diff options
Diffstat (limited to 'llvm/test/Transforms/LoopVectorize/X86')
| -rw-r--r-- | llvm/test/Transforms/LoopVectorize/X86/fneg-cost.ll | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/llvm/test/Transforms/LoopVectorize/X86/fneg-cost.ll b/llvm/test/Transforms/LoopVectorize/X86/fneg-cost.ll new file mode 100644 index 00000000000..65898716742 --- /dev/null +++ b/llvm/test/Transforms/LoopVectorize/X86/fneg-cost.ll @@ -0,0 +1,26 @@ +; NOTE: Assertions have been autogenerated by utils/update_test_checks.py +; RUN: opt %s -loop-vectorize -debug-only=loop-vectorize -S 2>&1 | FileCheck %s +; REQUIRES: asserts + +target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128" +target triple = "x86_64-apple-macosx10.8.0" + +; CHECK: Found an estimated cost of 2 for VF 1 For instruction: %neg = fneg float %{{.*}} +; CHECK: Found an estimated cost of 6 for VF 2 For instruction: %neg = fneg float %{{.*}} +; CHECK: Found an estimated cost of 14 for VF 4 For instruction: %neg = fneg float %{{.*}} +define void @fneg_cost(float* %a, i64 %n) { +entry: + br label %for.body +for.body: ; preds = %for.body.preheader, %for.body + %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ] + %arrayidx = getelementptr inbounds float, float* %a, i64 %indvars.iv + %0 = load float, float* %arrayidx, align 4 + %neg = fneg float %0 + store float %neg, float* %arrayidx, align 4 + %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1 + %cmp = icmp eq i64 %indvars.iv.next, %n + br i1 %cmp, label %for.end, label %for.body + +for.end: + ret void +} |
