llvm/test/Transforms/LoopVectorize/X86/fneg-cost.ll

; 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 1 for VF 1 For instruction:   %neg = fneg float %{{.*}}
; CHECK: Found an estimated cost of 1 for VF 2 For instruction:   %neg = fneg float %{{.*}}
; CHECK: Found an estimated cost of 1 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
}