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| 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 | 60ccc3b0ece748b6d0b6bb51ccd1c4e31d334424 (patch) | |
| tree | 9221cd2f2f836e96a99568266799de45298a6bee /lib | |
| parent | af57bdf7d673a3731fb887218e7a9ccd1576ab4f (diff) | |
| download | llvm-60ccc3b0ece748b6d0b6bb51ccd1c4e31d334424.tar.gz llvm-60ccc3b0ece748b6d0b6bb51ccd1c4e31d334424.tar.bz2 llvm-60ccc3b0ece748b6d0b6bb51ccd1c4e31d334424.tar.xz | |
[mips] Fix a bug in MipsLongBranch::replaceBranch, which was erasing
instructions in delay slots along with the original branch instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@191978 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/Target/Mips/MipsLongBranch.cpp | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/lib/Target/Mips/MipsLongBranch.cpp b/lib/Target/Mips/MipsLongBranch.cpp index 971176ec8f..06bb14a383 100644 --- a/lib/Target/Mips/MipsLongBranch.cpp +++ b/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(); } |