1; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mcpu=x86-64 | FileCheck %s
2
3define void @merge_store(i32* nocapture %a) {
4; CHECK-LABEL: merge_store:
5; CHECK: movq
6; CHECK: movq
7entry:
8  br label %for.body
9
10  for.body:
11  %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ]
12  %arrayidx = getelementptr inbounds i32* %a, i64 %indvars.iv
13  store i32 1, i32* %arrayidx, align 4
14  %0 = or i64 %indvars.iv, 1
15  %arrayidx2 = getelementptr inbounds i32* %a, i64 %0
16  store i32 1, i32* %arrayidx2, align 4
17  %1 = or i64 %indvars.iv, 2
18  %arrayidx5 = getelementptr inbounds i32* %a, i64 %1
19  store i32 1, i32* %arrayidx5, align 4
20  %2 = or i64 %indvars.iv, 3
21  %arrayidx8 = getelementptr inbounds i32* %a, i64 %2
22  store i32 1, i32* %arrayidx8, align 4
23  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 4
24  %3 = trunc i64 %indvars.iv.next to i32
25  %cmp = icmp slt i32 %3, 1000
26  br i1 %cmp, label %for.body, label %for.end
27
28  for.end:
29  ret void
30}
31