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
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
|
; RUN: llc -generate-arange-section < %s | FileCheck %s
; -- header --
; CHECK: .short 2 # DWARF Arange version number
; CHECK-NEXT: .long .L.debug_info_begin0
; CHECK-NEXT: .byte 8 # Address Size (in bytes)
; CHECK-NEXT: .byte 0 # Segment Size (in bytes)
; -- alignment --
; CHECK-NEXT: .zero 4,255
; <data section> - it should have made one span covering all vars in this CU.
; CHECK-NEXT: .quad some_data
; CHECK-NEXT: .quad .Ldebug_end0-some_data
; <other sections> - it should have made one span covering all vars in this CU.
; CHECK-NEXT: .quad some_other
; CHECK-NEXT: .quad .Ldebug_end1-some_other
; <common symbols> - it should have made one span for each symbol.
; CHECK-NEXT: .quad some_bss
; CHECK-NEXT: .quad 4
; <text section> - it should have made one span covering all functions in this CU.
; CHECK-NEXT: .quad .Lfunc_begin0
; CHECK-NEXT: .quad .Ldebug_end3-.Lfunc_begin0
; -- finish --
; CHECK-NEXT: # ARange terminator
; -- source code --
; Generated from: "clang -c -g -emit-llvm"
;
; int some_data = 4;
; int some_bss;
; int some_other __attribute__ ((section ("strange+section"))) = 5;
;
; void some_code()
; {
; some_bss += some_data + some_other;
; }
target triple = "x86_64-unknown-linux-gnu"
@some_data = global i32 4, align 4
@some_other = global i32 5, section "strange+section", align 4
@some_bss = common global i32 0, align 4
define void @some_code() {
entry:
%0 = load i32, i32* @some_data, align 4, !dbg !14
%1 = load i32, i32* @some_other, align 4, !dbg !14
%add = add nsw i32 %0, %1, !dbg !14
%2 = load i32, i32* @some_bss, align 4, !dbg !14
%add1 = add nsw i32 %2, %add, !dbg !14
store i32 %add1, i32* @some_bss, align 4, !dbg !14
ret void, !dbg !15
}
!llvm.dbg.cu = !{!0}
!llvm.module.flags = !{!13, !16}
!0 = !MDCompileUnit(language: DW_LANG_C99, producer: "clang version 3.4 ", isOptimized: false, emissionKind: 0, file: !1, enums: !2, retainedTypes: !2, subprograms: !3, globals: !8, imports: !2)
!1 = !MDFile(filename: "test.c", directory: "/home/kayamon")
!2 = !{}
!3 = !{!4}
!4 = !MDSubprogram(name: "some_code", line: 5, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, scopeLine: 6, file: !1, scope: !5, type: !6, function: void ()* @some_code, variables: !2)
!5 = !MDFile(filename: "test.c", directory: "/home/kayamon")
!6 = !MDSubroutineType(types: !7)
!7 = !{null}
!8 = !{!9, !11, !12}
!9 = !MDGlobalVariable(name: "some_data", line: 1, isLocal: false, isDefinition: true, scope: null, file: !5, type: !10, variable: i32* @some_data)
!10 = !MDBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
!11 = !MDGlobalVariable(name: "some_other", line: 3, isLocal: false, isDefinition: true, scope: null, file: !5, type: !10, variable: i32* @some_other)
!12 = !MDGlobalVariable(name: "some_bss", line: 2, isLocal: false, isDefinition: true, scope: null, file: !5, type: !10, variable: i32* @some_bss)
!13 = !{i32 2, !"Dwarf Version", i32 4}
!14 = !MDLocation(line: 7, scope: !4)
!15 = !MDLocation(line: 8, scope: !4)
!16 = !{i32 1, !"Debug Info Version", i32 3}
|
