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1; RUN: opt -hotcoldsplit -hotcoldsplit-threshold=-1 -S < %s | FileCheck %s
2
3target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
4target triple = "x86_64-apple-macosx10.14.0"
5
6@c = common global i32 0, align 4
7@h = common global i32 0, align 4
8
9declare void @llvm.lifetime.start.p0i8(i64 immarg, i8* nocapture) #1
10
11declare void @llvm.lifetime.end.p0i8(i64 immarg, i8* nocapture) #1
12
13declare void @llvm.memset.p0i8.i64(i8* nocapture writeonly, i8, i64, i1 immarg) #1
14
15declare i32* @m()
16
17; CHECK-LABEL: define void @main()
18; CHECK-NEXT:   %.sroa.4.i = alloca [20 x i8], align 2
19; CHECK-NEXT:   %.sroa.5.i = alloca [6 x i8], align 8
20; CHECK-NEXT:   %1 = bitcast [6 x i8]* %.sroa.5.i to i8*
21
22define void @main() #0 {
23  %.sroa.4.i = alloca [20 x i8], align 2
24  %.sroa.5.i = alloca [6 x i8], align 8
25  %1 = bitcast [6 x i8]* %.sroa.5.i to i8*
26  %2 = load i32, i32* @h, align 4, !tbaa !4
27  %3 = icmp ne i32 %2, 0
28  br i1 %3, label %12, label %4
29
304:                                                ; preds = %0
31  %5 = call i32* @m() #3
32  %.sroa.4.0..sroa_idx21.i = getelementptr inbounds [20 x i8], [20 x i8]* %.sroa.4.i, i64 0, i64 0
33  call void @llvm.lifetime.start.p0i8(i64 20, i8* %.sroa.4.0..sroa_idx21.i) #3
34  %.sroa.5.0..sroa_idx16.i = getelementptr inbounds [6 x i8], [6 x i8]* %.sroa.5.i, i64 0, i64 0
35  call void @llvm.lifetime.start.p0i8(i64 6, i8* %.sroa.5.0..sroa_idx16.i) #3
36  call void @llvm.memset.p0i8.i64(i8* align 2 %.sroa.4.0..sroa_idx21.i, i8 0, i64 20, i1 false) #3
37  call void @llvm.memset.p0i8.i64(i8* align 8 %.sroa.5.0..sroa_idx16.i, i8 0, i64 6, i1 false) #3
38  %6 = load i32, i32* @c, align 4, !tbaa !4
39  %7 = trunc i32 %6 to i16
40  call void @llvm.lifetime.end.p0i8(i64 20, i8* %.sroa.4.0..sroa_idx21.i) #3
41  call void @llvm.lifetime.end.p0i8(i64 6, i8* %.sroa.5.0..sroa_idx16.i) #3
42  call void @llvm.lifetime.start.p0i8(i64 6, i8* %1) #3
43  call void @llvm.memset.p0i8.i64(i8* align 1 %1, i8 3, i64 6, i1 false)
44  br label %8
45
468:                                                ; preds = %8, %4
47  %.0.i = phi i32 [ 0, %4 ], [ %10, %8 ]
48  %9 = sext i32 %.0.i to i64
49  %10 = add nsw i32 %.0.i, 1
50  %11 = icmp slt i32 %10, 6
51  br i1 %11, label %8, label %l.exit
52
53l.exit:                                           ; preds = %8
54  call void @llvm.lifetime.end.p0i8(i64 6, i8* %1) #3
55  br label %12
56
5712:                                               ; preds = %l.exit, %0
58  %13 = phi i1 [ true, %0 ], [ true, %l.exit ]
59  ret void
60}
61
62attributes #0 = { cold }
63
64!llvm.module.flags = !{!0, !1, !2}
65!llvm.ident = !{!3}
66
67!0 = !{i32 2, !"SDK Version", [2 x i32] [i32 10, i32 14]}
68!1 = !{i32 1, !"wchar_size", i32 4}
69!2 = !{i32 7, !"PIC Level", i32 2}
70!3 = !{!"Apple clang version 11.0.0 (clang-1100.0.20.17)"}
71!4 = !{!5, !5, i64 0}
72!5 = !{!"int", !6, i64 0}
73!6 = !{!"omnipotent char", !7, i64 0}
74!7 = !{!"Simple C/C++ TBAA"}
75