1 ; RUN: llc -split-dwarf=Enable -O0 %s -mtriple=x86_64-unknown-linux-gnu -filetype=obj -o %t
2 ; RUN: llvm-dwarfdump %t | FileCheck %s
3 ; RUN: llvm-objdump -h %t | FileCheck --check-prefix=HDR %s
5 ; CHECK: .debug_info contents:
6 ; CHECK: DW_TAG_compile_unit
7 ; CHECK-NEXT: DW_AT_stmt_list
8 ; CHECK-NEXT: DW_AT_GNU_dwo_name
9 ; CHECK-NEXT: DW_AT_comp_dir
10 ; CHECK-NEXT: DW_AT_GNU_dwo_id
11 ; CHECK-NEXT: DW_AT_GNU_addr_base [DW_FORM_sec_offset] (0x00000000)
14 ; CHECK: .debug_info.dwo contents:
15 ; CHECK: DW_AT_location [DW_FORM_sec_offset] ([[A:0x[0-9a-z]*]])
16 ; CHECK: DW_AT_location [DW_FORM_sec_offset] ([[E:0x[0-9a-z]*]])
17 ; CHECK: DW_AT_location [DW_FORM_sec_offset] ([[B:0x[0-9a-z]*]])
18 ; CHECK: DW_AT_location [DW_FORM_sec_offset] ([[D:0x[0-9a-z]*]])
19 ; CHECK: DW_AT_ranges [DW_FORM_sec_offset] (0x000000a0)
20 ; CHECK: .debug_loc contents:
21 ; CHECK-NOT: Beginning address offset
22 ; CHECK: .debug_loc.dwo contents:
24 ; Don't assume these locations are entirely correct - feel free to update them
25 ; if they've changed due to a bugfix, change in register allocation, etc.
27 ; CHECK: [[A]]: Beginning address index: 2
28 ; CHECK-NEXT: Length: 199
29 ; CHECK-NEXT: Location description: 11 00
31 ; CHECK-NEXT: Beginning address index: 3
32 ; CHECK-NEXT: Length: 23
33 ; CHECK-NEXT: Location description: 50 93 04
34 ; CHECK: [[E]]: Beginning address index: 4
35 ; CHECK-NEXT: Length: 21
36 ; CHECK-NEXT: Location description: 50 93 04
37 ; CHECK: [[B]]: Beginning address index: 5
38 ; CHECK-NEXT: Length: 19
39 ; CHECK-NEXT: Location description: 50 93 04
40 ; CHECK: [[D]]: Beginning address index: 6
41 ; CHECK-NEXT: Length: 23
42 ; CHECK-NEXT: Location description: 50 93 04
44 ; Make sure we don't produce any relocations in any .dwo section (though in particular, debug_info.dwo)
45 ; HDR-NOT: .rela.{{.*}}.dwo
50 ; static void foo (int p)
55 ; for (a = 0; a < 30; a++)
56 ; for (d = 0; d < 30; d++)
57 ; for (b = 0; b < 30; b++)
58 ; for (e = 0; e < 30; e++)
73 ; clang -g -S -gsplit-dwarf -O1 small.c
75 @c = external global i32
77 ; Function Attrs: nounwind uwtable
78 define void @bar() #0 {
80 tail call fastcc void @foo(), !dbg !27
84 ; Function Attrs: nounwind uwtable
85 define internal fastcc void @foo() #0 {
87 tail call void @llvm.dbg.value(metadata !29, i64 0, metadata !13), !dbg !30
88 tail call void @llvm.dbg.value(metadata !44, i64 0, metadata !14), !dbg !31
89 %c.promoted9 = load i32* @c, align 4, !dbg !32, !tbaa !33
90 br label %for.cond1.preheader, !dbg !31
92 for.cond1.preheader: ; preds = %for.inc16, %entry
93 %and.lcssa.lcssa.lcssa10 = phi i32 [ %c.promoted9, %entry ], [ %and, %for.inc16 ]
94 %a.08 = phi i32 [ 0, %entry ], [ %inc17, %for.inc16 ]
95 br label %for.cond4.preheader, !dbg !37
97 for.cond4.preheader: ; preds = %for.inc13, %for.cond1.preheader
98 %and.lcssa.lcssa7 = phi i32 [ %and.lcssa.lcssa.lcssa10, %for.cond1.preheader ], [ %and, %for.inc13 ]
99 %d.06 = phi i32 [ 0, %for.cond1.preheader ], [ %inc14, %for.inc13 ]
100 br label %for.cond7.preheader, !dbg !38
102 for.cond7.preheader: ; preds = %for.inc10, %for.cond4.preheader
103 %and.lcssa5 = phi i32 [ %and.lcssa.lcssa7, %for.cond4.preheader ], [ %and, %for.inc10 ]
104 %b.03 = phi i32 [ 0, %for.cond4.preheader ], [ %inc11, %for.inc10 ]
105 br label %for.body9, !dbg !39
107 for.body9: ; preds = %for.body9, %for.cond7.preheader
108 %and2 = phi i32 [ %and.lcssa5, %for.cond7.preheader ], [ %and, %for.body9 ], !dbg !40
109 %e.01 = phi i32 [ 0, %for.cond7.preheader ], [ %inc, %for.body9 ]
110 tail call void @llvm.dbg.value(metadata !41, i64 0, metadata !19), !dbg !40
111 %and = and i32 %and2, 1, !dbg !32
112 %inc = add i32 %e.01, 1, !dbg !39
113 tail call void @llvm.dbg.value(metadata !{i32 %inc}, i64 0, metadata !18), !dbg !39
114 %exitcond = icmp eq i32 %inc, 30, !dbg !39
115 br i1 %exitcond, label %for.inc10, label %for.body9, !dbg !39
117 for.inc10: ; preds = %for.body9
118 %inc11 = add nsw i32 %b.03, 1, !dbg !38
119 tail call void @llvm.dbg.value(metadata !{i32 %inc11}, i64 0, metadata !15), !dbg !38
120 %exitcond11 = icmp eq i32 %inc11, 30, !dbg !38
121 br i1 %exitcond11, label %for.inc13, label %for.cond7.preheader, !dbg !38
123 for.inc13: ; preds = %for.inc10
124 %inc14 = add i32 %d.06, 1, !dbg !37
125 tail call void @llvm.dbg.value(metadata !{i32 %inc14}, i64 0, metadata !16), !dbg !37
126 %exitcond12 = icmp eq i32 %inc14, 30, !dbg !37
127 br i1 %exitcond12, label %for.inc16, label %for.cond4.preheader, !dbg !37
129 for.inc16: ; preds = %for.inc13
130 %inc17 = add nsw i32 %a.08, 1, !dbg !31
131 tail call void @llvm.dbg.value(metadata !{i32 %inc17}, i64 0, metadata !14), !dbg !31
132 %exitcond13 = icmp eq i32 %inc17, 30, !dbg !31
133 br i1 %exitcond13, label %for.end18, label %for.cond1.preheader, !dbg !31
135 for.end18: ; preds = %for.inc16
136 store i32 %and, i32* @c, align 4, !dbg !32, !tbaa !33
140 ; Function Attrs: nounwind readnone
141 declare void @llvm.dbg.value(metadata, i64, metadata) #1
143 attributes #0 = { nounwind uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
144 attributes #1 = { nounwind readnone }
147 !llvm.module.flags = !{!26, !43}
149 !0 = metadata !{i32 786449, metadata !1, i32 12, metadata !"clang version 3.4 (trunk 191700) (llvm/trunk 191710)", i1 true, metadata !"", i32 0, metadata !2, metadata !2, metadata !3, metadata !2, metadata !2, metadata !"small.dwo"} ; [ DW_TAG_compile_unit ] [/usr/local/google/home/echristo/tmp/small.c] [DW_LANG_C99]
150 !1 = metadata !{metadata !"small.c", metadata !"/usr/local/google/home/echristo/tmp"}
152 !3 = metadata !{metadata !4, metadata !8}
153 !4 = metadata !{i32 786478, metadata !1, metadata !5, metadata !"bar", metadata !"bar", metadata !"", i32 18, metadata !6, i1 false, i1 true, i32 0, i32 0, null, i32 0, i1 true, void ()* @bar, null, null, metadata !2, i32 19} ; [ DW_TAG_subprogram ] [line 18] [def] [scope 19] [bar]
154 !5 = metadata !{i32 786473, metadata !1} ; [ DW_TAG_file_type ] [/usr/local/google/home/echristo/tmp/small.c]
155 !6 = metadata !{i32 786453, i32 0, null, metadata !"", i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !7, i32 0, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
156 !7 = metadata !{null}
157 !8 = metadata !{i32 786478, metadata !1, metadata !5, metadata !"foo", metadata !"foo", metadata !"", i32 2, metadata !9, i1 true, i1 true, i32 0, i32 0, null, i32 256, i1 true, void ()* @foo, null, null, metadata !12, i32 3} ; [ DW_TAG_subprogram ] [line 2] [local] [def] [scope 3] [foo]
158 !9 = metadata !{i32 786453, i32 0, null, metadata !"", i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !10, i32 0, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
159 !10 = metadata !{null, metadata !11}
160 !11 = metadata !{i32 786468, null, null, metadata !"int", i32 0, i64 32, i64 32, i64 0, i32 0, i32 5} ; [ DW_TAG_base_type ] [int] [line 0, size 32, align 32, offset 0, enc DW_ATE_signed]
161 !12 = metadata !{metadata !13, metadata !14, metadata !15, metadata !16, metadata !18, metadata !19}
162 !13 = metadata !{i32 786689, metadata !8, metadata !"p", metadata !5, i32 16777218, metadata !11, i32 0, i32 0} ; [ DW_TAG_arg_variable ] [p] [line 2]
163 !14 = metadata !{i32 786688, metadata !8, metadata !"a", metadata !5, i32 4, metadata !11, i32 0, i32 0} ; [ DW_TAG_auto_variable ] [a] [line 4]
164 !15 = metadata !{i32 786688, metadata !8, metadata !"b", metadata !5, i32 4, metadata !11, i32 0, i32 0} ; [ DW_TAG_auto_variable ] [b] [line 4]
165 !16 = metadata !{i32 786688, metadata !8, metadata !"d", metadata !5, i32 5, metadata !17, i32 0, i32 0} ; [ DW_TAG_auto_variable ] [d] [line 5]
166 !17 = metadata !{i32 786468, null, null, metadata !"unsigned int", i32 0, i64 32, i64 32, i64 0, i32 0, i32 7} ; [ DW_TAG_base_type ] [unsigned int] [line 0, size 32, align 32, offset 0, enc DW_ATE_unsigned]
167 !18 = metadata !{i32 786688, metadata !8, metadata !"e", metadata !5, i32 5, metadata !17, i32 0, i32 0} ; [ DW_TAG_auto_variable ] [e] [line 5]
168 !19 = metadata !{i32 786688, metadata !20, metadata !"w", metadata !5, i32 12, metadata !25, i32 0, i32 0} ; [ DW_TAG_auto_variable ] [w] [line 12]
169 !20 = metadata !{i32 786443, metadata !1, metadata !21, i32 11, i32 0, i32 4} ; [ DW_TAG_lexical_block ] [/usr/local/google/home/echristo/tmp/small.c]
170 !21 = metadata !{i32 786443, metadata !1, metadata !22, i32 10, i32 0, i32 3} ; [ DW_TAG_lexical_block ] [/usr/local/google/home/echristo/tmp/small.c]
171 !22 = metadata !{i32 786443, metadata !1, metadata !23, i32 9, i32 0, i32 2} ; [ DW_TAG_lexical_block ] [/usr/local/google/home/echristo/tmp/small.c]
172 !23 = metadata !{i32 786443, metadata !1, metadata !24, i32 8, i32 0, i32 1} ; [ DW_TAG_lexical_block ] [/usr/local/google/home/echristo/tmp/small.c]
173 !24 = metadata !{i32 786443, metadata !1, metadata !8, i32 7, i32 0, i32 0} ; [ DW_TAG_lexical_block ] [/usr/local/google/home/echristo/tmp/small.c]
174 !25 = metadata !{i32 786447, null, null, metadata !"", i32 0, i64 64, i64 64, i64 0, i32 0, metadata !11} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [from int]
175 !26 = metadata !{i32 2, metadata !"Dwarf Version", i32 4}
176 !27 = metadata !{i32 20, i32 0, metadata !4, null}
177 !28 = metadata !{i32 21, i32 0, metadata !4, null}
178 !29 = metadata !{i32 1}
179 !30 = metadata !{i32 2, i32 0, metadata !8, null}
180 !31 = metadata !{i32 7, i32 0, metadata !24, null}
181 !32 = metadata !{i32 13, i32 0, metadata !20, null}
182 !33 = metadata !{metadata !34, metadata !34, i64 0}
183 !34 = metadata !{metadata !"int", metadata !35, i64 0}
184 !35 = metadata !{metadata !"omnipotent char", metadata !36, i64 0}
185 !36 = metadata !{metadata !"Simple C/C++ TBAA"}
186 !37 = metadata !{i32 8, i32 0, metadata !23, null} ; [ DW_TAG_imported_declaration ]
187 !38 = metadata !{i32 9, i32 0, metadata !22, null}
188 !39 = metadata !{i32 10, i32 0, metadata !21, null}
189 !40 = metadata !{i32 12, i32 0, metadata !20, null}
190 !41 = metadata !{i32* @c}
191 !42 = metadata !{i32 15, i32 0, metadata !8, null}
192 !43 = metadata !{i32 1, metadata !"Debug Info Version", i32 1}
193 !44 = metadata !{i32 0}