Don't grab the condition of unconditional branches!
This fixes PR363 llvm-svn: 14076
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@ -442,14 +442,15 @@ Value *Loop::getTripCount() const {
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IV->getIncomingBlock(contains(IV->getIncomingBlock(1)));
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if (BranchInst *BI = dyn_cast<BranchInst>(BackedgeBlock->getTerminator()))
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if (SetCondInst *SCI = dyn_cast<SetCondInst>(BI->getCondition()))
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if (SCI->getOperand(0) == Inc)
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if (BI->getSuccessor(0) == getHeader()) {
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if (SCI->getOpcode() == Instruction::SetNE)
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if (BI->isConditional())
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if (SetCondInst *SCI = dyn_cast<SetCondInst>(BI->getCondition()))
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if (SCI->getOperand(0) == Inc)
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if (BI->getSuccessor(0) == getHeader()) {
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if (SCI->getOpcode() == Instruction::SetNE)
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return SCI->getOperand(1);
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} else if (SCI->getOpcode() == Instruction::SetEQ) {
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return SCI->getOperand(1);
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} else if (SCI->getOpcode() == Instruction::SetEQ) {
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return SCI->getOperand(1);
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}
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}
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return 0;
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}
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