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      1 ; Verify target-based defaults for "debugger tuning," and the ability to
      2 ; override defaults.
      3 ; We use the DW_AT_APPLE_optimized attribute and the DW_OP_form_tls_address
      4 ; vs. DW_OP_GNU_push_tls_address opcodes to distinguish the debuggers.
      5 
      6 ; Verify defaults for various targets.
      7 ; RUN: llc -mtriple=x86_64-scei-ps4 -filetype=obj < %s | llvm-dwarfdump -debug-info - | FileCheck --check-prefix=SCE %s
      8 ; RUN: llc -mtriple=x86_64-apple-darwin12 -filetype=obj < %s | llvm-dwarfdump -debug-info - | FileCheck --check-prefix=LLDB %s
      9 ; RUN: llc -mtriple=x86_64-pc-freebsd -filetype=obj < %s | llvm-dwarfdump -debug-info - | FileCheck --check-prefix=GDB %s
     10 ; RUN: llc -mtriple=x86_64-pc-linux -filetype=obj < %s | llvm-dwarfdump -debug-info - | FileCheck --check-prefix=GDB %s
     11 
     12 ; We can override defaults.
     13 ; RUN: llc -mtriple=x86_64-scei-ps4 -filetype=obj -debugger-tune=gdb < %s | llvm-dwarfdump -debug-info - | FileCheck --check-prefix=GDB %s
     14 ; RUN: llc -mtriple=x86_64-pc-linux -filetype=obj -debugger-tune=lldb < %s | llvm-dwarfdump -debug-info - | FileCheck --check-prefix=LLDB %s
     15 ; RUN: llc -mtriple=x86_64-apple-darwin12 -filetype=obj -debugger-tune=sce < %s | llvm-dwarfdump -debug-info - | FileCheck --check-prefix=SCE %s
     16 
     17 ; GDB-NOT: DW_AT_APPLE_optimized
     18 ; GDB-NOT: DW_OP_form_tls_address
     19 
     20 ; LLDB: DW_AT_APPLE_optimized
     21 ; LLDB: DW_OP_form_tls_address
     22 
     23 ; SCE-NOT: DW_AT_APPLE_optimized
     24 ; SCE-NOT: DW_OP_GNU_push_tls_address
     25 
     26 @var = thread_local global i32 0, align 4, !dbg !0
     27 
     28 ; Function Attrs: norecurse nounwind readnone uwtable
     29 define void @_Z3funv() local_unnamed_addr #0 !dbg !11 {
     30   ret void, !dbg !14
     31 }
     32 
     33 ; Function Attrs: norecurse uwtable
     34 define weak_odr hidden i32* @_ZTW3var() local_unnamed_addr #1 {
     35   ret i32* @var
     36 }
     37 
     38 attributes #0 = { norecurse nounwind readnone uwtable }
     39 attributes #1 = { norecurse uwtable }
     40 
     41 !llvm.dbg.cu = !{!2}
     42 !llvm.module.flags = !{!7, !8, !9}
     43 !llvm.ident = !{!10}
     44 
     45 !0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression())
     46 !1 = distinct !DIGlobalVariable(name: "var", scope: !2, file: !3, line: 1, type: !6, isLocal: false, isDefinition: true)
     47 !2 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !3, producer: "clang version 7.0.0 (trunk 322268) (llvm/trunk 322267)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, globals: !5)
     48 !3 = !DIFile(filename: "debugger-tune.cpp", directory: "/tmp")
     49 !4 = !{}
     50 !5 = !{!0}
     51 !6 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
     52 !7 = !{i32 2, !"Dwarf Version", i32 4}
     53 !8 = !{i32 2, !"Debug Info Version", i32 3}
     54 !9 = !{i32 1, !"wchar_size", i32 4}
     55 !10 = !{!"clang version 7.0.0 (trunk 322268) (llvm/trunk 322267)"}
     56 !11 = distinct !DISubprogram(name: "fun", linkageName: "_Z3funv", scope: !3, file: !3, line: 2, type: !12, isLocal: false, isDefinition: true, scopeLine: 2, flags: DIFlagPrototyped, isOptimized: true, unit: !2, retainedNodes: !4)
     57 !12 = !DISubroutineType(types: !13)
     58 !13 = !{null}
     59 !14 = !DILocation(line: 2, column: 13, scope: !11)
     60 
     61