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