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de7484036b
Eliminate DITypeIdentifierMap and make DITypeRef a thin wrapper around DIType*. It is no longer legal to refer to a DICompositeType by its 'identifier:', and DIBuilder no longer retains all types with an 'identifier:' automatically. Aside from the bitcode upgrade, this is mainly removing logic to resolve an MDString-based reference to an actualy DIType. The commits leading up to this have made the implicit type map in DICompileUnit's 'retainedTypes:' field superfluous. This does not remove DITypeRef, DIScopeRef, DINodeRef, and DITypeRefArray, or stop using them in DI-related metadata. Although as of this commit they aren't serving a useful purpose, there are patchces under review to reuse them for CodeView support. The tests in LLVM were updated with deref-typerefs.sh, which is attached to the thread "[RFC] Lazy-loading of debug info metadata": http://lists.llvm.org/pipermail/llvm-dev/2016-April/098318.html git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@267296 91177308-0d34-0410-b5e6-96231b3b80d8
108 lines
5.8 KiB
LLVM
108 lines
5.8 KiB
LLVM
; RUN: true
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; This file belongs to type-unique-type-array-a.ll.
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;
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; rdar://problem/17628609
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;
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; cat -n b.cpp
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; 1 struct SA {
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; 2 int a;
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; 3 };
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; 4
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; 5 class B {
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; 6 public:
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; 7 void testB(SA sa) {
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; 8 }
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; 9 };
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; 10
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; 11 void topB(B* b, SA sa) {
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; 12 b->testB(sa);
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; 13 }
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%class.B = type { i8 }
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%struct.SA = type { i32 }
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; Function Attrs: ssp uwtable
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define void @_Z4topBP1B2SA(%class.B* %b, i32 %sa.coerce) #0 !dbg !15 {
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entry:
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%sa = alloca %struct.SA, align 4
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%b.addr = alloca %class.B*, align 8
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%agg.tmp = alloca %struct.SA, align 4
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%coerce.dive = getelementptr %struct.SA, %struct.SA* %sa, i32 0, i32 0
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store i32 %sa.coerce, i32* %coerce.dive
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store %class.B* %b, %class.B** %b.addr, align 8
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call void @llvm.dbg.declare(metadata %class.B** %b.addr, metadata !24, metadata !DIExpression()), !dbg !25
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call void @llvm.dbg.declare(metadata %struct.SA* %sa, metadata !26, metadata !DIExpression()), !dbg !27
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%0 = load %class.B*, %class.B** %b.addr, align 8, !dbg !28
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%1 = bitcast %struct.SA* %agg.tmp to i8*, !dbg !28
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%2 = bitcast %struct.SA* %sa to i8*, !dbg !28
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call void @llvm.memcpy.p0i8.p0i8.i64(i8* %1, i8* %2, i64 4, i32 4, i1 false), !dbg !28
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%coerce.dive1 = getelementptr %struct.SA, %struct.SA* %agg.tmp, i32 0, i32 0, !dbg !28
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%3 = load i32, i32* %coerce.dive1, !dbg !28
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call void @_ZN1B5testBE2SA(%class.B* %0, i32 %3), !dbg !28
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ret void, !dbg !29
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}
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; Function Attrs: nounwind readnone
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declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
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; Function Attrs: nounwind ssp uwtable
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define linkonce_odr void @_ZN1B5testBE2SA(%class.B* %this, i32 %sa.coerce) #2 align 2 !dbg !20 {
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entry:
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%sa = alloca %struct.SA, align 4
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%this.addr = alloca %class.B*, align 8
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%coerce.dive = getelementptr %struct.SA, %struct.SA* %sa, i32 0, i32 0
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store i32 %sa.coerce, i32* %coerce.dive
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store %class.B* %this, %class.B** %this.addr, align 8
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call void @llvm.dbg.declare(metadata %class.B** %this.addr, metadata !30, metadata !DIExpression()), !dbg !31
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call void @llvm.dbg.declare(metadata %struct.SA* %sa, metadata !32, metadata !DIExpression()), !dbg !33
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%this1 = load %class.B*, %class.B** %this.addr
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ret void, !dbg !34
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}
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; Function Attrs: nounwind
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declare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture, i8* nocapture readonly, i64, i32, i1) #3
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attributes #0 = { ssp uwtable "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" }
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attributes #1 = { nounwind readnone }
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attributes #2 = { nounwind ssp uwtable "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" }
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attributes #3 = { nounwind }
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!21, !22}
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!llvm.ident = !{!23}
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!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.5.0 (trunk 214102:214113M) (llvm/trunk 214102:214115M)", isOptimized: false, emissionKind: FullDebug, file: !1, enums: !2, retainedTypes: !3, globals: !2, imports: !2)
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!1 = !DIFile(filename: "b.cpp", directory: "/Users/manmanren/test-Nov/type_unique/rdar_di_array")
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!2 = !{}
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!3 = !{!4, !10}
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!4 = !DICompositeType(tag: DW_TAG_class_type, name: "B", line: 5, file: !1, elements: !5, identifier: "_ZTS1B")
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!5 = !{!6}
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!6 = !DISubprogram(name: "testB", linkageName: "_ZN1B5testBE2SA", line: 7, isLocal: false, isDefinition: false, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 7, file: !1, scope: !4, type: !7)
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!7 = !DISubroutineType(types: !8)
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!8 = !{null, !9, !10}
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!9 = !DIDerivedType(tag: DW_TAG_pointer_type, flags: DIFlagArtificial | DIFlagObjectPointer, baseType: !4)
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!10 = !DICompositeType(tag: DW_TAG_structure_type, name: "SA", line: 1, size: 32, align: 32, file: !1, elements: !11, identifier: "_ZTS2SA")
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!11 = !{!12}
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!12 = !DIDerivedType(tag: DW_TAG_member, name: "a", line: 2, size: 32, align: 32, file: !1, scope: !10, baseType: !13)
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!13 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
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!15 = distinct !DISubprogram(name: "topB", linkageName: "_Z4topBP1B2SA", line: 11, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 11, file: !1, scope: !16, type: !17, variables: !2)
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!16 = !DIFile(filename: "b.cpp", directory: "/Users/manmanren/test-Nov/type_unique/rdar_di_array")
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!17 = !DISubroutineType(types: !18)
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!18 = !{null, !19, !10}
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!19 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !4)
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!20 = distinct !DISubprogram(name: "testB", linkageName: "_ZN1B5testBE2SA", line: 7, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 7, file: !1, scope: !4, type: !7, declaration: !6, variables: !2)
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!21 = !{i32 2, !"Dwarf Version", i32 2}
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!22 = !{i32 2, !"Debug Info Version", i32 3}
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!23 = !{!"clang version 3.5.0 (trunk 214102:214113M) (llvm/trunk 214102:214115M)"}
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!24 = !DILocalVariable(name: "b", line: 11, arg: 1, scope: !15, file: !16, type: !19)
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!25 = !DILocation(line: 11, column: 14, scope: !15)
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!26 = !DILocalVariable(name: "sa", line: 11, arg: 2, scope: !15, file: !16, type: !10)
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!27 = !DILocation(line: 11, column: 20, scope: !15)
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!28 = !DILocation(line: 12, column: 3, scope: !15)
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!29 = !DILocation(line: 13, column: 1, scope: !15)
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!30 = !DILocalVariable(name: "this", arg: 1, flags: DIFlagArtificial | DIFlagObjectPointer, scope: !20, type: !19)
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!31 = !DILocation(line: 0, scope: !20)
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!32 = !DILocalVariable(name: "sa", line: 7, arg: 2, scope: !20, file: !16, type: !10)
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!33 = !DILocation(line: 7, column: 17, scope: !20)
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!34 = !DILocation(line: 8, column: 3, scope: !20)
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