diff options
Diffstat (limited to 'llvm/lib/Transforms')
| -rw-r--r-- | llvm/lib/Transforms/InstCombine/InstCombineCompares.cpp | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/llvm/lib/Transforms/InstCombine/InstCombineCompares.cpp b/llvm/lib/Transforms/InstCombine/InstCombineCompares.cpp index e0a1083b927..4b5891461bc 100644 --- a/llvm/lib/Transforms/InstCombine/InstCombineCompares.cpp +++ b/llvm/lib/Transforms/InstCombine/InstCombineCompares.cpp @@ -2337,6 +2337,9 @@ Instruction *InstCombiner::foldICmpAddConstant(ICmpInst &Cmp, Type *Ty = Add->getType(); CmpInst::Predicate Pred = Cmp.getPredicate(); + if (!Add->hasOneUse()) + return nullptr; + // If the add does not wrap, we can always adjust the compare by subtracting // the constants. Equality comparisons are handled elsewhere. SGE/SLE/UGE/ULE // are canonicalized to SGT/SLT/UGT/ULT. @@ -2370,9 +2373,6 @@ Instruction *InstCombiner::foldICmpAddConstant(ICmpInst &Cmp, return new ICmpInst(ICmpInst::ICMP_UGE, X, ConstantInt::get(Ty, Lower)); } - if (!Add->hasOneUse()) - return nullptr; - // X+C <u C2 -> (X & -C2) == C // iff C & (C2-1) == 0 // C2 is a power of 2 |
