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a9fbb2813b
This patch reverses the edge from DIGlobalVariable to GlobalVariable. This will allow us to more easily preserve debug info metadata when manipulating global variables. Fixes PR30362. A program for upgrading test cases is attached to that bug. Differential Revision: http://reviews.llvm.org/D20147 llvm-svn: 281284
119 lines
5.0 KiB
LLVM
119 lines
5.0 KiB
LLVM
; RUN: llc -split-dwarf=Enable -O0 %s -mtriple=x86_64-unknown-linux-gnu -filetype=obj -o %t
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; RUN: llvm-dwarfdump -debug-dump=all %t | FileCheck %s
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; RUN: llvm-readobj --relocations %t | FileCheck --check-prefix=OBJ %s
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; RUN: llvm-objdump -h %t | FileCheck --check-prefix=HDR %s
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@a = common global i32 0, align 4, !dbg !5
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!9}
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!0 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.3 (trunk 169021) (llvm/trunk 169020)", isOptimized: false, splitDebugFilename: "baz.dwo", emissionKind: FullDebug, file: !8, enums: !1, retainedTypes: !1, globals: !3, imports: !1)
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!1 = !{}
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!3 = !{!5}
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!5 = !DIGlobalVariable(name: "a", line: 1, isLocal: false, isDefinition: true, scope: null, file: !6, type: !7)
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!6 = !DIFile(filename: "baz.c", directory: "/usr/local/google/home/echristo/tmp")
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!7 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
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!8 = !DIFile(filename: "baz.c", directory: "/usr/local/google/home/echristo/tmp")
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; Check that the skeleton compile unit contains the proper attributes:
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; This DIE has the following attributes: DW_AT_comp_dir, DW_AT_stmt_list,
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; DW_AT_low_pc, DW_AT_high_pc, DW_AT_ranges, DW_AT_dwo_name, DW_AT_dwo_id,
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; DW_AT_ranges_base, DW_AT_addr_base.
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; CHECK: .debug_abbrev contents:
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; CHECK: Abbrev table for offset: 0x00000000
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; CHECK: [1] DW_TAG_compile_unit DW_CHILDREN_no
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; CHECK: DW_AT_stmt_list DW_FORM_sec_offset
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; CHECK: DW_AT_GNU_dwo_name DW_FORM_strp
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; CHECK: DW_AT_comp_dir DW_FORM_strp
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; CHECK: DW_AT_GNU_dwo_id DW_FORM_data8
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; Check that we're using the right forms.
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; CHECK: .debug_abbrev.dwo contents:
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; CHECK: Abbrev table for offset: 0x00000000
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; CHECK: [1] DW_TAG_compile_unit DW_CHILDREN_yes
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; CHECK: DW_AT_GNU_dwo_name DW_FORM_GNU_str_index
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; CHECK: DW_AT_producer DW_FORM_GNU_str_index
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; CHECK: DW_AT_language DW_FORM_data2
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; CHECK: DW_AT_name DW_FORM_GNU_str_index
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; CHECK-NOT: DW_AT_low_pc
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; CHECK-NOT: DW_AT_stmt_list
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; CHECK-NOT: DW_AT_comp_dir
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; CHECK: DW_AT_GNU_dwo_id DW_FORM_data8
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; CHECK: [2] DW_TAG_variable DW_CHILDREN_no
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; CHECK: DW_AT_name DW_FORM_GNU_str_index
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; CHECK: DW_AT_type DW_FORM_ref4
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; CHECK: DW_AT_external DW_FORM_flag_present
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; CHECK: DW_AT_decl_file DW_FORM_data1
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; CHECK: DW_AT_decl_line DW_FORM_data1
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; CHECK: DW_AT_location DW_FORM_exprloc
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; CHECK: [3] DW_TAG_base_type DW_CHILDREN_no
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; CHECK: DW_AT_name DW_FORM_GNU_str_index
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; CHECK: DW_AT_encoding DW_FORM_data1
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; CHECK: DW_AT_byte_size DW_FORM_data1
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; CHECK: .debug_info contents:
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; CHECK: DW_TAG_compile_unit
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; CHECK-NEXT: DW_AT_stmt_list [DW_FORM_sec_offset] (0x00000000)
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; CHECK-NEXT: DW_AT_GNU_dwo_name [DW_FORM_strp] ( .debug_str[0x00000000] = "baz.dwo")
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; CHECK-NEXT: DW_AT_comp_dir [DW_FORM_strp] ( .debug_str[0x00000008] = "/usr/local/google/home/echristo/tmp")
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; CHECK-NEXT: DW_AT_GNU_dwo_id [DW_FORM_data8] (0x1f1f859683d49324)
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; Check that the rest of the compile units have information.
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; CHECK: .debug_info.dwo contents:
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; CHECK: DW_TAG_compile_unit
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; CHECK: DW_AT_GNU_dwo_name [DW_FORM_GNU_str_index] ( indexed (00000000) string = "baz.dwo")
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; CHECK: DW_AT_producer [DW_FORM_GNU_str_index] ( indexed (00000001) string = "clang version 3.3 (trunk 169021) (llvm/trunk 169020)")
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; CHECK: DW_AT_language [DW_FORM_data2] (DW_LANG_C99)
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; CHECK: DW_AT_name [DW_FORM_GNU_str_index] ( indexed (00000002) string = "baz.c")
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; CHECK-NOT: DW_AT_low_pc
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; CHECK-NOT: DW_AT_stmt_list
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; CHECK-NOT: DW_AT_comp_dir
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; CHECK: DW_AT_GNU_dwo_id [DW_FORM_data8] (0x1f1f859683d49324)
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; CHECK: DW_TAG_variable
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; CHECK: DW_AT_name [DW_FORM_GNU_str_index] ( indexed (00000003) string = "a")
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; CHECK: DW_AT_type [DW_FORM_ref4] (cu + 0x{{[0-9a-f]*}} => {[[TYPE:0x[0-9a-f]*]]})
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; CHECK: DW_AT_external [DW_FORM_flag_present] (true)
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; CHECK: DW_AT_decl_file [DW_FORM_data1] (0x01)
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; CHECK: DW_AT_decl_line [DW_FORM_data1] (1)
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; CHECK: DW_AT_location [DW_FORM_exprloc] (<0x2> fb 00 )
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; CHECK: [[TYPE]]: DW_TAG_base_type
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; CHECK: DW_AT_name [DW_FORM_GNU_str_index] ( indexed (00000004) string = "int")
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; CHECK: .debug_str contents:
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; CHECK: 0x00000000: "baz.dwo"
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; CHECK: 0x00000008: "/usr/local/google/home/echristo/tmp"
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; CHECK: .debug_str.dwo contents:
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; CHECK: 0x00000000: "baz.dwo"
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; CHECK: 0x00000008: "clang version 3.3 (trunk 169021) (llvm/trunk 169020)"
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; CHECK: 0x0000003d: "baz.c"
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; CHECK: 0x00000043: "a"
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; CHECK: 0x00000045: "int"
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; CHECK: .debug_str_offsets.dwo contents:
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; CHECK: 0x00000000: 00000000
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; CHECK: 0x00000004: 00000008
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; CHECK: 0x00000008: 0000003d
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; CHECK: 0x0000000c: 00000043
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; CHECK: 0x00000010: 00000045
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; Object file checks
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; For x86-64-linux we should have this set of relocations for the debug info section
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;
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; OBJ: .debug_info
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; OBJ-NEXT: R_X86_64_32 .debug_abbrev
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; OBJ-NEXT: R_X86_64_32 .debug_line
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; OBJ-NEXT: R_X86_64_32 .debug_str
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; OBJ-NEXT: R_X86_64_32 .debug_str
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; OBJ-NEXT: R_X86_64_32 .debug_addr
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; OBJ-NEXT: }
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; HDR-NOT: .debug_aranges
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; HDR-NOT: .rela.{{.*}}.dwo
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!9 = !{i32 1, !"Debug Info Version", i32 3}
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