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| author | Evan Cheng <evan.cheng@apple.com> | 2012-01-07 02:55:54 +0000 |
|---|---|---|
| committer | Evan Cheng <evan.cheng@apple.com> | 2012-01-07 02:55:54 +0000 |
| commit | ccec74738d0fc34f4bc2ac6909324e62705f1c38 (patch) | |
| tree | 0cb3578c4c40603a5a46377ce2e9537ff5a13b2b /lib/Target/ARM/Thumb1FrameLowering.cpp | |
| parent | 45ca7c6336f174fae3a9521d5161a498ca27fd13 (diff) | |
| download | llvm-ccec74738d0fc34f4bc2ac6909324e62705f1c38.tar.gz llvm-ccec74738d0fc34f4bc2ac6909324e62705f1c38.tar.bz2 llvm-ccec74738d0fc34f4bc2ac6909324e62705f1c38.tar.xz | |
Copy implicit defs (e.g. r0) when changing tBX_RET to tPOP_RET. This bug is
exposed with an upcoming change will would delete the copy to return register
because there is no use! It's amazing anything works.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147715 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/ARM/Thumb1FrameLowering.cpp')
| -rw-r--r-- | lib/Target/ARM/Thumb1FrameLowering.cpp | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/lib/Target/ARM/Thumb1FrameLowering.cpp b/lib/Target/ARM/Thumb1FrameLowering.cpp index e171b274de..16c7cbc4a0 100644 --- a/lib/Target/ARM/Thumb1FrameLowering.cpp +++ b/lib/Target/ARM/Thumb1FrameLowering.cpp @@ -350,6 +350,7 @@ restoreCalleeSavedRegisters(MachineBasicBlock &MBB, continue; Reg = ARM::PC; (*MIB).setDesc(TII.get(ARM::tPOP_RET)); + MIB->copyImplicitOps(&*MI); MI = MBB.erase(MI); } MIB.addReg(Reg, getDefRegState(true)); |