96b1ed50e8
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
110 lines
4.4 KiB
LLVM
110 lines
4.4 KiB
LLVM
; RUN: llc -dwarf-version=4 -generate-type-units \
|
|
; RUN: -filetype=obj -O0 -mtriple=x86_64-unknown-linux-gnu < %s \
|
|
; RUN: | llvm-dwarfdump - | FileCheck %s --check-prefix=SINGLE-4
|
|
|
|
; RUN: llc -split-dwarf-file=foo.dwo -dwarf-version=4 -generate-type-units \
|
|
; RUN: -filetype=obj -O0 -mtriple=x86_64-unknown-linux-gnu < %s \
|
|
; RUN: | llvm-dwarfdump - | FileCheck %s --check-prefix=SPLIT-4
|
|
|
|
; RUN: llc -dwarf-version=5 -generate-type-units \
|
|
; RUN: -filetype=obj -O0 -mtriple=x86_64-unknown-linux-gnu < %s \
|
|
; RUN: | llvm-dwarfdump - | FileCheck %s --check-prefix=SINGLE-5
|
|
|
|
; RUN: llc -split-dwarf-file=foo.dwo -dwarf-version=5 -generate-type-units \
|
|
; RUN: -filetype=obj -O0 -mtriple=x86_64-unknown-linux-gnu < %s \
|
|
; RUN: | llvm-dwarfdump - | FileCheck %s --check-prefix=SPLIT-5
|
|
|
|
; Looking for DWARF headers to be generated correctly.
|
|
; There are 7 variants: v4 CU, v4 TU, v5 (normal/skeleton/split) CU,
|
|
; v5 (normal/split) TU. The v5 CU variants and TU variants differ
|
|
; only in the type-unit code.
|
|
; (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.
|
|
;
|
|
; SPLIT-4: .debug_info contents:
|
|
; SPLIT-4: 0x00000000: Compile Unit: {{.*}} version = 0x0004 abbr_offset
|
|
; SPLIT-4: 0x0000000b: DW_TAG_compile_unit
|
|
;
|
|
; SPLIT-4: .debug_info.dwo contents:
|
|
; SPLIT-4: 0x00000000: Compile Unit: {{.*}} version = 0x0004 abbr_offset
|
|
; SPLIT-4: 0x0000000b: DW_TAG_compile_unit
|
|
;
|
|
; SPLIT-4: .debug_types.dwo contents:
|
|
; SPLIT-4: 0x00000000: Type Unit: {{.*}} version = 0x0004 abbr_offset
|
|
; SPLIT-4: 0x00000017: DW_TAG_type_unit
|
|
|
|
; Verify the v5 non-split headers.
|
|
;
|
|
; SINGLE-5: .debug_info contents:
|
|
; SINGLE-5: 0x00000000: Compile Unit: {{.*}} version = 0x0005 unit_type = DW_UT_compile abbr_offset
|
|
; SINGLE-5: 0x0000000c: DW_TAG_compile_unit
|
|
;
|
|
; FIXME: V5 wants type units in .debug_info not .debug_types.
|
|
; SINGLE-5: .debug_types contents:
|
|
; SINGLE-5: 0x00000000: Type Unit: {{.*}} version = 0x0005 unit_type = DW_UT_type abbr_offset
|
|
; SINGLE-5: 0x00000018: DW_TAG_type_unit
|
|
|
|
; Verify the v5 split headers.
|
|
;
|
|
; SPLIT-5: .debug_info contents:
|
|
; SPLIT-5: 0x00000000: Compile Unit: {{.*}} version = 0x0005 unit_type = DW_UT_skeleton abbr_offset
|
|
; SPLIT-5: 0x0000000c: DW_TAG_compile_unit
|
|
;
|
|
; SPLIT-5: .debug_info.dwo contents:
|
|
; SPLIT-5: 0x00000000: Compile Unit: {{.*}} version = 0x0005 unit_type = DW_UT_split_compile abbr_offset
|
|
; SPLIT-5: 0x0000000c: DW_TAG_compile_unit
|
|
;
|
|
; FIXME: V5 wants type units in .debug_info.dwo not .debug_types.dwo.
|
|
; SPLIT-5: .debug_types.dwo contents:
|
|
; SPLIT-5: 0x00000000: Type Unit: {{.*}} version = 0x0005 unit_type = DW_UT_split_type abbr_offset
|
|
; SPLIT-5: 0x00000018: DW_TAG_type_unit
|
|
|
|
|
|
; 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}
|
|
|
|
!0 = !DIGlobalVariableExpression(var: !1)
|
|
!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)"}
|