1 ; REQUIRES: object-emission
2 ; RUN: %llc_dwarf -O0 -filetype=obj < %s | llvm-dwarfdump - | FileCheck %s
4 ; Generated from the following source compiled with clang++ -gmlt:
6 ; void __attribute__((section("__TEXT,__bar"))) f2() {}
7 ; void __attribute__((always_inline)) f3() { f1(); }
11 ; * -gmlt includes no DW_TAG_subprograms for subprograms without inlined
13 ; * yet still produces DW_AT_ranges and a range list in debug_ranges that
14 ; describes those subprograms
16 ; CHECK: DW_TAG_compile_unit
17 ; CHECK: DW_AT_ranges [DW_FORM_sec_offset] (0x00000000)
18 ; CHECK-NOT: {{DW_TAG|NULL}}
20 ; Omitting the subprograms without inlined subroutines is not possible
21 ; currently on Darwin as dsymutil will drop the whole CU if it has no subprograms
22 ; (which happens with this optimization if there are no inlined subroutines).
24 ; DARWIN: DW_TAG_subprogram
26 ; DARWIN: DW_AT_name {{.*}} "f1"
27 ; DARWIN-NOT: {{DW_TAG|NULL}}
28 ; DARWIN: DW_TAG_subprogram
30 ; DARWIN: DW_AT_name {{.*}} "f2"
31 ; DARWIN-NOT: {{DW_TAG|NULL}}
32 ; DARWIN: DW_TAG_subprogram
34 ; Can't check the abstract_origin value across the DARWIN/CHECK checking and
35 ; ordering, so don't bother - just trust me, it refers to f3 down there.
36 ; DARWIN: DW_AT_abstract_origin
37 ; DARWIN-NOT: {{DW_TAG|NULL}}
40 ; FIXME: Emitting separate abstract definitions is inefficient when we could
41 ; just attach the DW_AT_name to the inlined_subroutine directly. Except that
42 ; would produce many string relocations. Implement string indexing in the
43 ; skeleton CU to address the relocation problem, then remove abstract
44 ; definitions from -gmlt here.
46 ; CHECK: DW_TAG_subprogram
47 ; CHECK-NEXT: DW_AT_name {{.*}} "f3"
49 ; FIXME: We don't really need DW_AT_inline, consumers can ignore this due to
50 ; the absence of high_pc/low_pc/ranges and know that they just need it for
51 ; retrieving the name of a concrete inlined instance
53 ; CHECK-NOT: {{DW_TAG|DW_AT|NULL}}
55 ; Check that we only provide the minimal attributes on a subprogram to save space.
56 ; CHECK: DW_TAG_subprogram
57 ; CHECK-NEXT: DW_AT_low_pc
58 ; CHECK-NEXT: DW_AT_high_pc
59 ; CHECK-NEXT: DW_AT_name
60 ; CHECK-NOT: {{DW_TAG|DW_AT}}
61 ; CHECK: DW_TAG_inlined_subroutine
63 ; As mentioned above - replace DW_AT_abstract_origin with DW_AT_name to save
64 ; space once we have support for string indexing in non-dwo sections
66 ; CHECK-NEXT: DW_AT_abstract_origin {{.*}} "f3"
67 ; CHECK-NEXT: DW_AT_low_pc
68 ; CHECK-NEXT: DW_AT_high_pc
69 ; CHECK-NEXT: DW_AT_call_file
70 ; CHECK-NEXT: DW_AT_call_line
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}}
81 ; CHECK: .debug_ranges contents:
83 ; ... some addresses (depends on platform (such as platforms with function
84 ; reordering in the linker), and looks wonky on platforms with zero values
85 ; written in relocation places (dumper needs to be fixed to read the
86 ; relocations rather than interpret that as the end of a range list))
88 ; CHECK: 00000000 <End of list>
91 ; Check that we don't emit any pubnames or pubtypes under -gmlt
92 ; CHECK: .debug_pubnames contents:
95 ; CHECK: .debug_pubtypes contents:
98 ; Function Attrs: nounwind uwtable
99 define void @_Z2f1v() #0 {
104 ; Function Attrs: nounwind uwtable
105 define void @_Z2f2v() #0 section "__TEXT,__bar" {
110 ; Function Attrs: alwaysinline nounwind uwtable
111 define void @_Z2f3v() #1 {
113 call void @_Z2f1v(), !dbg !15
117 ; Function Attrs: nounwind uwtable
118 define void @_Z2f4v() #0 {
120 call void @_Z2f1v() #2, !dbg !17
124 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" }
125 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" }
126 attributes #2 = { nounwind }
129 !llvm.module.flags = !{!10, !11}
132 !0 = metadata !{metadata !"0x11\004\00clang version 3.6.0 \000\00\000\00\002", metadata !1, metadata !2, metadata !2, metadata !3, metadata !2, metadata !2} ; [ DW_TAG_compile_unit ] [/tmp/dbginfo/gmlt.cpp] [DW_LANG_C_plus_plus]
133 !1 = metadata !{metadata !"gmlt.cpp", metadata !"/tmp/dbginfo"}
135 !3 = metadata !{metadata !4, metadata !7, metadata !8, metadata !9}
136 !4 = metadata !{metadata !"0x2e\00f1\00f1\00\001\000\001\000\006\00256\000\001", metadata !1, metadata !5, metadata !6, null, void ()* @_Z2f1v, null, null, metadata !2} ; [ DW_TAG_subprogram ] [line 1] [def] [f1]
137 !5 = metadata !{metadata !"0x29", metadata !1} ; [ DW_TAG_file_type ] [/tmp/dbginfo/gmlt.cpp]
138 !6 = metadata !{metadata !"0x15\00\000\000\000\000\000\000", i32 0, null, null, metadata !2, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
139 !7 = metadata !{metadata !"0x2e\00f2\00f2\00\002\000\001\000\006\00256\000\002", metadata !1, metadata !5, metadata !6, null, void ()* @_Z2f2v, null, null, metadata !2} ; [ DW_TAG_subprogram ] [line 2] [def] [f2]
140 !8 = metadata !{metadata !"0x2e\00f3\00f3\00\003\000\001\000\006\00256\000\003", metadata !1, metadata !5, metadata !6, null, void ()* @_Z2f3v, null, null, metadata !2} ; [ DW_TAG_subprogram ] [line 3] [def] [f3]
141 !9 = metadata !{metadata !"0x2e\00f4\00f4\00\004\000\001\000\006\00256\000\004", metadata !1, metadata !5, metadata !6, null, void ()* @_Z2f4v, null, null, metadata !2} ; [ DW_TAG_subprogram ] [line 4] [def] [f4]
142 !10 = metadata !{i32 2, metadata !"Dwarf Version", i32 4}
143 !11 = metadata !{i32 2, metadata !"Debug Info Version", i32 2}
144 !12 = metadata !{metadata !"clang version 3.6.0 "}
145 !13 = metadata !{i32 1, i32 12, metadata !4, null}
146 !14 = metadata !{i32 2, i32 53, metadata !7, null}
147 !15 = metadata !{i32 3, i32 44, metadata !8, null}
148 !16 = metadata !{i32 3, i32 50, metadata !8, null}
149 !17 = metadata !{i32 3, i32 44, metadata !8, metadata !18}
150 !18 = metadata !{i32 4, i32 13, metadata !9, null}
151 !19 = metadata !{i32 4, i32 19, metadata !9, null}