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| author | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2012-08-20 20:52:03 +0000 |
|---|---|---|
| committer | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2012-08-20 20:52:03 +0000 |
| commit | a0708d1109c2c1a3cf911a4761a10ad69a28455e (patch) | |
| tree | 26f9634d232f8e05f37d1f92072593429161bdcc /lib | |
| parent | df2598871e07fe5eda960c5a461b55eced1e1657 (diff) | |
| download | external_llvm-a0708d1109c2c1a3cf911a4761a10ad69a28455e.zip external_llvm-a0708d1109c2c1a3cf911a4761a10ad69a28455e.tar.gz external_llvm-a0708d1109c2c1a3cf911a4761a10ad69a28455e.tar.bz2 | |
Use a SmallPtrSet to dedup successors in EmitSjLjDispatchBlock.
The test case ARM/2011-05-04-MultipleLandingPadSuccs.ll was creating
duplicate successor list entries.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162222 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/Target/ARM/ARMISelLowering.cpp | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/lib/Target/ARM/ARMISelLowering.cpp b/lib/Target/ARM/ARMISelLowering.cpp index 3974d05..df4039b 100644 --- a/lib/Target/ARM/ARMISelLowering.cpp +++ b/lib/Target/ARM/ARMISelLowering.cpp @@ -6151,13 +6151,12 @@ EmitSjLjDispatchBlock(MachineInstr *MI, MachineBasicBlock *MBB) const { } // Add the jump table entries as successors to the MBB. - MachineBasicBlock *PrevMBB = 0; + SmallPtrSet<MachineBasicBlock*, 8> SeenMBBs; for (std::vector<MachineBasicBlock*>::iterator I = LPadList.begin(), E = LPadList.end(); I != E; ++I) { MachineBasicBlock *CurMBB = *I; - if (PrevMBB != CurMBB) + if (SeenMBBs.insert(CurMBB)) DispContBB->addSuccessor(CurMBB); - PrevMBB = CurMBB; } // N.B. the order the invoke BBs are processed in doesn't matter here. |