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bbf32bd275
Mangled "linkage" names can be huge, and if the debugger (or other tools) have no use for them, the size savings can be very impressive (on the order of 40%). Add one test for controlling behavior, and modify a number of tests to either stop using linkage names, or make llc emit them (so these tests will still run when the default triple is for PS4). Differential Revision: http://reviews.llvm.org/D11374 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@244678 91177308-0d34-0410-b5e6-96231b3b80d8
128 lines
6.4 KiB
LLVM
128 lines
6.4 KiB
LLVM
; REQUIRES: object-emission, native
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;
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; RUN: llvm-link %s %p/type-unique-simple2-b.ll -S -o - | %llc_dwarf -filetype=obj -O0 | llvm-dwarfdump -debug-dump=info - | FileCheck %s
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;
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; Tests for a merge error where attributes are inserted twice into the same DIE.
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;
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; $ cat ab.h
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; typedef int foo_t;
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; class A {
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; public:
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; virtual void setFoo();
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; virtual const foo_t getFoo();
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; };
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;
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; $ cat a.cpp
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; #include "ab.h"
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; foo_t bar() {
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; return A().getFoo();
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; }
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;
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; CHECK: DW_AT_name {{.*}} "setFoo"
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; CHECK-NOT: DW_TAG
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; CHECK: DW_AT_accessibility [DW_FORM_data1] (DW_ACCESS_public)
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; CHECK-NOT: DW_AT_accessibility
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; CHECK: DW_TAG
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; ModuleID = 'a.cpp'
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%class.A = type { i32 (...)** }
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@_ZTV1A = external unnamed_addr constant [4 x i8*]
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; Function Attrs: nounwind
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define i32 @_Z3barv() #0 {
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entry:
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%tmp = alloca %class.A, align 8
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%0 = bitcast %class.A* %tmp to i8*, !dbg !38
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call void @llvm.memset.p0i8.i64(i8* %0, i8 0, i64 8, i32 8, i1 false), !dbg !38
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call void @_ZN1AC1Ev(%class.A* %tmp) #1, !dbg !38
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%call = call i32 @_ZN1A6getFooEv(%class.A* %tmp), !dbg !38
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ret i32 %call, !dbg !38
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}
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; Function Attrs: nounwind
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declare void @llvm.memset.p0i8.i64(i8* nocapture, i8, i64, i32, i1) #1
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; Function Attrs: inlinehint nounwind
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define linkonce_odr void @_ZN1AC1Ev(%class.A* %this) unnamed_addr #2 align 2 {
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entry:
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%this.addr = alloca %class.A*, align 8
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store %class.A* %this, %class.A** %this.addr, align 8
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call void @llvm.dbg.declare(metadata %class.A** %this.addr, metadata !39, metadata !DIExpression()), !dbg !41
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%this1 = load %class.A*, %class.A** %this.addr
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call void @_ZN1AC2Ev(%class.A* %this1) #1, !dbg !42
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ret void, !dbg !42
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}
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declare i32 @_ZN1A6getFooEv(%class.A*)
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; Function Attrs: nounwind readnone
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declare void @llvm.dbg.declare(metadata, metadata, metadata) #4
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; Function Attrs: inlinehint nounwind
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define linkonce_odr void @_ZN1AC2Ev(%class.A* %this) unnamed_addr #2 align 2 {
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entry:
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%this.addr = alloca %class.A*, align 8
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store %class.A* %this, %class.A** %this.addr, align 8
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call void @llvm.dbg.declare(metadata %class.A** %this.addr, metadata !44, metadata !DIExpression()), !dbg !45
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%this1 = load %class.A*, %class.A** %this.addr
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%0 = bitcast %class.A* %this1 to i8***, !dbg !46
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store i8** getelementptr inbounds ([4 x i8*], [4 x i8*]* @_ZTV1A, i64 0, i64 2), i8*** %0, !dbg !46
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ret void, !dbg !46
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}
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attributes #0 = { nounwind }
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attributes #1 = { nounwind }
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attributes #2 = { inlinehint nounwind }
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attributes #4 = { nounwind readnone }
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!35, !36}
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!llvm.ident = !{!37}
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!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.5 ", isOptimized: false, emissionKind: 0, file: !1, enums: !2, retainedTypes: !3, subprograms: !26, globals: !2, imports: !2)
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!1 = !DIFile(filename: "<unknown>", directory: "")
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!2 = !{}
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!3 = !{!4}
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!4 = !DICompositeType(tag: DW_TAG_class_type, name: "A", line: 2, size: 64, align: 64, file: !5, elements: !6, vtableHolder: !"_ZTS1A", identifier: "_ZTS1A")
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!5 = !DIFile(filename: "./ab.h", directory: "")
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!6 = !{!7, !14, !19}
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!7 = !DIDerivedType(tag: DW_TAG_member, name: "_vptr$A", size: 64, flags: DIFlagArtificial, file: !5, scope: !8, baseType: !9)
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!8 = !DIFile(filename: "./ab.h", directory: "")
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!9 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, baseType: !10)
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!10 = !DIDerivedType(tag: DW_TAG_pointer_type, name: "__vtbl_ptr_type", size: 64, baseType: !11)
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!11 = !DISubroutineType(types: !12)
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!12 = !{!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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!14 = !DISubprogram(name: "setFoo", linkageName: "_ZN1A6setFooEv", line: 4, isLocal: false, isDefinition: false, virtuality: DW_VIRTUALITY_virtual, virtualIndex: 6, flags: DIFlagPublic | DIFlagPrototyped, isOptimized: false, scopeLine: 4, file: !5, scope: !"_ZTS1A", type: !15, containingType: !"_ZTS1A")
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!15 = !DISubroutineType(types: !16)
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!16 = !{null, !17}
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!17 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, flags: DIFlagArtificial | DIFlagObjectPointer, baseType: !"_ZTS1A")
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!19 = !DISubprogram(name: "getFoo", linkageName: "_ZN1A6getFooEv", line: 5, isLocal: false, isDefinition: false, virtuality: DW_VIRTUALITY_virtual, virtualIndex: 6, flags: DIFlagPublic | DIFlagPrototyped, isOptimized: false, scopeLine: 5, file: !5, scope: !"_ZTS1A", type: !20, containingType: !"_ZTS1A")
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!20 = !DISubroutineType(types: !21)
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!21 = !{!22, !17}
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!22 = !DIDerivedType(tag: DW_TAG_const_type, baseType: !23)
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!23 = !DIDerivedType(tag: DW_TAG_typedef, name: "foo_t", line: 1, file: !24, baseType: !13)
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!24 = !DIFile(filename: "a.cpp", directory: "")
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!26 = !{!27, !31, !34}
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!27 = !DISubprogram(name: "bar", linkageName: "_Z3barv", line: 2, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 2, file: !24, scope: !28, type: !29, function: i32 ()* @_Z3barv, variables: !2)
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!28 = !DIFile(filename: "a.cpp", directory: "")
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!29 = !DISubroutineType(types: !30)
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!30 = !{!23}
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!31 = !DISubprogram(name: "A", linkageName: "_ZN1AC1Ev", line: 2, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagArtificial | DIFlagPrototyped, isOptimized: false, scopeLine: 2, file: !5, scope: !"_ZTS1A", type: !15, function: void (%class.A*)* @_ZN1AC1Ev, declaration: !32, variables: !2)
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!32 = !DISubprogram(name: "A", isLocal: false, isDefinition: false, virtualIndex: 6, flags: DIFlagArtificial | DIFlagPrototyped, isOptimized: false, scope: !"_ZTS1A", type: !15)
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!34 = !DISubprogram(name: "A", linkageName: "_ZN1AC2Ev", line: 2, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagArtificial | DIFlagPrototyped, isOptimized: false, scopeLine: 2, file: !5, scope: !"_ZTS1A", type: !15, function: void (%class.A*)* @_ZN1AC2Ev, declaration: !32, variables: !2)
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!35 = !{i32 2, !"Dwarf Version", i32 2}
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!36 = !{i32 1, !"Debug Info Version", i32 3}
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!37 = !{!"clang version 3.5 "}
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!38 = !DILocation(line: 3, scope: !27)
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!39 = !DILocalVariable(name: "this", arg: 1, flags: DIFlagArtificial | DIFlagObjectPointer, scope: !31, type: !40)
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!40 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, baseType: !"_ZTS1A")
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!41 = !DILocation(line: 0, scope: !31)
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!42 = !DILocation(line: 2, scope: !43)
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!43 = !DILexicalBlockFile(discriminator: 0, file: !5, scope: !31)
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!44 = !DILocalVariable(name: "this", arg: 1, flags: DIFlagArtificial | DIFlagObjectPointer, scope: !34, type: !40)
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!45 = !DILocation(line: 0, scope: !34)
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!46 = !DILocation(line: 2, scope: !34)
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