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      1 ; RUN: llc -O0 %s -mtriple=x86_64-apple-darwin -filetype=obj -o %t
      2 ; RUN: llvm-dwarfdump %t | FileCheck %s
      3 ; RUN: llc -O0 %s -mtriple=x86_64-apple-darwin -filetype=obj -o %t -dwarf-version=3
      4 ; RUN: llvm-dwarfdump %t | FileCheck %s -check-prefix=DWARF3
      5 ; RUN: llc < %s -O0 -mtriple=x86_64-apple-macosx10.7 | FileCheck %s -check-prefix=ASM
      6 
      7 ; rdar://13067005
      8 ; CHECK: .debug_info contents:
      9 ; CHECK: DW_TAG_compile_unit
     10 ; CHECK: DW_AT_stmt_list [DW_FORM_sec_offset]   (0x00000000)
     11 ; CHECK: DW_AT_low_pc [DW_FORM_addr]            (0x0000000000000000)
     12 ; CHECK: DW_AT_high_pc [DW_FORM_data4]          (0x00000010)
     13 ; CHECK: DW_TAG_subprogram
     14 ; CHECK: DW_AT_low_pc [DW_FORM_addr]            (0x0000000000000000)
     15 ; CHECK: DW_AT_high_pc [DW_FORM_data4]          (0x00000010)
     16 
     17 ; CHECK: DW_TAG_compile_unit
     18 ; CHECK: DW_AT_stmt_list [DW_FORM_sec_offset]   (0x0000003c)
     19 ; CHECK: DW_AT_low_pc [DW_FORM_addr]            (0x0000000000000010)
     20 ; CHECK: DW_AT_high_pc [DW_FORM_data4]          (0x00000009)
     21 ; CHECK: DW_TAG_subprogram
     22 ; CHECK: DW_AT_low_pc [DW_FORM_addr]            (0x0000000000000010)
     23 ; CHECK: DW_AT_high_pc [DW_FORM_data4]          (0x00000009)
     24 
     25 
     26 ; CHECK: .debug_line contents:
     27 ; CHECK-NEXT: Line table prologue:
     28 ; CHECK-NEXT: total_length: 0x00000038
     29 ; CHECK: file_names[  1]    0 0x00000000 0x00000000 simple.c
     30 ; CHECK: Line table prologue:
     31 ; CHECK-NEXT: total_length: 0x00000039
     32 ; CHECK: file_names[  1]    0 0x00000000 0x00000000 simple2.c
     33 ; CHECK-NOT: file_names
     34 
     35 ; DWARF3: .debug_info contents:
     36 ; DWARF3: DW_TAG_compile_unit
     37 ; DWARF3: DW_AT_stmt_list [DW_FORM_data4]    (0x00000000)
     38 
     39 ; DWARF3: DW_TAG_compile_unit
     40 ; DWARF3: DW_AT_stmt_list [DW_FORM_data4]   (0x0000003c)
     41 
     42 
     43 ; DWARF3: .debug_line contents:
     44 ; DWARF3-NEXT: Line table prologue:
     45 ; DWARF3-NEXT: total_length: 0x00000038
     46 ; DWARF3: file_names[  1]    0 0x00000000 0x00000000 simple.c
     47 ; DWARF3: Line table prologue:
     48 ; DWARF3-NEXT: total_length: 0x00000039
     49 ; DWARF3: file_names[  1]    0 0x00000000 0x00000000 simple2.c
     50 ; DWARF3-NOT: file_names
     51 
     52 ; PR15408
     53 ; ASM: Lcu_begin0:
     54 ; ASM-NOT: Lcu_begin
     55 ; ASM: Lset[[LT:[0-9]+]] = Lline_table_start0-Lsection_line ## DW_AT_stmt_list
     56 ; ASM-NEXT: .long   Lset[[LT]]
     57 ; ASM: Lcu_begin1:
     58 ; ASM-NOT: Lcu_begin
     59 ; ASM: Lset[[LT:[0-9]+]] = Lline_table_start0-Lsection_line ## DW_AT_stmt_list
     60 ; ASM-NEXT: .long   Lset[[LT]]
     61 define i32 @test(i32 %a) nounwind uwtable ssp !dbg !5 {
     62 entry:
     63   %a.addr = alloca i32, align 4
     64   store i32 %a, i32* %a.addr, align 4
     65   call void @llvm.dbg.declare(metadata i32* %a.addr, metadata !15, metadata !DIExpression()), !dbg !16
     66   %0 = load i32, i32* %a.addr, align 4, !dbg !17
     67   %call = call i32 @fn(i32 %0), !dbg !17
     68   ret i32 %call, !dbg !17
     69 }
     70 
     71 declare void @llvm.dbg.declare(metadata, metadata, metadata) nounwind readnone
     72 
     73 define i32 @fn(i32 %a) nounwind uwtable ssp !dbg !13 {
     74 entry:
     75   %a.addr = alloca i32, align 4
     76   store i32 %a, i32* %a.addr, align 4
     77   call void @llvm.dbg.declare(metadata i32* %a.addr, metadata !19, metadata !DIExpression()), !dbg !20
     78   %0 = load i32, i32* %a.addr, align 4, !dbg !21
     79   ret i32 %0, !dbg !21
     80 }
     81 
     82 !llvm.dbg.cu = !{!0, !10}
     83 !llvm.module.flags = !{!25}
     84 !0 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.3", isOptimized: false, emissionKind: FullDebug, file: !23, enums: !1, retainedTypes: !1, globals: !1, imports:  !1)
     85 !1 = !{}
     86 !5 = distinct !DISubprogram(name: "test", line: 2, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 3, file: !23, scope: !6, type: !7, variables: !1)
     87 !6 = !DIFile(filename: "simple.c", directory: "/private/tmp")
     88 !7 = !DISubroutineType(types: !8)
     89 !8 = !{!9, !9}
     90 !9 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
     91 !10 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.3 (trunk 172862)", isOptimized: false, emissionKind: FullDebug, file: !24, enums: !1, retainedTypes: !1, globals: !1, imports:  !1)
     92 !13 = distinct !DISubprogram(name: "fn", line: 1, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !10, scopeLine: 1, file: !24, scope: !14, type: !7, variables: !1)
     93 !14 = !DIFile(filename: "simple2.c", directory: "/private/tmp")
     94 !15 = !DILocalVariable(name: "a", line: 2, arg: 1, scope: !5, file: !6, type: !9)
     95 !16 = !DILocation(line: 2, scope: !5)
     96 !17 = !DILocation(line: 4, scope: !18)
     97 !18 = distinct !DILexicalBlock(line: 3, column: 0, file: !23, scope: !5)
     98 !19 = !DILocalVariable(name: "a", line: 1, arg: 1, scope: !13, file: !14, type: !9)
     99 !20 = !DILocation(line: 1, scope: !13)
    100 !21 = !DILocation(line: 2, scope: !22)
    101 !22 = distinct !DILexicalBlock(line: 1, column: 0, file: !24, scope: !13)
    102 !23 = !DIFile(filename: "simple.c", directory: "/private/tmp")
    103 !24 = !DIFile(filename: "simple2.c", directory: "/private/tmp")
    104 !25 = !{i32 1, !"Debug Info Version", i32 3}
    105