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
| ; REQUIRES: asserts
; RUN: opt < %s -globalopt -stats -disable-output 2>&1 | FileCheck %s
; CHECK: 1 globalopt - Number of global vars shrunk to booleans
source_filename = "test/Transforms/GlobalOpt/2009-03-05-dbg.ll"
@Stop = internal global i32 0, !dbg !0
; Function Attrs: nounwind ssp
define i32 @foo(i32 %i) #0 {
entry:
%"alloca point" = bitcast i32 0 to i32
call void @llvm.dbg.value(metadata i32 %i, metadata !8, metadata !12), !dbg !13
%0 = icmp eq i32 %i, 1, !dbg !13
br i1 %0, label %bb, label %bb1, !dbg !13
bb: ; preds = %entry
store i32 0, i32* @Stop, align 4, !dbg !15
%1 = mul nsw i32 %i, 42, !dbg !16
call void @llvm.dbg.value(metadata i32 %1, metadata !8, metadata !12), !dbg !16
br label %bb2, !dbg !16
bb1: ; preds = %entry
store i32 1, i32* @Stop, align 4, !dbg !17
br label %bb2, !dbg !17
bb2: ; preds = %bb1, %bb
%i_addr.0 = phi i32 [ %1, %bb ], [ %i, %bb1 ]
br label %return, !dbg !18
return: ; preds = %bb2
ret i32 %i_addr.0, !dbg !18
}
; Function Attrs: nounwind readnone
declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
; Function Attrs: nounwind ssp
define i32 @bar() #0 {
entry:
%"alloca point" = bitcast i32 0 to i32
%0 = load i32, i32* @Stop, align 4, !dbg !19
%1 = icmp eq i32 %0, 1, !dbg !19
br i1 %1, label %bb, label %bb1, !dbg !19
bb: ; preds = %entry
br label %bb2, !dbg !24
bb1: ; preds = %entry
br label %bb2, !dbg !25
bb2: ; preds = %bb1, %bb
%.0 = phi i32 [ 0, %bb ], [ 1, %bb1 ]
br label %return, !dbg !25
return: ; preds = %bb2
ret i32 %.0, !dbg !25
}
; Function Attrs: nounwind readnone
declare void @llvm.dbg.value(metadata, metadata, metadata) #1
attributes #0 = { nounwind ssp }
attributes #1 = { nounwind readnone }
!llvm.dbg.cu = !{!2}
!llvm.module.flags = !{!6, !7}
!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression())
!1 = !DIGlobalVariable(name: "Stop", scope: !2, file: !3, line: 2, type: !5, isLocal: true, isDefinition: true)
!2 = distinct !DICompileUnit(language: DW_LANG_C89, file: !3, producer: "4.2.1 (Based on Apple Inc. build 5658) (LLVM build)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, globals: !4)
!3 = !DIFile(filename: "g.c", directory: "/tmp")
!4 = !{!0}
!5 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
!6 = !{i32 2, !"Dwarf Version", i32 2}
!7 = !{i32 2, !"Debug Info Version", i32 3}
!8 = !DILocalVariable(name: "i", arg: 1, scope: !9, file: !3, line: 4, type: !5)
!9 = distinct !DISubprogram(name: "foo", linkageName: "foo", scope: !2, file: !3, line: 4, type: !10, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, unit: !2)!10 = !DISubroutineType(types: !11)!11 = !{!5, !5}!12 = !DIExpression()!13 = !DILocation(line: 5, scope: !14)!14 = distinct !DILexicalBlock(scope: !9, file: !3)!15 = !DILocation(line: 6, scope: !14)!16 = !DILocation(line: 7, scope: !14)!17 = !DILocation(line: 9, scope: !14)!18 = !DILocation(line: 11, scope: !14)!19 = !DILocation(line: 14, scope: !20)!20 = distinct !DILexicalBlock(scope: !21, file: !3)!21 = distinct !DISubprogram(name: "bar", linkageName: "bar", scope: !2, file: !3, line: 13, type: !22, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, unit: !2)!22 = !DISubroutineType(types: !23)!23 = !{!5}!24 = !DILocation(line: 15, scope: !20)!25 = !DILocation(line: 16, scope: !20)
|