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llvm-project/llvm/test/CodeGen/X86/dwarf-headers.ll

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Move Split DWARF handling to an MC option/command line argument rather than using metadata Since Split DWARF needs to name the actual .dwo file that is generated, it can't be known at the time the llvm::Module is produced as it may be merged with other Modules before the object is generated and that object may be generated with any name. By passing the Split DWARF file name when LLVM is producing object code the .dwo file name in the object file can match correctly. The support for Split DWARF for implicit modules remains the same - using metadata to store the dwo name and dwo id so that potentially multiple skeleton CUs referring to different dwo files can be generated from one llvm::Module. llvm-svn: 301062
2017-04-22 07:35:26 +08:00
; RUN: llc -dwarf-version=4 -generate-type-units \
[DWARFv5] Emit new unit header format. Requesting DWARF v5 will now get you the new compile-unit and type-unit headers. llvm-dwarfdump will also recognize them. Differential Revision: http://reviews.llvm.org/D30206 llvm-svn: 296514
2017-03-01 04:24:55 +08:00
; RUN: -filetype=obj -O0 -mtriple=x86_64-unknown-linux-gnu < %s \
llvm-dwarfdump: Make -brief the default and add a -verbose option instead. Differential Revision: https://reviews.llvm.org/D37717 llvm-svn: 312972
2017-09-12 07:05:20 +08:00
; RUN: | llvm-dwarfdump -v - | FileCheck %s --check-prefix=SINGLE-4
[DWARFv5] Emit new unit header format. Requesting DWARF v5 will now get you the new compile-unit and type-unit headers. llvm-dwarfdump will also recognize them. Differential Revision: http://reviews.llvm.org/D30206 llvm-svn: 296514
2017-03-01 04:24:55 +08:00
CodeGen: Add a dwo output file argument to addPassesToEmitFile and hook it up to dwo output. Part of PR37466. Differential Revision: https://reviews.llvm.org/D47089 llvm-svn: 332881
2018-05-22 04:16:41 +08:00
; RUN: llc -split-dwarf-file=foo.dwo -split-dwarf-output=%t.dwo \
; RUN: -dwarf-version=4 -generate-type-units \
[DWARFv5] Emit new unit header format. Requesting DWARF v5 will now get you the new compile-unit and type-unit headers. llvm-dwarfdump will also recognize them. Differential Revision: http://reviews.llvm.org/D30206 llvm-svn: 296514
2017-03-01 04:24:55 +08:00
; RUN: -filetype=obj -O0 -mtriple=x86_64-unknown-linux-gnu < %s \
CodeGen: Add a dwo output file argument to addPassesToEmitFile and hook it up to dwo output. Part of PR37466. Differential Revision: https://reviews.llvm.org/D47089 llvm-svn: 332881
2018-05-22 04:16:41 +08:00
; RUN: | llvm-dwarfdump -v - | FileCheck %s --check-prefix=O-4
; RUN: llvm-dwarfdump -v %t.dwo | FileCheck %s --check-prefix=DWO-4
[DWARFv5] Emit new unit header format. Requesting DWARF v5 will now get you the new compile-unit and type-unit headers. llvm-dwarfdump will also recognize them. Differential Revision: http://reviews.llvm.org/D30206 llvm-svn: 296514
2017-03-01 04:24:55 +08:00
Move Split DWARF handling to an MC option/command line argument rather than using metadata Since Split DWARF needs to name the actual .dwo file that is generated, it can't be known at the time the llvm::Module is produced as it may be merged with other Modules before the object is generated and that object may be generated with any name. By passing the Split DWARF file name when LLVM is producing object code the .dwo file name in the object file can match correctly. The support for Split DWARF for implicit modules remains the same - using metadata to store the dwo name and dwo id so that potentially multiple skeleton CUs referring to different dwo files can be generated from one llvm::Module. llvm-svn: 301062
2017-04-22 07:35:26 +08:00
; RUN: llc -dwarf-version=5 -generate-type-units \
[DWARFv5] Emit new unit header format. Requesting DWARF v5 will now get you the new compile-unit and type-unit headers. llvm-dwarfdump will also recognize them. Differential Revision: http://reviews.llvm.org/D30206 llvm-svn: 296514
2017-03-01 04:24:55 +08:00
; RUN: -filetype=obj -O0 -mtriple=x86_64-unknown-linux-gnu < %s \
llvm-dwarfdump: Make -brief the default and add a -verbose option instead. Differential Revision: https://reviews.llvm.org/D37717 llvm-svn: 312972
2017-09-12 07:05:20 +08:00
; RUN: | llvm-dwarfdump -v - | FileCheck %s --check-prefix=SINGLE-5
[DWARFv5] Emit new unit header format. Requesting DWARF v5 will now get you the new compile-unit and type-unit headers. llvm-dwarfdump will also recognize them. Differential Revision: http://reviews.llvm.org/D30206 llvm-svn: 296514
2017-03-01 04:24:55 +08:00
CodeGen: Add a dwo output file argument to addPassesToEmitFile and hook it up to dwo output. Part of PR37466. Differential Revision: https://reviews.llvm.org/D47089 llvm-svn: 332881
2018-05-22 04:16:41 +08:00
; RUN: llc -split-dwarf-file=foo.dwo -split-dwarf-output=%t.dwo \
; RUN: -dwarf-version=5 -generate-type-units \
[DWARFv5] Emit new unit header format. Requesting DWARF v5 will now get you the new compile-unit and type-unit headers. llvm-dwarfdump will also recognize them. Differential Revision: http://reviews.llvm.org/D30206 llvm-svn: 296514
2017-03-01 04:24:55 +08:00
; RUN: -filetype=obj -O0 -mtriple=x86_64-unknown-linux-gnu < %s \
CodeGen: Add a dwo output file argument to addPassesToEmitFile and hook it up to dwo output. Part of PR37466. Differential Revision: https://reviews.llvm.org/D47089 llvm-svn: 332881
2018-05-22 04:16:41 +08:00
; RUN: | llvm-dwarfdump -v - | FileCheck %s --check-prefix=O-5
; RUN: llvm-dwarfdump -v %t.dwo | FileCheck %s --check-prefix=DWO-5
[DWARFv5] Emit new unit header format. Requesting DWARF v5 will now get you the new compile-unit and type-unit headers. llvm-dwarfdump will also recognize them. Differential Revision: http://reviews.llvm.org/D30206 llvm-svn: 296514
2017-03-01 04:24:55 +08:00
; Looking for DWARF headers to be generated correctly.
[DWARFv5] Put the DWO ID in its place. In DWARF v5, the DWO ID is in the (split/skeleton) CU header, not an attribute on the CU DIE. This changes the size of those headers, so use the parsed size whenever we have one, for simplicitly. Differential Revision: https://reviews.llvm.org/D47158 llvm-svn: 333004
2018-05-23 01:27:31 +08:00
; There are 8 variants with 5 formats: v4 CU, v4 TU, v5 normal/partial CU,
; v5 skeleton/split CU, v5 normal/split TU. Some v5 variants differ only
; in the unit_type code, and the skeleton/split CU differs from normal/partial
; by having one extra field (dwo_id).
[DWARFv5] Emit new unit header format. Requesting DWARF v5 will now get you the new compile-unit and type-unit headers. llvm-dwarfdump will also recognize them. Differential Revision: http://reviews.llvm.org/D30206 llvm-svn: 296514
2017-03-01 04:24:55 +08:00
; (v2 thru v4 CUs are all the same, and TUs were invented in v4,
; so we don't bother checking older versions.)
; Test case built from:
;struct S {
; int s1;
;};
;
;S s;
; Verify the v4 non-split headers.
; Note that we check the exact offset of the DIEs because that tells us
; the length of the header.
;
; SINGLE-4: .debug_info contents:
; SINGLE-4: 0x00000000: Compile Unit: {{.*}} version = 0x0004 abbr_offset
; SINGLE-4: 0x0000000b: DW_TAG_compile_unit
;
; SINGLE-4: .debug_types contents:
; SINGLE-4: 0x00000000: Type Unit: {{.*}} version = 0x0004 abbr_offset
; SINGLE-4: 0x00000017: DW_TAG_type_unit
; Verify the v4 split headers.
;
CodeGen: Add a dwo output file argument to addPassesToEmitFile and hook it up to dwo output. Part of PR37466. Differential Revision: https://reviews.llvm.org/D47089 llvm-svn: 332881
2018-05-22 04:16:41 +08:00
; O-4: .debug_info contents:
; O-4: 0x00000000: Compile Unit: {{.*}} version = 0x0004 abbr_offset
; O-4: 0x0000000b: DW_TAG_compile_unit
[DWARFv5] Emit new unit header format. Requesting DWARF v5 will now get you the new compile-unit and type-unit headers. llvm-dwarfdump will also recognize them. Differential Revision: http://reviews.llvm.org/D30206 llvm-svn: 296514
2017-03-01 04:24:55 +08:00
;
CodeGen: Add a dwo output file argument to addPassesToEmitFile and hook it up to dwo output. Part of PR37466. Differential Revision: https://reviews.llvm.org/D47089 llvm-svn: 332881
2018-05-22 04:16:41 +08:00
; DWO-4: .debug_info.dwo contents:
; DWO-4: 0x00000000: Compile Unit: {{.*}} version = 0x0004 abbr_offset
; DWO-4: 0x0000000b: DW_TAG_compile_unit
[DWARFv5] Emit new unit header format. Requesting DWARF v5 will now get you the new compile-unit and type-unit headers. llvm-dwarfdump will also recognize them. Differential Revision: http://reviews.llvm.org/D30206 llvm-svn: 296514
2017-03-01 04:24:55 +08:00
;
CodeGen: Add a dwo output file argument to addPassesToEmitFile and hook it up to dwo output. Part of PR37466. Differential Revision: https://reviews.llvm.org/D47089 llvm-svn: 332881
2018-05-22 04:16:41 +08:00
; DWO-4: .debug_types.dwo contents:
; DWO-4: 0x00000000: Type Unit: {{.*}} version = 0x0004 abbr_offset
; DWO-4: 0x00000017: DW_TAG_type_unit
[DWARFv5] Emit new unit header format. Requesting DWARF v5 will now get you the new compile-unit and type-unit headers. llvm-dwarfdump will also recognize them. Differential Revision: http://reviews.llvm.org/D30206 llvm-svn: 296514
2017-03-01 04:24:55 +08:00
[DWARFv5] Emit normal type units in .debug_info comdats. Differential Revision: https://reviews.llvm.org/D54282 llvm-svn: 346540
2018-11-10 03:06:09 +08:00
; Verify the v5 non-split headers. Type units come first.
; All .debug_info sections are reported in one go, but the offset resets for
; each new section.
[DWARFv5] Emit new unit header format. Requesting DWARF v5 will now get you the new compile-unit and type-unit headers. llvm-dwarfdump will also recognize them. Differential Revision: http://reviews.llvm.org/D30206 llvm-svn: 296514
2017-03-01 04:24:55 +08:00
;
; SINGLE-5: .debug_info contents:
; SINGLE-5: 0x00000000: Type Unit: {{.*}} version = 0x0005 unit_type = DW_UT_type abbr_offset
; SINGLE-5: 0x00000018: DW_TAG_type_unit
[DWARFv5] Emit normal type units in .debug_info comdats. Differential Revision: https://reviews.llvm.org/D54282 llvm-svn: 346540
2018-11-10 03:06:09 +08:00
; SINGLE-5-NOT: contents:
; SINGLE-5: 0x00000000: Compile Unit: {{.*}} version = 0x0005 unit_type = DW_UT_compile abbr_offset
; SINGLE-5: 0x0000000c: DW_TAG_compile_unit
[DWARFv5] Emit new unit header format. Requesting DWARF v5 will now get you the new compile-unit and type-unit headers. llvm-dwarfdump will also recognize them. Differential Revision: http://reviews.llvm.org/D30206 llvm-svn: 296514
2017-03-01 04:24:55 +08:00
; Verify the v5 split headers.
;
CodeGen: Add a dwo output file argument to addPassesToEmitFile and hook it up to dwo output. Part of PR37466. Differential Revision: https://reviews.llvm.org/D47089 llvm-svn: 332881
2018-05-22 04:16:41 +08:00
; O-5: .debug_info contents:
; O-5: 0x00000000: Compile Unit: {{.*}} version = 0x0005 unit_type = DW_UT_skeleton abbr_offset
DebugInfo: Use DW_OP_addrx in DWARFv5 Reuse addresses in the address pool, even in non-split cases. llvm-svn: 344838
2018-10-20 16:54:05 +08:00
; O-5-SAME: DWO_id = 0xccd7e58ef8bf4aa6
[DWARF5][Debuginfo] Compilation unit type (DW_UT_skeleton) and root DIE (DW_TAG_compile_unit) do not match. That patch fixes incompatible compilation unit type (DW_UT_skeleton) and root DIE (DW_TAG_compile_unit) error. cat split-dwarf.cpp int main() { int a = 1; return 0; } clang++ -O -g -gsplit-dwarf -gdwarf-5 split-dwarf.cpp; llvm-dwarfdump --verify ./a.out | grep skeleton error: Compilation unit type (DW_UT_skeleton) and root DIE (DW_TAG_compile_unit) do not match. The fix is to change DW_TAG_compile_unit into DW_TAG_skeleton_unit when skeleton file is generated. Differential Revision: https://reviews.llvm.org/D70880
2019-12-01 04:48:32 +08:00
; O-5: 0x00000014: DW_TAG_skeleton_unit
[DWARFv5] Emit new unit header format. Requesting DWARF v5 will now get you the new compile-unit and type-unit headers. llvm-dwarfdump will also recognize them. Differential Revision: http://reviews.llvm.org/D30206 llvm-svn: 296514
2017-03-01 04:24:55 +08:00
;
CodeGen: Add a dwo output file argument to addPassesToEmitFile and hook it up to dwo output. Part of PR37466. Differential Revision: https://reviews.llvm.org/D47089 llvm-svn: 332881
2018-05-22 04:16:41 +08:00
; DWO-5: .debug_info.dwo contents:
; DWO-5: 0x00000000: Type Unit: {{.*}} version = 0x0005 unit_type = DW_UT_split_type abbr_offset
; DWO-5: 0x00000018: DW_TAG_type_unit
[DWARFv5] Emit split type units in .debug_info.dwo. Differential Revision: https://reviews.llvm.org/D54350 llvm-svn: 346674
2018-11-13 00:55:11 +08:00
; DWO-5: 0x00000033: Compile Unit: {{.*}} version = 0x0005 unit_type = DW_UT_split_compile abbr_offset
; DWO-5-SAME: DWO_id = 0xccd7e58ef8bf4aa6
; DWO-5: 0x00000047: DW_TAG_compile_unit
[DWARFv5] Emit new unit header format. Requesting DWARF v5 will now get you the new compile-unit and type-unit headers. llvm-dwarfdump will also recognize them. Differential Revision: http://reviews.llvm.org/D30206 llvm-svn: 296514
2017-03-01 04:24:55 +08:00
; ModuleID = 't.cpp'
source_filename = "t.cpp"
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"
%struct.S = type { i32 }
@s = global %struct.S zeroinitializer, align 4, !dbg !0
!llvm.dbg.cu = !{!2}
!llvm.module.flags = !{!10, !11}
!llvm.ident = !{!12}
Canonicalize the representation of empty an expression in DIGlobalVariableExpression This change simplifies code that has to deal with DIGlobalVariableExpression and mirrors how we treat DIExpressions in debug info intrinsics. Before this change there were two ways of representing empty expressions on globals, a nullptr and an empty !DIExpression(). If someone needs to upgrade out-of-tree testcases: perl -pi -e 's/(!DIGlobalVariableExpression\(var: ![0-9]*)\)/\1, expr: !DIExpression())/g' <MYTEST.ll> will catch 95%. llvm-svn: 312144
2017-08-31 02:06:51 +08:00
!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression())
[DWARFv5] Emit new unit header format. Requesting DWARF v5 will now get you the new compile-unit and type-unit headers. llvm-dwarfdump will also recognize them. Differential Revision: http://reviews.llvm.org/D30206 llvm-svn: 296514
2017-03-01 04:24:55 +08:00
!1 = distinct !DIGlobalVariable(name: "s", scope: !2, file: !3, line: 5, type: !6, isLocal: false, isDefinition: true)
!2 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !3, producer: "clang version 5.0.0 (trunk 295942)", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, globals: !5)
!3 = !DIFile(filename: "t.cpp", directory: "/home/probinson/projects/scratch")
!4 = !{}
!5 = !{!0}
!6 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "S", file: !3, line: 1, size: 32, elements: !7, identifier: "_ZTS1S")
!7 = !{!8}
!8 = !DIDerivedType(tag: DW_TAG_member, name: "s1", scope: !6, file: !3, line: 2, baseType: !9, size: 32)
!9 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
!10 = !{i32 2, !"Dwarf Version", i32 4}
!11 = !{i32 2, !"Debug Info Version", i32 3}
!12 = !{!"clang version 5.0.0 (trunk 295942)"}