[llvm] [VPlan] Simplify (X && Y) || (X && !Y) -> X. (PR #89386)

[Florian Hahn via llvm-commits]

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@@ -940,6 +940,18 @@ static void simplifyRecipe(VPRecipeBase &R, VPTypeAnalysis &TypeInfo) {
 #endif
   }
 
+  VPValue *B;
+  VPValue *C;
+  VPValue *D;
+  // Simplify (X && Y) || (X && !Y) -> X.
+  if (match(&R,
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fhahn wrote:

Could do, but we will also add logic to simplify newly created recipes. Left as is for now.

https://github.com/llvm/llvm-project/pull/89386