[llvm] [InstCombine] Simplify compare abs(X) and X. (PR #76385)

[Yingwei Zheng via llvm-commits]

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@@ -7109,6 +7109,47 @@ Instruction *InstCombinerImpl::visitICmpInst(ICmpInst &I) {
     }
   }
 
+  {
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dtcxzyw wrote:

Describe the transform in the header comments.


https://github.com/llvm/llvm-project/pull/76385