diff options
Diffstat (limited to 'llvm/test/Transforms/LoopVectorize')
| -rw-r--r-- | llvm/test/Transforms/LoopVectorize/AArch64/no_vector_instructions.ll | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/llvm/test/Transforms/LoopVectorize/AArch64/no_vector_instructions.ll b/llvm/test/Transforms/LoopVectorize/AArch64/no_vector_instructions.ll new file mode 100644 index 00000000000..a7f414b8694 --- /dev/null +++ b/llvm/test/Transforms/LoopVectorize/AArch64/no_vector_instructions.ll @@ -0,0 +1,26 @@ +; REQUIRES: asserts +; RUN: opt < %s -loop-vectorize -force-vector-interleave=1 -S -debug-only=loop-vectorize 2>&1 | FileCheck %s + +target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128" +target triple = "aarch64--linux-gnu" + +; CHECK-LABEL: all_scalar +; CHECK: LV: Found scalar instruction: %i.next = add nuw nsw i64 %i, 2 +; CHECK: LV: Found an estimated cost of 2 for VF 2 For instruction: %i.next = add nuw nsw i64 %i, 2 +; CHECK: LV: Not considering vector loop of width 2 because it will not generate any vector instructions +; +define void @all_scalar(i64* %a, i64 %n) { +entry: + br label %for.body + +for.body: + %i = phi i64 [ 0, %entry ], [ %i.next, %for.body ] + %tmp0 = getelementptr i64, i64* %a, i64 %i + store i64 0, i64* %tmp0, align 1 + %i.next = add nuw nsw i64 %i, 2 + %cond = icmp eq i64 %i.next, %n + br i1 %cond, label %for.end, label %for.body + +for.end: + ret void +} |
