• Home
  • Line#
  • Scopes#
  • Navigate#
  • Raw
  • Download
1; RUN: llc -march=mips -mcpu=mips32r2 -O1 -filetype=obj -relocation-model=pic <%s | \
2; RUN:    llvm-dwarfdump -debug-dump=all - | FileCheck %s -check-prefix=F0
3; RUN: llc -march=mips -mcpu=mips32r2 -O1 -filetype=obj -relocation-model=pic <%s | \
4; RUN:    llvm-dwarfdump -debug-dump=all - | FileCheck %s -check-prefix=F1
5
6; void foo(int *);
7;
8; int f0(int a, int b, int c, int d, int e) {
9;   int x = a + b + c + d + e;
10;   foo(&x);
11;   return x;
12; }
13;
14; int f1(int a, int b, int c, int d, int e) {
15;   int x __attribute__((aligned(16))) = a + b + c + d + e;
16;   foo(&x);
17;   return x;
18; }
19
20declare void @llvm.lifetime.start(i64, i8* nocapture)
21declare void @llvm.lifetime.end(i64, i8* nocapture)
22
23declare void @foo(i32*)
24
25; F0: DW_AT_name {{.*}}"e"
26; F0: DW_TAG_variable
27; F0-NEXT: DW_AT_location [DW_FORM_sec_offset]   ([[LOC:.*]])
28; F0-NEXT: DW_AT_name [DW_FORM_strp]     ( .debug_str[0x0000006b] = "x")
29;
30; x -> DW_OP_reg1(51)
31; F0: [[LOC]]: Beginning address offset: 0x0000000000000028
32; F0:             Ending address offset: 0x0000000000000030
33; F0:              Location description: 51
34
35define i32 @f0(i32 signext %a, i32 signext %b, i32 signext %c, i32 signext %d, i32 signext %e) !dbg !4 {
36entry:
37  %x = alloca i32, align 4
38  tail call void @llvm.dbg.value(metadata i32 %a, i64 0, metadata !9,  metadata !DIExpression()), !dbg !27
39  tail call void @llvm.dbg.value(metadata i32 %b, i64 0, metadata !10, metadata !DIExpression()), !dbg !28
40  tail call void @llvm.dbg.value(metadata i32 %c, i64 0, metadata !11, metadata !DIExpression()), !dbg !29
41  tail call void @llvm.dbg.value(metadata i32 %d, i64 0, metadata !12, metadata !DIExpression()), !dbg !30
42  tail call void @llvm.dbg.value(metadata i32 %e, i64 0, metadata !13, metadata !DIExpression()), !dbg !31
43  %0 = bitcast i32* %x to i8*, !dbg !32
44  call void @llvm.lifetime.start(i64 4, i8* %0) #4, !dbg !32
45  %add = add nsw i32 %b, %a, !dbg !33
46  %add1 = add nsw i32 %add, %c, !dbg !34
47  %add2 = add nsw i32 %add1, %d, !dbg !35
48  %add3 = add nsw i32 %add2, %e, !dbg !36
49  tail call void @llvm.dbg.value(metadata i32 %add3, i64 0, metadata !14, metadata !DIExpression()), !dbg !37
50  store i32 %add3, i32* %x, align 4, !dbg !37, !tbaa !38
51  tail call void @llvm.dbg.value(metadata i32* %x, i64 0, metadata !14, metadata !26), !dbg !37
52  call void @foo(i32* nonnull %x) #4, !dbg !42
53  call void @llvm.dbg.value(metadata i32* %x, i64 0, metadata !14, metadata !26), !dbg !37
54  %1 = load i32, i32* %x, align 4, !dbg !43, !tbaa !38
55  call void @llvm.lifetime.end(i64 4, i8* %0) #4, !dbg !44
56  ret i32 %1, !dbg !45
57}
58
59
60; F1: DW_AT_name {{.*}}"x"
61; F1: DW_AT_name {{.*}}"e"
62; F1: DW_TAG_variable
63; F1-NEXT: DW_AT_location [DW_FORM_sec_offset]   ([[LOC:.*]])
64; F1-NEXT: DW_AT_name [DW_FORM_strp]     ( .debug_str[0x0000006b] = "x")
65
66; x -> DW_OP_reg1(51)
67; F1: [[LOC]]: Beginning address offset: 0x0000000000000080
68; F1:             Ending address offset: 0x0000000000000088
69; F1:              Location description: 51
70
71define i32 @f1(i32 signext %a, i32 signext %b, i32 signext %c, i32 signext %d, i32 signext %e) !dbg !15 {
72entry:
73  %x = alloca i32, align 16
74  tail call void @llvm.dbg.value(metadata i32 %a, i64 0, metadata !17, metadata !DIExpression()), !dbg !46
75  tail call void @llvm.dbg.value(metadata i32 %b, i64 0, metadata !18, metadata !DIExpression()), !dbg !47
76  tail call void @llvm.dbg.value(metadata i32 %c, i64 0, metadata !19, metadata !DIExpression()), !dbg !48
77  tail call void @llvm.dbg.value(metadata i32 %d, i64 0, metadata !20, metadata !DIExpression()), !dbg !49
78  tail call void @llvm.dbg.value(metadata i32 %e, i64 0, metadata !21, metadata !DIExpression()), !dbg !50
79  %0 = bitcast i32* %x to i8*, !dbg !51
80  call void @llvm.lifetime.start(i64 4, i8* %0) #4, !dbg !51
81  %add = add nsw i32 %b, %a, !dbg !52
82  %add1 = add nsw i32 %add, %c, !dbg !53
83  %add2 = add nsw i32 %add1, %d, !dbg !54
84  %add3 = add nsw i32 %add2, %e, !dbg !55
85  tail call void @llvm.dbg.value(metadata i32 %add3, i64 0, metadata !22, metadata !DIExpression()), !dbg !56
86  store i32 %add3, i32* %x, align 16, !dbg !56, !tbaa !38
87  tail call void @llvm.dbg.value(metadata i32* %x, i64 0, metadata !22, metadata !26), !dbg !56
88  call void @foo(i32* nonnull %x) #4, !dbg !57
89  call void @llvm.dbg.value(metadata i32* %x, i64 0, metadata !22, metadata !26), !dbg !56
90  %1 = load i32, i32* %x, align 16, !dbg !58, !tbaa !38
91  call void @llvm.lifetime.end(i64 4, i8* %0) #4, !dbg !59
92  ret i32 %1, !dbg !60
93}
94
95declare void @llvm.dbg.value(metadata, i64, metadata, metadata)
96
97!llvm.dbg.cu = !{!0}
98!llvm.module.flags = !{!23, !24}
99!llvm.ident = !{!25}
100
101!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 3.8.0 (trunk 251783) (llvm/trunk 251781)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2)
102!1 = !DIFile(filename: "test.c", directory: "/home/vk/repos/tmp/dwarf")
103!2 = !{}
104!4 = distinct !DISubprogram(name: "f0", scope: !1, file: !1, line: 4, type: !5, isLocal: false, isDefinition: true, scopeLine: 4, flags: DIFlagPrototyped, isOptimized: true, unit: !0, variables: !8)
105!5 = !DISubroutineType(types: !6)
106!6 = !{!7, !7, !7, !7, !7, !7}
107!7 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
108!8 = !{!9, !10, !11, !12, !13, !14}
109!9 = !DILocalVariable(name: "a", arg: 1, scope: !4, file: !1, line: 4, type: !7)
110!10 = !DILocalVariable(name: "b", arg: 2, scope: !4, file: !1, line: 4, type: !7)
111!11 = !DILocalVariable(name: "c", arg: 3, scope: !4, file: !1, line: 4, type: !7)
112!12 = !DILocalVariable(name: "d", arg: 4, scope: !4, file: !1, line: 4, type: !7)
113!13 = !DILocalVariable(name: "e", arg: 5, scope: !4, file: !1, line: 4, type: !7)
114!14 = !DILocalVariable(name: "x", scope: !4, file: !1, line: 5, type: !7)
115!15 = distinct !DISubprogram(name: "f1", scope: !1, file: !1, line: 11, type: !5, isLocal: false, isDefinition: true, scopeLine: 11, flags: DIFlagPrototyped, isOptimized: true, unit: !0, variables: !16)
116!16 = !{!17, !18, !19, !20, !21, !22}
117!17 = !DILocalVariable(name: "a", arg: 1, scope: !15, file: !1, line: 11, type: !7)
118!18 = !DILocalVariable(name: "b", arg: 2, scope: !15, file: !1, line: 11, type: !7)
119!19 = !DILocalVariable(name: "c", arg: 3, scope: !15, file: !1, line: 11, type: !7)
120!20 = !DILocalVariable(name: "d", arg: 4, scope: !15, file: !1, line: 11, type: !7)
121!21 = !DILocalVariable(name: "e", arg: 5, scope: !15, file: !1, line: 11, type: !7)
122!22 = !DILocalVariable(name: "x", scope: !15, file: !1, line: 12, type: !7)
123!23 = !{i32 2, !"Dwarf Version", i32 4}
124!24 = !{i32 2, !"Debug Info Version", i32 3}
125!25 = !{!"clang version 3.8.0 (trunk 251783) (llvm/trunk 251781)"}
126!26 = !DIExpression(DW_OP_deref)
127!27 = !DILocation(line: 4, column: 12, scope: !4)
128!28 = !DILocation(line: 4, column: 19, scope: !4)
129!29 = !DILocation(line: 4, column: 26, scope: !4)
130!30 = !DILocation(line: 4, column: 33, scope: !4)
131!31 = !DILocation(line: 4, column: 40, scope: !4)
132!32 = !DILocation(line: 5, column: 3, scope: !4)
133!33 = !DILocation(line: 5, column: 13, scope: !4)
134!34 = !DILocation(line: 5, column: 17, scope: !4)
135!35 = !DILocation(line: 5, column: 21, scope: !4)
136!36 = !DILocation(line: 5, column: 25, scope: !4)
137!37 = !DILocation(line: 5, column: 7, scope: !4)
138!38 = !{!39, !39, i64 0}
139!39 = !{!"int", !40, i64 0}
140!40 = !{!"omnipotent char", !41, i64 0}
141!41 = !{!"Simple C/C++ TBAA"}
142!42 = !DILocation(line: 6, column: 3, scope: !4)
143!43 = !DILocation(line: 7, column: 10, scope: !4)
144!44 = !DILocation(line: 8, column: 1, scope: !4)
145!45 = !DILocation(line: 7, column: 3, scope: !4)
146!46 = !DILocation(line: 11, column: 12, scope: !15)
147!47 = !DILocation(line: 11, column: 19, scope: !15)
148!48 = !DILocation(line: 11, column: 26, scope: !15)
149!49 = !DILocation(line: 11, column: 33, scope: !15)
150!50 = !DILocation(line: 11, column: 40, scope: !15)
151!51 = !DILocation(line: 12, column: 3, scope: !15)
152!52 = !DILocation(line: 12, column: 42, scope: !15)
153!53 = !DILocation(line: 12, column: 46, scope: !15)
154!54 = !DILocation(line: 12, column: 50, scope: !15)
155!55 = !DILocation(line: 12, column: 54, scope: !15)
156!56 = !DILocation(line: 12, column: 7, scope: !15)
157!57 = !DILocation(line: 13, column: 3, scope: !15)
158!58 = !DILocation(line: 14, column: 10, scope: !15)
159!59 = !DILocation(line: 15, column: 1, scope: !15)
160!60 = !DILocation(line: 14, column: 3, scope: !15)
161