[llvm] [Reassociate] Use UniformityInfo to group uniform operands together (PR #198507)

[Pankaj Dwivedi via llvm-commits]

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@@ -2543,7 +2571,17 @@ ReassociatePass::BuildPairMap(ReversePostOrderTraversal<Function *> &RPOT) {
   }
 }
 
-PreservedAnalyses ReassociatePass::run(Function &F, FunctionAnalysisManager &) {
+PreservedAnalyses ReassociatePass::run(Function &F,
+                                       FunctionAnalysisManager &AM) {
+  // On targets with branch divergence, obtain UniformityInfo so we can group
+  // uniform operands together in expression trees.
+  UA = nullptr;
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PankajDwivedi-25 wrote:

Fixed

https://github.com/llvm/llvm-project/pull/198507