[llvm] [RISCV][LoopVectorize] Use DataWithEVL as the preferred tail folding style (PR #148686)

[Luke Lau via llvm-commits]

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@@ -2,9 +2,6 @@
 ; RUN: opt < %s -passes=loop-vectorize -scalable-vectorization=on -riscv-v-vector-bits-min=0 -mtriple riscv64-linux-gnu -mattr=+v,+f -S 2>%t | FileCheck %s -check-prefix=SCALABLE
 ; RUN: opt < %s -passes=loop-vectorize -scalable-vectorization=off -mtriple riscv64-linux-gnu -mattr=+v,+f -S 2>%t | FileCheck %s -check-prefix=FIXEDLEN
 ; RUN: opt < %s -passes=loop-vectorize -scalable-vectorization=on -riscv-v-vector-bits-min=0 -prefer-predicate-over-epilogue=predicate-dont-vectorize -mtriple riscv64-linux-gnu -mattr=+v,+f -S 2>%t | FileCheck %s -check-prefix=TF-SCALABLE
-; RUN: opt < %s -passes=loop-vectorize -scalable-vectorization=off -prefer-predicate-over-epilogue=predicate-dont-vectorize -mtriple riscv64-linux-gnu -mattr=+v,+f -S 2>%t | FileCheck %s -check-prefix=TF-FIXEDLEN
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lukel97 wrote:

I deleted this run line since EVL tail folding doesn't support fixed-length VFs, so this just asserted, and I don't think we really care about testing the `-force-tail-folding-style=data` configuration.

https://github.com/llvm/llvm-project/pull/148686