05782218ab
This change simplifies code that has to deal with DIGlobalVariableExpression and mirrors how we treat DIExpressions in debug info intrinsics. Before this change there were two ways of representing empty expressions on globals, a nullptr and an empty !DIExpression(). If someone needs to upgrade out-of-tree testcases: perl -pi -e 's/(!DIGlobalVariableExpression\(var: ![0-9]*)\)/\1, expr: !DIExpression())/g' <MYTEST.ll> will catch 95%. llvm-svn: 312144
69 lines
3.5 KiB
LLVM
69 lines
3.5 KiB
LLVM
; RUN: opt -strip-dead-debug-info -verify %s -S | FileCheck %s
|
|
|
|
; CHECK: ModuleID = '{{.*}}'
|
|
; CHECK-NOT: "bar"
|
|
; CHECK-NOT: "abcd"
|
|
; CHECK-NOT: "GCC"
|
|
; CHECK: "Globals"
|
|
; CHECK: "abcd2"
|
|
|
|
source_filename = "test/Transforms/StripSymbols/strip-dead-debug-info.ll"
|
|
|
|
@xyz = global i32 2, !dbg !0
|
|
|
|
; Function Attrs: nounwind readnone
|
|
declare void @llvm.dbg.value(metadata, metadata, metadata) #0
|
|
|
|
; Function Attrs: nounwind readnone ssp
|
|
define i32 @fn() #1 !dbg !10 {
|
|
entry:
|
|
ret i32 0, !dbg !13
|
|
}
|
|
|
|
; Function Attrs: nounwind readonly ssp
|
|
define i32 @foo(i32 %i) #2 !dbg !15 {
|
|
entry:
|
|
tail call void @llvm.dbg.value(metadata i32 %i, metadata !18, metadata !19), !dbg !20
|
|
%.0 = load i32, i32* @xyz, align 4, !dbg !30
|
|
ret i32 %.0, !dbg !21
|
|
}
|
|
|
|
attributes #0 = { nounwind readnone }
|
|
attributes #1 = { nounwind readnone ssp }
|
|
attributes #2 = { nounwind readonly ssp }
|
|
|
|
!llvm.dbg.cu = !{!4, !23, !24, !28}
|
|
!llvm.module.flags = !{!9}
|
|
|
|
!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression())
|
|
!1 = !DIGlobalVariable(name: "xyz", scope: !2, file: !2, line: 3, type: !3, isLocal: false, isDefinition: true)
|
|
!2 = !DIFile(filename: "g.c", directory: "/tmp/")
|
|
!3 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
|
|
!4 = distinct !DICompileUnit(language: DW_LANG_C89, file: !2, producer: "4.2.1 (Based on Apple Inc. build 5658) (LLVM build)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !5, retainedTypes: !5, globals: !6)
|
|
!5 = !{}
|
|
!6 = !{!7, !0}
|
|
!7 = !DIGlobalVariableExpression(var: !8, expr: !DIExpression())
|
|
!8 = !DIGlobalVariable(name: "abcd", scope: !2, file: !2, line: 2, type: !3, isLocal: true, isDefinition: true)
|
|
!9 = !{i32 1, !"Debug Info Version", i32 3}
|
|
!10 = distinct !DISubprogram(name: "fn", linkageName: "fn", scope: null, file: !2, line: 6, type: !11, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: true, unit: !4)
|
|
!11 = !DISubroutineType(types: !12)
|
|
!12 = !{!3}
|
|
!13 = !DILocation(line: 6, scope: !14)
|
|
!14 = distinct !DILexicalBlock(scope: !10, file: !2, line: 6)
|
|
!15 = distinct !DISubprogram(name: "foo", linkageName: "foo", scope: null, file: !2, line: 7, type: !16, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: true, unit: !4)
|
|
!16 = !DISubroutineType(types: !17)
|
|
!17 = !{!3, !3}
|
|
!18 = !DILocalVariable(name: "i", arg: 1, scope: !15, file: !2, line: 7, type: !3)
|
|
!19 = !DIExpression()
|
|
!20 = !DILocation(line: 7, scope: !15)
|
|
!21 = !DILocation(line: 10, scope: !22)
|
|
!22 = distinct !DILexicalBlock(scope: !15, file: !2, line: 7)
|
|
!23 = distinct !DICompileUnit(language: DW_LANG_C89, file: !2, producer: "GCC", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !5, retainedTypes: !5, globals: !5)
|
|
!24 = distinct !DICompileUnit(language: DW_LANG_C89, file: !2, producer: "Globals", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !5, retainedTypes: !5, globals: !25)
|
|
!25 = !{!26}
|
|
!26 = !DIGlobalVariableExpression(var: !27, expr: !DIExpression(DW_OP_constu, 0, DW_OP_stack_value))
|
|
!27 = !DIGlobalVariable(name: "abcd2", scope: !2, file: !2, line: 2, type: !3, isLocal: true, isDefinition: true)
|
|
!28 = distinct !DICompileUnit(language: DW_LANG_C89, file: !2, producer: "InlineTest", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !5, retainedTypes: !5, globals: !5)
|
|
!29 = distinct !DISubprogram(name: "inlinefunc", linkageName: "inlinefunc", scope: null, file: !2, line: 7, type: !16, isLocal: false, isDefinition: true, isOptimized: true, unit: !28)
|
|
!30 = !DILocation(line: 100, scope: !29, inlinedAt: !21)
|