[llvm] 7c68ed8 - [SVE] Reintroduce -scalable-vectorization=preferred as an alias to "on".

[Paul Walker via llvm-commits]

Author: Paul Walker
Date: 2021-12-21T12:54:04Z
New Revision: 7c68ed8892f50ffba2af85b2ddd17ba7526313a3

URL: https://github.com/llvm/llvm-project/commit/7c68ed8892f50ffba2af85b2ddd17ba7526313a3
DIFF: https://github.com/llvm/llvm-project/commit/7c68ed8892f50ffba2af85b2ddd17ba7526313a3.diff

LOG: [SVE] Reintroduce -scalable-vectorization=preferred as an alias to "on".

Some buildbots still rely on the experimental flag, so let's keep
it until everything has been migrated to the new "on by default"
state.

Added: 
    

Modified: 
    llvm/lib/Transforms/Vectorize/LoopVectorizationLegality.cpp

Removed: 
    


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diff  --git a/llvm/lib/Transforms/Vectorize/LoopVectorizationLegality.cpp b/llvm/lib/Transforms/Vectorize/LoopVectorizationLegality.cpp
index 89bfc17d1b82c..81e5aa223c070 100644
--- a/llvm/lib/Transforms/Vectorize/LoopVectorizationLegality.cpp
+++ b/llvm/lib/Transforms/Vectorize/LoopVectorizationLegality.cpp
@@ -64,6 +64,10 @@ static cl::opt<LoopVectorizeHints::ScalableForceKind>
         cl::values(
             clEnumValN(LoopVectorizeHints::SK_FixedWidthOnly, "off",
                        "Scalable vectorization is disabled."),
+            clEnumValN(
+                LoopVectorizeHints::SK_PreferScalable, "preferred",
+                "Scalable vectorization is available and favored when the "
+                "cost is inconclusive."),
             clEnumValN(
                 LoopVectorizeHints::SK_PreferScalable, "on",
                 "Scalable vectorization is available and favored when the "