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Actually support DW_TAG_rvalue_reference_type that we were trying
to generate out of the front end. rdar://11479676 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157094 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -127,8 +127,8 @@ namespace llvm {
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StringRef Name = StringRef());
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/// createReferenceType - Create debugging information entry for a c++
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/// style reference.
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DIType createReferenceType(DIType RTy);
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/// style reference or rvalue reference type.
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DIType createReferenceType(unsigned Tag, DIType RTy);
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/// createTypedef - Create debugging information entry for a typedef.
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/// @param Ty Original type.
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@ -229,12 +229,13 @@ DIType DIBuilder::createPointerType(DIType PointeeTy, uint64_t SizeInBits,
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return DIType(MDNode::get(VMContext, Elts));
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}
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/// createReferenceType - Create debugging information entry for a reference.
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DIType DIBuilder::createReferenceType(DIType RTy) {
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/// createReferenceType - Create debugging information entry for a reference
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/// type.
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DIType DIBuilder::createReferenceType(unsigned Tag, DIType RTy) {
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assert(RTy.Verify() && "Unable to create reference type");
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// References are encoded in DIDerivedType format.
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Value *Elts[] = {
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GetTagConstant(VMContext, dwarf::DW_TAG_reference_type),
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GetTagConstant(VMContext, Tag),
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NULL, // TheCU,
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NULL, // Name
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NULL, // Filename
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@ -150,6 +150,7 @@ bool DIDescriptor::isDerivedType() const {
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case dwarf::DW_TAG_typedef:
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case dwarf::DW_TAG_pointer_type:
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case dwarf::DW_TAG_reference_type:
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case dwarf::DW_TAG_rvalue_reference_type:
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case dwarf::DW_TAG_const_type:
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case dwarf::DW_TAG_volatile_type:
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case dwarf::DW_TAG_restrict_type:
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@ -399,11 +400,13 @@ bool DIType::Verify() const {
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unsigned Tag = getTag();
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if (!isBasicType() && Tag != dwarf::DW_TAG_const_type &&
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Tag != dwarf::DW_TAG_volatile_type && Tag != dwarf::DW_TAG_pointer_type &&
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Tag != dwarf::DW_TAG_reference_type && Tag != dwarf::DW_TAG_restrict_type
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&& Tag != dwarf::DW_TAG_vector_type && Tag != dwarf::DW_TAG_array_type
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&& Tag != dwarf::DW_TAG_enumeration_type
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&& Tag != dwarf::DW_TAG_subroutine_type
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&& getFilename().empty())
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Tag != dwarf::DW_TAG_reference_type &&
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Tag != dwarf::DW_TAG_rvalue_reference_type &&
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Tag != dwarf::DW_TAG_restrict_type && Tag != dwarf::DW_TAG_vector_type &&
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Tag != dwarf::DW_TAG_array_type &&
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Tag != dwarf::DW_TAG_enumeration_type &&
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Tag != dwarf::DW_TAG_subroutine_type &&
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getFilename().empty())
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return false;
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return true;
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}
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@ -512,7 +515,8 @@ uint64_t DIDerivedType::getOriginalTypeSize() const {
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// it's a reference then it's just the size of the field. Pointer types
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// have no need of this since they're a different type of qualification
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// on the type.
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if (BaseType.getTag() == dwarf::DW_TAG_reference_type)
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if (BaseType.getTag() == dwarf::DW_TAG_reference_type ||
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BaseType.getTag() == dwarf::DW_TAG_rvalue_reference_type)
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return getSizeInBits();
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else if (BaseType.isDerivedType())
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return DIDerivedType(BaseType).getOriginalTypeSize();
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40
test/DebugInfo/X86/rvalue-ref.ll
Normal file
40
test/DebugInfo/X86/rvalue-ref.ll
Normal file
@ -0,0 +1,40 @@
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; RUN: llc -mtriple=x86_64-apple-darwin %s -o %t -filetype=obj -O0
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; RUN: llvm-dwarfdump %t | FileCheck %s
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; CHECK: DW_TAG_rvalue_reference_type
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@.str = private unnamed_addr constant [4 x i8] c"%d\0A\00", align 1
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define void @_Z3fooOi(i32* %i) uwtable ssp {
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entry:
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%i.addr = alloca i32*, align 8
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store i32* %i, i32** %i.addr, align 8
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call void @llvm.dbg.declare(metadata !{i32** %i.addr}, metadata !11), !dbg !12
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%0 = load i32** %i.addr, align 8, !dbg !13
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%1 = load i32* %0, align 4, !dbg !13
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%call = call i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([4 x i8]* @.str, i32 0, i32 0), i32 %1), !dbg !13
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ret void, !dbg !15
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}
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declare void @llvm.dbg.declare(metadata, metadata) nounwind readnone
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declare i32 @printf(i8*, ...)
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!llvm.dbg.cu = !{!0}
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!0 = metadata !{i32 786449, i32 0, i32 4, metadata !"foo.cpp", metadata !"/Users/echristo/tmp", metadata !"clang version 3.2 (trunk 157054) (llvm/trunk 157060)", i1 true, i1 false, metadata !"", i32 0, metadata !1, metadata !1, metadata !3, metadata !1} ; [ DW_TAG_compile_unit ]
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!1 = metadata !{metadata !2}
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!2 = metadata !{i32 0}
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!3 = metadata !{metadata !4}
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!4 = metadata !{metadata !5}
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!5 = metadata !{i32 786478, i32 0, metadata !6, metadata !"foo", metadata !"foo", metadata !"_Z3fooOi", metadata !6, i32 4, metadata !7, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 false, void (i32*)* @_Z3fooOi, null, null, metadata !1, i32 5} ; [ DW_TAG_subprogram ]
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!6 = metadata !{i32 786473, metadata !"foo.cpp", metadata !"/Users/echristo/tmp", null} ; [ DW_TAG_file_type ]
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!7 = metadata !{i32 786453, i32 0, metadata !"", i32 0, i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !8, i32 0, i32 0} ; [ DW_TAG_subroutine_type ]
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!8 = metadata !{null, metadata !9}
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!9 = metadata !{i32 786498, null, null, null, i32 0, i64 0, i64 0, i64 0, i32 0, metadata !10} ; [ DW_TAG_rvalue_reference_type ]
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!10 = metadata !{i32 786468, null, metadata !"int", null, i32 0, i64 32, i64 32, i64 0, i32 0, i32 5} ; [ DW_TAG_base_type ]
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!11 = metadata !{i32 786689, metadata !5, metadata !"i", metadata !6, i32 16777220, metadata !9, i32 0, i32 0} ; [ DW_TAG_arg_variable ]
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!12 = metadata !{i32 4, i32 17, metadata !5, null}
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!13 = metadata !{i32 6, i32 3, metadata !14, null}
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!14 = metadata !{i32 786443, metadata !5, i32 5, i32 1, metadata !6, i32 0} ; [ DW_TAG_lexical_block ]
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!15 = metadata !{i32 7, i32 1, metadata !14, null}
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