mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-10-19 19:12:56 +02:00
7d6813a6c8
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
65 lines
3.0 KiB
LLVM
65 lines
3.0 KiB
LLVM
; RUN: llc -mtriple i686-pc-cygwin -O2 %s -o - | FileCheck %s
|
|
; Check struct X for dead variable xyz from inlined function foo.
|
|
|
|
; CHECK: Lsection_info
|
|
; CHECK: DW_TAG_structure_type
|
|
; CHECK-NEXT: info_string
|
|
|
|
source_filename = "test/DebugInfo/X86/InlinedFnLocalVar.ll"
|
|
|
|
@i = common global i32 0, !dbg !0
|
|
|
|
; Function Attrs: nounwind readnone
|
|
declare void @llvm.dbg.declare(metadata, metadata, metadata) #0
|
|
|
|
; Function Attrs: nounwind readnone
|
|
declare void @llvm.dbg.value(metadata, metadata, metadata) #0
|
|
|
|
; Function Attrs: nounwind ssp
|
|
define i32 @bar() #1 !dbg !8 {
|
|
entry:
|
|
%0 = load i32, i32* @i, align 4, !dbg !11
|
|
tail call void @llvm.dbg.value(metadata i32 %0, metadata !13, metadata !24), !dbg !25
|
|
tail call void @llvm.dbg.declare(metadata !5, metadata !18, metadata !24), !dbg !26
|
|
%1 = mul nsw i32 %0, %0, !dbg !27
|
|
store i32 %1, i32* @i, align 4, !dbg !11
|
|
ret i32 %1, !dbg !28
|
|
}
|
|
|
|
attributes #0 = { nounwind readnone }
|
|
attributes #1 = { nounwind ssp }
|
|
|
|
!llvm.dbg.cu = !{!4}
|
|
!llvm.module.flags = !{!7}
|
|
|
|
!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression())
|
|
!1 = !DIGlobalVariable(name: "i", scope: !2, file: !2, line: 5, type: !3, isLocal: false, isDefinition: true)
|
|
!2 = !DIFile(filename: "bar.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, imports: !5)
|
|
!5 = !{}
|
|
!6 = !{!0}
|
|
!7 = !{i32 1, !"Debug Info Version", i32 3}
|
|
!8 = distinct !DISubprogram(name: "bar", linkageName: "bar", scope: !2, file: !2, line: 14, type: !9, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: true, unit: !4)
|
|
!9 = !DISubroutineType(types: !10)
|
|
!10 = !{!3}
|
|
!11 = !DILocation(line: 15, scope: !12)
|
|
!12 = distinct !DILexicalBlock(scope: !8, file: !2, line: 14)
|
|
!13 = !DILocalVariable(name: "j", arg: 1, scope: !14, file: !2, line: 9, type: !3)
|
|
!14 = distinct !DISubprogram(name: "foo", scope: !2, file: !2, line: 9, type: !15, isLocal: true, isDefinition: true, scopeLine: 9, virtualIndex: 6, isOptimized: true, unit: !4, variables: !17)
|
|
!15 = !DISubroutineType(types: !16)
|
|
!16 = !{!3, !3}
|
|
!17 = !{!13, !18}
|
|
!18 = !DILocalVariable(name: "xyz", scope: !19, file: !2, line: 10, type: !20)
|
|
!19 = distinct !DILexicalBlock(scope: !14, file: !2, line: 9)
|
|
!20 = !DICompositeType(tag: DW_TAG_structure_type, name: "X", scope: !14, file: !2, line: 10, size: 64, align: 32, elements: !21)
|
|
!21 = !{!22, !23}
|
|
!22 = !DIDerivedType(tag: DW_TAG_member, name: "a", scope: !20, file: !2, line: 10, baseType: !3, size: 32, align: 32)
|
|
!23 = !DIDerivedType(tag: DW_TAG_member, name: "b", scope: !20, file: !2, line: 10, baseType: !3, size: 32, align: 32, offset: 32)
|
|
!24 = !DIExpression()
|
|
!25 = !DILocation(line: 9, scope: !14, inlinedAt: !11)
|
|
!26 = !DILocation(line: 9, scope: !19, inlinedAt: !11)
|
|
!27 = !DILocation(line: 11, scope: !19, inlinedAt: !11)
|
|
!28 = !DILocation(line: 16, scope: !12)
|
|
|