[llvm] [CodeGenPrepare] Handle address sinking obtained from invoke (PR #143566)

[via llvm-commits]

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@@ -6099,6 +6099,13 @@ bool CodeGenPrepare::optimizeMemoryInst(Instruction *MemoryInst, Value *Addr,
       }
 
       if (!ResultIndex) {
+        auto PtrInst = dyn_cast<Instruction>(ResultPtr);
+        // Here we know that we have just a pointer without any offsets.  If
+        // this pointer comes from a different from the current basic block we
+        // need to know how to recreate it in another basic block.
+        // Currently we don't support recreation of any of instruction.
+        if (PtrInst && PtrInst->getParent() != MemoryInst->getParent())
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weiguozhi wrote:

I prefer this condition. We should not modify a memory access instruction with pointer comes from argument or global value directly.

https://github.com/llvm/llvm-project/pull/143566