[PATCH] D28907: [SLP] Fix for PR30787: Failure to beneficially vectorize 'copyable' elements in integer binary ops.

[Dinar Temirbulatov via Phabricator via llvm-commits]

dtemirbulatov added inline comments.


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Comment at: lib/Transforms/Vectorize/SLPVectorizer.cpp:3729
+      }
+    // Check inner vector dependencies
+    for (Instruction *I1 : Alternatives)
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I have observed some syntectic testcases where we could have cycle dependencies formed, I am sure without this check we could hit the issue somehow.


https://reviews.llvm.org/D28907