diff options
Diffstat (limited to 'llvm/lib')
| -rw-r--r-- | llvm/lib/Transforms/InstCombine/InstCombineCalls.cpp | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/llvm/lib/Transforms/InstCombine/InstCombineCalls.cpp b/llvm/lib/Transforms/InstCombine/InstCombineCalls.cpp index c1872a1c9ce..fae47ec93b9 100644 --- a/llvm/lib/Transforms/InstCombine/InstCombineCalls.cpp +++ b/llvm/lib/Transforms/InstCombine/InstCombineCalls.cpp @@ -3902,8 +3902,11 @@ Instruction *InstCombiner::visitCallInst(CallInst &CI) { return replaceInstUsesWith(*II, ConstantPointerNull::get(PT)); // isKnownNonNull -> nonnull attribute - if (isKnownNonZero(DerivedPtr, DL, 0, &AC, II, &DT)) + if (!II->hasRetAttr(Attribute::NonNull) && + isKnownNonZero(DerivedPtr, DL, 0, &AC, II, &DT)) { II->addAttribute(AttributeList::ReturnIndex, Attribute::NonNull); + return II; + } } // TODO: bitcast(relocate(p)) -> relocate(bitcast(p)) |
