Add support to create variables, structs etc.. using DIBuilder.
This is still work in progress. llvm-svn: 121205
This commit is contained in:
Devang Patel
parent
c5f5f0a166
commit
746660fc7b
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@ -19,7 +19,11 @@
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#include "llvm/ADT/StringRef.h"
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namespace llvm {
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class BasicBlock;
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class Instruction;
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class Function;
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class Module;
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class Value;
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class LLVMContext;
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class MDNode;
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class StringRef;
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@ -27,6 +31,10 @@ namespace llvm {
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class DIFile;
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class DIEnumerator;
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class DIType;
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class DIArray;
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class DIGlobalVariable;
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class DINameSpace;
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class DIVariable;
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class DIBuilder {
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private:
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@ -34,6 +42,9 @@ namespace llvm {
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LLVMContext & VMContext;
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MDNode *TheCU;
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Function *DeclareFn; // llvm.dbg.declare
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Function *ValueFn; // llvm.dbg.value
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DIBuilder(const DIBuilder &); // DO NOT IMPLEMENT
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void operator=(const DIBuilder &); // DO NOT IMPLEMENT
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@ -82,31 +93,161 @@ namespace llvm {
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DIType CreateQualifiedType(unsigned Tag, DIType FromTy);
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/// CreatePointerType - Create debugging information entry for a pointer.
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/// @param PointeeTy Type pointed by this pointer.
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/// @param SizeInBits Size.
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/// @param AlignInBits Alignment. (optional)
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/// @param Name Pointer type name. (optional)
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DIType CreatePointerType(DIType PointeeTy, uint64_t SizeInBits,
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uint64_t AlignInBits = 0, StringRef Name = StringRef());
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uint64_t AlignInBits = 0,
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StringRef Name = StringRef());
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/// CreateReferenceType - Create debugging information entry for a reference.
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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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/// CreateTypedef - Create debugging information entry for a typedef.
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DIType CreateTypedef(DIType Ty, StringRef Name, DIFile F, unsigned LineNo);
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/// @param Ty Original type.
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/// @param Name Typedef name.
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/// @param File File where this type is defined.
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/// @param LineNo Line number.
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DIType CreateTypedef(DIType Ty, StringRef Name, DIFile File,
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unsigned LineNo);
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/// CreateFriend - Create debugging information entry for a 'friend'.
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DIType CreateFriend(DIType Ty, DIType FriendTy);
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/// CreateInheritance - Create debugging information entry to establish
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/// inheritance relationship between two types.
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/// @param Ty Original type.
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/// @param BaseTy Base type. Ty is inherits from base.
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/// @param BaseOffset Base offset.
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/// @param Flags Flags to describe inheritance attribute,
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/// e.g. private
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DIType CreateInheritance(DIType Ty, DIType BaseTy, uint64_t BaseOffset,
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unsigned Flags);
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/// CreateMemberType - Create debugging information entry for a member.
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DIType CreateMemberType(DIDescriptor Context, StringRef Name, DIFile F,
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unsigned LineNumber, uint64_t SizeInBits,
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/// @param Name Member name.
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/// @param File File where this member is defined.
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/// @param LineNo Line number.
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/// @param SizeInBits Member size.
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/// @param AlignInBits Member alignment.
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/// @param OffsetInBits Member offset.
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/// @param Flags Flags to encode member attribute, e.g. private
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/// @param Ty Parent type.
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DIType CreateMemberType(StringRef Name, DIFile File,
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unsigned LineNo, uint64_t SizeInBits,
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uint64_t AlignInBits, uint64_t OffsetInBits,
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unsigned Flags, DIType Ty);
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/// CreateStructType - Create debugging information entry for a struct.
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DIType CreateStructType(DIDescriptor Context, StringRef Name, DIFile F,
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unsigned LineNumber, uint64_t SizeInBits,
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uint64_t AlignInBits, unsigned Flags,
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DIArray Elements, unsigned RunTimeLang = 0);
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/// CreateArtificialType - Create a new DIType with "artificial" flag set.
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DIType CreateArtificialType(DIType Ty);
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/// CreateTemporaryType - Create a temporary forward-declared type.
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DIType CreateTemporaryType();
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DIType CreateTemporaryType(DIFile F);
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/// GetOrCreateArray - Get a DIArray, create one if required.
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DIArray GetOrCreateArray(Value *const *Elements, unsigned NumElements);
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/// CreateGlobalVariable - Create a new descriptor for the specified global.
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/// @param Name Name of the variable.
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/// @param LinakgeName Mangled name of the variable.
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/// @param File File where this variable is defined.
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/// @param LineNo Line number.
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/// @param Ty Variable Type.
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/// @param isLocalToUnit Boolean flag indicate whether this variable is
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/// externally visible or not.
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/// @param Val llvm::Value of the variable.
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DIGlobalVariable
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CreateGlobalVariable(StringRef Name,
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StringRef LinkageName, DIFile File, unsigned LineNo,
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DIType Ty, bool isLocalToUnit, llvm::Value *Val);
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/// CreateStaticVariable - Create a new descriptor for the specified
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/// variable.
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/// @param Conext Variable scope.
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/// @param Name Name of the variable.
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/// @param LinakgeName Mangled name of the variable.
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/// @param File File where this variable is defined.
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/// @param LineNo Line number.
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/// @param Ty Variable Type.
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/// @param isLocalToUnit Boolean flag indicate whether this variable is
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/// externally visible or not.
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/// @param Val llvm::Value of the variable.
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DIGlobalVariable
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CreateStaticVariable(DIDescriptor Context, StringRef Name,
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StringRef LinkageName, DIFile File, unsigned LineNo,
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DIType Ty, bool isLocalToUnit, llvm::Value *Val);
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/// CreateComplexVariable - Create a new descriptor for the specified
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/// variable which has a complex address expression for its address.
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/// @param Tag Dwarf TAG. Usually DW_TAG_auto_variable or
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/// DW_TAG_arg_variable.
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/// @param Scope Variable scope.
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/// @param Name Variable name.
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/// @param File File where this variable is defined.
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/// @param LineNo Line number.
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/// @param Ty Variable Type
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/// @param Addr A pointer to a vector of complex address operations.
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/// @param NumAddr Num of address operations in the vector.
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DIVariable CreateComplexVariable(unsigned Tag, DIDescriptor Scope,
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StringRef Name, DIFile F, unsigned LineNo,
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DIType Ty, Value *const *Addr,
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unsigned NumAddr);
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/// CreateNameSpace - This creates new descriptor for a namespace
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/// with the specified parent scope.
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/// @param Scope Namespace scope
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/// @param Name Name of this namespace
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/// @param File Source file
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/// @param LineNo Line number
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DINameSpace CreateNameSpace(DIDescriptor Scope, StringRef Name,
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DIFile File, unsigned LineNo);
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/// InsertDeclare - Insert a new llvm.dbg.declare intrinsic call.
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/// @param Storage llvm::Value of the variable
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/// @param VarInfo Variable's debug info descriptor.
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/// @param InsertAtEnd Location for the new intrinsic.
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Instruction *InsertDeclare(llvm::Value *Storage, DIVariable VarInfo,
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BasicBlock *InsertAtEnd);
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/// InsertDeclare - Insert a new llvm.dbg.declare intrinsic call.
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/// @param Storage llvm::Value of the variable
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/// @param VarInfo Variable's debug info descriptor.
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/// @param InsertBefore Location for the new intrinsic.
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Instruction *InsertDeclare(llvm::Value *Storage, DIVariable VarInfo,
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Instruction *InsertBefore);
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/// InsertDbgValueIntrinsic - Insert a new llvm.dbg.value intrinsic call.
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/// @param Val llvm::Value of the variable
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/// @param Offset Offset
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/// @param VarInfo Variable's debug info descriptor.
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/// @param InsertAtEnd Location for the new intrinsic.
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Instruction *InsertDbgValueIntrinsic(llvm::Value *Val, uint64_t Offset,
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DIVariable VarInfo,
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BasicBlock *InsertAtEnd);
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/// InsertDbgValueIntrinsic - Insert a new llvm.dbg.value intrinsic call.
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/// @param Val llvm::Value of the variable
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/// @param Offset Offset
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/// @param VarInfo Variable's debug info descriptor.
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/// @param InsertBefore Location for the new intrinsic.
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Instruction *InsertDbgValueIntrinsic(llvm::Value *Val, uint64_t Offset,
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DIVariable VarInfo,
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Instruction *InsertBefore);
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};
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} // end namespace llvm
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@ -715,6 +715,7 @@ namespace llvm {
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/// CreateTemporaryType - Create a temporary forward-declared type.
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DIType CreateTemporaryType();
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DIType CreateTemporaryType(DIFile F);
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/// CreateArtificialType - Create a new DIType with "artificial" flag set.
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DIType CreateArtificialType(DIType Ty);
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@ -28,7 +28,7 @@ static Constant *GetTagConstant(LLVMContext &VMContext, unsigned Tag) {
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return ConstantInt::get(Type::getInt32Ty(VMContext), Tag | LLVMDebugVersion);
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}
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DIBuilder::DIBuilder(Module &m)
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: M(m), VMContext(M.getContext()), TheCU(0) {}
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: M(m), VMContext(M.getContext()), TheCU(0), DeclareFn(0), ValueFn(0) {}
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/// CreateCompileUnit - A CompileUnit provides an anchor for all debugging
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/// information generated during this instance of compilation.
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@ -214,17 +214,17 @@ DIType DIBuilder::CreateInheritance(DIType Ty, DIType BaseTy,
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}
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/// CreateMemberType - Create debugging information entry for a member.
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DIType DIBuilder::CreateMemberType(DIDescriptor Context, StringRef Name,
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DIFile F, unsigned LineNumber,
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DIType DIBuilder::CreateMemberType(StringRef Name,
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DIFile File, unsigned LineNumber,
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uint64_t SizeInBits, uint64_t AlignInBits,
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uint64_t OffsetInBits, unsigned Flags,
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DIType Ty) {
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// TAG_member is encoded in DIDerivedType format.
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Value *Elts[] = {
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GetTagConstant(VMContext, dwarf::DW_TAG_member),
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Context,
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File, // Or TheCU ? Ty ?
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MDString::get(VMContext, Name),
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F,
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File,
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ConstantInt::get(Type::getInt32Ty(VMContext), LineNumber),
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ConstantInt::get(Type::getInt64Ty(VMContext), SizeInBits),
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ConstantInt::get(Type::getInt64Ty(VMContext), AlignInBits),
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@ -235,6 +235,30 @@ DIType DIBuilder::CreateMemberType(DIDescriptor Context, StringRef Name,
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return DIType(MDNode::get(VMContext, &Elts[0], array_lengthof(Elts)));
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}
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/// CreateStructType - Create debugging information entry for a struct.
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DIType DIBuilder::CreateStructType(DIDescriptor Context, StringRef Name, DIFile F,
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unsigned LineNumber, uint64_t SizeInBits,
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uint64_t AlignInBits, unsigned Flags,
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DIArray Elements, unsigned RunTimeLang) {
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// TAG_structure_type is encoded in DICompositeType format.
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Value *Elts[] = {
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GetTagConstant(VMContext, dwarf::DW_TAG_structure_type),
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Context,
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MDString::get(VMContext, Name),
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F,
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ConstantInt::get(Type::getInt32Ty(VMContext), LineNumber),
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ConstantInt::get(Type::getInt64Ty(VMContext), SizeInBits),
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ConstantInt::get(Type::getInt64Ty(VMContext), AlignInBits),
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ConstantInt::get(Type::getInt32Ty(VMContext), Flags),
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llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)),
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Elements,
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ConstantInt::get(Type::getInt32Ty(VMContext), RunTimeLang),
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llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)),
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};
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return DIType(MDNode::get(VMContext, &Elts[0], array_lengthof(Elts)));
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}
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/// CreateArtificialType - Create a new DIType with "artificial" flag set.
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DIType DIBuilder::CreateArtificialType(DIType Ty) {
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if (Ty.isArtificial())
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@ -258,3 +282,183 @@ DIType DIBuilder::CreateArtificialType(DIType Ty) {
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return DIType(MDNode::get(VMContext, Elts.data(), Elts.size()));
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}
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/// CreateTemporaryType - Create a temporary forward-declared type.
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DIType DIBuilder::CreateTemporaryType() {
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// Give the temporary MDNode a tag. It doesn't matter what tag we
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// use here as long as DIType accepts it.
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Value *Elts[] = { GetTagConstant(VMContext, DW_TAG_base_type) };
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MDNode *Node = MDNode::getTemporary(VMContext, Elts, array_lengthof(Elts));
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return DIType(Node);
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}
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/// CreateTemporaryType - Create a temporary forward-declared type.
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DIType DIBuilder::CreateTemporaryType(DIFile F) {
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// Give the temporary MDNode a tag. It doesn't matter what tag we
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// use here as long as DIType accepts it.
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Value *Elts[] = {
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GetTagConstant(VMContext, DW_TAG_base_type),
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F.getCompileUnit(),
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NULL,
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F
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};
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MDNode *Node = MDNode::getTemporary(VMContext, Elts, array_lengthof(Elts));
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return DIType(Node);
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}
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/// GetOrCreateArray - Get a DIArray, create one if required.
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DIArray DIBuilder::GetOrCreateArray(Value *const *Elements, unsigned NumElements) {
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if (NumElements == 0) {
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Value *Null = llvm::Constant::getNullValue(Type::getInt32Ty(VMContext));
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return DIArray(MDNode::get(VMContext, &Null, 1));
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}
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return DIArray(MDNode::get(VMContext, Elements, NumElements));
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}
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/// CreateGlobalVariable - Create a new descriptor for the specified global.
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DIGlobalVariable DIBuilder::
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CreateGlobalVariable(StringRef Name,
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StringRef LinkageName, DIFile F, unsigned LineNumber,
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DIType Ty, bool isLocalToUnit, llvm::Value *Val) {
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Value *Elts[] = {
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GetTagConstant(VMContext, dwarf::DW_TAG_variable),
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llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)),
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TheCU,
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MDString::get(VMContext, Name),
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MDString::get(VMContext, Name),
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MDString::get(VMContext, LinkageName),
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F,
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ConstantInt::get(Type::getInt32Ty(VMContext), LineNumber),
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Ty,
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ConstantInt::get(Type::getInt32Ty(VMContext), isLocalToUnit),
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ConstantInt::get(Type::getInt32Ty(VMContext), 1), /* isDefinition*/
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Val
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};
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MDNode *Node = MDNode::get(VMContext, &Elts[0], array_lengthof(Elts));
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// Create a named metadata so that we do not lose this mdnode.
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NamedMDNode *NMD = M.getOrInsertNamedMetadata("llvm.dbg.gv");
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NMD->addOperand(Node);
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return DIGlobalVariable(Node);
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}
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/// CreateStaticVariable - Create a new descriptor for the specified static
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/// variable.
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DIGlobalVariable DIBuilder::
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CreateStaticVariable(DIDescriptor Context, StringRef Name,
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StringRef LinkageName, DIFile F, unsigned LineNumber,
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DIType Ty, bool isLocalToUnit, llvm::Value *Val) {
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Value *Elts[] = {
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GetTagConstant(VMContext, dwarf::DW_TAG_variable),
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llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)),
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Context,
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MDString::get(VMContext, Name),
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MDString::get(VMContext, Name),
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MDString::get(VMContext, LinkageName),
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F,
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ConstantInt::get(Type::getInt32Ty(VMContext), LineNumber),
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Ty,
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ConstantInt::get(Type::getInt32Ty(VMContext), isLocalToUnit),
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ConstantInt::get(Type::getInt32Ty(VMContext), 1), /* isDefinition*/
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Val
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};
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MDNode *Node = MDNode::get(VMContext, &Elts[0], array_lengthof(Elts));
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// Create a named metadata so that we do not lose this mdnode.
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NamedMDNode *NMD = M.getOrInsertNamedMetadata("llvm.dbg.gv");
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NMD->addOperand(Node);
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return DIGlobalVariable(Node);
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}
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/// CreateComplexVariable - Create a new descriptor for the specified variable
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/// which has a complex address expression for its address.
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DIVariable DIBuilder::CreateComplexVariable(unsigned Tag, DIDescriptor Scope,
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StringRef Name, DIFile F,
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unsigned LineNo,
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DIType Ty, Value *const *Addr,
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unsigned NumAddr) {
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SmallVector<Value *, 15> Elts;
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Elts.push_back(GetTagConstant(VMContext, Tag));
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Elts.push_back(Scope);
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Elts.push_back(MDString::get(VMContext, Name));
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Elts.push_back(F);
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Elts.push_back(ConstantInt::get(Type::getInt32Ty(VMContext), LineNo));
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Elts.push_back(Ty);
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Elts.append(Addr, Addr+NumAddr);
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return DIVariable(MDNode::get(VMContext, Elts.data(), Elts.size()));
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}
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/// CreateNameSpace - This creates new descriptor for a namespace
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/// with the specified parent scope.
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DINameSpace DIBuilder::CreateNameSpace(DIDescriptor Scope, StringRef Name,
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DIFile File, unsigned LineNo) {
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Value *Elts[] = {
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GetTagConstant(VMContext, dwarf::DW_TAG_namespace),
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Scope,
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MDString::get(VMContext, Name),
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File,
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ConstantInt::get(Type::getInt32Ty(VMContext), LineNo)
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};
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return DINameSpace(MDNode::get(VMContext, &Elts[0], array_lengthof(Elts)));
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}
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/// InsertDeclare - Insert a new llvm.dbg.declare intrinsic call.
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Instruction *DIBuilder::InsertDeclare(Value *Storage, DIVariable VarInfo,
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Instruction *InsertBefore) {
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assert(Storage && "no storage passed to dbg.declare");
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assert(VarInfo.Verify() && "empty DIVariable passed to dbg.declare");
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if (!DeclareFn)
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DeclareFn = Intrinsic::getDeclaration(&M, Intrinsic::dbg_declare);
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Value *Args[] = { MDNode::get(Storage->getContext(), &Storage, 1), VarInfo };
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return CallInst::Create(DeclareFn, Args, Args+2, "", InsertBefore);
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}
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/// InsertDeclare - Insert a new llvm.dbg.declare intrinsic call.
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Instruction *DIBuilder::InsertDeclare(Value *Storage, DIVariable VarInfo,
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BasicBlock *InsertAtEnd) {
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assert(Storage && "no storage passed to dbg.declare");
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assert(VarInfo.Verify() && "invalid DIVariable passed to dbg.declare");
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if (!DeclareFn)
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DeclareFn = Intrinsic::getDeclaration(&M, Intrinsic::dbg_declare);
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Value *Args[] = { MDNode::get(Storage->getContext(), &Storage, 1), VarInfo };
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// If this block already has a terminator then insert this intrinsic
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// before the terminator.
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if (TerminatorInst *T = InsertAtEnd->getTerminator())
|
||||
return CallInst::Create(DeclareFn, Args, Args+2, "", T);
|
||||
else
|
||||
return CallInst::Create(DeclareFn, Args, Args+2, "", InsertAtEnd);
|
||||
}
|
||||
|
||||
/// InsertDbgValueIntrinsic - Insert a new llvm.dbg.value intrinsic call.
|
||||
Instruction *DIBuilder::InsertDbgValueIntrinsic(Value *V, uint64_t Offset,
|
||||
DIVariable VarInfo,
|
||||
Instruction *InsertBefore) {
|
||||
assert(V && "no value passed to dbg.value");
|
||||
assert(VarInfo.Verify() && "invalid DIVariable passed to dbg.value");
|
||||
if (!ValueFn)
|
||||
ValueFn = Intrinsic::getDeclaration(&M, Intrinsic::dbg_value);
|
||||
|
||||
Value *Args[] = { MDNode::get(V->getContext(), &V, 1),
|
||||
ConstantInt::get(Type::getInt64Ty(V->getContext()), Offset),
|
||||
VarInfo };
|
||||
return CallInst::Create(ValueFn, Args, Args+3, "", InsertBefore);
|
||||
}
|
||||
|
||||
/// InsertDbgValueIntrinsic - Insert a new llvm.dbg.value intrinsic call.
|
||||
Instruction *DIBuilder::InsertDbgValueIntrinsic(Value *V, uint64_t Offset,
|
||||
DIVariable VarInfo,
|
||||
BasicBlock *InsertAtEnd) {
|
||||
assert(V && "no value passed to dbg.value");
|
||||
assert(VarInfo.Verify() && "invalid DIVariable passed to dbg.value");
|
||||
if (!ValueFn)
|
||||
ValueFn = Intrinsic::getDeclaration(&M, Intrinsic::dbg_value);
|
||||
|
||||
Value *Args[] = { MDNode::get(V->getContext(), &V, 1),
|
||||
ConstantInt::get(Type::getInt64Ty(V->getContext()), Offset),
|
||||
VarInfo };
|
||||
return CallInst::Create(ValueFn, Args, Args+3, "", InsertAtEnd);
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -308,7 +308,8 @@ bool DIType::Verify() const {
|
|||
unsigned Tag = getTag();
|
||||
if (!isBasicType() && Tag != dwarf::DW_TAG_const_type &&
|
||||
Tag != dwarf::DW_TAG_volatile_type && Tag != dwarf::DW_TAG_pointer_type &&
|
||||
Tag != dwarf::DW_TAG_restrict_type && getFilename().empty())
|
||||
Tag != dwarf::DW_TAG_reference_type && Tag != dwarf::DW_TAG_restrict_type
|
||||
&& getFilename().empty())
|
||||
return false;
|
||||
return true;
|
||||
}
|
||||
|
|
@ -960,7 +961,6 @@ DICompositeType DIFactory::CreateCompositeType(unsigned Tag,
|
|||
return DICompositeType(Node);
|
||||
}
|
||||
|
||||
|
||||
/// CreateTemporaryType - Create a temporary forward-declared type.
|
||||
DIType DIFactory::CreateTemporaryType() {
|
||||
// Give the temporary MDNode a tag. It doesn't matter what tag we
|
||||
|
|
@ -972,6 +972,19 @@ DIType DIFactory::CreateTemporaryType() {
|
|||
return DIType(Node);
|
||||
}
|
||||
|
||||
/// CreateTemporaryType - Create a temporary forward-declared type.
|
||||
DIType DIFactory::CreateTemporaryType(DIFile F) {
|
||||
// Give the temporary MDNode a tag. It doesn't matter what tag we
|
||||
// use here as long as DIType accepts it.
|
||||
Value *Elts[] = {
|
||||
GetTagConstant(DW_TAG_base_type),
|
||||
F.getCompileUnit(),
|
||||
NULL,
|
||||
F
|
||||
};
|
||||
MDNode *Node = MDNode::getTemporary(VMContext, Elts, array_lengthof(Elts));
|
||||
return DIType(Node);
|
||||
}
|
||||
|
||||
/// CreateCompositeType - Create a composite type like array, struct, etc.
|
||||
DICompositeType DIFactory::CreateCompositeTypeEx(unsigned Tag,
|
||||
|
|
|
|||
Loading…
Reference in New Issue