83 lines
3.4 KiB
LLVM
83 lines
3.4 KiB
LLVM
; Test to ensure that a module containing both a NoDebug CU and one with
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; debug is handled correctly.
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; LLVM IR was generated the following way:
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; $ cat a.cpp
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; void f1();
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; __attribute__((always_inline)) void f2() {
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; f1();
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; }
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; void f3();
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; void f4() {
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; f3();
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; }
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; $ cat b.cpp
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; void f2();
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; __attribute__((always_inline)) void f3() {
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; f2();
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; }
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; $ clang++ -flto a.cpp -g -c
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; $ clang++ -flto b.cpp -Rpass=inline -c
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; $ llvm-link {a,b}.o -o - | opt -O2 - -o ab.bc
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; $ llvm-dis ab.bc
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; Ensure we can successfully generate assembly, and check that neither
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; "b.cpp" nor "f3" strings show up (which would be in the .debug_str
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; section if we had generated any lexical scopes and debug for them).
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; RUN: llc -mtriple=x86_64-unknown-linux-gnu %s -o - | FileCheck %s
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; CHECK-NOT: .asciz "b.cpp"
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; CHECK-NOT: .asciz "f3"
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; ModuleID = 'debug_and_nodebug_CUs.bc'
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source_filename = "debug_and_nodebug_CUs.ll"
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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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define void @_Z2f2v() local_unnamed_addr !dbg !8 {
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entry:
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tail call void @_Z2f1v(), !dbg !11
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ret void, !dbg !12
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}
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declare void @_Z2f1v() local_unnamed_addr
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define void @_Z2f4v() local_unnamed_addr !dbg !13 {
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entry:
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tail call void @_Z2f1v(), !dbg !14
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ret void, !dbg !19
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}
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define void @_Z2f3v() local_unnamed_addr !dbg !16 {
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entry:
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tail call void @_Z2f1v(), !dbg !20
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ret void, !dbg !22
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}
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!llvm.dbg.cu = !{!0, !3}
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!llvm.ident = !{!5, !5}
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!llvm.module.flags = !{!6, !7}
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!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "clang version 5.0.0 (trunk 294362) (llvm/trunk 294367)", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2)
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!1 = !DIFile(filename: "a.cpp", directory: ".")
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!2 = !{}
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!3 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !4, producer: "clang version 5.0.0 (trunk 294362) (llvm/trunk 294367)", isOptimized: false, runtimeVersion: 0, emissionKind: NoDebug, enums: !2)
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!4 = !DIFile(filename: "b.cpp", directory: ".")
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!5 = !{!"clang version 5.0.0 (trunk 294362) (llvm/trunk 294367)"}
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!6 = !{i32 2, !"Dwarf Version", i32 4}
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!7 = !{i32 2, !"Debug Info Version", i32 3}
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!8 = distinct !DISubprogram(name: "f2", linkageName: "_Z2f2v", scope: !1, file: !1, line: 2, type: !9, isLocal: false, isDefinition: true, scopeLine: 2, flags: DIFlagPrototyped, isOptimized: false, unit: !0, variables: !2)
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!9 = !DISubroutineType(types: !10)
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!10 = !{null}
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!11 = !DILocation(line: 3, column: 3, scope: !8)
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!12 = !DILocation(line: 4, column: 1, scope: !8)
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!13 = distinct !DISubprogram(name: "f4", linkageName: "_Z2f4v", scope: !1, file: !1, line: 6, type: !9, isLocal: false, isDefinition: true, scopeLine: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !0, variables: !2)
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!14 = !DILocation(line: 3, column: 3, scope: !8, inlinedAt: !15)
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!15 = distinct !DILocation(line: 3, column: 3, scope: !16, inlinedAt: !18)
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!16 = distinct !DISubprogram(name: "f3", scope: !4, file: !4, line: 2, type: !17, isLocal: false, isDefinition: true, scopeLine: 2, flags: DIFlagPrototyped, isOptimized: false, unit: !3, variables: !2)
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!17 = !DISubroutineType(types: !2)
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!18 = distinct !DILocation(line: 7, column: 3, scope: !13)
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!19 = !DILocation(line: 8, column: 1, scope: !13)
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!20 = !DILocation(line: 3, column: 3, scope: !8, inlinedAt: !21)
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!21 = distinct !DILocation(line: 3, column: 3, scope: !16)
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!22 = !DILocation(line: 4, column: 1, scope: !16)
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