[llvm] [LV] Vectorize uncountable early exit store loops with combined conditions (PR #205109)

[Sander de Smalen via llvm-commits]

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@@ -4659,6 +4659,61 @@ bool VPlanTransforms::handleUncountableEarlyExits(
     }
   }
 
+  // If we didn't find any, perhaps the exit was combined.
+  if (Exits.empty() && Plan.getExitBlocks().size() == 1) {
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sdesmalen-arm wrote:

This looks a bit fragile. Is it possible to have three conditions where and one of the uncounted exit conditions is merged with the counted exit condition, but the other uncounted exit condition is not?

https://github.com/llvm/llvm-project/pull/205109