mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-08-17 21:29:20 +00:00
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53001 91177308-0d34-0410-b5e6-96231b3b80d8
576 lines
17 KiB
C++
576 lines
17 KiB
C++
//===-- llvm/CodeGen/MachineDebugInfoDesc.cpp -------------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/CodeGen/MachineDebugInfoDesc.h"
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#include "llvm/CodeGen/MachineModuleInfo.h"
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#include "llvm/Constants.h"
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#include "llvm/GlobalVariable.h"
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#include "llvm/Support/Dwarf.h"
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#include "llvm/Support/Streams.h"
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using namespace llvm;
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using namespace llvm::dwarf;
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/// getUIntOperand - Return ith operand if it is an unsigned integer.
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///
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static ConstantInt *getUIntOperand(const GlobalVariable *GV, unsigned i) {
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// Make sure the GlobalVariable has an initializer.
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if (!GV->hasInitializer()) return NULL;
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// Get the initializer constant.
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ConstantStruct *CI = dyn_cast<ConstantStruct>(GV->getInitializer());
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if (!CI) return NULL;
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// Check if there is at least i + 1 operands.
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unsigned N = CI->getNumOperands();
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if (i >= N) return NULL;
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// Check constant.
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return dyn_cast<ConstantInt>(CI->getOperand(i));
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}
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//===----------------------------------------------------------------------===//
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/// Supply a home for the DebugInfoDesc's v-table.
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DebugInfoDesc::~DebugInfoDesc() {}
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/// TagFromGlobal - Returns the tag number from a debug info descriptor
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/// GlobalVariable. Return DIIValid if operand is not an unsigned int.
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unsigned DebugInfoDesc::TagFromGlobal(GlobalVariable *GV) {
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ConstantInt *C = getUIntOperand(GV, 0);
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return C ? ((unsigned)C->getZExtValue() & ~LLVMDebugVersionMask) :
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(unsigned)DW_TAG_invalid;
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}
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/// VersionFromGlobal - Returns the version number from a debug info
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/// descriptor GlobalVariable. Return DIIValid if operand is not an unsigned
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/// int.
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unsigned DebugInfoDesc::VersionFromGlobal(GlobalVariable *GV) {
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ConstantInt *C = getUIntOperand(GV, 0);
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return C ? ((unsigned)C->getZExtValue() & LLVMDebugVersionMask) :
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(unsigned)DW_TAG_invalid;
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}
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/// DescFactory - Create an instance of debug info descriptor based on Tag.
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/// Return NULL if not a recognized Tag.
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DebugInfoDesc *DebugInfoDesc::DescFactory(unsigned Tag) {
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switch (Tag) {
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case DW_TAG_anchor: return new AnchorDesc();
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case DW_TAG_compile_unit: return new CompileUnitDesc();
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case DW_TAG_variable: return new GlobalVariableDesc();
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case DW_TAG_subprogram: return new SubprogramDesc();
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case DW_TAG_lexical_block: return new BlockDesc();
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case DW_TAG_base_type: return new BasicTypeDesc();
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case DW_TAG_typedef:
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case DW_TAG_pointer_type:
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case DW_TAG_reference_type:
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case DW_TAG_const_type:
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case DW_TAG_volatile_type:
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case DW_TAG_restrict_type:
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case DW_TAG_member:
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case DW_TAG_inheritance: return new DerivedTypeDesc(Tag);
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case DW_TAG_array_type:
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case DW_TAG_structure_type:
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case DW_TAG_union_type:
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case DW_TAG_enumeration_type:
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case DW_TAG_vector_type:
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case DW_TAG_subroutine_type: return new CompositeTypeDesc(Tag);
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case DW_TAG_subrange_type: return new SubrangeDesc();
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case DW_TAG_enumerator: return new EnumeratorDesc();
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case DW_TAG_return_variable:
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case DW_TAG_arg_variable:
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case DW_TAG_auto_variable: return new VariableDesc(Tag);
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default: break;
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}
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return NULL;
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}
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/// getLinkage - get linkage appropriate for this type of descriptor.
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GlobalValue::LinkageTypes DebugInfoDesc::getLinkage() const {
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return GlobalValue::InternalLinkage;
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}
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/// ApplyToFields - Target the vistor to the fields of the descriptor.
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void DebugInfoDesc::ApplyToFields(DIVisitor *Visitor) {
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Visitor->Apply(Tag);
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}
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//===----------------------------------------------------------------------===//
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AnchorDesc::AnchorDesc()
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: DebugInfoDesc(DW_TAG_anchor), AnchorTag(0) {}
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AnchorDesc::AnchorDesc(AnchoredDesc *D)
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: DebugInfoDesc(DW_TAG_anchor), AnchorTag(D->getTag()) {}
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// Implement isa/cast/dyncast.
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bool AnchorDesc::classof(const DebugInfoDesc *D) {
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return D->getTag() == DW_TAG_anchor;
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}
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/// getLinkage - get linkage appropriate for this type of descriptor.
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GlobalValue::LinkageTypes AnchorDesc::getLinkage() const {
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return GlobalValue::LinkOnceLinkage;
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}
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/// ApplyToFields - Target the visitor to the fields of the TransUnitDesc.
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void AnchorDesc::ApplyToFields(DIVisitor *Visitor) {
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DebugInfoDesc::ApplyToFields(Visitor);
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Visitor->Apply(AnchorTag);
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}
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/// getDescString - Return a string used to compose global names and labels. A
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/// global variable name needs to be defined for each debug descriptor that is
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/// anchored. NOTE: that each global variable named here also needs to be added
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/// to the list of names left external in the internalizer.
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///
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/// ExternalNames.insert("llvm.dbg.compile_units");
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/// ExternalNames.insert("llvm.dbg.global_variables");
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/// ExternalNames.insert("llvm.dbg.subprograms");
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const char *AnchorDesc::getDescString() const {
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switch (AnchorTag) {
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case DW_TAG_compile_unit: {
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CompileUnitDesc CUD;
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return CUD.getAnchorString();
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}
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case DW_TAG_variable: {
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GlobalVariableDesc GVD;
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return GVD.getAnchorString();
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}
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case DW_TAG_subprogram: {
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SubprogramDesc SPD;
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return SPD.getAnchorString();
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}
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default: break;
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}
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assert(0 && "Tag does not have a case for anchor string");
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return "";
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}
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#ifndef NDEBUG
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void AnchorDesc::dump() {
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cerr << getDescString() << " "
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<< "Version(" << getVersion() << "), "
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<< "Tag(" << getTag() << "), "
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<< "AnchorTag(" << AnchorTag << ")\n";
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}
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#endif
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//===----------------------------------------------------------------------===//
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AnchoredDesc::AnchoredDesc(unsigned T)
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: DebugInfoDesc(T), Anchor(NULL) {}
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/// ApplyToFields - Target the visitor to the fields of the AnchoredDesc.
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void AnchoredDesc::ApplyToFields(DIVisitor *Visitor) {
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DebugInfoDesc::ApplyToFields(Visitor);
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Visitor->Apply(Anchor);
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}
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//===----------------------------------------------------------------------===//
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CompileUnitDesc::CompileUnitDesc()
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: AnchoredDesc(DW_TAG_compile_unit), Language(0), FileName(""),
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Directory(""), Producer("") {}
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// Implement isa/cast/dyncast.
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bool CompileUnitDesc::classof(const DebugInfoDesc *D) {
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return D->getTag() == DW_TAG_compile_unit;
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}
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/// ApplyToFields - Target the visitor to the fields of the CompileUnitDesc.
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///
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void CompileUnitDesc::ApplyToFields(DIVisitor *Visitor) {
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AnchoredDesc::ApplyToFields(Visitor);
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// Handle cases out of sync with compiler.
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if (getVersion() == 0) {
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unsigned DebugVersion;
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Visitor->Apply(DebugVersion);
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}
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Visitor->Apply(Language);
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Visitor->Apply(FileName);
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Visitor->Apply(Directory);
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Visitor->Apply(Producer);
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}
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#ifndef NDEBUG
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void CompileUnitDesc::dump() {
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cerr << getDescString() << " "
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<< "Version(" << getVersion() << "), "
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<< "Tag(" << getTag() << "), "
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<< "Anchor(" << getAnchor() << "), "
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<< "Language(" << Language << "), "
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<< "FileName(\"" << FileName << "\"), "
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<< "Directory(\"" << Directory << "\"), "
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<< "Producer(\"" << Producer << "\")\n";
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}
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#endif
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//===----------------------------------------------------------------------===//
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TypeDesc::TypeDesc(unsigned T)
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: DebugInfoDesc(T), Context(NULL), Name(""), File(NULL), Line(0), Size(0),
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Align(0), Offset(0), Flags(0) {}
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/// ApplyToFields - Target the visitor to the fields of the TypeDesc.
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///
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void TypeDesc::ApplyToFields(DIVisitor *Visitor) {
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DebugInfoDesc::ApplyToFields(Visitor);
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Visitor->Apply(Context);
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Visitor->Apply(Name);
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Visitor->Apply(File);
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Visitor->Apply(Line);
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Visitor->Apply(Size);
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Visitor->Apply(Align);
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Visitor->Apply(Offset);
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if (getVersion() > LLVMDebugVersion4) Visitor->Apply(Flags);
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}
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#ifndef NDEBUG
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void TypeDesc::dump() {
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cerr << getDescString() << " "
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<< "Version(" << getVersion() << "), "
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<< "Tag(" << getTag() << "), "
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<< "Context(" << Context << "), "
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<< "Name(\"" << Name << "\"), "
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<< "File(" << File << "), "
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<< "Line(" << Line << "), "
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<< "Size(" << Size << "), "
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<< "Align(" << Align << "), "
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<< "Offset(" << Offset << "), "
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<< "Flags(" << Flags << ")\n";
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}
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#endif
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//===----------------------------------------------------------------------===//
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BasicTypeDesc::BasicTypeDesc()
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: TypeDesc(DW_TAG_base_type), Encoding(0) {}
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// Implement isa/cast/dyncast.
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bool BasicTypeDesc::classof(const DebugInfoDesc *D) {
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return D->getTag() == DW_TAG_base_type;
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}
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/// ApplyToFields - Target the visitor to the fields of the BasicTypeDesc.
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void BasicTypeDesc::ApplyToFields(DIVisitor *Visitor) {
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TypeDesc::ApplyToFields(Visitor);
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Visitor->Apply(Encoding);
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}
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#ifndef NDEBUG
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void BasicTypeDesc::dump() {
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cerr << getDescString() << " "
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<< "Version(" << getVersion() << "), "
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<< "Tag(" << getTag() << "), "
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<< "Context(" << getContext() << "), "
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<< "Name(\"" << getName() << "\"), "
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<< "Size(" << getSize() << "), "
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<< "Encoding(" << Encoding << ")\n";
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}
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#endif
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//===----------------------------------------------------------------------===//
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DerivedTypeDesc::DerivedTypeDesc(unsigned T)
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: TypeDesc(T), FromType(NULL) {}
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// Implement isa/cast/dyncast.
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bool DerivedTypeDesc::classof(const DebugInfoDesc *D) {
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unsigned T = D->getTag();
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switch (T) {
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case DW_TAG_typedef:
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case DW_TAG_pointer_type:
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case DW_TAG_reference_type:
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case DW_TAG_const_type:
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case DW_TAG_volatile_type:
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case DW_TAG_restrict_type:
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case DW_TAG_member:
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case DW_TAG_inheritance:
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return true;
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default: break;
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}
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return false;
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}
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/// ApplyToFields - Target the visitor to the fields of the DerivedTypeDesc.
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void DerivedTypeDesc::ApplyToFields(DIVisitor *Visitor) {
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TypeDesc::ApplyToFields(Visitor);
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Visitor->Apply(FromType);
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}
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#ifndef NDEBUG
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void DerivedTypeDesc::dump() {
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cerr << getDescString() << " "
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<< "Version(" << getVersion() << "), "
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<< "Tag(" << getTag() << "), "
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<< "Context(" << getContext() << "), "
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<< "Name(\"" << getName() << "\"), "
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<< "Size(" << getSize() << "), "
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<< "File(" << getFile() << "), "
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<< "Line(" << getLine() << "), "
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<< "FromType(" << FromType << ")\n";
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}
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#endif
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//===----------------------------------------------------------------------===//
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CompositeTypeDesc::CompositeTypeDesc(unsigned T)
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: DerivedTypeDesc(T), Elements() {}
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// Implement isa/cast/dyncast.
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bool CompositeTypeDesc::classof(const DebugInfoDesc *D) {
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unsigned T = D->getTag();
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switch (T) {
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case DW_TAG_array_type:
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case DW_TAG_structure_type:
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case DW_TAG_union_type:
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case DW_TAG_enumeration_type:
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case DW_TAG_vector_type:
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case DW_TAG_subroutine_type:
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return true;
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default: break;
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}
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return false;
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}
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/// ApplyToFields - Target the visitor to the fields of the CompositeTypeDesc.
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///
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void CompositeTypeDesc::ApplyToFields(DIVisitor *Visitor) {
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DerivedTypeDesc::ApplyToFields(Visitor);
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Visitor->Apply(Elements);
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}
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#ifndef NDEBUG
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void CompositeTypeDesc::dump() {
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cerr << getDescString() << " "
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<< "Version(" << getVersion() << "), "
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<< "Tag(" << getTag() << "), "
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<< "Context(" << getContext() << "), "
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<< "Name(\"" << getName() << "\"), "
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<< "Size(" << getSize() << "), "
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<< "File(" << getFile() << "), "
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<< "Line(" << getLine() << "), "
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<< "FromType(" << getFromType() << "), "
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<< "Elements.size(" << Elements.size() << ")\n";
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}
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#endif
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//===----------------------------------------------------------------------===//
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SubrangeDesc::SubrangeDesc()
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: DebugInfoDesc(DW_TAG_subrange_type), Lo(0), Hi(0) {}
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// Implement isa/cast/dyncast.
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bool SubrangeDesc::classof(const DebugInfoDesc *D) {
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return D->getTag() == DW_TAG_subrange_type;
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}
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/// ApplyToFields - Target the visitor to the fields of the SubrangeDesc.
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void SubrangeDesc::ApplyToFields(DIVisitor *Visitor) {
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DebugInfoDesc::ApplyToFields(Visitor);
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Visitor->Apply(Lo);
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Visitor->Apply(Hi);
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}
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#ifndef NDEBUG
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void SubrangeDesc::dump() {
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cerr << getDescString() << " "
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<< "Version(" << getVersion() << "), "
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<< "Tag(" << getTag() << "), "
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<< "Lo(" << Lo << "), "
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<< "Hi(" << Hi << ")\n";
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}
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#endif
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//===----------------------------------------------------------------------===//
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EnumeratorDesc::EnumeratorDesc()
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: DebugInfoDesc(DW_TAG_enumerator), Name(""), Value(0) {}
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// Implement isa/cast/dyncast.
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bool EnumeratorDesc::classof(const DebugInfoDesc *D) {
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return D->getTag() == DW_TAG_enumerator;
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}
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/// ApplyToFields - Target the visitor to the fields of the EnumeratorDesc.
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void EnumeratorDesc::ApplyToFields(DIVisitor *Visitor) {
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DebugInfoDesc::ApplyToFields(Visitor);
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Visitor->Apply(Name);
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Visitor->Apply(Value);
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}
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#ifndef NDEBUG
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void EnumeratorDesc::dump() {
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cerr << getDescString() << " "
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<< "Version(" << getVersion() << "), "
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<< "Tag(" << getTag() << "), "
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<< "Name(" << Name << "), "
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<< "Value(" << Value << ")\n";
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}
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#endif
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//===----------------------------------------------------------------------===//
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VariableDesc::VariableDesc(unsigned T)
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: DebugInfoDesc(T), Context(NULL), Name(""), File(NULL), Line(0), TyDesc(0)
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{}
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// Implement isa/cast/dyncast.
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bool VariableDesc::classof(const DebugInfoDesc *D) {
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unsigned T = D->getTag();
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switch (T) {
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case DW_TAG_auto_variable:
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case DW_TAG_arg_variable:
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case DW_TAG_return_variable:
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return true;
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default: break;
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}
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return false;
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}
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/// ApplyToFields - Target the visitor to the fields of the VariableDesc.
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void VariableDesc::ApplyToFields(DIVisitor *Visitor) {
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DebugInfoDesc::ApplyToFields(Visitor);
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Visitor->Apply(Context);
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Visitor->Apply(Name);
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Visitor->Apply(File);
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Visitor->Apply(Line);
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Visitor->Apply(TyDesc);
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}
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#ifndef NDEBUG
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void VariableDesc::dump() {
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cerr << getDescString() << " "
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<< "Version(" << getVersion() << "), "
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<< "Tag(" << getTag() << "), "
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<< "Context(" << Context << "), "
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<< "Name(\"" << Name << "\"), "
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<< "File(" << File << "), "
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<< "Line(" << Line << "), "
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<< "TyDesc(" << TyDesc << ")\n";
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}
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#endif
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//===----------------------------------------------------------------------===//
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GlobalDesc::GlobalDesc(unsigned T)
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: AnchoredDesc(T), Context(0), Name(""), FullName(""), LinkageName(""),
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File(NULL), Line(0), TyDesc(NULL), IsStatic(false), IsDefinition(false) {}
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/// ApplyToFields - Target the visitor to the fields of the global.
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///
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void GlobalDesc::ApplyToFields(DIVisitor *Visitor) {
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AnchoredDesc::ApplyToFields(Visitor);
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Visitor->Apply(Context);
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Visitor->Apply(Name);
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Visitor->Apply(FullName);
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Visitor->Apply(LinkageName);
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Visitor->Apply(File);
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Visitor->Apply(Line);
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Visitor->Apply(TyDesc);
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Visitor->Apply(IsStatic);
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Visitor->Apply(IsDefinition);
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}
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//===----------------------------------------------------------------------===//
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GlobalVariableDesc::GlobalVariableDesc()
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: GlobalDesc(DW_TAG_variable), Global(NULL) {}
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// Implement isa/cast/dyncast.
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bool GlobalVariableDesc::classof(const DebugInfoDesc *D) {
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return D->getTag() == DW_TAG_variable;
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}
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/// ApplyToFields - Target the visitor to the fields of the GlobalVariableDesc.
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void GlobalVariableDesc::ApplyToFields(DIVisitor *Visitor) {
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GlobalDesc::ApplyToFields(Visitor);
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Visitor->Apply(Global);
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}
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#ifndef NDEBUG
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void GlobalVariableDesc::dump() {
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cerr << getDescString() << " "
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<< "Version(" << getVersion() << "), "
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<< "Tag(" << getTag() << "), "
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<< "Anchor(" << getAnchor() << "), "
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<< "Name(\"" << getName() << "\"), "
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<< "FullName(\"" << getFullName() << "\"), "
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<< "LinkageName(\"" << getLinkageName() << "\"), "
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<< "File(" << getFile() << "),"
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<< "Line(" << getLine() << "),"
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<< "Type(" << getType() << "), "
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<< "IsStatic(" << (isStatic() ? "true" : "false") << "), "
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|
<< "IsDefinition(" << (isDefinition() ? "true" : "false") << "), "
|
|
<< "Global(" << Global << ")\n";
|
|
}
|
|
#endif
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
SubprogramDesc::SubprogramDesc()
|
|
: GlobalDesc(DW_TAG_subprogram) {}
|
|
|
|
// Implement isa/cast/dyncast.
|
|
bool SubprogramDesc::classof(const DebugInfoDesc *D) {
|
|
return D->getTag() == DW_TAG_subprogram;
|
|
}
|
|
|
|
/// ApplyToFields - Target the visitor to the fields of the SubprogramDesc.
|
|
void SubprogramDesc::ApplyToFields(DIVisitor *Visitor) {
|
|
GlobalDesc::ApplyToFields(Visitor);
|
|
}
|
|
|
|
#ifndef NDEBUG
|
|
void SubprogramDesc::dump() {
|
|
cerr << getDescString() << " "
|
|
<< "Version(" << getVersion() << "), "
|
|
<< "Tag(" << getTag() << "), "
|
|
<< "Anchor(" << getAnchor() << "), "
|
|
<< "Name(\"" << getName() << "\"), "
|
|
<< "FullName(\"" << getFullName() << "\"), "
|
|
<< "LinkageName(\"" << getLinkageName() << "\"), "
|
|
<< "File(" << getFile() << "),"
|
|
<< "Line(" << getLine() << "),"
|
|
<< "Type(" << getType() << "), "
|
|
<< "IsStatic(" << (isStatic() ? "true" : "false") << "), "
|
|
<< "IsDefinition(" << (isDefinition() ? "true" : "false") << ")\n";
|
|
}
|
|
#endif
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
BlockDesc::BlockDesc()
|
|
: DebugInfoDesc(DW_TAG_lexical_block), Context(NULL) {}
|
|
|
|
// Implement isa/cast/dyncast.
|
|
bool BlockDesc::classof(const DebugInfoDesc *D) {
|
|
return D->getTag() == DW_TAG_lexical_block;
|
|
}
|
|
|
|
/// ApplyToFields - Target the visitor to the fields of the BlockDesc.
|
|
void BlockDesc::ApplyToFields(DIVisitor *Visitor) {
|
|
DebugInfoDesc::ApplyToFields(Visitor);
|
|
|
|
Visitor->Apply(Context);
|
|
}
|
|
|
|
#ifndef NDEBUG
|
|
void BlockDesc::dump() {
|
|
cerr << getDescString() << " "
|
|
<< "Version(" << getVersion() << "), "
|
|
<< "Tag(" << getTag() << "),"
|
|
<< "Context(" << Context << ")\n";
|
|
}
|
|
#endif
|