[PATCH] D72324: [LV] Still vectorise when tail-folding can't find a primary inducation variable

[Sam Parker via Phabricator via llvm-commits]

samparker added inline comments.


================
Comment at: llvm/lib/Transforms/Vectorize/LoopVectorize.cpp:7538
+                                        LVL.getLAI()) &&
+       Hints.getPredicate() != LoopVectorizeHints::FK_Disabled))
+    return CM_ScalarEpilogueNotNeededUsePredicate;
----------------
If a hint is provided to disable folding, then we shouldn't even look at any of the Prefer stuff, right? So PredicateOptDisabled = (PreferPredicateOverEpilog.getNumOccurrences() && !PreferPredicateOverEpilog) || Hints.getPredicate() == LoopVectorizeHints::FK_Disabled)


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D72324/new/

https://reviews.llvm.org/D72324