[llvm] [InstCombine] Remove redundant alignment assumptions. (PR #123348)

[Florian Hahn via llvm-commits]

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@@ -3245,6 +3246,30 @@ Instruction *InstCombinerImpl::visitCallInst(CallInst &CI) {
         MaybeSimplifyHint(OBU.Inputs[0]);
         MaybeSimplifyHint(OBU.Inputs[1]);
       }
+
+      // Try to fold alignment assumption into a load's !align metadata, if the
+      // assumption is valid in the load's context and remove redundant ones.
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fhahn wrote:

Yeah the comment was left over from a different PR built on top of this one. Removed.

https://github.com/llvm/llvm-project/pull/123348