1 ; RUN: opt -passes=simplifycfg -simplifycfg-require-and-preserve-domtree=1 -S < %s | FileCheck %s
2 target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
3 target triple = "x86_64-unknown-linux-gnu"
5 ; Function Attrs: norecurse nounwind uwtable
6 define void @Test(ptr nocapture %res, ptr nocapture readnone %c, ptr nocapture readonly %d, ptr nocapture readonly %p) #0 {
11 ; CHECK: load i32, ptr {{.*}}, align 4, !llvm.access.group !0
12 ; CHECK: load i32, ptr {{.*}}, align 4, !llvm.access.group !0
13 ; CHECK: store i32 {{.*}}, align 4, !llvm.access.group !0
17 for.body: ; preds = %cond.end, %entry
18 %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %cond.end ]
19 %arrayidx = getelementptr inbounds i32, ptr %p, i64 %indvars.iv
20 %0 = load i32, ptr %arrayidx, align 4, !llvm.access.group !10
21 %cmp1 = icmp eq i32 %0, 0
22 br i1 %cmp1, label %cond.true, label %cond.false
24 cond.false: ; preds = %for.body
25 %arrayidx3 = getelementptr inbounds i32, ptr %res, i64 %indvars.iv
26 %v = load i32, ptr %arrayidx3, align 4, !llvm.access.group !10
27 %arrayidx7 = getelementptr inbounds i32, ptr %d, i64 %indvars.iv
28 %1 = load i32, ptr %arrayidx7, align 4, !llvm.access.group !10
29 %add = add nsw i32 %1, %v
32 cond.true: ; preds = %for.body
33 %arrayidx4 = getelementptr inbounds i32, ptr %res, i64 %indvars.iv
34 %w = load i32, ptr %arrayidx4, align 4, !llvm.access.group !10
35 %arrayidx8 = getelementptr inbounds i32, ptr %d, i64 %indvars.iv
36 %2 = load i32, ptr %arrayidx8, align 4, !llvm.access.group !10
37 %add2 = add nsw i32 %2, %w
40 cond.end: ; preds = %for.body, %cond.false
41 %cond = phi i32 [ %add, %cond.false ], [ %add2, %cond.true ]
42 %arrayidx9 = getelementptr inbounds i32, ptr %res, i64 %indvars.iv
43 store i32 %cond, ptr %arrayidx9, align 4, !llvm.access.group !10
44 %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
45 %exitcond = icmp eq i64 %indvars.iv.next, 16
46 br i1 %exitcond, label %for.end, label %for.body, !llvm.loop !0
48 for.end: ; preds = %cond.end
52 attributes #0 = { norecurse nounwind uwtable }
54 !0 = distinct !{!0, !1, !{!"llvm.loop.parallel_accesses", !10}}
55 !1 = !{!"llvm.loop.vectorize.enable", i1 true}