1 ; RUN: llc %s -filetype=obj -O0 -mtriple=i386-unknown-linux-gnu -dwarf-version=4 -o %t
2 ; RUN: llvm-dwarfdump %t | FileCheck %s
11 ; debug-loc-offset2.cc
17 ; void baz(struct A a) {
25 ; Compiled separately for i386-pc-linux-gnu and linked together.
26 ; This ensures that we have multiple compile units so that we can verify that
27 ; debug_loc entries are relative to the low_pc of the CU. The loc entry for
28 ; the byval argument in foo.cpp is in the second CU and so should have
29 ; an offset relative to that CU rather than from the beginning of the text
32 ; Checking that we have two compile units with two sets of high/lo_pc.
33 ; CHECK: .debug_info contents
34 ; CHECK: DW_TAG_compile_unit
36 ; CHECK: DW_AT_high_pc
38 ; CHECK: DW_TAG_compile_unit
40 ; CHECK: DW_AT_high_pc
42 ; CHECK: DW_TAG_subprogram
44 ; CHECK: DW_AT_MIPS_linkage_name [DW_FORM_strp]{{.*}}"_Z3baz1A"
45 ; CHECK-NOT: {{DW_TAG|NULL}}
46 ; CHECK: DW_TAG_formal_parameter
47 ; CHECK-NEXT: DW_AT_name [DW_FORM_strp]{{.*}}"a"
48 ; CHECK: DW_AT_location [DW_FORM_sec_offset] (0x00000000)
50 ; CHECK: DW_TAG_variable
51 ; CHECK: DW_AT_location [DW_FORM_exprloc]
52 ; CHECK-NOT: DW_AT_location
54 ; CHECK: .debug_loc contents:
55 ; CHECK: 0x00000000: Beginning address offset: 0x0000000000000000
56 ; CHECK: Ending address offset: 0x000000000000001a
58 %struct.A = type { i32 (...)**, i32 }
60 ; Function Attrs: nounwind
61 define i32 @_Z3bari(i32 %b) #0 {
63 %b.addr = alloca i32, align 4
64 store i32 %b, i32* %b.addr, align 4
65 call void @llvm.dbg.declare(metadata !{i32* %b.addr}, metadata !21), !dbg !22
66 %0 = load i32* %b.addr, align 4, !dbg !23
67 %add = add nsw i32 %0, 4, !dbg !23
68 ret i32 %add, !dbg !23
71 ; Function Attrs: nounwind readnone
72 declare void @llvm.dbg.declare(metadata, metadata) #1
74 define void @_Z3baz1A(%struct.A* %a) #2 {
76 %z = alloca i32, align 4
77 call void @llvm.dbg.declare(metadata !{%struct.A* %a}, metadata !24), !dbg !25
78 call void @llvm.dbg.declare(metadata !{i32* %z}, metadata !26), !dbg !27
79 store i32 2, i32* %z, align 4, !dbg !27
80 %var = getelementptr inbounds %struct.A* %a, i32 0, i32 1, !dbg !28
81 %0 = load i32* %var, align 4, !dbg !28
82 %cmp = icmp sgt i32 %0, 2, !dbg !28
83 br i1 %cmp, label %if.then, label %if.end, !dbg !28
85 if.then: ; preds = %entry
86 %1 = load i32* %z, align 4, !dbg !30
87 %inc = add nsw i32 %1, 1, !dbg !30
88 store i32 %inc, i32* %z, align 4, !dbg !30
89 br label %if.end, !dbg !30
91 if.end: ; preds = %if.then, %entry
92 %call = call signext i8 @_ZN1A3fooEv(%struct.A* %a), !dbg !31
93 %conv = sext i8 %call to i32, !dbg !31
94 %cmp1 = icmp eq i32 %conv, 97, !dbg !31
95 br i1 %cmp1, label %if.then2, label %if.end4, !dbg !31
97 if.then2: ; preds = %if.end
98 %2 = load i32* %z, align 4, !dbg !33
99 %inc3 = add nsw i32 %2, 1, !dbg !33
100 store i32 %inc3, i32* %z, align 4, !dbg !33
101 br label %if.end4, !dbg !33
103 if.end4: ; preds = %if.then2, %if.end
107 declare signext i8 @_ZN1A3fooEv(%struct.A*) #2
109 attributes #0 = { nounwind "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
110 attributes #1 = { nounwind readnone }
111 attributes #2 = { "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
113 !llvm.dbg.cu = !{!0, !9}
114 !llvm.module.flags = !{!18, !19}
115 !llvm.ident = !{!20, !20}
117 !0 = metadata !{i32 786449, metadata !1, i32 4, metadata !"clang version 3.5.0 (210479)", i1 false, metadata !"", i32 0, metadata !2, metadata !2, metadata !3, metadata !2, metadata !2, metadata !"", i32 1} ; [ DW_TAG_compile_unit ] [/llvm_cmake_gcc/debug-loc-offset1.cc] [DW_LANG_C_plus_plus]
118 !1 = metadata !{metadata !"debug-loc-offset1.cc", metadata !"/llvm_cmake_gcc"}
120 !3 = metadata !{metadata !4}
121 !4 = metadata !{i32 786478, metadata !1, metadata !5, metadata !"bar", metadata !"bar", metadata !"_Z3bari", i32 1, metadata !6, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 false, i32 (i32)* @_Z3bari, null, null, metadata !2, i32 1} ; [ DW_TAG_subprogram ] [line 1] [def] [bar]
122 !5 = metadata !{i32 786473, metadata !1} ; [ DW_TAG_file_type ] [/llvm_cmake_gcc/debug-loc-offset1.cc]
123 !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 ]
124 !7 = metadata !{metadata !8, metadata !8}
125 !8 = 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]
126 !9 = metadata !{i32 786449, metadata !10, i32 4, metadata !"clang version 3.5.0 (210479)", i1 false, metadata !"", i32 0, metadata !2, metadata !11, metadata !13, metadata !2, metadata !2, metadata !"", i32 1} ; [ DW_TAG_compile_unit ] [/llvm_cmake_gcc/debug-loc-offset2.cc] [DW_LANG_C_plus_plus]
127 !10 = metadata !{metadata !"debug-loc-offset2.cc", metadata !"/llvm_cmake_gcc"}
128 !11 = metadata !{metadata !12}
129 !12 = metadata !{i32 786451, metadata !10, null, metadata !"A", i32 1, i64 0, i64 0, i32 0, i32 4, null, null, i32 0, null, null, metadata !"_ZTS1A"} ; [ DW_TAG_structure_type ] [A] [line 1, size 0, align 0, offset 0] [decl] [from ]
130 !13 = metadata !{metadata !14}
131 !14 = metadata !{i32 786478, metadata !10, metadata !15, metadata !"baz", metadata !"baz", metadata !"_Z3baz1A", i32 6, metadata !16, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 false, void (%struct.A*)* @_Z3baz1A, null, null, metadata !2, i32 6} ; [ DW_TAG_subprogram ] [line 6] [def] [baz]
132 !15 = metadata !{i32 786473, metadata !10} ; [ DW_TAG_file_type ] [/llvm_cmake_gcc/debug-loc-offset2.cc]
133 !16 = metadata !{i32 786453, i32 0, null, metadata !"", i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !17, i32 0, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
134 !17 = metadata !{null, metadata !12}
135 !18 = metadata !{i32 2, metadata !"Dwarf Version", i32 4}
136 !19 = metadata !{i32 2, metadata !"Debug Info Version", i32 1}
137 !20 = metadata !{metadata !"clang version 3.5.0 (210479)"}
138 !21 = metadata !{i32 786689, metadata !4, metadata !"b", metadata !5, i32 16777217, metadata !8, i32 0, i32 0} ; [ DW_TAG_arg_variable ] [b] [line 1]
139 !22 = metadata !{i32 1, i32 0, metadata !4, null}
140 !23 = metadata !{i32 2, i32 0, metadata !4, null}
141 !24 = metadata !{i32 786689, metadata !14, metadata !"a", metadata !15, i32 16777222, metadata !"_ZTS1A", i32 8192, i32 0} ; [ DW_TAG_arg_variable ] [a] [line 6]
142 !25 = metadata !{i32 6, i32 0, metadata !14, null}
143 !26 = metadata !{i32 786688, metadata !14, metadata !"z", metadata !15, i32 7, metadata !8, i32 0, i32 0} ; [ DW_TAG_auto_variable ] [z] [line 7]
144 !27 = metadata !{i32 7, i32 0, metadata !14, null}
145 !28 = metadata !{i32 8, i32 0, metadata !29, null} ; [ DW_TAG_imported_declaration ]
146 !29 = metadata !{i32 786443, metadata !10, metadata !14, i32 8, i32 0, i32 0, i32 0} ; [ DW_TAG_lexical_block ] [/llvm_cmake_gcc/debug-loc-offset2.cc]
147 !30 = metadata !{i32 9, i32 0, metadata !29, null}
148 !31 = metadata !{i32 10, i32 0, metadata !32, null}
149 !32 = metadata !{i32 786443, metadata !10, metadata !14, i32 10, i32 0, i32 0, i32 1} ; [ DW_TAG_lexical_block ] [/llvm_cmake_gcc/debug-loc-offset2.cc]
150 !33 = metadata !{i32 11, i32 0, metadata !32, null}
151 !34 = metadata !{i32 12, i32 0, metadata !14, null}