1 ; REQUIRES: object-emission
3 ; RUN: %llc_dwarf -O0 -filetype=obj < %s | llvm-dwarfdump -debug-dump=info - | FileCheck %s
6 ; $ clang++ a.cpp b.cpp -g -c -emit-llvm
7 ; $ llvm-link a.bc b.bc -o ab.bc
8 ; $ opt -inline ab.bc -o ab-opt.bc
16 ; int __attribute__((always_inline)) func(int x) {
20 ; Ensure that func inlined into main is described and references the abstract
21 ; definition in b.cpp's CU.
23 ; CHECK: DW_TAG_compile_unit
24 ; CHECK: DW_AT_name {{.*}} "a.cpp"
25 ; CHECK: DW_TAG_subprogram
26 ; CHECK: DW_AT_type [DW_FORM_ref_addr] (0x00000000[[INT:.*]])
27 ; CHECK: DW_TAG_inlined_subroutine
29 ; CHECK: DW_AT_abstract_origin {{.*}}[[ABS_FUNC:........]])
30 ; CHECK: DW_TAG_formal_parameter
32 ; CHECK: DW_AT_abstract_origin {{.*}}[[ABS_VAR:........]])
34 ; Check the abstract definition is in the 'b.cpp' CU and doesn't contain any
35 ; concrete information (address range or variable location)
36 ; CHECK: DW_TAG_compile_unit
37 ; CHECK: DW_AT_name {{.*}} "b.cpp"
38 ; CHECK: 0x[[ABS_FUNC]]: DW_TAG_subprogram
39 ; CHECK-NOT: DW_AT_low_pc
40 ; CHECK: 0x[[ABS_VAR]]: DW_TAG_formal_parameter
42 ; CHECK-NOT: DW_AT_location
43 ; CHECK: DW_AT_type [DW_FORM_ref4] {{.*}} {0x[[INT]]}
44 ; CHECK-NOT: DW_AT_location
46 ; CHECK: 0x[[INT]]: DW_TAG_base_type
48 ; CHECK: DW_AT_name {{.*}} "int"
50 ; Check the concrete out of line definition references the abstract and
51 ; provides the address range and variable location
52 ; CHECK: DW_TAG_subprogram
56 ; CHECK: DW_AT_abstract_origin {{.*}} {0x[[ABS_FUNC]]}
57 ; CHECK: DW_TAG_formal_parameter
59 ; CHECK: DW_AT_abstract_origin {{.*}} {0x[[ABS_VAR]]}
60 ; CHECK: DW_AT_location
63 @i = external global i32
65 ; Function Attrs: uwtable
66 define i32 @main() #0 {
68 %x.addr.i = alloca i32, align 4
69 %retval = alloca i32, align 4
70 store i32 0, i32* %retval
71 %0 = load i32* @i, align 4, !dbg !19
72 %1 = bitcast i32* %x.addr.i to i8*
73 call void @llvm.lifetime.start(i64 4, i8* %1)
74 store i32 %0, i32* %x.addr.i, align 4
75 call void @llvm.dbg.declare(metadata !{i32* %x.addr.i}, metadata !20), !dbg !21
76 %2 = load i32* %x.addr.i, align 4, !dbg !22
77 %mul.i = mul nsw i32 %2, 2, !dbg !22
78 %3 = bitcast i32* %x.addr.i to i8*, !dbg !22
79 call void @llvm.lifetime.end(i64 4, i8* %3), !dbg !22
80 ret i32 %mul.i, !dbg !19
83 ; Function Attrs: alwaysinline nounwind uwtable
84 define i32 @_Z4funci(i32 %x) #1 {
86 %x.addr = alloca i32, align 4
87 store i32 %x, i32* %x.addr, align 4
88 call void @llvm.dbg.declare(metadata !{i32* %x.addr}, metadata !20), !dbg !23
89 %0 = load i32* %x.addr, align 4, !dbg !24
90 %mul = mul nsw i32 %0, 2, !dbg !24
91 ret i32 %mul, !dbg !24
94 ; Function Attrs: nounwind readnone
95 declare void @llvm.dbg.declare(metadata, metadata) #2
97 ; Function Attrs: nounwind
98 declare void @llvm.lifetime.start(i64, i8* nocapture) #3
100 ; Function Attrs: nounwind
101 declare void @llvm.lifetime.end(i64, i8* nocapture) #3
103 attributes #0 = { 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" }
104 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" }
105 attributes #2 = { nounwind readnone }
106 attributes #3 = { nounwind }
108 !llvm.dbg.cu = !{!0, !9}
109 !llvm.module.flags = !{!16, !17}
110 !llvm.ident = !{!18, !18}
112 !0 = metadata !{i32 786449, metadata !1, i32 4, metadata !"clang version 3.5.0 ", i1 false, metadata !"", i32 0, metadata !2, metadata !2, metadata !3, metadata !2, metadata !2, metadata !"", i32 1} ; [ DW_TAG_compile_unit ] [/tmp/dbginfo/a.cpp] [DW_LANG_C_plus_plus]
113 !1 = metadata !{metadata !"a.cpp", metadata !"/tmp/dbginfo"}
115 !3 = metadata !{metadata !4}
116 !4 = metadata !{i32 786478, metadata !1, metadata !5, metadata !"main", metadata !"main", metadata !"", i32 3, metadata !6, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 false, i32 ()* @main, null, null, metadata !2, i32 3} ; [ DW_TAG_subprogram ] [line 3] [def] [main]
117 !5 = metadata !{i32 786473, metadata !1} ; [ DW_TAG_file_type ] [/tmp/dbginfo/a.cpp]
118 !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 ]
119 !7 = metadata !{metadata !8}
120 !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]
121 !9 = metadata !{i32 786449, metadata !10, i32 4, metadata !"clang version 3.5.0 ", i1 false, metadata !"", i32 0, metadata !2, metadata !2, metadata !11, metadata !2, metadata !2, metadata !"", i32 1} ; [ DW_TAG_compile_unit ] [/tmp/dbginfo/b.cpp] [DW_LANG_C_plus_plus]
122 !10 = metadata !{metadata !"b.cpp", metadata !"/tmp/dbginfo"}
123 !11 = metadata !{metadata !12}
124 !12 = metadata !{i32 786478, metadata !10, metadata !13, metadata !"func", metadata !"func", metadata !"_Z4funci", i32 1, metadata !14, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 false, i32 (i32)* @_Z4funci, null, null, metadata !2, i32 1} ; [ DW_TAG_subprogram ] [line 1] [def] [func]
125 !13 = metadata !{i32 786473, metadata !10} ; [ DW_TAG_file_type ] [/tmp/dbginfo/b.cpp]
126 !14 = metadata !{i32 786453, i32 0, null, metadata !"", i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !15, i32 0, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
127 !15 = metadata !{metadata !8, metadata !8}
128 !16 = metadata !{i32 2, metadata !"Dwarf Version", i32 4}
129 !17 = metadata !{i32 2, metadata !"Debug Info Version", i32 1}
130 !18 = metadata !{metadata !"clang version 3.5.0 "}
131 !19 = metadata !{i32 4, i32 0, metadata !4, null}
132 !20 = metadata !{i32 786689, metadata !12, metadata !"x", metadata !13, i32 16777217, metadata !8, i32 0, i32 0} ; [ DW_TAG_arg_variable ] [x] [line 1]
133 !21 = metadata !{i32 1, i32 0, metadata !12, metadata !19}
134 !22 = metadata !{i32 2, i32 0, metadata !12, metadata !19}
135 !23 = metadata !{i32 1, i32 0, metadata !12, null}
136 !24 = metadata !{i32 2, i32 0, metadata !12, null}