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1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
2; RUN: opt < %s -loop-rotate -S | FileCheck %s
3
4define dso_local i16 @main() local_unnamed_addr #0 !dbg !7 {
5; CHECK-LABEL: @main(
6; CHECK-NEXT:  entry:
7; CHECK-NEXT:    call void @llvm.dbg.value(metadata i16 9, metadata !12, metadata !DIExpression()), !dbg !13
8; CHECK-NEXT:    br label [[BB2:%.*]], !dbg !14
9; CHECK:       bb2:
10; CHECK-NEXT:    [[TMP1:%.*]] = phi i16 [ 9, [[ENTRY:%.*]] ], [ [[TMP5:%.*]], [[BB2]] ]
11; CHECK-NEXT:    call void @llvm.dbg.value(metadata i16 [[TMP1]], metadata !12, metadata !DIExpression()), !dbg !13
12; CHECK-NEXT:    [[TMP4:%.*]] = call i16 @wibble(i16 [[TMP1]]), !dbg !14
13; CHECK-NEXT:    [[TMP5]] = add nsw i16 [[TMP4]], [[TMP1]], !dbg !14
14; CHECK-NEXT:    call void @llvm.dbg.value(metadata i16 [[TMP5]], metadata !12, metadata !DIExpression()), !dbg !13
15; CHECK-NEXT:    [[TMP6:%.*]] = call i16 @wibble(i16 [[TMP4]]), !dbg !14
16; CHECK-NEXT:    [[TMP7:%.*]] = mul nsw i16 [[TMP6]], 3, !dbg !14
17; CHECK-NEXT:    [[TMP8:%.*]] = call i16 @wibble(i16 [[TMP7]]), !dbg !14
18; CHECK-NEXT:    [[TMP2:%.*]] = icmp slt i16 [[TMP5]], 17, !dbg !14
19; CHECK-NEXT:    br i1 [[TMP2]], label [[BB2]], label [[BB3:%.*]], !dbg !14
20; CHECK:       bb3:
21; CHECK-NEXT:    [[TMP10:%.*]] = call i16 @wibble(i16 8), !dbg !14
22; CHECK-NEXT:    ret i16 [[TMP10]], !dbg !14
23;
24entry:
25  call void @llvm.dbg.value(metadata i16 9, metadata !12, metadata !DIExpression()), !dbg !13
26  br label %bb1, !dbg !14
27
28bb1:
29  %tmp = phi i16 [ 9, %entry ], [ %tmp5, %bb2 ], !dbg !13
30  call void @llvm.dbg.value(metadata i16 %tmp, metadata !12, metadata !DIExpression()), !dbg !13
31  %tmp2 = icmp slt i16 %tmp, 17, !dbg !16
32  br i1 %tmp2, label %bb2, label %bb3, !dbg !16
33
34bb2:
35  %tmp4 = call i16 @wibble(i16 %tmp), !dbg !16
36  %tmp5 = add nsw i16 %tmp4, %tmp, !dbg !16
37  call void @llvm.dbg.value(metadata i16 %tmp5, metadata !12, metadata !DIExpression()), !dbg !13
38  %tmp6 = call i16 @wibble(i16 %tmp4), !dbg !16
39  %tmp7 = mul nsw i16 %tmp6, 3, !dbg !16
40  %tmp8 = call i16 @wibble(i16 %tmp7), !dbg !16
41  br label %bb1, !dbg !16
42
43bb3:
44  %tmp10 = call i16 @wibble(i16 8), !dbg !16
45  ret i16 %tmp10, !dbg !16
46}
47
48declare void @llvm.dbg.value(metadata, metadata, metadata) #1
49
50declare i16 @wibble(i16) #2
51
52attributes #0 = { noinline nounwind }
53attributes #1 = { nounwind readnone speculatable willreturn }
54attributes #2 = { noinline nounwind readnone }
55
56!llvm.dbg.cu = !{!0}
57!llvm.module.flags = !{!3, !4, !5}
58!llvm.ident = !{!6}
59
60!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 10.0.0", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, globals: !2, nameTableKind: None)
61!1 = !DIFile(filename: "foo.c", directory: "")
62!2 = !{}
63!3 = !{i32 7, !"Dwarf Version", i32 4}
64!4 = !{i32 2, !"Debug Info Version", i32 3}
65!5 = !{i32 1, !"wchar_size", i32 1}
66!6 = !{!"clang version 10.0.0"}
67!7 = distinct !DISubprogram(name: "main", scope: !1, file: !1, line: 8, type: !8, scopeLine: 8, flags: DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !11)
68!8 = !DISubroutineType(types: !9)
69!9 = !{!10}
70!10 = !DIBasicType(name: "int", size: 16, encoding: DW_ATE_signed)
71!11 = !{!12}
72!12 = !DILocalVariable(name: "x", scope: !7, file: !1, line: 9, type: !10)
73!13 = !DILocation(line: 0, scope: !7)
74!14 = !DILocation(line: 11, column: 8, scope: !15)
75!15 = distinct !DILexicalBlock(scope: !7, file: !1, line: 11, column: 3)
76!16 = !DILocation(line: 11, column: 21, scope: !17)
77!17 = distinct !DILexicalBlock(scope: !15, file: !1, line: 11, column: 3)
78