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1; Test to ensure that a module containing both a NoDebug CU and one with2; debug is handled correctly.3 4; LLVM IR was generated the following way:5; $ cat a.cpp6; void f1();7; __attribute__((always_inline)) void f2() {8; f1();9; }10; void f3();11; void f4() {12; f3();13; }14; $ cat b.cpp15; void f2();16; __attribute__((always_inline)) void f3() {17; f2();18; }19; $ clang++ -flto a.cpp -g -c20; $ clang++ -flto b.cpp -Rpass=inline -c21; $ llvm-link {a,b}.o -o - | opt -O2 - -o ab.bc22; $ llvm-dis ab.bc23 24; Ensure we can successfully generate assembly, and check that neither25; "b.cpp" nor "f3" strings show up (which would be in the .debug_str26; section if we had generated any lexical scopes and debug for them).27; RUN: llc -mtriple=x86_64-unknown-linux-gnu %s -o - | FileCheck %s28; CHECK-NOT: .asciz "b.cpp"29; CHECK-NOT: .asciz "f3"30 31; ModuleID = 'debug_and_nodebug_CUs.bc'32source_filename = "debug_and_nodebug_CUs.ll"33target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"34target triple = "x86_64-unknown-linux-gnu"35 36define void @_Z2f2v() local_unnamed_addr !dbg !8 {37entry:38 tail call void @_Z2f1v(), !dbg !1139 ret void, !dbg !1240}41 42declare void @_Z2f1v() local_unnamed_addr43 44define void @_Z2f4v() local_unnamed_addr !dbg !13 {45entry:46 tail call void @_Z2f1v(), !dbg !1447 ret void, !dbg !1948}49 50define void @_Z2f3v() local_unnamed_addr !dbg !16 {51entry:52 tail call void @_Z2f1v(), !dbg !2053 ret void, !dbg !2254}55 56!llvm.dbg.cu = !{!0, !3}57!llvm.ident = !{!5, !5}58!llvm.module.flags = !{!6, !7}59 60!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)61!1 = !DIFile(filename: "a.cpp", directory: ".")62!2 = !{}63!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)64!4 = !DIFile(filename: "b.cpp", directory: ".")65!5 = !{!"clang version 5.0.0 (trunk 294362) (llvm/trunk 294367)"}66!6 = !{i32 2, !"Dwarf Version", i32 4}67!7 = !{i32 2, !"Debug Info Version", i32 3}68!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, retainedNodes: !2)69!9 = !DISubroutineType(types: !10)70!10 = !{null}71!11 = !DILocation(line: 3, column: 3, scope: !8)72!12 = !DILocation(line: 4, column: 1, scope: !8)73!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, retainedNodes: !2)74!14 = !DILocation(line: 3, column: 3, scope: !8, inlinedAt: !15)75!15 = distinct !DILocation(line: 3, column: 3, scope: !16, inlinedAt: !18)76!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, retainedNodes: !2)77!17 = !DISubroutineType(types: !2)78!18 = distinct !DILocation(line: 7, column: 3, scope: !13)79!19 = !DILocation(line: 8, column: 1, scope: !13)80!20 = !DILocation(line: 3, column: 3, scope: !8, inlinedAt: !21)81!21 = distinct !DILocation(line: 3, column: 3, scope: !16)82!22 = !DILocation(line: 4, column: 1, scope: !16)83