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Debug info: Allow aggregate types to be described by constants. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@225378 91177308-0d34-0410-b5e6-96231b3b80d8 Adrian Prantl 5 years ago
2 changed file(s) with 123 addition(s) and 2 deletion(s). Raw diff Collapse all Expand all
629629 // FIXME: reference and rvalue_reference /probably/ shouldn't be allowed
630630 // here, but accept them for now due to a bug in SROA producing bogus
631631 // dbg.values.
632 if (T == dwarf::DW_TAG_pointer_type ||
632 if (T == dwarf::DW_TAG_array_type ||
633 T == dwarf::DW_TAG_class_type ||
634 T == dwarf::DW_TAG_pointer_type ||
633635 T == dwarf::DW_TAG_ptr_to_member_type ||
634636 T == dwarf::DW_TAG_reference_type ||
635 T == dwarf::DW_TAG_rvalue_reference_type)
637 T == dwarf::DW_TAG_rvalue_reference_type ||
638 T == dwarf::DW_TAG_structure_type)
636639 return true;
637640 assert(T == dwarf::DW_TAG_typedef || T == dwarf::DW_TAG_const_type ||
638641 T == dwarf::DW_TAG_volatile_type ||
0 ; RUN: llc %s -filetype=obj -o %t.o
1 ; RUN: llvm-dwarfdump -debug-dump=info %t.o | FileCheck %s
2 ; Test emitting a constant for an aggregate type.
3 ;
4 ; clang -S -O1 -emit-llvm
5 ;
6 ; typedef struct { unsigned i; } S;
7 ;
8 ; unsigned foo(S s) {
9 ; s.i = 1;
10 ; return s.i;
11 ; }
12 ;
13 ; class C { public: unsigned i; };
14 ;
15 ; unsigned foo(C c) {
16 ; c.i = 2;
17 ; return c.i;
18 ; }
19 ;
20 ; unsigned bar() {
21 ; int a[1] = { 3 };
22 ; return a[0];
23 ; }
24 ;
25 ; CHECK: DW_TAG_formal_parameter
26 ; CHECK-NEXT: DW_AT_const_value [DW_FORM_udata] (1)
27 ; CHECK-NEXT: DW_AT_name {{.*}} "s"
28 ;
29 ; CHECK: DW_TAG_formal_parameter
30 ; CHECK-NEXT: DW_AT_const_value [DW_FORM_udata] (2)
31 ; CHECK-NEXT: DW_AT_name {{.*}} "c"
32 ;
33 ; CHECK: DW_TAG_variable
34 ; CHECK-NEXT: DW_AT_const_value [DW_FORM_udata] (3)
35 ; CHECK-NEXT: DW_AT_name {{.*}} "a"
36
37 ; ModuleID = 'sroasplit-4.cpp'
38 target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
39 target triple = "x86_64-apple-macosx10.10.0"
40
41 ; Function Attrs: nounwind readnone ssp uwtable
42 define i32 @_Z3foo1S(i32 %s.coerce) #0 {
43 entry:
44 tail call void @llvm.dbg.value(metadata i32 %s.coerce, i64 0, metadata !18, metadata !37), !dbg !38
45 tail call void @llvm.dbg.value(metadata i32 1, i64 0, metadata !18, metadata !37), !dbg !38
46 ret i32 1, !dbg !39
47 }
48
49 ; Function Attrs: nounwind readnone ssp uwtable
50 define i32 @_Z3foo1C(i32 %c.coerce) #0 {
51 entry:
52 tail call void @llvm.dbg.value(metadata i32 %c.coerce, i64 0, metadata !23, metadata !37), !dbg !40
53 tail call void @llvm.dbg.value(metadata i32 2, i64 0, metadata !23, metadata !37), !dbg !40
54 ret i32 2, !dbg !41
55 }
56
57 ; Function Attrs: nounwind readnone ssp uwtable
58 define i32 @_Z3barv() #0 {
59 entry:
60 tail call void @llvm.dbg.value(metadata i32 3, i64 0, metadata !28, metadata !37), !dbg !42
61 ret i32 3, !dbg !43
62 }
63
64 ; Function Attrs: nounwind readnone
65 declare void @llvm.dbg.value(metadata, i64, metadata, metadata) #1
66
67 attributes #0 = { nounwind readnone ssp uwtable }
68 attributes #1 = { nounwind readnone }
69
70 !llvm.dbg.cu = !{!0}
71 !llvm.module.flags = !{!33, !34, !35}
72 !llvm.ident = !{!36}
73
74 !0 = !{!"0x11\004\00clang version 3.6.0 (trunk 225364) (llvm/trunk 225366)\001\00\000\00\001", !1, !2, !3, !11, !2, !2} ; [ DW_TAG_compile_unit ] [/sroasplit-4.cpp] [DW_LANG_C_plus_plus]
75 !1 = !{!"sroasplit-4.cpp", !""}
76 !2 = !{}
77 !3 = !{!4, !8}
78 !4 = !{!"0x13\00\001\0032\0032\000\000\000", !1, null, null, !5, null, null, !"_ZTS1S"} ; [ DW_TAG_structure_type ] [line 1, size 32, align 32, offset 0] [def] [from ]
79 !5 = !{!6}
80 !6 = !{!"0xd\00i\001\0032\0032\000\000", !1, !"_ZTS1S", !7} ; [ DW_TAG_member ] [i] [line 1, size 32, align 32, offset 0] [from unsigned int]
81 !7 = !{!"0x24\00unsigned int\000\0032\0032\000\000\007", null, null} ; [ DW_TAG_base_type ] [unsigned int] [line 0, size 32, align 32, offset 0, enc DW_ATE_unsigned]
82 !8 = !{!"0x2\00C\008\0032\0032\000\000\000", !1, null, null, !9, null, null, !"_ZTS1C"} ; [ DW_TAG_class_type ] [C] [line 8, size 32, align 32, offset 0] [def] [from ]
83 !9 = !{!10}
84 !10 = !{!"0xd\00i\008\0032\0032\000\003", !1, !"_ZTS1C", !7} ; [ DW_TAG_member ] [i] [line 8, size 32, align 32, offset 0] [public] [from unsigned int]
85 !11 = !{!12, !19, !24}
86 !12 = !{!"0x2e\00foo\00foo\00_Z3foo1S\003\000\001\000\000\00256\001\003", !1, !13, !14, null, i32 (i32)* @_Z3foo1S, null, null, !17} ; [ DW_TAG_subprogram ] [line 3] [def] [foo]
87 !13 = !{!"0x29", !1} ; [ DW_TAG_file_type ] [/sroasplit-4.cpp]
88 !14 = !{!"0x15\00\000\000\000\000\000\000", null, null, null, !15, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
89 !15 = !{!7, !16}
90 !16 = !{!"0x16\00S\001\000\000\000\000", !1, null, !"_ZTS1S"} ; [ DW_TAG_typedef ] [S] [line 1, size 0, align 0, offset 0] [from _ZTS1S]
91 !17 = !{!18}
92 !18 = !{!"0x101\00s\0016777219\000", !12, !13, !16} ; [ DW_TAG_arg_variable ] [s] [line 3]
93 !19 = !{!"0x2e\00foo\00foo\00_Z3foo1C\0010\000\001\000\000\00256\001\0010", !1, !13, !20, null, i32 (i32)* @_Z3foo1C, null, null, !22} ; [ DW_TAG_subprogram ] [line 10] [def] [foo]
94 !20 = !{!"0x15\00\000\000\000\000\000\000", null, null, null, !21, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
95 !21 = !{!7, !"_ZTS1C"}
96 !22 = !{!23}
97 !23 = !{!"0x101\00c\0016777226\000", !19, !13, !"_ZTS1C"} ; [ DW_TAG_arg_variable ] [c] [line 10]
98 !24 = !{!"0x2e\00bar\00bar\00_Z3barv\0015\000\001\000\000\00256\001\0015", !1, !13, !25, null, i32 ()* @_Z3barv, null, null, !27} ; [ DW_TAG_subprogram ] [line 15] [def] [bar]
99 !25 = !{!"0x15\00\000\000\000\000\000\000", null, null, null, !26, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
100 !26 = !{!7}
101 !27 = !{!28}
102 !28 = !{!"0x100\00a\0016\000", !24, !13, !29} ; [ DW_TAG_auto_variable ] [a] [line 16]
103 !29 = !{!"0x1\00\000\0032\0032\000\000\000", null, null, !30, !31, null, null, null} ; [ DW_TAG_array_type ] [line 0, size 32, align 32, offset 0] [from int]
104 !30 = !{!"0x24\00int\000\0032\0032\000\000\005", null, null} ; [ DW_TAG_base_type ] [int] [line 0, size 32, align 32, offset 0, enc DW_ATE_signed]
105 !31 = !{!32}
106 !32 = !{!"0x21\000\001"} ; [ DW_TAG_subrange_type ] [0, 0]
107 !33 = !{i32 2, !"Dwarf Version", i32 2}
108 !34 = !{i32 2, !"Debug Info Version", i32 2}
109 !35 = !{i32 1, !"PIC Level", i32 2}
110 !36 = !{!"clang version 3.6.0 (trunk 225364) (llvm/trunk 225366)"}
111 !37 = !{!"0x102"} ; [ DW_TAG_expression ]
112 !38 = !{i32 3, i32 16, !12, null}
113 !39 = !{i32 5, i32 3, !12, null}
114 !40 = !{i32 10, i32 16, !19, null}
115 !41 = !{i32 12, i32 3, !19, null}
116 !42 = !{i32 16, i32 6, !24, null}
117 !43 = !{i32 17, i32 3, !24, null}