index 48211d852f..c258870e48 100644 --- a/lib/Target/ARM/Thumb1FrameLowering.cpp +++ b/lib/Target/ARM/Thumb1FrameLowering.cpp @@ -273,8 +273,8 @@ void Thumb1FrameLowering::emitEpilogue(MachineFunction &MF, emitSPUpdate(MBB, MBBI, TII, dl, *RegInfo, VARegSaveSize); - BuildMI(MBB, MBBI, dl, TII.get(ARM::tBX_RET_vararg)) - .addReg(ARM::R3, RegState::Kill); + AddDefaultPred(BuildMI(MBB, MBBI, dl, TII.get(ARM::tBX_RET_vararg)) + .addReg(ARM::R3, RegState::Kill)); // erase the old tBX_RET instruction MBB.erase(MBBI); } |