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llvm-6502/test/DebugInfo/inheritance.ll
Duncan P. N. Exon Smith b056aa798d DebugInfo: Move new hierarchy into place 
Move the specialized metadata nodes for the new debug info hierarchy
into place, finishing off PR22464.  I've done bootstraps (and all that)
and I'm confident this commit is NFC as far as DWARF output is
concerned.  Let me know if I'm wrong :).

The code changes are fairly mechanical:

  - Bumped the "Debug Info Version".
  - `DIBuilder` now creates the appropriate subclass of `MDNode`.
  - Subclasses of DIDescriptor now expect to hold their "MD"
    counterparts (e.g., `DIBasicType` expects `MDBasicType`).
  - Deleted a ton of dead code in `AsmWriter.cpp` and `DebugInfo.cpp`
    for printing comments.
  - Big update to LangRef to describe the nodes in the new hierarchy.
    Feel free to make it better.

Testcase changes are enormous.  There's an accompanying clang commit on
its way.

If you have out-of-tree debug info testcases, I just broke your build.

  - `upgrade-specialized-nodes.sh` is attached to PR22564.  I used it to
    update all the IR testcases.
  - Unfortunately I failed to find way to script the updates to CHECK
    lines, so I updated all of these by hand.  This was fairly painful,
    since the old CHECKs are difficult to reason about.  That's one of
    the benefits of the new hierarchy.

This work isn't quite finished, BTW.  The `DIDescriptor` subclasses are
almost empty wrappers, but not quite: they still have loose casting
checks (see the `RETURN_FROM_RAW()` macro).  Once they're completely
gutted, I'll rename the "MD" classes to "DI" and kill the wrappers.  I
also expect to make a few schema changes now that it's easier to reason
about everything.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231082 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-03 17:24:31 +00:00

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; RUN: llc %s -o /dev/null
; PR 2613.
%struct.__class_type_info_pseudo = type { %struct.__type_info_pseudo }
%struct.__type_info_pseudo = type { i8*, i8* }
%struct.test1 = type { i32 (...)** }
@_ZTV5test1 = weak_odr constant [4 x i32 (...)*] [i32 (...)* null, i32 (...)* bitcast (%struct.__class_type_info_pseudo* @_ZTI5test1 to i32 (...)*), i32 (...)* bitcast (void (%struct.test1*)* @_ZN5test1D1Ev to i32 (...)*), i32 (...)* bitcast (void (%struct.test1*)* @_ZN5test1D0Ev to i32 (...)*)], align 32 ; <[4 x i32 (...)*]*> [#uses=1]
@_ZTI5test1 = weak_odr constant %struct.__class_type_info_pseudo { %struct.__type_info_pseudo { i8* inttoptr (i64 add (i64 ptrtoint ([0 x i32 (...)*]* @_ZTVN10__cxxabiv117__class_type_infoE to i64), i64 16) to i8*), i8* getelementptr inbounds ([7 x i8]* @_ZTS5test1, i64 0, i64 0) } }, align 16 ; <%struct.__class_type_info_pseudo*> [#uses=1]
@_ZTVN10__cxxabiv117__class_type_infoE = external constant [0 x i32 (...)*] ; <[0 x i32 (...)*]*> [#uses=1]
@_ZTS5test1 = weak_odr constant [7 x i8] c"5test1\00" ; <[7 x i8]*> [#uses=2]
define i32 @main() nounwind ssp {
entry:
%retval = alloca i32 ; <i32*> [#uses=2]
%0 = alloca i32 ; <i32*> [#uses=2]
%tst = alloca %struct.test1 ; <%struct.test1*> [#uses=1]
%"alloca point" = bitcast i32 0 to i32 ; <i32> [#uses=0]
call void @llvm.dbg.declare(metadata %struct.test1* %tst, metadata !0, metadata !MDExpression()), !dbg !21
call void @_ZN5test1C1Ev(%struct.test1* %tst) nounwind, !dbg !22
store i32 0, i32* %0, align 4, !dbg !23
%1 = load i32, i32* %0, align 4, !dbg !23 ; <i32> [#uses=1]
store i32 %1, i32* %retval, align 4, !dbg !23
br label %return, !dbg !23
return: ; preds = %entry
%retval1 = load i32, i32* %retval, !dbg !23 ; <i32> [#uses=1]
ret i32 %retval1, !dbg !23
}
define linkonce_odr void @_ZN5test1C1Ev(%struct.test1* %this) nounwind ssp align 2 {
entry:
%this_addr = alloca %struct.test1* ; <%struct.test1**> [#uses=2]
%"alloca point" = bitcast i32 0 to i32 ; <i32> [#uses=0]
call void @llvm.dbg.declare(metadata %struct.test1** %this_addr, metadata !24, metadata !MDExpression()), !dbg !28
store %struct.test1* %this, %struct.test1** %this_addr
%0 = load %struct.test1*, %struct.test1** %this_addr, align 8, !dbg !28 ; <%struct.test1*> [#uses=1]
%1 = getelementptr inbounds %struct.test1, %struct.test1* %0, i32 0, i32 0, !dbg !28 ; <i32 (...)***> [#uses=1]
store i32 (...)** getelementptr inbounds ([4 x i32 (...)*]* @_ZTV5test1, i64 0, i64 2), i32 (...)*** %1, align 8, !dbg !28
br label %return, !dbg !28
return: ; preds = %entry
ret void, !dbg !29
}
declare void @llvm.dbg.declare(metadata, metadata, metadata) nounwind readnone
define linkonce_odr void @_ZN5test1D1Ev(%struct.test1* %this) nounwind ssp align 2 {
entry:
%this_addr = alloca %struct.test1* ; <%struct.test1**> [#uses=3]
%"alloca point" = bitcast i32 0 to i32 ; <i32> [#uses=0]
call void @llvm.dbg.declare(metadata %struct.test1** %this_addr, metadata !32, metadata !MDExpression()), !dbg !34
store %struct.test1* %this, %struct.test1** %this_addr
%0 = load %struct.test1*, %struct.test1** %this_addr, align 8, !dbg !35 ; <%struct.test1*> [#uses=1]
%1 = getelementptr inbounds %struct.test1, %struct.test1* %0, i32 0, i32 0, !dbg !35 ; <i32 (...)***> [#uses=1]
store i32 (...)** getelementptr inbounds ([4 x i32 (...)*]* @_ZTV5test1, i64 0, i64 2), i32 (...)*** %1, align 8, !dbg !35
br label %bb, !dbg !37
bb: ; preds = %entry
%2 = trunc i32 0 to i8, !dbg !37 ; <i8> [#uses=1]
%toBool = icmp ne i8 %2, 0, !dbg !37 ; <i1> [#uses=1]
br i1 %toBool, label %bb1, label %bb2, !dbg !37
bb1: ; preds = %bb
%3 = load %struct.test1*, %struct.test1** %this_addr, align 8, !dbg !37 ; <%struct.test1*> [#uses=1]
%4 = bitcast %struct.test1* %3 to i8*, !dbg !37 ; <i8*> [#uses=1]
call void @_ZdlPv(i8* %4) nounwind, !dbg !37
br label %bb2, !dbg !37
bb2: ; preds = %bb1, %bb
br label %return, !dbg !37
return: ; preds = %bb2
ret void, !dbg !37
}
define linkonce_odr void @_ZN5test1D0Ev(%struct.test1* %this) nounwind ssp align 2 {
entry:
%this_addr = alloca %struct.test1* ; <%struct.test1**> [#uses=3]
%"alloca point" = bitcast i32 0 to i32 ; <i32> [#uses=0]
call void @llvm.dbg.declare(metadata %struct.test1** %this_addr, metadata !38, metadata !MDExpression()), !dbg !40
store %struct.test1* %this, %struct.test1** %this_addr
%0 = load %struct.test1*, %struct.test1** %this_addr, align 8, !dbg !41 ; <%struct.test1*> [#uses=1]
%1 = getelementptr inbounds %struct.test1, %struct.test1* %0, i32 0, i32 0, !dbg !41 ; <i32 (...)***> [#uses=1]
store i32 (...)** getelementptr inbounds ([4 x i32 (...)*]* @_ZTV5test1, i64 0, i64 2), i32 (...)*** %1, align 8, !dbg !41
br label %bb, !dbg !43
bb: ; preds = %entry
%2 = trunc i32 1 to i8, !dbg !43 ; <i8> [#uses=1]
%toBool = icmp ne i8 %2, 0, !dbg !43 ; <i1> [#uses=1]
br i1 %toBool, label %bb1, label %bb2, !dbg !43
bb1: ; preds = %bb
%3 = load %struct.test1*, %struct.test1** %this_addr, align 8, !dbg !43 ; <%struct.test1*> [#uses=1]
%4 = bitcast %struct.test1* %3 to i8*, !dbg !43 ; <i8*> [#uses=1]
call void @_ZdlPv(i8* %4) nounwind, !dbg !43
br label %bb2, !dbg !43
bb2: ; preds = %bb1, %bb
br label %return, !dbg !43
return: ; preds = %bb2
ret void, !dbg !43
}
declare void @_ZdlPv(i8*) nounwind
!0 = !MDLocalVariable(tag: DW_TAG_auto_variable, name: "tst", line: 13, scope: !1, file: !4, type: !8)
!1 = distinct !MDLexicalBlock(line: 0, column: 0, file: !44, scope: !2)
!2 = distinct !MDLexicalBlock(line: 0, column: 0, file: !44, scope: !3)
!3 = !MDSubprogram(name: "main", linkageName: "main", line: 11, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, scope: !4, type: !5)
!4 = !MDCompileUnit(language: DW_LANG_C_plus_plus, producer: "4.2.1 (Based on Apple Inc. build 5658) (LLVM build)", isOptimized: true, emissionKind: 0, file: !44, enums: !45, retainedTypes: !45)
!5 = !MDSubroutineType(types: !6)
!6 = !{!7}
!7 = !MDBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
!8 = !MDCompositeType(tag: DW_TAG_structure_type, name: "test1", line: 1, size: 64, align: 64, file: !44, scope: !4, elements: !9, vtableHolder: !8)
!9 = !{!10, !14, !18}
!10 = !MDDerivedType(tag: DW_TAG_member, name: "_vptr$test1", line: 1, size: 64, align: 64, file: !44, scope: !8, baseType: !11)
!11 = !MDDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, file: !4, baseType: !12)
!12 = !MDDerivedType(tag: DW_TAG_pointer_type, name: "__vtbl_ptr_type", scope: !4, baseType: !5)
!13 = !MDCompileUnit(language: DW_LANG_C_plus_plus, producer: "4.2.1 (Based on Apple Inc. build 5658) (LLVM build)", isOptimized: false, emissionKind: 0, file: !46, enums: !45, retainedTypes: !45)
!14 = !MDSubprogram(name: "test1", line: 1, isLocal: false, isDefinition: false, virtualIndex: 6, flags: DIFlagPrivate, isOptimized: false, scope: !8, type: !15)
!15 = !MDSubroutineType(types: !16)
!16 = !{null, !17}
!17 = !MDDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, flags: DIFlagArtificial, file: !4, baseType: !8)
!18 = !MDSubprogram(name: "~test1", line: 4, isLocal: false, isDefinition: false, virtuality: DW_VIRTUALITY_virtual, virtualIndex: 6, isOptimized: false, scope: !8, type: !19, containingType: !8)
!19 = !MDSubroutineType(types: !20)
!20 = !{null, !17, !7}
!21 = !MDLocation(line: 11, scope: !1)
!22 = !MDLocation(line: 13, scope: !1)
!23 = !MDLocation(line: 14, scope: !1)
!24 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "this", line: 13, arg: 0, scope: !25, file: !4, type: !26)
!25 = !MDSubprogram(name: "test1", linkageName: "_ZN5test1C1Ev", line: 1, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, scope: !4, type: !15)
!26 = !MDDerivedType(tag: DW_TAG_const_type, size: 64, align: 64, flags: DIFlagArtificial, file: !4, baseType: !27)
!27 = !MDDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, file: !4, baseType: !8)
!28 = !MDLocation(line: 1, scope: !25)
!29 = !MDLocation(line: 1, scope: !30)
!30 = distinct !MDLexicalBlock(line: 0, column: 0, file: !44, scope: !31)
!31 = distinct !MDLexicalBlock(line: 0, column: 0, file: !44, scope: !25)
!32 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "this", line: 4, arg: 0, scope: !33, file: !4, type: !26)
!33 = !MDSubprogram(name: "~test1", linkageName: "_ZN5test1D1Ev", line: 4, isLocal: false, isDefinition: true, virtuality: DW_VIRTUALITY_virtual, virtualIndex: 6, isOptimized: false, scope: !8, type: !15, containingType: !8)
!34 = !MDLocation(line: 4, scope: !33)
!35 = !MDLocation(line: 5, scope: !36)
!36 = distinct !MDLexicalBlock(line: 0, column: 0, file: !44, scope: !33)
!37 = !MDLocation(line: 6, scope: !36)
!38 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "this", line: 4, arg: 0, scope: !39, file: !4, type: !26)
!39 = !MDSubprogram(name: "~test1", linkageName: "_ZN5test1D0Ev", line: 4, isLocal: false, isDefinition: true, virtuality: DW_VIRTUALITY_virtual, virtualIndex: 6, isOptimized: false, scope: !8, type: !15, containingType: !8)
!40 = !MDLocation(line: 4, scope: !39)
!41 = !MDLocation(line: 5, scope: !42)
!42 = distinct !MDLexicalBlock(line: 0, column: 0, file: !44, scope: !39)
!43 = !MDLocation(line: 6, scope: !42)
!44 = !MDFile(filename: "inheritance.cpp", directory: "/tmp/")
!45 = !{i32 0}
!46 = !MDFile(filename: "<built-in>", directory: "/tmp/")
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