diff options
Diffstat (limited to 'llvm/test/CodeGen/X86/dwarf-headers.ll')
| -rw-r--r-- | llvm/test/CodeGen/X86/dwarf-headers.ll | 109 |
1 files changed, 109 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/X86/dwarf-headers.ll b/llvm/test/CodeGen/X86/dwarf-headers.ll new file mode 100644 index 00000000000..612807dd812 --- /dev/null +++ b/llvm/test/CodeGen/X86/dwarf-headers.ll @@ -0,0 +1,109 @@ +; RUN: llc -split-dwarf=Disable -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=Enable -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 -split-dwarf=Disable -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=Enable -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)"} |
