test/Transforms/LoopVectorize/X86/fp_to_sint8-cost-model.ll


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; RUN: opt < %s  -loop-vectorize -mtriple=x86_64-apple-macosx10.8.0 -mcpu=corei7-avx -S -debug-only=loop-vectorize 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: cost of 7 for VF 8 For instruction:   %conv = fptosi float %tmp to i8
define void @float_to_sint8_cost(i8* noalias nocapture %a, float* noalias nocapture readonly %b) nounwind {
entry:
  br label %for.body
for.body:
  %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ]
  %arrayidx = getelementptr inbounds float* %b, i64 %indvars.iv
  %tmp = load float* %arrayidx, align 4
  %conv = fptosi float %tmp to i8
  %arrayidx2 = getelementptr inbounds i8* %a, i64 %indvars.iv
  store i8 %conv, i8* %arrayidx2, align 4
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %exitcond = icmp eq i64 %indvars.iv.next, 256
  br i1 %exitcond, label %for.end, label %for.body

for.end:
  ret void
}