1 ; RUN: opt -S -basicaa -loop-vectorize < %s | FileCheck %s 2 target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128" 3 target triple = "x86_64-apple-macosx10.11.0" 4 5 define i32 @accum(i32* nocapture readonly %x, i32 %N) #0 { 6 entry: 7 ; CHECK-LABEL: @accum 8 ; CHECK-NOT: x i32> 9 10 %cmp1 = icmp sgt i32 %N, 0 11 br i1 %cmp1, label %for.inc.preheader, label %for.end 12 13 for.inc.preheader: 14 br label %for.inc 15 16 for.inc: 17 %indvars.iv = phi i64 [ %indvars.iv.next, %for.inc ], [ 0, %for.inc.preheader ] 18 %sum.02 = phi i32 [ %add, %for.inc ], [ 0, %for.inc.preheader ] 19 %arrayidx = getelementptr inbounds i32, i32* %x, i64 %indvars.iv 20 %0 = load i32, i32* %arrayidx, align 4 21 %add = add nsw i32 %0, %sum.02 22 %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1 23 %lftr.wideiv = trunc i64 %indvars.iv.next to i32 24 %exitcond = icmp eq i32 %lftr.wideiv, %N 25 br i1 %exitcond, label %for.end.loopexit, label %for.inc 26 27 for.end.loopexit: 28 %add.lcssa = phi i32 [ %add, %for.inc ] 29 br label %for.end 30 31 for.end: 32 %sum.0.lcssa = phi i32 [ 0, %entry ], [ %add.lcssa, %for.end.loopexit ] 33 ret i32 %sum.0.lcssa 34 35 ; CHECK: ret i32 36 } 37 38 attributes #0 = { "target-cpu"="core2" "target-features"="+sse,-avx,-avx2,-sse2" } 39 40
