diff options
| -rw-r--r-- | lib/Transforms/Scalar/IndVarSimplify.cpp | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/lib/Transforms/Scalar/IndVarSimplify.cpp b/lib/Transforms/Scalar/IndVarSimplify.cpp index f0019052d8..01b74815f5 100644 --- a/lib/Transforms/Scalar/IndVarSimplify.cpp +++ b/lib/Transforms/Scalar/IndVarSimplify.cpp @@ -519,8 +519,11 @@ bool IndVarSimplify::runOnLoop(Loop *L, LPPassManager &LPM) { DOUT << "INDVARS: New CanIV: " << *IndVar; if (!isa<SCEVCouldNotCompute>(IterationCount)) { - if (IterationCount->getType() != LargestType) + if (IterationCount->getType()->getPrimitiveSizeInBits() < + LargestType->getPrimitiveSizeInBits()) IterationCount = SCEVZeroExtendExpr::get(IterationCount, LargestType); + else if (IterationCount->getType() != LargestType) + IterationCount = SCEVTruncateExpr::get(IterationCount, LargestType); if (Instruction *DI = LinearFunctionTestReplace(L, IterationCount,Rewriter)) DeadInsts.insert(DI); } |