[PATCH] D129843: [AArch64][NFC] Simplify loop vectoriser tail-folding tests

[David Sherwood via Phabricator via llvm-commits]

david-arm created this revision.
david-arm added reviewers: sdesmalen, kmclaughlin, RosieSumpter.
Herald added subscribers: ctetreau, zzheng, kristof.beyls.
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david-arm requested review of this revision.
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I've simplified all of the SVE vectoriser tail-folding tests to
only care about testing the flag:

  -prefer-predicate-over-epiloge=predicate-else-scalar-epilogue

In practice we always want to fall back on unpredicated vector
loops if tail-folding is not possible.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D129843

Files:
  llvm/test/Transforms/LoopVectorize/AArch64/scalable-reductions-tf.ll
  llvm/test/Transforms/LoopVectorize/AArch64/sve-tail-folding-cost.ll
  llvm/test/Transforms/LoopVectorize/AArch64/sve-tail-folding-unroll.ll
  llvm/test/Transforms/LoopVectorize/AArch64/sve-tail-folding.ll


Index: llvm/test/Transforms/LoopVectorize/AArch64/sve-tail-folding.ll
===================================================================
--- llvm/test/Transforms/LoopVectorize/AArch64/sve-tail-folding.ll
+++ llvm/test/Transforms/LoopVectorize/AArch64/sve-tail-folding.ll
@@ -1,4 +1,3 @@
-; RUN: opt -S -hints-allow-reordering=false -loop-vectorize -prefer-predicate-over-epilogue=predicate-dont-vectorize -prefer-inloop-reductions < %s | FileCheck %s
 ; RUN: opt -S -hints-allow-reordering=false -loop-vectorize -prefer-predicate-over-epilogue=predicate-else-scalar-epilogue -prefer-inloop-reductions < %s | FileCheck %s
 
 target triple = "aarch64-unknown-linux-gnu"
Index: llvm/test/Transforms/LoopVectorize/AArch64/sve-tail-folding-unroll.ll
===================================================================
--- llvm/test/Transforms/LoopVectorize/AArch64/sve-tail-folding-unroll.ll
+++ llvm/test/Transforms/LoopVectorize/AArch64/sve-tail-folding-unroll.ll
@@ -1,4 +1,3 @@
-; RUN: opt -S -loop-vectorize -prefer-predicate-over-epilogue=predicate-dont-vectorize -force-vector-interleave=4 -force-vector-width=4 < %s | FileCheck %s
 ; RUN: opt -S -loop-vectorize -prefer-predicate-over-epilogue=predicate-else-scalar-epilogue -force-vector-interleave=4 -force-vector-width=4 < %s | FileCheck %s
 
 target triple = "aarch64-unknown-linux-gnu"
Index: llvm/test/Transforms/LoopVectorize/AArch64/sve-tail-folding-cost.ll
===================================================================
--- llvm/test/Transforms/LoopVectorize/AArch64/sve-tail-folding-cost.ll
+++ llvm/test/Transforms/LoopVectorize/AArch64/sve-tail-folding-cost.ll
@@ -1,4 +1,4 @@
-; RUN: opt -S -loop-vectorize -prefer-predicate-over-epilogue=predicate-dont-vectorize <%s | FileCheck %s
+; RUN: opt -S -loop-vectorize -prefer-predicate-over-epilogue=predicate-else-scalar-epilogue <%s | FileCheck %s
 
 target triple = "aarch64-unknown-linux-gnu"
 
Index: llvm/test/Transforms/LoopVectorize/AArch64/scalable-reductions-tf.ll
===================================================================
--- llvm/test/Transforms/LoopVectorize/AArch64/scalable-reductions-tf.ll
+++ llvm/test/Transforms/LoopVectorize/AArch64/scalable-reductions-tf.ll
@@ -1,4 +1,4 @@
-; RUN: opt < %s -loop-vectorize -prefer-predicate-over-epilogue=predicate-dont-vectorize \
+; RUN: opt < %s -loop-vectorize -prefer-predicate-over-epilogue=predicate-else-scalar-epilogue \
 ; RUN:   -mtriple aarch64-unknown-linux-gnu -mattr=+sve -S | FileCheck %s
 
 define void @invariant_store_red_exit_is_phi(i32* %dst, i32* readonly %src, i64 %n) {


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