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      1 ; RUN: %llc_dwarf -O0 -filetype=obj -dwarf-linkage-names=Abstract < %s | llvm-dwarfdump -debug-dump=info - > %t
      2 ; RUN: FileCheck %s -check-prefix=ONENAME < %t
      3 ; RUN: FileCheck %s -check-prefix=REF < %t 
      4 ; Verify tuning for SCE gets us Abstract only.
      5 ; RUN: %llc_dwarf -O0 -filetype=obj -debugger-tune=sce < %s | llvm-dwarfdump -debug-dump=info - > %t
      6 ; RUN: FileCheck %s -check-prefix=ONENAME < %t
      7 ; RUN: FileCheck %s -check-prefix=REF < %t 
      8 ; REQUIRES: object-emission
      9 
     10 ; Verify that the only linkage-name present is the abstract origin of the
     11 ; inlined subprogram.
     12 
     13 ; IR generated from clang -O0 with:
     14 ; void f1();
     15 ; __attribute__((always_inline)) void f2() { 
     16 ;   f1();
     17 ; }
     18 ; void f3() {
     19 ;   f2();
     20 ; }
     21 
     22 ; Show that there's only one linkage_name.
     23 ; ONENAME:     {{DW_AT(_MIPS)?_linkage_name}}
     24 ; ONENAME-NOT: {{DW_AT(_MIPS)?_linkage_name}}
     25 
     26 ; Locate the subprogram DIE with the linkage name.
     27 ; Show that the inlined_subroutine refers to it.
     28 ; REF:     DW_TAG_subprogram
     29 ; REF:     [[FOO:0x.*]]: DW_TAG_subprogram
     30 ; REF-NOT: {{DW_TAG|NULL}}
     31 ; REF:     {{DW_AT(_MIPS)?_linkage_name}}
     32 ; REF:     DW_TAG_inlined_subroutine
     33 ; REF-NOT: {{DW_TAG|NULL}}
     34 ; REF:     DW_AT_abstract_origin {{.*}} {[[FOO]]}
     35 
     36 ; Function Attrs: alwaysinline uwtable
     37 define void @_Z2f2v() #0 !dbg !4 {
     38 entry:
     39   call void @_Z2f1v(), !dbg !11
     40   ret void, !dbg !12
     41 }
     42 
     43 declare void @_Z2f1v()
     44 
     45 ; Function Attrs: uwtable
     46 define void @_Z2f3v() #2 !dbg !7 {
     47 entry:
     48   call void @_Z2f1v(), !dbg !13
     49   ret void, !dbg !15
     50 }
     51 
     52 attributes #0 = { alwaysinline uwtable }
     53 attributes #2 = { uwtable }
     54 
     55 !llvm.dbg.cu = !{!0}
     56 !llvm.module.flags = !{!8, !9}
     57 !llvm.ident = !{!10}
     58 
     59 !0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "clang version 3.9.0 (trunk 265282)", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2)
     60 !1 = !DIFile(filename: "linkage-name-abstract.cpp", directory: "/home/probinson/projects/scratch")
     61 !2 = !{}
     62 !4 = distinct !DISubprogram(name: "f2", linkageName: "_Z2f2v", scope: !1, file: !1, line: 2, type: !5, isLocal: false, isDefinition: true, scopeLine: 2, flags: DIFlagPrototyped, isOptimized: false, unit: !0, variables: !2)
     63 !5 = !DISubroutineType(types: !6)
     64 !6 = !{null}
     65 !7 = distinct !DISubprogram(name: "f3", linkageName: "_Z2f3v", scope: !1, file: !1, line: 5, type: !5, isLocal: false, isDefinition: true, scopeLine: 5, flags: DIFlagPrototyped, isOptimized: false, unit: !0, variables: !2)
     66 !8 = !{i32 2, !"Dwarf Version", i32 4}
     67 !9 = !{i32 2, !"Debug Info Version", i32 3}
     68 !10 = !{!"clang version 3.9.0 (trunk 265282)"}
     69 !11 = !DILocation(line: 3, column: 3, scope: !4)
     70 !12 = !DILocation(line: 4, column: 1, scope: !4)
     71 !13 = !DILocation(line: 3, column: 3, scope: !4, inlinedAt: !14)
     72 !14 = distinct !DILocation(line: 6, column: 3, scope: !7)
     73 !15 = !DILocation(line: 7, column: 1, scope: !7)
     74