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Fix bug: IndVarsSimplify/2003-09-23-NotAtTop.ll

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8689 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2003-09-23 20:26:48 +00:00
parent e1a37cba9c
commit 332ae7f501
1 changed files with 8 additions and 2 deletions
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10
lib/Transforms/Scalar/IndVarSimplify.cpp
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@ -76,8 +76,8 @@ static bool TransformLoop(LoopInfo *Loops, Loop *Loop) {
// indvar. If we don't have one, add one now...
if (!Canonical) {
// Create the PHI node for the new induction variable, and insert the phi
// node at the end of the other phi nodes...
PHINode *PN = new PHINode(Type::UIntTy, "cann-indvar", AfterPHIIt);
// node at the start of the PHI nodes...
PHINode *PN = new PHINode(Type::UIntTy, "cann-indvar", Header->begin());
// Create the increment instruction to add one to the counter...
Instruction *Add = BinaryOperator::create(Instruction::Add, PN,
@ -108,6 +108,12 @@ static bool TransformLoop(LoopInfo *Loops, Loop *Loop) {
Canonical = &IndVars.back();
++NumInserted;
Changed = true;
} else {
// If we have a canonical induction variable, make sure that it is the first
// one in the basic block.
if (&Header->front() != Canonical->Phi)
Header->getInstList().splice(Header->begin(), Header->getInstList(),
Canonical->Phi);
}
DEBUG(std::cerr << "Induction variables:\n");