1 ; RUN: opt < %s -loop-vectorize -force-vector-unroll=1 -vectorizer-min-trip-count=1 -force-vector-width=4 -dce -instcombine -S | FileCheck %s 2 3 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" 4 target triple = "x86_64-unknown-linux-gnu" 5 6 ; CHECK: <4 x float> 7 define void @trivial_loop(float* nocapture %a) nounwind uwtable optsize { 8 entry: 9 br label %for.body 10 11 for.body: ; preds = %for.body, %entry 12 %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ] 13 %arrayidx = getelementptr inbounds float* %a, i64 %indvars.iv 14 %0 = load float* %arrayidx, align 4 15 %add = fadd float %0, 1.000000e+00 16 store float %add, float* %arrayidx, align 4 17 %indvars.iv.next = add i64 %indvars.iv, 1 18 %lftr.wideiv = trunc i64 %indvars.iv.next to i32 19 %exitcond = icmp eq i32 %lftr.wideiv, 8 20 br i1 %exitcond, label %for.end, label %for.body 21 22 for.end: ; preds = %for.body 23 ret void 24 } 25
