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Fix r114632. Return if the only terminator is an unconditional branch after the redundant ones are deleted.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114688 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Evan Cheng 2010-09-23 19:42:03 +00:00
parent 24e6f2f802
commit 676e258366
1 changed files with 5 additions and 3 deletions
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8
lib/Target/ARM/ARMBaseInstrInfo.cpp
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@ -284,9 +284,11 @@ ARMBaseInstrInfo::AnalyzeBranch(MachineBasicBlock &MBB,MachineBasicBlock *&TBB,
LastInst->eraseFromParent();
LastInst = SecondLastInst;
LastOpc = LastInst->getOpcode();
if (I == MBB.begin() || !isUnpredicatedTerminator(--I))
break;
else {
if (I == MBB.begin() || !isUnpredicatedTerminator(--I)) {
// Return now the only terminator is an unconditional branch.
TBB = LastInst->getOperand(0).getMBB();
return false;
} else {
SecondLastInst = I;
SecondLastOpc = SecondLastInst->getOpcode();
}