[llvm] Allow folding icmp eq (add X, C2), C when there is more than one-use when we can compute the range (PR #144566)

[via llvm-commits]

github-actions[bot] wrote:

<!--LLVM CODE FORMAT COMMENT: {clang-format}-->


:warning: C/C++ code formatter, clang-format found issues in your code. :warning:

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<summary>
You can test this locally with the following command:
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``````````bash
git-clang-format --diff HEAD~1 HEAD --extensions cpp -- llvm/lib/Transforms/InstCombine/InstCombineCompares.cpp
``````````

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<details>
<summary>
View the diff from clang-format here.
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``````````diff
diff --git a/llvm/lib/Transforms/InstCombine/InstCombineCompares.cpp b/llvm/lib/Transforms/InstCombine/InstCombineCompares.cpp
index e6542223d..abad4e005 100644
--- a/llvm/lib/Transforms/InstCombine/InstCombineCompares.cpp
+++ b/llvm/lib/Transforms/InstCombine/InstCombineCompares.cpp
@@ -3184,8 +3184,9 @@ Instruction *InstCombinerImpl::foldICmpAddConstant(ICmpInst &Cmp,
       return new ICmpInst(Pred, X, ConstantInt::get(Ty, NewC));
   }
 
-  if (!Cmp.isEquality() && ICmpInst::isUnsigned(Pred) && Add->hasNoSignedWrap() &&
-      C.isNonNegative() && (C - *C2).isNonNegative() &&
+  if (!Cmp.isEquality() && ICmpInst::isUnsigned(Pred) &&
+      Add->hasNoSignedWrap() && C.isNonNegative() &&
+      (C - *C2).isNonNegative() &&
       computeConstantRange(X, /*ForSigned=*/true).add(*C2).isAllNonNegative())
     return new ICmpInst(ICmpInst::getSignedPredicate(Pred), X,
                         ConstantInt::get(Ty, C - *C2));

``````````

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https://github.com/llvm/llvm-project/pull/144566