[llvm] r323670 - [DWARF] Recommitting a test reverted in r323560. Moved to x86 directory with explicit triple.
Wolfgang Pieb via llvm-commits
llvm-commits at lists.llvm.org
Mon Jan 29 09:49:10 PST 2018
Author: wolfgangp
Date: Mon Jan 29 09:49:10 2018
New Revision: 323670
URL: http://llvm.org/viewvc/llvm-project?rev=323670&view=rev
Log:
[DWARF] Recommitting a test reverted in r323560. Moved to x86 directory with explicit triple.
ELF support is required for type units.
Added:
llvm/trunk/test/DebugInfo/X86/string-offsets-multiple-cus.ll
Added: llvm/trunk/test/DebugInfo/X86/string-offsets-multiple-cus.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/DebugInfo/X86/string-offsets-multiple-cus.ll?rev=323670&view=auto
==============================================================================
--- llvm/trunk/test/DebugInfo/X86/string-offsets-multiple-cus.ll (added)
+++ llvm/trunk/test/DebugInfo/X86/string-offsets-multiple-cus.ll Mon Jan 29 09:49:10 2018
@@ -0,0 +1,157 @@
+; REQUIRES: object-emission
+; RUN: %llc_dwarf -mtriple=x86_64-unknown-linux-gnu -filetype=obj < %s | llvm-dwarfdump -v - | \
+; RUN: FileCheck --check-prefix=DEFAULT --check-prefix=BOTH %s
+; RUN: %llc_dwarf -mtriple=x86_64-unknown-linux-gnu -filetype=obj -generate-type-units < %s | \
+; RUN: llvm-dwarfdump -v - | FileCheck --check-prefix=TYPEUNITS --check-prefix=BOTH %s
+;
+; Check that we generate the DWARF v5 string offsets section correctly when we
+; have multiple compile and type units. All units share one contribution to
+; the string offsets section.
+;
+; Constructed from the following sources with
+; clang -gdwarf-5 -emit-llvm -S a.cpp
+; clang -gdwarf-5 -emit-llvm -S b.cpp
+; clang -gdwarf-5 -emit-llvm -S c.cpp
+; llvm-link a.ll b.ll c.ll -o test.bc
+; llvm-dis test.bc -o test.ll
+;
+; a.cpp:
+; enum E1 {a, b, c};
+; E1 glob1;
+;
+; b.cpp:
+; enum E2 {d, e, f};
+; E2 glob2;
+;
+; c.cpp:
+; enum E3 {g, h, i};
+; E3 glob3;
+;
+; Check that all 3 compile units have the correct DW_AT_str_offsets_base attributes
+; with the correct offsets. Check that strings referenced by compile units 2 and 3
+; are displayed correctly.
+;
+; CU 1
+; BOTH: .debug_info contents:
+; BOTH-NOT: .contents:
+; BOTH: DW_TAG_compile_unit
+; BOTH-NOT: {{DW_TAG|NULL}}
+; BOTH: DW_AT_str_offsets_base [DW_FORM_sec_offset] (0x[[CU1_STROFF:[0-9a-f]+]])
+;
+; CU 2
+; BOTH-NOT: contents:
+; BOTH: DW_TAG_compile_unit
+; BOTH-NOT: {{DW_TAG|NULL}}
+; BOTH: DW_AT_str_offsets_base [DW_FORM_sec_offset] (0x[[CU1_STROFF]])
+; BOTH-NOT: NULL
+; BOTH: DW_TAG_variable
+; BOTH-NOT: {{DW_TAG|NULL}}
+; BOTH: DW_AT_name [DW_FORM_strx1] ( indexed (00000009) string = "glob2")
+;
+; CU 3
+; BOTH-NOT: contents:
+; BOTH: DW_TAG_compile_unit
+; BOTH-NOT: {{DW_TAG|NULL}}
+; BOTH: DW_AT_str_offsets_base [DW_FORM_sec_offset] (0x[[CU1_STROFF]])
+; BOTH-NOT: NULL
+; BOTH: DW_TAG_variable
+; BOTH-NOT: {{DW_TAG|NULL}}
+; BOTH: DW_AT_name [DW_FORM_strx1] ( indexed (0000000f) string = "glob3")
+;
+; Verify that all 3 type units have the proper DW_AT_str_offsets_base attribute.
+; TYPEUNITS: .debug_types contents:
+; TYPEUNITS-NOT: contents:
+; TYPEUNITS: DW_TAG_type_unit
+; TYPEUNITS-NOT: {{DW_TAG|NULL}}
+; TYPEUNITS: DW_AT_str_offsets_base [DW_FORM_sec_offset] (0x[[CU1_STROFF]])
+; TYPEUNITS-NOT: NULL
+; TYPEUNITS: DW_TAG_enumerator
+; TYPEUNITS-NOT: NULL
+; TYPEUNITS: DW_TAG_enumerator
+; TYPEUNITS-NOT: {{DW_TAG|NULL}}
+; TYPEUNITS: DW_AT_name [DW_FORM_strx1] ( indexed (00000005) string = "b")
+; TYPEUNITS-NOT: contents:
+; TYPEUNITS: DW_TAG_type_unit
+; TYPEUNITS-NOT: {{DW_TAG|NULL}}
+; TYPEUNITS: DW_AT_str_offsets_base [DW_FORM_sec_offset] (0x[[CU1_STROFF]])
+; TYPEUNITS-NOT: NULL
+; TYPEUNITS: DW_TAG_enumeration_type
+; TYPEUNITS: DW_AT_name [DW_FORM_strx1] ( indexed (0000000d) string = "E2")
+; TYPEUNITS-NOT: contents:
+; TYPEUNITS: DW_TAG_type_unit
+; TYPEUNITS-NOT: {{DW_TAG|NULL}}
+; TYPEUNITS: DW_AT_str_offsets_base [DW_FORM_sec_offset] (0x[[CU1_STROFF]])
+; TYPEUNITS-NOT: NULL
+; TYPEUNITS: DW_TAG_enumeration_type
+; TYPEUNITS: DW_AT_name [DW_FORM_strx1] ( indexed (00000013) string = "E3")
+;
+; Extract the offset of a string to verify that it is referenced in the string
+; offsets section.
+; BOTH: .debug_str contents:
+; BOTH-NOT: contents:
+; BOTH: 0x[[GLOB2OFF:[0-9a-f]+]]: "glob2"
+;
+; Check the .debug_str_offsets section header and make sure the referenced string
+; has the correct offset.
+; BOTH: .debug_str_offsets contents:
+; BOTH-NEXT: 0x00000000: Contribution size = 80, Format = DWARF32, Version = 5
+; BOTH-NEXT: 0x[[CU1_STROFF]]:
+; BOTH-NEXT: {{.*:}}
+; BOTH-NEXT: {{.*:}}
+; BOTH-NEXT: {{.*:}}
+; BOTH-NEXT: {{.*:}}
+; BOTH-NEXT: {{.*:}}
+; BOTH-NEXT: {{.*:}}
+; BOTH-NEXT: {{.*:}}
+; BOTH-NEXT: {{.*:}}
+; The string with index 9 should be "glob2"
+; BOTH-NEXT: {{.*:}} [[GLOB2OFF]]
+;
+; ModuleID = 'test.bc'
+source_filename = "llvm-link"
+
+ at glob1 = global i32 0, align 4, !dbg !0
+ at glob2 = global i32 0, align 4, !dbg !11
+ at glob3 = global i32 0, align 4, !dbg !22
+
+!llvm.dbg.cu = !{!2, !13, !24}
+!llvm.ident = !{!33, !33, !33}
+!llvm.module.flags = !{!34, !35, !36}
+
+!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression())
+!1 = distinct !DIGlobalVariable(name: "glob1", scope: !2, file: !3, line: 2, type: !5, isLocal: false, isDefinition: true)
+!2 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !3, producer: "clang version 7.0.0 (trunk 322415)", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, globals: !10)
+!3 = !DIFile(filename: "a1.cpp", directory: "/home/test", checksumkind: CSK_MD5, checksum: "2ca3eeed18355d6ebbae671eafda5aae")
+!4 = !{!5}
+!5 = distinct !DICompositeType(tag: DW_TAG_enumeration_type, name: "E1", file: !3, line: 1, size: 32, elements: !6, identifier: "_ZTS2E1")
+!6 = !{!7, !8, !9}
+!7 = !DIEnumerator(name: "a", value: 0)
+!8 = !DIEnumerator(name: "b", value: 1)
+!9 = !DIEnumerator(name: "c", value: 2)
+!10 = !{!0}
+!11 = !DIGlobalVariableExpression(var: !12, expr: !DIExpression())
+!12 = distinct !DIGlobalVariable(name: "glob2", scope: !13, file: !14, line: 2, type: !16, isLocal: false, isDefinition: true)
+!13 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !14, producer: "clang version 7.0.0 (trunk 322415)", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !15, globals: !21)
+!14 = !DIFile(filename: "b.cpp", directory: "/home/test", checksumkind: CSK_MD5, checksum: "0e254f89617ecb6c4e5473546a99435c")
+!15 = !{!16}
+!16 = distinct !DICompositeType(tag: DW_TAG_enumeration_type, name: "E2", file: !14, line: 1, size: 32, elements: !17, identifier: "_ZTS2E2")
+!17 = !{!18, !19, !20}
+!18 = !DIEnumerator(name: "d", value: 0)
+!19 = !DIEnumerator(name: "e", value: 1)
+!20 = !DIEnumerator(name: "f", value: 2)
+!21 = !{!11}
+!22 = !DIGlobalVariableExpression(var: !23, expr: !DIExpression())
+!23 = distinct !DIGlobalVariable(name: "glob3", scope: !24, file: !25, line: 2, type: !27, isLocal: false, isDefinition: true)
+!24 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !25, producer: "clang version 7.0.0 (trunk 322415)", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !26, globals: !32)
+!25 = !DIFile(filename: "c.cpp", directory: "/home/test", checksumkind: CSK_MD5, checksum: "7835aaaa683fa09d295adef0e934d392")
+!26 = !{!27}
+!27 = distinct !DICompositeType(tag: DW_TAG_enumeration_type, name: "E3", file: !25, line: 1, size: 32, elements: !28, identifier: "_ZTS2E3")
+!28 = !{!29, !30, !31}
+!29 = !DIEnumerator(name: "g", value: 0)
+!30 = !DIEnumerator(name: "h", value: 1)
+!31 = !DIEnumerator(name: "i", value: 2)
+!32 = !{!22}
+!33 = !{!"clang version 7.0.0 (trunk 322415)"}
+!34 = !{i32 2, !"Dwarf Version", i32 5}
+!35 = !{i32 2, !"Debug Info Version", i32 3}
+!36 = !{i32 1, !"wchar_size", i32 4}
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