diff options
Diffstat (limited to 'test/DebugInfo/X86/split-dwarf-cross-unit-reference.ll')
-rw-r--r-- | test/DebugInfo/X86/split-dwarf-cross-unit-reference.ll | 198 |
1 files changed, 173 insertions, 25 deletions
diff --git a/test/DebugInfo/X86/split-dwarf-cross-unit-reference.ll b/test/DebugInfo/X86/split-dwarf-cross-unit-reference.ll index c6f0afa27937..ca8525cd335b 100644 --- a/test/DebugInfo/X86/split-dwarf-cross-unit-reference.ll +++ b/test/DebugInfo/X86/split-dwarf-cross-unit-reference.ll @@ -1,46 +1,194 @@ -; RUN: llc -mtriple=x86_64-linux -split-dwarf-file=foo.dwo -filetype=obj -o - < %s | llvm-objdump -r - | FileCheck %s +; RUN: llc -mtriple=x86_64-linux -split-dwarf-cross-cu-references -split-dwarf-file=foo.dwo -filetype=obj -o %t < %s +; RUN: llvm-objdump -r %t | FileCheck %s +; RUN: llvm-dwarfdump -debug-dump=info.dwo %t | FileCheck --check-prefix=ALL --check-prefix=INFO --check-prefix=DWO --check-prefix=CROSS %s +; RUN: llvm-dwarfdump -debug-dump=info %t | FileCheck --check-prefix=ALL --check-prefix=INFO %s + +; RUN: llc -mtriple=x86_64-linux -split-dwarf-file=foo.dwo -filetype=obj -o %t < %s +; RUN: llvm-objdump -r %t | FileCheck %s +; RUN: llvm-dwarfdump -debug-dump=info.dwo %t | FileCheck --check-prefix=ALL --check-prefix=DWO --check-prefix=NOCROSS %s +; RUN: llvm-dwarfdump -debug-dump=info %t | FileCheck --check-prefix=ALL --check-prefix=INFO %s + +; Testing cross-CU references for types, subprograms, and variables +; Built from code something like this: +; foo.cpp: +; struct t1 { int i; }; +; void f(); +; __attribute__((always_inline)) void f1(t1 t) { +; f(); +; } +; void foo(t1 t) { +; f1(t); +; } +; bar.cpp: +; struct t1 { int i; }; +; void f1(t1); +; void bar(t1 t) { +; f1(t); +; } +; $ clang++-tot -emit-llvm -S {foo,bar}.cpp -g +; $ llvm-link-tot {foo,bar}.ll -S -o foobar.ll +; $ clang++-tot -emit-llvm foobar.ll -o foobar.opt.ll -S -c +; +; Then manually removing the original f1 definition, to simplify the DWARF a bit +; (so it only has the inlined definitions, no concrete definition) + +; Check that: +; * no relocations are emitted for the debug_info.dwo section no matter what +; * one debug_info->debug_info relocation in debug_info no matter what (for +; split dwarf inlining) +; * debug_info uses relocations and ref_addr no matter what +; * debug_info.dwo uses relocations for types as well as abstract subprograms +; and variables when -split-dwarf-cross-cu-references is used +; * debug_info.dwo contains duplicate types, abstract subprograms and abstract +; variables otherwise to avoid the need for cross-cu references ; CHECK-NOT: .rel{{a?}}.debug_info.dwo ; CHECK: RELOCATION RECORDS FOR [.rel{{a?}}.debug_info]: ; CHECK-NOT: RELOCATION RECORDS -; Expect one relocation in debug_info, between f3 and f1. +; Expect one relocation in debug_info, from the inlined f1 in foo to its +; abstract origin in bar ; CHECK: R_X86_64_32 .debug_info +; CHECK-NOT: RELOCATION RECORDS ; CHECK-NOT: .debug_info ; CHECK: RELOCATION RECORDS ; CHECK-NOT: .rel{{a?}}.debug_info.dwo +; ALL: Compile Unit +; ALL: DW_TAG_compile_unit +; DWO: DW_AT_name {{.*}} "foo.cpp" +; ALL: 0x[[F1:.*]]: DW_TAG_subprogram +; ALL: DW_AT_name {{.*}} "f1" +; DWO: 0x[[F1T:.*]]: DW_TAG_formal_parameter +; DWO: DW_AT_name {{.*}} "t" +; DWO: DW_AT_type [DW_FORM_ref4] {{.*}}{0x[[T1:.*]]} +; DWO: NULL +; DWO: 0x[[T1]]: DW_TAG_structure_type +; DWO: DW_AT_name {{.*}} "t1" +; ALL: DW_TAG_subprogram +; ALL: DW_AT_name {{.*}} "foo" +; DWO: DW_TAG_formal_parameter +; DWO: DW_AT_name {{.*}} "t" +; DWO: DW_AT_type [DW_FORM_ref4] {{.*}}{0x[[T1]]} +; ALL: DW_TAG_inlined_subroutine +; ALL: DW_AT_abstract_origin [DW_FORM_ref4] {{.*}}{0x[[F1]]} +; DWO: DW_TAG_formal_parameter +; DWO: DW_AT_abstract_origin [DW_FORM_ref4] {{.*}}{0x[[F1T]]} + +; ALL: Compile Unit +; ALL: DW_TAG_compile_unit +; DWO: DW_AT_name {{.*}} "bar.cpp" +; NOCROSS: 0x[[BAR_F1:.*]]: DW_TAG_subprogram +; NOCROSS: DW_AT_name {{.*}} "f1" +; NOCROSS: 0x[[BAR_F1T:.*]]: DW_TAG_formal_parameter +; NOCROSS: DW_AT_name {{.*}} "t" +; NOCROSS: DW_AT_type [DW_FORM_ref4] {{.*}}{0x[[BAR_T1:.*]]} +; NOCROSS: NULL +; NOCROSS: 0x[[BAR_T1]]: DW_TAG_structure_type +; NOCROSS: DW_AT_name {{.*}} "t1" +; ALL: DW_TAG_subprogram +; ALL: DW_AT_name {{.*}} "bar" +; DWO: DW_TAG_formal_parameter +; DWO: DW_AT_name {{.*}} "t" +; CROSS: DW_AT_type [DW_FORM_ref_addr] (0x00000000[[T1]] +; NOCROSS: DW_AT_type [DW_FORM_ref4] {{.*}}{0x[[BAR_T1]]} +; ALL: DW_TAG_inlined_subroutine +; INFO: DW_AT_abstract_origin [DW_FORM_ref_addr] (0x00000000[[F1]] +; NOCROSS: DW_AT_abstract_origin [DW_FORM_ref4] {{.*}}{0x[[BAR_F1]]} +; DWO: DW_TAG_formal_parameter +; CROSS: DW_AT_abstract_origin [DW_FORM_ref_addr] (0x00000000[[F1T]] +; NOCROSS: DW_AT_abstract_origin [DW_FORM_ref4] {{.*}}{0x[[BAR_F1T]] -; Function Attrs: noinline nounwind optnone uwtable -define void @_Z2f1v() !dbg !7 { +%struct.t1 = type { i32 } + +; Function Attrs: nounwind readnone speculatable +declare void @llvm.dbg.declare(metadata, metadata, metadata) #1 + +declare void @_Z1fv() #2 + +; Function Attrs: noinline uwtable +define void @_Z3foo2t1(i32 %t.coerce) #3 !dbg !20 { entry: - ret void, !dbg !10 + %t.i = alloca %struct.t1, align 4 + call void @llvm.dbg.declare(metadata %struct.t1* %t.i, metadata !15, metadata !16), !dbg !21 + %t = alloca %struct.t1, align 4 + %agg.tmp = alloca %struct.t1, align 4 + %coerce.dive = getelementptr inbounds %struct.t1, %struct.t1* %t, i32 0, i32 0 + store i32 %t.coerce, i32* %coerce.dive, align 4 + call void @llvm.dbg.declare(metadata %struct.t1* %t, metadata !23, metadata !16), !dbg !24 + %0 = bitcast %struct.t1* %agg.tmp to i8*, !dbg !25 + %1 = bitcast %struct.t1* %t to i8*, !dbg !25 + call void @llvm.memcpy.p0i8.p0i8.i64(i8* %0, i8* %1, i64 4, i32 4, i1 false), !dbg !25 + %coerce.dive1 = getelementptr inbounds %struct.t1, %struct.t1* %agg.tmp, i32 0, i32 0, !dbg !26 + %2 = load i32, i32* %coerce.dive1, align 4, !dbg !26 + %coerce.dive.i = getelementptr inbounds %struct.t1, %struct.t1* %t.i, i32 0, i32 0 + store i32 %2, i32* %coerce.dive.i, align 4 + call void @_Z1fv(), !dbg !27 + ret void, !dbg !28 } +; Function Attrs: argmemonly nounwind +declare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture writeonly, i8* nocapture readonly, i64, i32, i1) #4 + ; Function Attrs: noinline uwtable -define void @_Z2f3v() !dbg !13 { +define void @_Z3bar2t1(i32 %t.coerce) #3 !dbg !29 { entry: - call void @_Z2f1v(), !dbg !14 - ret void, !dbg !16 + %t.i = alloca %struct.t1, align 4 + call void @llvm.dbg.declare(metadata %struct.t1* %t.i, metadata !15, metadata !16), !dbg !30 + %t = alloca %struct.t1, align 4 + %agg.tmp = alloca %struct.t1, align 4 + %coerce.dive = getelementptr inbounds %struct.t1, %struct.t1* %t, i32 0, i32 0 + store i32 %t.coerce, i32* %coerce.dive, align 4 + call void @llvm.dbg.declare(metadata %struct.t1* %t, metadata !32, metadata !16), !dbg !33 + %0 = bitcast %struct.t1* %agg.tmp to i8*, !dbg !34 + %1 = bitcast %struct.t1* %t to i8*, !dbg !34 + call void @llvm.memcpy.p0i8.p0i8.i64(i8* %0, i8* %1, i64 4, i32 4, i1 false), !dbg !34 + %coerce.dive1 = getelementptr inbounds %struct.t1, %struct.t1* %agg.tmp, i32 0, i32 0, !dbg !35 + %2 = load i32, i32* %coerce.dive1, align 4, !dbg !35 + %coerce.dive.i = getelementptr inbounds %struct.t1, %struct.t1* %t.i, i32 0, i32 0 + store i32 %2, i32* %coerce.dive.i, align 4 + call void @_Z1fv(), !dbg !36 + ret void, !dbg !37 } !llvm.dbg.cu = !{!0, !3} !llvm.ident = !{!5, !5} -!llvm.module.flags = !{!6} +!llvm.module.flags = !{!6, !7} -!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "clang version 5.0.0 (trunk 301051) (llvm/trunk 301062)", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2) -!1 = !DIFile(filename: "a.cpp", directory: "/usr/local/google/home/blaikie/dev/scratch") +!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "clang version 5.0.0 (trunk 302809) (llvm/trunk 302815)", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, splitDebugInlining: true) +!1 = !DIFile(filename: "foo.cpp", directory: "/usr/local/google/home/blaikie/dev/scratch") !2 = !{} -!3 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !4, producer: "clang version 5.0.0 (trunk 301051) (llvm/trunk 301062)", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2) -!4 = !DIFile(filename: "b.cpp", directory: "/usr/local/google/home/blaikie/dev/scratch") -!5 = !{!"clang version 5.0.0 (trunk 301051) (llvm/trunk 301062)"} -!6 = !{i32 2, !"Debug Info Version", i32 3} -!7 = distinct !DISubprogram(name: "f1", linkageName: "_Z2f1v", scope: !1, file: !1, line: 1, type: !8, isLocal: false, isDefinition: true, scopeLine: 1, flags: DIFlagPrototyped, isOptimized: false, unit: !0, variables: !2) -!8 = !DISubroutineType(types: !9) -!9 = !{null} -!10 = !DILocation(line: 1, scope: !7) -!11 = distinct !DISubprogram(name: "f2", linkageName: "_Z2f2v", scope: !1, file: !1, line: 1, type: !8, isLocal: false, isDefinition: true, scopeLine: 1, flags: DIFlagPrototyped, isOptimized: false, unit: !0, variables: !2) -!12 = !DILocation(line: 1, scope: !11) -!13 = distinct !DISubprogram(name: "f3", linkageName: "_Z2f3v", scope: !4, file: !4, line: 1, type: !8, isLocal: false, isDefinition: true, scopeLine: 1, flags: DIFlagPrototyped, isOptimized: false, unit: !3, variables: !2) -!14 = !DILocation(line: 1, scope: !11, inlinedAt: !15) -!15 = distinct !DILocation(line: 1, scope: !13) -!16 = !DILocation(line: 1, scope: !13) +!3 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !4, producer: "clang version 5.0.0 (trunk 302809) (llvm/trunk 302815)", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, splitDebugInlining: true) +!4 = !DIFile(filename: "bar.cpp", directory: "/usr/local/google/home/blaikie/dev/scratch") +!5 = !{!"clang version 5.0.0 (trunk 302809) (llvm/trunk 302815)"} +!6 = !{i32 2, !"Dwarf Version", i32 4} +!7 = !{i32 2, !"Debug Info Version", i32 3} +!8 = distinct !DISubprogram(name: "f1", linkageName: "_Z2f12t1", scope: !1, file: !1, line: 3, type: !9, isLocal: false, isDefinition: true, scopeLine: 3, flags: DIFlagPrototyped, isOptimized: false, unit: !0, variables: !2) +!9 = !DISubroutineType(types: !10) +!10 = !{null, !11} +!11 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "t1", file: !1, line: 1, size: 32, elements: !12, identifier: "_ZTS2t1") +!12 = !{!13} +!13 = !DIDerivedType(tag: DW_TAG_member, name: "i", scope: !11, file: !1, line: 1, baseType: !14, size: 32) +!14 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) +!15 = !DILocalVariable(name: "t", arg: 1, scope: !8, file: !1, line: 3, type: !11) +!16 = !DIExpression() +!17 = !DILocation(line: 3, column: 43, scope: !8) +!18 = !DILocation(line: 4, column: 3, scope: !8) +!19 = !DILocation(line: 5, column: 1, scope: !8) +!20 = distinct !DISubprogram(name: "foo", linkageName: "_Z3foo2t1", scope: !1, file: !1, line: 6, type: !9, isLocal: false, isDefinition: true, scopeLine: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !0, variables: !2) +!21 = !DILocation(line: 3, column: 43, scope: !8, inlinedAt: !22) +!22 = distinct !DILocation(line: 7, column: 3, scope: !20) +!23 = !DILocalVariable(name: "t", arg: 1, scope: !20, file: !1, line: 6, type: !11) +!24 = !DILocation(line: 6, column: 13, scope: !20) +!25 = !DILocation(line: 7, column: 6, scope: !20) +!26 = !DILocation(line: 7, column: 3, scope: !20) +!27 = !DILocation(line: 4, column: 3, scope: !8, inlinedAt: !22) +!28 = !DILocation(line: 8, column: 1, scope: !20) +!29 = distinct !DISubprogram(name: "bar", linkageName: "_Z3bar2t1", scope: !4, file: !4, line: 3, type: !9, isLocal: false, isDefinition: true, scopeLine: 3, flags: DIFlagPrototyped, isOptimized: false, unit: !3, variables: !2) +!30 = !DILocation(line: 3, column: 43, scope: !8, inlinedAt: !31) +!31 = distinct !DILocation(line: 4, column: 3, scope: !29) +!32 = !DILocalVariable(name: "t", arg: 1, scope: !29, file: !4, line: 3, type: !11) +!33 = !DILocation(line: 3, column: 13, scope: !29) +!34 = !DILocation(line: 4, column: 6, scope: !29) +!35 = !DILocation(line: 4, column: 3, scope: !29) +!36 = !DILocation(line: 4, column: 3, scope: !8, inlinedAt: !31) +!37 = !DILocation(line: 5, column: 1, scope: !29) |