1; RUN: llc -march=mips -mcpu=mips32r2 -O1 -filetype=obj <%s | \
2; RUN:    llvm-dwarfdump -debug-dump=all - | FileCheck %s -check-prefix=F0
3; RUN: llc -march=mips -mcpu=mips32r2 -O1 -filetype=obj <%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_location [DW_FORM_sec_offset]   (0x00000014)
26; F0: DW_AT_name [DW_FORM_strp]     ( .debug_str[0x0000006b] = "x")
27;
28; x -> DW_OP_reg1(51)
29; F0: 0x00000014: Beginning address offset: 0x0000000000000028
30; F0:                Ending address offset: 0x0000000000000030
31; F0:                 Location description: 51
32
33define i32 @f0(i32 signext %a, i32 signext %b, i32 signext %c, i32 signext %d, i32 signext %e) !dbg !4 {
34entry:
35  %x = alloca i32, align 4
36  tail call void @llvm.dbg.value(metadata i32 %a, i64 0, metadata !9,  metadata !DIExpression()), !dbg !27
37  tail call void @llvm.dbg.value(metadata i32 %b, i64 0, metadata !10, metadata !DIExpression()), !dbg !28
38  tail call void @llvm.dbg.value(metadata i32 %c, i64 0, metadata !11, metadata !DIExpression()), !dbg !29
39  tail call void @llvm.dbg.value(metadata i32 %d, i64 0, metadata !12, metadata !DIExpression()), !dbg !30
40  tail call void @llvm.dbg.value(metadata i32 %e, i64 0, metadata !13, metadata !DIExpression()), !dbg !31
41  %0 = bitcast i32* %x to i8*, !dbg !32
42  call void @llvm.lifetime.start(i64 4, i8* %0) #4, !dbg !32
43  %add = add nsw i32 %b, %a, !dbg !33
44  %add1 = add nsw i32 %add, %c, !dbg !34
45  %add2 = add nsw i32 %add1, %d, !dbg !35
46  %add3 = add nsw i32 %add2, %e, !dbg !36
47  tail call void @llvm.dbg.value(metadata i32 %add3, i64 0, metadata !14, metadata !DIExpression()), !dbg !37
48  store i32 %add3, i32* %x, align 4, !dbg !37, !tbaa !38
49  tail call void @llvm.dbg.value(metadata i32* %x, i64 0, metadata !14, metadata !26), !dbg !37
50  call void @foo(i32* nonnull %x) #4, !dbg !42
51  call void @llvm.dbg.value(metadata i32* %x, i64 0, metadata !14, metadata !26), !dbg !37
52  %1 = load i32, i32* %x, align 4, !dbg !43, !tbaa !38
53  call void @llvm.lifetime.end(i64 4, i8* %0) #4, !dbg !44
54  ret i32 %1, !dbg !45
55}
56
57
58; F1: DW_AT_location [DW_FORM_sec_offset]   (0x00000033)
59; F1: DW_AT_name [DW_FORM_strp]     ( .debug_str[0x0000006b] = "x")
60
61; x -> DW_OP_reg1(51)
62; F1: 0x00000033: Beginning address offset: 0x0000000000000080
63; F1:                Ending address offset: 0x0000000000000088
64; F1:                 Location description: 51
65
66define i32 @f1(i32 signext %a, i32 signext %b, i32 signext %c, i32 signext %d, i32 signext %e) !dbg !15 {
67entry:
68  %x = alloca i32, align 16
69  tail call void @llvm.dbg.value(metadata i32 %a, i64 0, metadata !17, metadata !DIExpression()), !dbg !46
70  tail call void @llvm.dbg.value(metadata i32 %b, i64 0, metadata !18, metadata !DIExpression()), !dbg !47
71  tail call void @llvm.dbg.value(metadata i32 %c, i64 0, metadata !19, metadata !DIExpression()), !dbg !48
72  tail call void @llvm.dbg.value(metadata i32 %d, i64 0, metadata !20, metadata !DIExpression()), !dbg !49
73  tail call void @llvm.dbg.value(metadata i32 %e, i64 0, metadata !21, metadata !DIExpression()), !dbg !50
74  %0 = bitcast i32* %x to i8*, !dbg !51
75  call void @llvm.lifetime.start(i64 4, i8* %0) #4, !dbg !51
76  %add = add nsw i32 %b, %a, !dbg !52
77  %add1 = add nsw i32 %add, %c, !dbg !53
78  %add2 = add nsw i32 %add1, %d, !dbg !54
79  %add3 = add nsw i32 %add2, %e, !dbg !55
80  tail call void @llvm.dbg.value(metadata i32 %add3, i64 0, metadata !22, metadata !DIExpression()), !dbg !56
81  store i32 %add3, i32* %x, align 16, !dbg !56, !tbaa !38
82  tail call void @llvm.dbg.value(metadata i32* %x, i64 0, metadata !22, metadata !26), !dbg !56
83  call void @foo(i32* nonnull %x) #4, !dbg !57
84  call void @llvm.dbg.value(metadata i32* %x, i64 0, metadata !22, metadata !26), !dbg !56
85  %1 = load i32, i32* %x, align 16, !dbg !58, !tbaa !38
86  call void @llvm.lifetime.end(i64 4, i8* %0) #4, !dbg !59
87  ret i32 %1, !dbg !60
88}
89
90declare void @llvm.dbg.value(metadata, i64, metadata, metadata)
91
92!llvm.dbg.cu = !{!0}
93!llvm.module.flags = !{!23, !24}
94!llvm.ident = !{!25}
95
96!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: 1, enums: !2, subprograms: !3)
97!1 = !DIFile(filename: "test.c", directory: "/home/vk/repos/tmp/dwarf")
98!2 = !{}
99!3 = !{!4, !15}
100!4 = distinct !DISubprogram(name: "f0", scope: !1, file: !1, line: 4, type: !5, isLocal: false, isDefinition: true, scopeLine: 4, flags: DIFlagPrototyped, isOptimized: true, variables: !8)
101!5 = !DISubroutineType(types: !6)
102!6 = !{!7, !7, !7, !7, !7, !7}
103!7 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
104!8 = !{!9, !10, !11, !12, !13, !14}
105!9 = !DILocalVariable(name: "a", arg: 1, scope: !4, file: !1, line: 4, type: !7)
106!10 = !DILocalVariable(name: "b", arg: 2, scope: !4, file: !1, line: 4, type: !7)
107!11 = !DILocalVariable(name: "c", arg: 3, scope: !4, file: !1, line: 4, type: !7)
108!12 = !DILocalVariable(name: "d", arg: 4, scope: !4, file: !1, line: 4, type: !7)
109!13 = !DILocalVariable(name: "e", arg: 5, scope: !4, file: !1, line: 4, type: !7)
110!14 = !DILocalVariable(name: "x", scope: !4, file: !1, line: 5, type: !7)
111!15 = distinct !DISubprogram(name: "f1", scope: !1, file: !1, line: 11, type: !5, isLocal: false, isDefinition: true, scopeLine: 11, flags: DIFlagPrototyped, isOptimized: true, variables: !16)
112!16 = !{!17, !18, !19, !20, !21, !22}
113!17 = !DILocalVariable(name: "a", arg: 1, scope: !15, file: !1, line: 11, type: !7)
114!18 = !DILocalVariable(name: "b", arg: 2, scope: !15, file: !1, line: 11, type: !7)
115!19 = !DILocalVariable(name: "c", arg: 3, scope: !15, file: !1, line: 11, type: !7)
116!20 = !DILocalVariable(name: "d", arg: 4, scope: !15, file: !1, line: 11, type: !7)
117!21 = !DILocalVariable(name: "e", arg: 5, scope: !15, file: !1, line: 11, type: !7)
118!22 = !DILocalVariable(name: "x", scope: !15, file: !1, line: 12, type: !7)
119!23 = !{i32 2, !"Dwarf Version", i32 4}
120!24 = !{i32 2, !"Debug Info Version", i32 3}
121!25 = !{!"clang version 3.8.0 (trunk 251783) (llvm/trunk 251781)"}
122!26 = !DIExpression(DW_OP_deref)
123!27 = !DILocation(line: 4, column: 12, scope: !4)
124!28 = !DILocation(line: 4, column: 19, scope: !4)
125!29 = !DILocation(line: 4, column: 26, scope: !4)
126!30 = !DILocation(line: 4, column: 33, scope: !4)
127!31 = !DILocation(line: 4, column: 40, scope: !4)
128!32 = !DILocation(line: 5, column: 3, scope: !4)
129!33 = !DILocation(line: 5, column: 13, scope: !4)
130!34 = !DILocation(line: 5, column: 17, scope: !4)
131!35 = !DILocation(line: 5, column: 21, scope: !4)
132!36 = !DILocation(line: 5, column: 25, scope: !4)
133!37 = !DILocation(line: 5, column: 7, scope: !4)
134!38 = !{!39, !39, i64 0}
135!39 = !{!"int", !40, i64 0}
136!40 = !{!"omnipotent char", !41, i64 0}
137!41 = !{!"Simple C/C++ TBAA"}
138!42 = !DILocation(line: 6, column: 3, scope: !4)
139!43 = !DILocation(line: 7, column: 10, scope: !4)
140!44 = !DILocation(line: 8, column: 1, scope: !4)
141!45 = !DILocation(line: 7, column: 3, scope: !4)
142!46 = !DILocation(line: 11, column: 12, scope: !15)
143!47 = !DILocation(line: 11, column: 19, scope: !15)
144!48 = !DILocation(line: 11, column: 26, scope: !15)
145!49 = !DILocation(line: 11, column: 33, scope: !15)
146!50 = !DILocation(line: 11, column: 40, scope: !15)
147!51 = !DILocation(line: 12, column: 3, scope: !15)
148!52 = !DILocation(line: 12, column: 42, scope: !15)
149!53 = !DILocation(line: 12, column: 46, scope: !15)
150!54 = !DILocation(line: 12, column: 50, scope: !15)
151!55 = !DILocation(line: 12, column: 54, scope: !15)
152!56 = !DILocation(line: 12, column: 7, scope: !15)
153!57 = !DILocation(line: 13, column: 3, scope: !15)
154!58 = !DILocation(line: 14, column: 10, scope: !15)
155!59 = !DILocation(line: 15, column: 1, scope: !15)
156!60 = !DILocation(line: 14, column: 3, scope: !15)
157