1 ; RUN: opt -S -loop-vectorize -dce -instcombine -force-vector-width=2 -force-vector-unroll=2 < %s | FileCheck %s
6 ; When scalarizing stores we need to preserve the original order.
7 ; Make sure that we are extracting in the correct order (0101, and not 0011).
8 ;CHECK: extractelement <2 x i64> {{.*}}, i32 0
9 ;CHECK: extractelement <2 x i64> {{.*}}, i32 1
10 ;CHECK: extractelement <2 x i64> {{.*}}, i32 0
11 ;CHECK: extractelement <2 x i64> {{.*}}, i32 1
18 define i32 @foo(i32* nocapture %A) {
23 %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ]
24 %0 = shl nsw i64 %indvars.iv, 2
25 %arrayidx = getelementptr inbounds i32* %A, i64 %0
26 store i32 4, i32* %arrayidx, align 4
27 %indvars.iv.next = add i64 %indvars.iv, 1
28 %lftr.wideiv = trunc i64 %indvars.iv.next to i32
29 %exitcond = icmp eq i32 %lftr.wideiv, 10000
30 br i1 %exitcond, label %for.end, label %for.body