xref: /llvm-project/llvm/test/Transforms/Inline/parallel-loop-md.ll (revision 151602c7a9935558ca671b35359989b261045db0)
1; RUN: opt -S -passes=inline < %s | FileCheck %s
2; RUN: opt -S -passes='cgscc(inline)' < %s | FileCheck %s
3target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
4target triple = "x86_64-unknown-linux-gnu"
5
6; Function Attrs: norecurse nounwind uwtable
7define void @Body(ptr nocapture %res, ptr nocapture readnone %c, ptr nocapture readonly %d, ptr nocapture readonly %p, i32 %i) #0 {
8entry:
9  %idxprom = sext i32 %i to i64
10  %arrayidx = getelementptr inbounds i32, ptr %p, i64 %idxprom
11  %0 = load i32, ptr %arrayidx, align 4
12  %cmp = icmp eq i32 %0, 0
13  %arrayidx2 = getelementptr inbounds i32, ptr %res, i64 %idxprom
14  %1 = load i32, ptr %arrayidx2, align 4
15  br i1 %cmp, label %cond.end, label %cond.false
16
17cond.false:                                       ; preds = %entry
18  %arrayidx6 = getelementptr inbounds i32, ptr %d, i64 %idxprom
19  %2 = load i32, ptr %arrayidx6, align 4
20  %add = add nsw i32 %2, %1
21  br label %cond.end
22
23cond.end:                                         ; preds = %entry, %cond.false
24  %cond = phi i32 [ %add, %cond.false ], [ %1, %entry ]
25  store i32 %cond, ptr %arrayidx2, align 4
26  ret void
27}
28
29; Function Attrs: nounwind uwtable
30define void @Test(ptr %res, ptr %c, ptr %d, ptr %p, i32 %n) #1 {
31entry:
32  br label %for.cond
33
34for.cond:                                         ; preds = %for.body, %entry
35  %i.0 = phi i32 [ 0, %entry ], [ %inc, %for.body ]
36  %cmp = icmp slt i32 %i.0, 1600
37  br i1 %cmp, label %for.body, label %for.end
38
39for.body:                                         ; preds = %for.cond
40  call void @Body(ptr %res, ptr undef, ptr %d, ptr %p, i32 %i.0), !llvm.access.group !0
41  %inc = add nsw i32 %i.0, 1
42  br label %for.cond, !llvm.loop !1
43
44for.end:                                          ; preds = %for.cond
45  ret void
46}
47
48; CHECK-LABEL: @Test
49; CHECK: load i32,{{.*}}, !llvm.access.group !0
50; CHECK: load i32,{{.*}}, !llvm.access.group !0
51; CHECK: load i32,{{.*}}, !llvm.access.group !0
52; CHECK: store i32{{.*}}, !llvm.access.group !0
53; CHECK: br label %for.cond, !llvm.loop !1
54
55attributes #0 = { norecurse nounwind uwtable }
56
57!0 = distinct !{}
58!1 = distinct !{!0, !{!"llvm.loop.parallel_accesses", !0}}
59