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1; RUN: llc < %s -mtriple=arm64-windows -filetype=obj | llvm-readobj --codeview - | FileCheck %s --check-prefix=OBJ
2
3; Generated from:
4; volatile int x;
5; int getint(void);
6; void putint(int);
7; static inline int inlineinc(int a) {
8;   int b = a + 1;
9;   ++x;
10;   return b;
11; }
12; void f(int p) {
13;   if (p) {
14;     int a = getint();
15;     int b = inlineinc(a);
16;     putint(b);
17;   } else {
18;     int c = getint();
19;     putint(c);
20;   }
21; }
22
23
24; OBJ:   DefRangeRegisterRelSym {
25; OBJ:     Kind: S_DEFRANGE_REGISTER_REL (0x1145)
26; OBJ:     BaseRegister: ARM64_SP (0x51)
27; OBJ:     HasSpilledUDTMember: No
28; OBJ:     OffsetInParent: 0
29; OBJ:     BasePointerOffset: 12
30; OBJ:     LocalVariableAddrRange {
31; OBJ:       OffsetStart: .text+0x14
32; OBJ:       ISectStart: 0x0
33; OBJ:       Range: 0x30
34; OBJ:     }
35; OBJ:   }
36
37; ModuleID = 't.cpp'
38source_filename = "test/DebugInfo/COFF/register-variables-arm64.ll"
39target datalayout = "e-m:w-p:64:64-i32:32-i64:64-i128:128-n32:64-S128"
40target triple = "arm64-unknown-windows-msvc19.16.27023"
41
42@x = common dso_local global i32 0, align 4, !dbg !0
43
44; Function Attrs: noinline nounwind optnone uwtable
45define dso_local void @f(i32 %p) #0 !dbg !12 {
46entry:
47  %p.addr = alloca i32, align 4
48  %a = alloca i32, align 4
49  %b = alloca i32, align 4
50  %c = alloca i32, align 4
51  store i32 %p, i32* %p.addr, align 4
52  call void @llvm.dbg.declare(metadata i32* %p.addr, metadata !15, metadata !DIExpression()), !dbg !16
53  %0 = load i32, i32* %p.addr, align 4, !dbg !17
54  %tobool = icmp ne i32 %0, 0, !dbg !17
55  br i1 %tobool, label %if.then, label %if.else, !dbg !17
56
57if.then:                                          ; preds = %entry
58  call void @llvm.dbg.declare(metadata i32* %a, metadata !18, metadata !DIExpression()), !dbg !21
59  %call = call i32 @getint(), !dbg !21
60  store i32 %call, i32* %a, align 4, !dbg !21
61  call void @llvm.dbg.declare(metadata i32* %b, metadata !22, metadata !DIExpression()), !dbg !23
62  %1 = load i32, i32* %a, align 4, !dbg !23
63  %call1 = call i32 @inlineinc(i32 %1), !dbg !23
64  store i32 %call1, i32* %b, align 4, !dbg !23
65  %2 = load i32, i32* %b, align 4, !dbg !24
66  call void @putint(i32 %2), !dbg !24
67  br label %if.end, !dbg !25
68
69if.else:                                          ; preds = %entry
70  call void @llvm.dbg.declare(metadata i32* %c, metadata !26, metadata !DIExpression()), !dbg !28
71  %call2 = call i32 @getint(), !dbg !28
72  store i32 %call2, i32* %c, align 4, !dbg !28
73  %3 = load i32, i32* %c, align 4, !dbg !29
74  call void @putint(i32 %3), !dbg !29
75  br label %if.end, !dbg !30
76
77if.end:                                           ; preds = %if.else, %if.then
78  ret void, !dbg !31
79}
80
81; Function Attrs: nounwind readnone speculatable
82declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
83
84declare dso_local i32 @getint() #2
85
86; Function Attrs: noinline nounwind optnone uwtable
87define internal i32 @inlineinc(i32 %a) #0 !dbg !32 {
88entry:
89  %a.addr = alloca i32, align 4
90  %b = alloca i32, align 4
91  store i32 %a, i32* %a.addr, align 4
92  call void @llvm.dbg.declare(metadata i32* %a.addr, metadata !35, metadata !DIExpression()), !dbg !36
93  call void @llvm.dbg.declare(metadata i32* %b, metadata !37, metadata !DIExpression()), !dbg !38
94  %0 = load i32, i32* %a.addr, align 4, !dbg !38
95  %add = add nsw i32 %0, 1, !dbg !38
96  store i32 %add, i32* %b, align 4, !dbg !38
97  %1 = load volatile i32, i32* @x, align 4, !dbg !39
98  %inc = add nsw i32 %1, 1, !dbg !39
99  store volatile i32 %inc, i32* @x, align 4, !dbg !39
100  %2 = load i32, i32* %b, align 4, !dbg !40
101  ret i32 %2, !dbg !40
102}
103
104declare dso_local void @putint(i32) #2
105
106!llvm.dbg.cu = !{!2}
107!llvm.module.flags = !{!8, !9, !10}
108
109!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression())
110!1 = distinct !DIGlobalVariable(name: "x", scope: !2, file: !3, line: 1, type: !6, isLocal: false, isDefinition: true)
111!2 = distinct !DICompileUnit(language: DW_LANG_C99, file: !3, producer: "clang version 9.0.0 (trunk 361867) (llvm/trunk 361866)", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, globals: !5, nameTableKind: None)
112!3 = !DIFile(filename: "t.c", directory: "S:\5CLLVM\5Csvn\5Csbr\5Cbin", checksumkind: CSK_MD5, checksum: "734c448e95a6204a439a847ed063e5ce")
113!4 = !{}
114!5 = !{!0}
115!6 = !DIDerivedType(tag: DW_TAG_volatile_type, baseType: !7)
116!7 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
117!8 = !{i32 2, !"CodeView", i32 1}
118!9 = !{i32 2, !"Debug Info Version", i32 3}
119!10 = !{i32 1, !"wchar_size", i32 2}
120!11 = !{!"clang version 9.0.0 (trunk 361867) (llvm/trunk 361866)"}
121!12 = distinct !DISubprogram(name: "f", scope: !3, file: !3, line: 9, type: !13, scopeLine: 9, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !2, retainedNodes: !4)
122!13 = !DISubroutineType(types: !14)
123!14 = !{null, !7}
124!15 = !DILocalVariable(name: "p", arg: 1, scope: !12, file: !3, line: 9, type: !7)
125!16 = !DILocation(line: 9, scope: !12)
126!17 = !DILocation(line: 10, scope: !12)
127!18 = !DILocalVariable(name: "a", scope: !19, file: !3, line: 11, type: !7)
128!19 = distinct !DILexicalBlock(scope: !20, file: !3, line: 10)
129!20 = distinct !DILexicalBlock(scope: !12, file: !3, line: 10)
130!21 = !DILocation(line: 11, scope: !19)
131!22 = !DILocalVariable(name: "b", scope: !19, file: !3, line: 12, type: !7)
132!23 = !DILocation(line: 12, scope: !19)
133!24 = !DILocation(line: 13, scope: !19)
134!25 = !DILocation(line: 14, scope: !19)
135!26 = !DILocalVariable(name: "c", scope: !27, file: !3, line: 15, type: !7)
136!27 = distinct !DILexicalBlock(scope: !20, file: !3, line: 14)
137!28 = !DILocation(line: 15, scope: !27)
138!29 = !DILocation(line: 16, scope: !27)
139!30 = !DILocation(line: 17, scope: !27)
140!31 = !DILocation(line: 18, scope: !12)
141!32 = distinct !DISubprogram(name: "inlineinc", scope: !3, file: !3, line: 4, type: !33, scopeLine: 4, flags: DIFlagPrototyped, spFlags: DISPFlagLocalToUnit | DISPFlagDefinition, unit: !2, retainedNodes: !4)
142!33 = !DISubroutineType(types: !34)
143!34 = !{!7, !7}
144!35 = !DILocalVariable(name: "a", arg: 1, scope: !32, file: !3, line: 4, type: !7)
145!36 = !DILocation(line: 4, scope: !32)
146!37 = !DILocalVariable(name: "b", scope: !32, file: !3, line: 5, type: !7)
147!38 = !DILocation(line: 5, scope: !32)
148!39 = !DILocation(line: 6, scope: !32)
149!40 = !DILocation(line: 7, scope: !32)
150