1 ; REQUIRES: object-emission
3 ; Generated from the following source compiled with clang++ -gmlt:
5 ; void __attribute__((section("__TEXT,__bar"))) f2() {}
6 ; void __attribute__((always_inline)) f3() { f1(); }
10 ; * -gmlt includes no DW_TAG_subprograms for subprograms without inlined
12 ; * yet still produces DW_AT_ranges and a range list in debug_ranges that
13 ; describes those subprograms
15 ; CHECK: DW_TAG_compile_unit
16 ; CHECK: DW_AT_ranges [DW_FORM_sec_offset] (0x00000000
17 ; CHECK-NOT: {{DW_TAG|NULL}}
19 ; Omitting the subprograms without inlined subroutines is not possible
20 ; currently on Darwin as dsymutil will drop the whole CU if it has no subprograms
21 ; (which happens with this optimization if there are no inlined subroutines).
23 ; DARWIN: DW_TAG_subprogram
25 ; DARWIN: DW_AT_name {{.*}} "f1"
26 ; DARWIN-NOT: {{DW_TAG|NULL}}
27 ; DARWIN: DW_TAG_subprogram
29 ; DARWIN: DW_AT_name {{.*}} "f2"
30 ; DARWIN-NOT: {{DW_TAG|NULL}}
31 ; DARWIN: DW_TAG_subprogram
33 ; Can't check the abstract_origin value across the DARWIN/CHECK checking and
34 ; ordering, so don't bother - just trust me, it refers to f3 down there.
35 ; DARWIN: DW_AT_abstract_origin
36 ; DARWIN-NOT: {{DW_TAG|NULL}}
39 ; FIXME: Emitting separate abstract definitions is inefficient when we could
40 ; just attach the DW_AT_name to the inlined_subroutine directly. Except that
41 ; would produce many string relocations. Implement string indexing in the
42 ; skeleton CU to address the relocation problem, then remove abstract
43 ; definitions from -gmlt here.
45 ; CHECK: DW_TAG_subprogram
46 ; CHECK-NEXT: DW_AT_name {{.*}} "f3"
48 ; FIXME: We don't really need DW_AT_inline, consumers can ignore this due to
49 ; the absence of high_pc/low_pc/ranges and know that they just need it for
50 ; retrieving the name of a concrete inlined instance
52 ; CHECK-NOT: {{DW_TAG|DW_AT|NULL}}
54 ; Check that we only provide the minimal attributes on a subprogram to save space.
55 ; CHECK: DW_TAG_subprogram
56 ; CHECK-NEXT: DW_AT_low_pc
57 ; CHECK-NEXT: DW_AT_high_pc
58 ; CHECK-NEXT: DW_AT_name
59 ; CHECK-NOT: {{DW_TAG|DW_AT}}
60 ; CHECK: DW_TAG_inlined_subroutine
62 ; As mentioned above - replace DW_AT_abstract_origin with DW_AT_name to save
63 ; space once we have support for string indexing in non-dwo sections
65 ; CHECK-NEXT: DW_AT_abstract_origin {{.*}} "f3"
66 ; CHECK-NEXT: DW_AT_low_pc
67 ; CHECK-NEXT: DW_AT_high_pc
68 ; CHECK-NEXT: DW_AT_call_file
69 ; CHECK-NEXT: DW_AT_call_line
70 ; CHECK-NEXT: DW_AT_call_column
72 ; Make sure we don't have any other subprograms here (subprograms with no
73 ; inlined subroutines are omitted by design to save space)
75 ; CHECK-NOT: {{DW_TAG|DW_AT}}
77 ; CHECK-NOT: {{DW_TAG|DW_AT}}
80 ; CHECK: .debug_ranges contents:
82 ; ... some addresses (depends on platform (such as platforms with function
83 ; reordering in the linker), and looks wonky on platforms with zero values
84 ; written in relocation places (dumper needs to be fixed to read the
85 ; relocations rather than interpret that as the end of a range list))
87 ; CHECK: 00000000 <End of list>
90 ; Check that we don't emit any pubnames or pubtypes under -gmlt
91 ; CHECK-NOT: .debug_pubnames contents:
92 ; CHECK-NOT: .debug_pubtypes contents:
94 ; Function Attrs: nounwind uwtable
95 define void @_Z2f1v() #0 !dbg !4 {
100 ; Function Attrs: nounwind uwtable
101 define void @_Z2f2v() #0 section "__TEXT,__bar" !dbg !7 {
106 ; Function Attrs: alwaysinline nounwind uwtable
107 define void @_Z2f3v() #1 !dbg !8 {
109 call void @_Z2f1v(), !dbg !15
113 ; Function Attrs: nounwind uwtable
114 define void @_Z2f4v() #0 !dbg !9 {
116 call void @_Z2f1v() #2, !dbg !17
120 attributes #0 = { nounwind uwtable "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" }
121 attributes #1 = { alwaysinline nounwind uwtable "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" }
122 attributes #2 = { nounwind }
125 !llvm.module.flags = !{!10, !11}
128 !0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.6.0 ", isOptimized: false, emissionKind: LineTablesOnly, file: !1, enums: !2, retainedTypes: !2, globals: !2, imports: !2)
129 !1 = !DIFile(filename: "gmlt.cpp", directory: "/tmp/dbginfo")
131 !4 = distinct !DISubprogram(name: "f1", line: 1, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 1, file: !1, scope: !5, type: !6, retainedNodes: !2)
132 !5 = !DIFile(filename: "gmlt.cpp", directory: "/tmp/dbginfo")
133 !6 = !DISubroutineType(types: !2)
134 !7 = distinct !DISubprogram(name: "f2", line: 2, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 2, file: !1, scope: !5, type: !6, retainedNodes: !2)
135 !8 = distinct !DISubprogram(name: "f3", line: 3, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 3, file: !1, scope: !5, type: !6, retainedNodes: !2)
136 !9 = distinct !DISubprogram(name: "f4", line: 4, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 4, file: !1, scope: !5, type: !6, retainedNodes: !2)
137 !10 = !{i32 2, !"Dwarf Version", i32 4}
138 !11 = !{i32 2, !"Debug Info Version", i32 3}
139 !12 = !{!"clang version 3.6.0 "}
140 !13 = !DILocation(line: 1, column: 12, scope: !4)
141 !14 = !DILocation(line: 2, column: 53, scope: !7)
142 !15 = !DILocation(line: 3, column: 44, scope: !8)
143 !16 = !DILocation(line: 3, column: 50, scope: !8)
144 !17 = !DILocation(line: 3, column: 44, scope: !8, inlinedAt: !18)
145 !18 = !DILocation(line: 4, column: 13, scope: !9)
146 !19 = !DILocation(line: 4, column: 19, scope: !9)