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a4610c7182
This adds support for DW_IDX_parent. If DIE has a parent then DW_IDX_parent in Entry will point to Entry for that parent DIE. Otherwise it will have DW_FORM_flag_present in abbrev. Which takes zero space in Entry. This came from https://discourse.llvm.org/t/rfc-improve-dwarf-5-debug-names-type-lookup-parsing-speed/74151
110 lines
3.9 KiB
Plaintext
110 lines
3.9 KiB
Plaintext
; RUN: rm -rf %t
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; RUN: mkdir %t
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; RUN: cd %t
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; RUN: llvm-mc -dwarf-version=5 -filetype=obj -triple x86_64-unknown-linux %p/Inputs/dwarf5-df-debug-names-main.s \
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; RUN: -split-dwarf-file=main.dwo -o main.o
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; RUN: %clang %cflags -gdwarf-5 -gsplit-dwarf=split main.o -o main.exe
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; RUN: llvm-bolt main.exe -o main.exe.bolt --update-debug-sections
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; RUN: llvm-dwarfdump --debug-info --debug-names main.exe.bolt > log.txt
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; RUN: cat log.txt | FileCheck -check-prefix=BOLT %s
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;; Tests that BOLT correctly generates .debug_names section with one CU for split dwarf.
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; BOLT: [[OFFSET:0x[0-9a-f]*]]: Compile Unit
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; BOLT: Name Index @ 0x0 {
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; BOLT-NEXT: Header {
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; BOLT-NEXT: Length: 0xAF
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; BOLT-NEXT: Format: DWARF32
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; BOLT-NEXT: Version: 5
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; BOLT-NEXT: CU count: 1
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; BOLT-NEXT: Local TU count: 0
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; BOLT-NEXT: Foreign TU count: 0
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; BOLT-NEXT: Bucket count: 5
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; BOLT-NEXT: Name count: 5
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; BOLT-NEXT: Abbreviations table size: 0x19
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; BOLT-NEXT: Augmentation: 'BOLT'
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; BOLT-NEXT: }
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; BOLT-NEXT: Compilation Unit offsets [
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; BOLT-NEXT: CU[0]: 0x00000000
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; BOLT-NEXT: ]
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; BOLT-NEXT: Abbreviations [
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; BOLT-NEXT: Abbreviation [[ABBREV1:0x[0-9a-f]*]] {
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; BOLT-NEXT: Tag: DW_TAG_structure_type
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; BOLT-NEXT: DW_IDX_die_offset: DW_FORM_ref4
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; BOLT-NEXT: DW_IDX_parent: DW_FORM_flag_present
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; BOLT-NEXT: }
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; BOLT-NEXT: Abbreviation [[ABBREV2:0x[0-9a-f]*]] {
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; BOLT-NEXT: Tag: DW_TAG_subprogram
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; BOLT-NEXT: DW_IDX_die_offset: DW_FORM_ref4
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; BOLT-NEXT: DW_IDX_parent: DW_FORM_flag_present
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; BOLT-NEXT: }
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; BOLT-NEXT: Abbreviation [[ABBREV3:0x[0-9a-f]*]] {
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; BOLT-NEXT: Tag: DW_TAG_base_type
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; BOLT-NEXT: DW_IDX_die_offset: DW_FORM_ref4
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; BOLT-NEXT: DW_IDX_parent: DW_FORM_flag_present
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; BOLT-NEXT: }
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; BOLT-NEXT: ]
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; BOLT-NEXT: Bucket 0 [
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; BOLT-NEXT: EMPTY
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; BOLT-NEXT: ]
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; BOLT-NEXT: Bucket 1 [
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; BOLT-NEXT: Name 1 {
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; BOLT-NEXT: Hash: 0x7C96E4DB
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; BOLT-NEXT: String: {{.+}} "Foo2"
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; BOLT-NEXT: Entry @ {{.+}} {
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; BOLT-NEXT: Abbrev: [[ABBREV1]]
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; BOLT-NEXT: Tag: DW_TAG_structure_type
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; BOLT-NEXT: DW_IDX_die_offset: 0x00000068
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; BOLT-NEXT: DW_IDX_parent: <parent not indexed>
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; BOLT-NEXT: }
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; BOLT-NEXT: }
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; BOLT-NEXT: Name 2 {
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; BOLT-NEXT: Hash: 0x7C9A7F6A
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; BOLT-NEXT: String: {{.+}} "main"
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; BOLT-NEXT: Entry @ {{.+}} {
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; BOLT-NEXT: Abbrev: [[ABBREV2]]
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; BOLT-NEXT: Tag: DW_TAG_subprogram
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; BOLT-NEXT: DW_IDX_die_offset: 0x0000001a
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; BOLT-NEXT: DW_IDX_parent: <parent not indexed>
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; BOLT-NEXT: }
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; BOLT-NEXT: }
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; BOLT-NEXT: ]
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; BOLT-NEXT: Bucket 2 [
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; BOLT-NEXT: EMPTY
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; BOLT-NEXT: ]
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; BOLT-NEXT: Bucket 3 [
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; BOLT-NEXT: Name 3 {
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; BOLT-NEXT: Hash: 0xB888030
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; BOLT-NEXT: String: {{.+}} "int"
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; BOLT-NEXT: Entry @ {{.+}} {
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; BOLT-NEXT: Abbrev: [[ABBREV3]]
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; BOLT-NEXT: Tag: DW_TAG_base_type
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; BOLT-NEXT: DW_IDX_die_offset: 0x00000056
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; BOLT-NEXT: DW_IDX_parent: <parent not indexed>
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; BOLT-NEXT: }
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; BOLT-NEXT: }
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; BOLT-NEXT: ]
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; BOLT-NEXT: Bucket 4 [
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; BOLT-NEXT: Name 4 {
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; BOLT-NEXT: Hash: 0xF73809C
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; BOLT-NEXT: String: {{.+}} "Foo2a"
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; BOLT-NEXT: Entry @ {{.+}} {
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; BOLT-NEXT: Abbrev: [[ABBREV1]]
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; BOLT-NEXT: Tag: DW_TAG_structure_type
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; BOLT-NEXT: DW_IDX_die_offset: 0x00000078
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; BOLT-NEXT: DW_IDX_parent: <parent not indexed>
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; BOLT-NEXT: }
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; BOLT-NEXT: }
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; BOLT-NEXT: Name 5 {
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; BOLT-NEXT: Hash: 0x7C952063
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; BOLT-NEXT: String: {{.+}} "char"
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; BOLT-NEXT: Entry @ {{.+}} {
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; BOLT-NEXT: Abbrev: [[ABBREV3]]
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; BOLT-NEXT: Tag: DW_TAG_base_type
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; BOLT-NEXT: DW_IDX_die_offset: 0x00000064
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; BOLT-NEXT: DW_IDX_parent: <parent not indexed>
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; BOLT-NEXT: }
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; BOLT-NEXT: }
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; BOLT-NEXT: ]
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; BOLT-NEXT: }
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