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Diffstat (limited to 'lib/Transforms/Scalar/LoopStrengthReduce.cpp')
| -rw-r--r-- | lib/Transforms/Scalar/LoopStrengthReduce.cpp | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/lib/Transforms/Scalar/LoopStrengthReduce.cpp b/lib/Transforms/Scalar/LoopStrengthReduce.cpp index e90b5bcacd..4598df0c42 100644 --- a/lib/Transforms/Scalar/LoopStrengthReduce.cpp +++ b/lib/Transforms/Scalar/LoopStrengthReduce.cpp @@ -3740,6 +3740,9 @@ LSRInstance::LSRInstance(const TargetLowering *tli, Loop *l, Pass *P) OptimizeShadowIV(); OptimizeLoopTermCond(); + // If loop preparation eliminates all interesting IV users, bail. + if (IU.empty()) return; + // Start collecting data and preparing for the solver. CollectInterestingTypesAndFactors(); CollectFixupsAndInitialFormulae(); |