1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
|
; REQUIRES: object-emission
; PR 19261
; RUN: %llc_dwarf -fast-isel=false -O0 -filetype=obj %s -o %t
; RUN: llvm-dwarfdump %t | FileCheck %s
; CHECK: {{0x[0-9a-f]+}} 1 0 1 0 0 is_stmt
; CHECK: {{0x[0-9a-f]+}} 2 0 1 0 0 is_stmt
; CHECK: {{0x[0-9a-f]+}} 4 0 1 0 0 is_stmt
; IR generated from clang -O0 -g with the following source:
;void foo(int i){
; switch(i){
; default:
; break;
; }
; return;
;}
; Function Attrs: nounwind
define void @foo(i32 %i) #0 {
entry:
%i.addr = alloca i32, align 4
store i32 %i, i32* %i.addr, align 4
call void @llvm.dbg.declare(metadata i32* %i.addr, metadata !12, metadata !MDExpression()), !dbg !13
%0 = load i32, i32* %i.addr, align 4, !dbg !14
switch i32 %0, label %sw.default [
], !dbg !14
sw.epilog: ; preds = %sw.default
ret void, !dbg !17
sw.default: ; preds = %entry
br label %sw.epilog, !dbg !15
}
; Function Attrs: nounwind readnone
declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
attributes #0 = { nounwind "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" }
attributes #1 = { nounwind readnone }
!llvm.dbg.cu = !{!0}
!llvm.module.flags = !{!9, !10}
!llvm.ident = !{!11}
!0 = !MDCompileUnit(language: DW_LANG_C99, producer: "clang version 3.5.0 (204712)", isOptimized: false, emissionKind: 1, file: !1, enums: !2, retainedTypes: !2, subprograms: !3, globals: !2, imports: !2)
!1 = !MDFile(filename: "test.c", directory: "D:\5Cwork\5CEPRs\5C396363")
!2 = !{}
!3 = !{!4}
!4 = !MDSubprogram(name: "foo", line: 1, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 1, file: !1, scope: !5, type: !6, function: void (i32)* @foo, variables: !2)
!5 = !MDFile(filename: "test.c", directory: "D:CworkCEPRsC396363")
!6 = !MDSubroutineType(types: !7)
!7 = !{null, !8}
!8 = !MDBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
!9 = !{i32 2, !"Dwarf Version", i32 4}
!10 = !{i32 1, !"Debug Info Version", i32 3}
!11 = !{!"clang version 3.5.0 (204712)"}
!12 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "i", line: 1, arg: 1, scope: !4, file: !5, type: !8)
!13 = !MDLocation(line: 1, scope: !4)
!14 = !MDLocation(line: 2, scope: !4)
!15 = !MDLocation(line: 4, scope: !16)
!16 = distinct !MDLexicalBlock(line: 2, column: 0, file: !1, scope: !4)
!17 = !MDLocation(line: 6, scope: !4)
|
