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b9cf843c09
Summary: Companion to https://reviews.llvm.org/D59347 Reviewers: rnk, zturner, probinson, dblaikie, deadalnix Subscribers: aprantl, jdoerfert, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D59348 llvm-svn: 358220
93 lines
4.2 KiB
LLVM
93 lines
4.2 KiB
LLVM
; Checks that DW_AT_decl_file attribute is correctly set for
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; template function declaration. When using full LTO we likely
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; end up having multiple CUs in a single DWARF file, and it is
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; possible that we add template function declaration DIE from
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; CU#1 to structure type DIE from CU#2. In such case we should
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; add source line attributes on behalf of CU#2, not CU#1
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; Example source code used to generate this sample (C++)
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; // File inc1.h
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; struct S {
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; template <typename T> static void tmpfn() {}
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; };
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;
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; // File: inc2.h
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; extern int x;
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; int x;
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;
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; // File: foo.cpp
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; #include "inc1.h"
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; S s;
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;
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; // File: bar.cpp
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; #include "inc1.h"
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; #include "inc2.h"
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; void f3() { S::tmpfn<int>(); }
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; RUN: llc -filetype=obj %s -o %t
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; RUN: llvm-dwarfdump %t -o - | FileCheck %s
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; CHECK: DW_AT_linkage_name ("_ZN1S5tmpfnIiEEvv")
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; CHECK-NEXT: DW_AT_name ("tmpfn<int>")
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; CHECK-NEXT: DW_AT_decl_file ("{{.*}}inc1.h")
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; CHECK-NEXT: DW_AT_decl_line (2)
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source_filename = "ld-temp.o"
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target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-unknown-linux-gnu"
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%struct.S = type { i8 }
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$_ZN1S5tmpfnIiEEvv = comdat any
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@s = dso_local global %struct.S zeroinitializer, align 1, !dbg !0
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@x = dso_local global i32 0, align 4, !dbg !8
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; Function Attrs: noinline optnone uwtable
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define dso_local void @_Z2f3v() !dbg !21 {
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call void @_ZN1S5tmpfnIiEEvv(), !dbg !24
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ret void, !dbg !25
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}
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; Function Attrs: noinline nounwind optnone uwtable
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define weak_odr dso_local void @_ZN1S5tmpfnIiEEvv() comdat align 2 !dbg !26 {
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ret void, !dbg !30
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}
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!llvm.dbg.cu = !{!2, !10}
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!llvm.ident = !{!15, !15}
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!llvm.module.flags = !{!16, !17, !18, !19, !20}
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!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression())
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!1 = distinct !DIGlobalVariable(name: "s", scope: !2, file: !3, line: 2, type: !6, isLocal: false, isDefinition: true)
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!2 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !3, producer: "clang version 9.0.0 (trunk 354767)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, globals: !5, nameTableKind: None)
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!3 = !DIFile(filename: "foo.cpp", directory: "/home/evgeny/work/cpp_lexer/sample2")
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!4 = !{}
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!5 = !{!0}
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!6 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "S", file: !7, line: 1, size: 8, flags: DIFlagTypePassByValue, elements: !4, identifier: "_ZTS1S")
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!7 = !DIFile(filename: "./inc1.h", directory: "/home/evgeny/work/cpp_lexer/sample2")
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!8 = !DIGlobalVariableExpression(var: !9, expr: !DIExpression())
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!9 = distinct !DIGlobalVariable(name: "x", scope: !10, file: !13, line: 2, type: !14, isLocal: false, isDefinition: true)
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!10 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !11, producer: "clang version 9.0.0 (trunk 354767)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, globals: !12, nameTableKind: None)
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!11 = !DIFile(filename: "bar.cpp", directory: "/home/evgeny/work/cpp_lexer/sample2")
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!12 = !{!8}
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!13 = !DIFile(filename: "./inc2.h", directory: "/home/evgeny/work/cpp_lexer/sample2")
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!14 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
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!15 = !{!"clang version 9.0.0 (trunk 354767)"}
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!16 = !{i32 2, !"Dwarf Version", i32 4}
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!17 = !{i32 2, !"Debug Info Version", i32 3}
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!18 = !{i32 1, !"wchar_size", i32 4}
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!19 = !{i32 1, !"ThinLTO", i32 0}
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!20 = !{i32 1, !"EnableSplitLTOUnit", i32 0}
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!21 = distinct !DISubprogram(name: "f3", linkageName: "_Z2f3v", scope: !11, file: !11, line: 3, type: !22, scopeLine: 3, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !10, retainedNodes: !4)
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!22 = !DISubroutineType(types: !23)
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!23 = !{null}
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!24 = !DILocation(line: 3, column: 13, scope: !21)
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!25 = !DILocation(line: 3, column: 30, scope: !21)
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!26 = distinct !DISubprogram(name: "tmpfn<int>", linkageName: "_ZN1S5tmpfnIiEEvv", scope: !6, file: !7, line: 2, type: !22, scopeLine: 2, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !10, templateParams: !28, declaration: !27, retainedNodes: !4)
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!27 = !DISubprogram(name: "tmpfn<int>", linkageName: "_ZN1S5tmpfnIiEEvv", scope: !6, file: !7, line: 2, type: !22, scopeLine: 2, flags: DIFlagPrototyped | DIFlagStaticMember, spFlags: 0, templateParams: !28)
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!28 = !{!29}
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!29 = !DITemplateTypeParameter(name: "T", type: !14)
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!30 = !DILocation(line: 2, column: 46, scope: !26)
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