[llvm] [SCEV] Fix exit condition for recursive loop guard collection (PR #120442)

[Julian Nagele via llvm-commits]

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@@ -15767,7 +15768,7 @@ void ScalarEvolution::LoopGuards::collectFromBlock(
 
     // If we are recursively collecting guards stop after 2
     // predecessors to limit compile-time impact for now.
-    if (Depth > 0 && Terms.size() == 2)
+    if (Depth > 0 && ++NumCollectedConditions == 2)
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juliannagele wrote:

Hm, I think it is actually counting the number of conditions, due to the early continue above, changed the comment instead (and pulled out the increment) :)

https://github.com/llvm/llvm-project/pull/120442