diff options
| author | Akira Hatanaka <ahatanaka@mips.com> | 2013-10-04 20:51:40 +0000 |
|---|---|---|
| committer | Akira Hatanaka <ahatanaka@mips.com> | 2013-10-04 20:51:40 +0000 |
| commit | 55504b4ac9528324f5aeb6f65e830ca3851d8298 (patch) | |
| tree | 0ceeef6149fab3e26a3d5acc4d5c5a198d7bad9e /llvm/lib/Target/Mips/MipsLongBranch.cpp | |
| parent | 698d4ac8a883446a5f6959ba9b9674b61021a32a (diff) | |
| download | bcm5719-llvm-55504b4ac9528324f5aeb6f65e830ca3851d8298.tar.gz bcm5719-llvm-55504b4ac9528324f5aeb6f65e830ca3851d8298.zip | |
[mips] Fix a bug in MipsLongBranch::replaceBranch, which was erasing
instructions in delay slots along with the original branch instructions.
llvm-svn: 191978
Diffstat (limited to 'llvm/lib/Target/Mips/MipsLongBranch.cpp')
| -rw-r--r-- | llvm/lib/Target/Mips/MipsLongBranch.cpp | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/llvm/lib/Target/Mips/MipsLongBranch.cpp b/llvm/lib/Target/Mips/MipsLongBranch.cpp index 971176ec8fb..06bb14a383c 100644 --- a/llvm/lib/Target/Mips/MipsLongBranch.cpp +++ b/llvm/lib/Target/Mips/MipsLongBranch.cpp @@ -237,6 +237,11 @@ void MipsLongBranch::replaceBranch(MachineBasicBlock &MBB, Iter Br, MIB.addMBB(MBBOpnd); + // Bundle the instruction in the delay slot to the newly created branch + // and erase the original branch. + assert(Br->isBundledWithSucc()); + MachineBasicBlock::instr_iterator II(Br); + MIBundleBuilder(&*MIB).append(llvm::next(II)->removeFromBundle()); Br->eraseFromParent(); } |
