• Home
  • Line#
  • Scopes#
  • Navigate#
  • Raw
  • Download
1; RUN: llc -split-dwarf-file=foo.dwo -O0 %s -function-sections -mtriple=x86_64-unknown-linux-gnu -filetype=obj -o %t
2; RUN: llvm-dwarfdump -debug-abbrev %t | FileCheck --check-prefix=FUNCTION-SECTIONS %s
3; RUN: llvm-readobj --relocations %t | FileCheck --check-prefix=FUNCTION-SECTIONS-RELOCS %s
4
5; RUN: llc -split-dwarf-file=foo.dwo -O0 %s -mtriple=x86_64-unknown-linux-gnu -filetype=obj -o %t
6; RUN: llvm-dwarfdump -debug-abbrev %t | FileCheck --check-prefix=NO-FUNCTION-SECTIONS %s
7
8; RUN: llc -dwarf-version=5 -O0 %s -mtriple=x86_64-unknown-linux-gnu -filetype=obj -o %t
9; RUN: llvm-dwarfdump -v %t | FileCheck --check-prefix=DWARF5 %s
10
11; From:
12; int foo (int a) {
13;   return a+1;
14; }
15; int bar (int b) {
16;   return b+2;
17; }
18
19; With function sections enabled make sure that we have a DW_AT_ranges attribute.
20; FUNCTION-SECTIONS: DW_AT_ranges
21
22; Check that we have a relocation against the .debug_ranges section.
23; FUNCTION-SECTIONS-RELOCS: R_X86_64_32 .debug_ranges 0x0
24
25; Without function sections enabled make sure that we have no DW_AT_ranges attribute.
26; NO-FUNCTION-SECTIONS-NOT: DW_AT_ranges
27; NO-FUNCTION-SECTIONS: DW_AT_low_pc DW_FORM_addr
28; NO-FUNCTION-SECTIONS-NOT: DW_AT_ranges
29
30; For Dwarf 5 check that we neither generate DW_AT_rnglists_base for the CU DIE nor
31; a .debug_rnglists section. There is only 1 CU range with no scope ranges.
32;
33; DWARF5:     .debug_info contents:
34; DWARF5:     DW_TAG_compile_unit
35; DWARF5-NOT: DW_AT_rnglists_base [DW_FORM_sec_offset]
36; DWARF5-NOT: .debug_rnglists contents:
37
38; Function Attrs: nounwind uwtable
39define i32 @foo(i32 %a) #0 !dbg !4 {
40entry:
41  %a.addr = alloca i32, align 4
42  store i32 %a, i32* %a.addr, align 4
43  call void @llvm.dbg.declare(metadata i32* %a.addr, metadata !13, metadata !DIExpression()), !dbg !14
44  %0 = load i32, i32* %a.addr, align 4, !dbg !14
45  %add = add nsw i32 %0, 1, !dbg !14
46  ret i32 %add, !dbg !14
47}
48
49; Function Attrs: nounwind readnone
50declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
51
52; Function Attrs: nounwind uwtable
53define i32 @bar(i32 %b) #0 !dbg !9 {
54entry:
55  %b.addr = alloca i32, align 4
56  store i32 %b, i32* %b.addr, align 4
57  call void @llvm.dbg.declare(metadata i32* %b.addr, metadata !15, metadata !DIExpression()), !dbg !16
58  %0 = load i32, i32* %b.addr, align 4, !dbg !16
59  %add = add nsw i32 %0, 2, !dbg !16
60  ret i32 %add, !dbg !16
61}
62
63attributes #0 = { nounwind uwtable "less-precise-fpmad"="false" "frame-pointer"="all" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
64attributes #1 = { nounwind readnone }
65
66!llvm.dbg.cu = !{!0}
67!llvm.module.flags = !{!10, !11}
68!llvm.ident = !{!12}
69
70!0 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.5.0 (trunk 204164) (llvm/trunk 204183)", isOptimized: false, emissionKind: FullDebug, file: !1, enums: !2, retainedTypes: !2, globals: !2, imports: !2)
71!1 = !DIFile(filename: "z.c", directory: "/usr/local/google/home/echristo")
72!2 = !{}
73!4 = distinct !DISubprogram(name: "foo", line: 1, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 1, file: !1, scope: !5, type: !6, retainedNodes: !2)
74!5 = !DIFile(filename: "z.c", directory: "/usr/local/google/home/echristo")
75!6 = !DISubroutineType(types: !7)
76!7 = !{!8, !8}
77!8 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
78!9 = distinct !DISubprogram(name: "bar", line: 2, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 2, file: !1, scope: !5, type: !6, retainedNodes: !2)
79!10 = !{i32 2, !"Dwarf Version", i32 4}
80!11 = !{i32 1, !"Debug Info Version", i32 3}
81!12 = !{!"clang version 3.5.0 (trunk 204164) (llvm/trunk 204183)"}
82!13 = !DILocalVariable(name: "a", line: 1, arg: 1, scope: !4, file: !5, type: !8)
83!14 = !DILocation(line: 1, scope: !4)
84!15 = !DILocalVariable(name: "b", line: 2, arg: 1, scope: !9, file: !5, type: !8)
85!16 = !DILocation(line: 2, scope: !9)
86