[llvm-branch-commits] [llvm] [LV] -scalable-vectorization=preferred should not override UserVF=1 (PR #226948)

[Sander de Smalen via llvm-branch-commits]

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@@ -128,6 +128,10 @@ LoopVectorizeHints::LoopVectorizeHints(const Loop *L,
         ForceScalableHint == SK_FixedWidthOnly)
       return ForceScalableHint;
 
+    // Then to -scalable-vectorization=on
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sdesmalen-arm wrote:

IMO, a loop with `#pragma clang loop vectorize(disable)` also shouldn't be vectorized with a scalable VF when using `-scalable-vectorization=always`.

https://github.com/llvm/llvm-project/pull/226948