diff options
Diffstat (limited to 'lib/Transforms/InstCombine/InstCombineCasts.cpp')
| -rw-r--r-- | lib/Transforms/InstCombine/InstCombineCasts.cpp | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/lib/Transforms/InstCombine/InstCombineCasts.cpp b/lib/Transforms/InstCombine/InstCombineCasts.cpp index 5dd6fe5e27..32ab123f10 100644 --- a/lib/Transforms/InstCombine/InstCombineCasts.cpp +++ b/lib/Transforms/InstCombine/InstCombineCasts.cpp @@ -883,8 +883,8 @@ Instruction *InstCombiner::transformSExtICmp(ICmpInst *ICI, Instruction &CI) { ICmpInst::Predicate Pred = ICI->getPredicate(); if (ConstantInt *Op1C = dyn_cast<ConstantInt>(Op1)) { - // (x <s 0) ? -1 : 0 -> ashr x, 31 -> all ones if signed - // (x >s -1) ? -1 : 0 -> ashr x, 31 -> all ones if not signed + // (x <s 0) ? -1 : 0 -> ashr x, 31 -> all ones if negative + // (x >s -1) ? -1 : 0 -> not (ashr x, 31) -> all ones if positive if ((Pred == ICmpInst::ICMP_SLT && Op1C->isZero()) || (Pred == ICmpInst::ICMP_SGT && Op1C->isAllOnesValue())) { |