diff options
Diffstat (limited to 'lib/Transforms')
| -rw-r--r-- | lib/Transforms/Scalar/TailRecursionElimination.cpp | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/lib/Transforms/Scalar/TailRecursionElimination.cpp b/lib/Transforms/Scalar/TailRecursionElimination.cpp index a8c2a3a8b7..99c1f10865 100644 --- a/lib/Transforms/Scalar/TailRecursionElimination.cpp +++ b/lib/Transforms/Scalar/TailRecursionElimination.cpp @@ -342,6 +342,7 @@ bool TailCallElim::ProcessReturningBlock(ReturnInst *Ret, BasicBlock *&OldEntry, // constant, return the value returned by the tail call, or that are being // accumulator recursion variable eliminated. if (Ret->getNumOperands() != 0 && Ret->getReturnValue() != CI && + !isa<UndefValue>(Ret->getReturnValue()) && AccumulatorRecursionEliminationInitVal == 0 && !getCommonReturnValue(Ret, CI)) return false; |