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fix a nasty iterator invalidation bug from my conversion from 

std::map to DenseMap, exposed on release llvm-gcc bootstrap.

llvm-svn: 85840
This commit is contained in:
Chris Lattner 2009-11-02 23:25:39 +00:00
parent 33ccd9e354
commit b70ef3c8c7
1 changed files with 2 additions and 3 deletions
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5
llvm/lib/Transforms/Scalar/SCCP.cpp
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@ -1079,8 +1079,7 @@ void SCCPSolver::visitShuffleVectorInst(ShuffleVectorInst &I) {
// can turn this into a getelementptr ConstantExpr. // can turn this into a getelementptr ConstantExpr.
// //
void SCCPSolver::visitGetElementPtrInst(GetElementPtrInst &I) { void SCCPSolver::visitGetElementPtrInst(GetElementPtrInst &I) {
LatticeVal &IV = ValueState[&I]; if (ValueState[&I].isOverdefined()) return;
if (IV.isOverdefined()) return;
SmallVector<Constant*, 8> Operands; SmallVector<Constant*, 8> Operands;
Operands.reserve(I.getNumOperands()); Operands.reserve(I.getNumOperands());
@ -1091,7 +1090,7 @@ void SCCPSolver::visitGetElementPtrInst(GetElementPtrInst &I) {
return; // Operands are not resolved yet. return; // Operands are not resolved yet.
if (State.isOverdefined()) if (State.isOverdefined())
return markOverdefined(IV, &I); return markOverdefined(&I);
assert(State.isConstant() && "Unknown state!"); assert(State.isConstant() && "Unknown state!");
Operands.push_back(State.getConstant()); Operands.push_back(State.getConstant());