[llvm] InstCombine: sink loads with invariant.load metadata (PR #112692)

[Nikita Popov via llvm-commits]

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@@ -272,3 +272,118 @@ abort:
   call void @abort()
   unreachable
 }
+
+; Loads marked invariant can be sunk across critical edges.
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nikic wrote:

What do critical edges have to do with this? It's about sinking past potential memory writes.

https://github.com/llvm/llvm-project/pull/112692