diff options
Diffstat (limited to 'lib/Transforms/Scalar/Reassociate.cpp')
| -rw-r--r-- | lib/Transforms/Scalar/Reassociate.cpp | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/lib/Transforms/Scalar/Reassociate.cpp b/lib/Transforms/Scalar/Reassociate.cpp index 564036bba3..f2a8633f97 100644 --- a/lib/Transforms/Scalar/Reassociate.cpp +++ b/lib/Transforms/Scalar/Reassociate.cpp @@ -932,6 +932,10 @@ void Reassociate::ReassociateBB(BasicBlock *BB) { if (BI->getOpcode() == Instruction::Sub) { if (ShouldBreakUpSubtract(BI)) { BI = BreakUpSubtract(BI, ValueRankMap); + // Reset the BBI iterator in case BreakUpSubtract changed the + // instruction it points to. + BBI = BI; + ++BBI; MadeChange = true; } else if (BinaryOperator::isNeg(BI)) { // Otherwise, this is a negation. See if the operand is a multiply tree |