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Add support to create class type.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121279 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Devang Patel 2010-12-08 20:18:20 +00:00
parent f4f39d35cd
commit 0a2551de2c
4 changed files with 67 additions and 2 deletions
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22
include/llvm/Analysis/DIBuilder.h
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@ -142,6 +142,26 @@ namespace llvm {
uint64_t AlignInBits, uint64_t OffsetInBits,
unsigned Flags, DIType Ty);
/// CreateClassType - Create debugging information entry for a class.
/// @param Scope Scope in which this class is defined.
/// @param Name class name.
/// @param File File where this member is defined.
/// @param LineNo Line number.
/// @param SizeInBits Member size.
/// @param AlignInBits Member alignment.
/// @param OffsetInBits Member offset.
/// @param Flags Flags to encode member attribute, e.g. private
/// @param Elements class members.
/// @param VTableHolder Debug info of the base class that contains vtable
/// for this type. This is used in
/// DW_AT_containing_type. See DWARF documentation
/// for more info.
DIType CreateClassType(DIDescriptor Scope, StringRef Name, DIFile File,
unsigned LineNumber, uint64_t SizeInBits,
uint64_t AlignInBits, uint64_t OffsetInBits,
unsigned Flags, DIType DerivedFrom,
DIArray Elements, MDNode *VTableHolder = 0);
/// CreateStructType - Create debugging information entry for a struct.
/// @param Scope Scope in which this struct is defined.
/// @param Name Struct name.
@ -149,7 +169,6 @@ namespace llvm {
/// @param LineNo Line number.
/// @param SizeInBits Member size.
/// @param AlignInBits Member alignment.
/// @param OffsetInBits Member offset.
/// @param Flags Flags to encode member attribute, e.g. private
/// @param Elements Struct elements.
/// @param RunTimeLang Optional parameter, Objective-C runtime version.
@ -165,7 +184,6 @@ namespace llvm {
/// @param LineNo Line number.
/// @param SizeInBits Member size.
/// @param AlignInBits Member alignment.
/// @param OffsetInBits Member offset.
/// @param Flags Flags to encode member attribute, e.g. private
/// @param Elements Union elements.
/// @param RunTimeLang Optional parameter, Objective-C runtime version.

1
include/llvm/Analysis/DebugInfo.h
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@ -288,6 +288,7 @@ namespace llvm {
/// replaceAllUsesWith - Replace all uses of debug info referenced by
/// this descriptor.
void replaceAllUsesWith(DIDescriptor &D);
void replaceAllUsesWith(MDNode *D);
/// print - print type.
void print(raw_ostream &OS) const;

26
lib/Analysis/DIBuilder.cpp
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@ -236,6 +236,32 @@ DIType DIBuilder::CreateMemberType(StringRef Name,
return DIType(MDNode::get(VMContext, &Elts[0], array_lengthof(Elts)));
}
/// CreateClassType - Create debugging information entry for a class.
DIType DIBuilder::CreateClassType(DIDescriptor Context, StringRef Name,
DIFile File, unsigned LineNumber,
uint64_t SizeInBits, uint64_t AlignInBits,
uint64_t OffsetInBits, unsigned Flags,
DIType DerivedFrom, DIArray Elements,
MDNode *VTableHoder) {
// TAG_class_type is encoded in DICompositeType format.
Value *Elts[] = {
GetTagConstant(VMContext, dwarf::DW_TAG_class_type),
Context,
MDString::get(VMContext, Name),
File,
ConstantInt::get(Type::getInt32Ty(VMContext), LineNumber),
ConstantInt::get(Type::getInt64Ty(VMContext), SizeInBits),
ConstantInt::get(Type::getInt64Ty(VMContext), AlignInBits),
ConstantInt::get(Type::getInt32Ty(VMContext), OffsetInBits),
ConstantInt::get(Type::getInt32Ty(VMContext), Flags),
DerivedFrom,
Elements,
ConstantInt::get(Type::getInt32Ty(VMContext), 0),
VTableHoder
};
return DIType(MDNode::get(VMContext, &Elts[0], array_lengthof(Elts)));
}
/// CreateStructType - Create debugging information entry for a struct.
DIType DIBuilder::CreateStructType(DIDescriptor Context, StringRef Name,
DIFile File, unsigned LineNumber,

20
lib/Analysis/DebugInfo.cpp
View File

@ -288,6 +288,26 @@ void DIType::replaceAllUsesWith(DIDescriptor &D) {
}
}
/// replaceAllUsesWith - Replace all uses of debug info referenced by
/// this descriptor.
void DIType::replaceAllUsesWith(MDNode *D) {
if (!DbgNode)
return;
// Since we use a TrackingVH for the node, its easy for clients to manufacture
// legitimate situations where they want to replaceAllUsesWith() on something
// which, due to uniquing, has merged with the source. We shield clients from
// this detail by allowing a value to be replaced with replaceAllUsesWith()
// itself.
if (DbgNode != D) {
MDNode *Node = const_cast<MDNode*>(DbgNode);
const MDNode *DN = D;
const Value *V = cast_or_null<Value>(DN);
Node->replaceAllUsesWith(const_cast<Value*>(V));
MDNode::deleteTemporary(Node);
}
}
/// Verify - Verify that a compile unit is well formed.
bool DICompileUnit::Verify() const {
if (!DbgNode)