[llvm] [InstCombine] Reuse existing freeze when pushing freeze through a binop (PR #202306)

[via llvm-commits]

lijinpei-amd wrote:

Perhaps:
```
diff --git a/llvm/lib/Transforms/InstCombine/InstructionCombining.cpp b/llvm/lib/Transforms/InstCombine/InstructionCombining.cpp
index 608966a5e928..568202d9f892 100644
--- a/llvm/lib/Transforms/InstCombine/InstructionCombining.cpp
+++ b/llvm/lib/Transforms/InstCombine/InstructionCombining.cpp
@@ -5394,6 +5394,10 @@ bool InstCombinerImpl::freezeOtherUses(FreezeInst &FI) {
   });

   for (auto *U : Users) {
+    auto *UI = cast<Instruction>(U);
+    Worklist.pushUsersToWorkList(*UI);
+    Worklist.push(UI);
+
     for (auto &AssumeVH : AC.assumptionsFor(U)) {
       if (!AssumeVH)
         continue;

```

https://github.com/llvm/llvm-project/pull/202306