forked from OSchip/llvm-project
105 lines
3.1 KiB
C++
105 lines
3.1 KiB
C++
//===----- CGCall.h - Encapsulate calling convention details ----*- 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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//
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// These classes wrap the information about a call or function
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// definition used to handle ABI compliancy.
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//
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//===----------------------------------------------------------------------===//
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#ifndef CLANG_CODEGEN_CGCALL_H
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#define CLANG_CODEGEN_CGCALL_H
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#include <llvm/ADT/FoldingSet.h>
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#include "clang/AST/Type.h"
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#include "CGValue.h"
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// FIXME: Restructure so we don't have to expose so much stuff.
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#include "ABIInfo.h"
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namespace llvm {
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struct AttributeWithIndex;
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class Function;
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class Type;
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class Value;
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template<typename T, unsigned> class SmallVector;
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}
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namespace clang {
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class ASTContext;
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class Decl;
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class FunctionDecl;
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class ObjCMethodDecl;
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class VarDecl;
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namespace CodeGen {
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typedef llvm::SmallVector<llvm::AttributeWithIndex, 8> AttributeListType;
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/// CallArgList - Type for representing both the value and type of
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/// arguments in a call.
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typedef llvm::SmallVector<std::pair<RValue, QualType>, 16> CallArgList;
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/// FunctionArgList - Type for representing both the decl and type
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/// of parameters to a function. The decl must be either a
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/// ParmVarDecl or ImplicitParamDecl.
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typedef llvm::SmallVector<std::pair<const VarDecl*, QualType>,
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16> FunctionArgList;
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/// CGFunctionInfo - Class to encapsulate the information about a
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/// function definition.
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class CGFunctionInfo : public llvm::FoldingSetNode {
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struct ArgInfo {
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QualType type;
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ABIArgInfo info;
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};
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unsigned NumArgs;
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ArgInfo *Args;
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public:
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typedef const ArgInfo *const_arg_iterator;
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typedef ArgInfo *arg_iterator;
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CGFunctionInfo(QualType ResTy,
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const llvm::SmallVector<QualType, 16> &ArgTys);
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~CGFunctionInfo() { delete[] Args; }
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const_arg_iterator arg_begin() const { return Args + 1; }
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const_arg_iterator arg_end() const { return Args + 1 + NumArgs; }
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arg_iterator arg_begin() { return Args + 1; }
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arg_iterator arg_end() { return Args + 1 + NumArgs; }
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unsigned arg_size() const { return NumArgs; }
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QualType getReturnType() const { return Args[0].type; }
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ABIArgInfo &getReturnInfo() { return Args[0].info; }
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const ABIArgInfo &getReturnInfo() const { return Args[0].info; }
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void Profile(llvm::FoldingSetNodeID &ID) {
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getReturnType().Profile(ID);
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for (arg_iterator it = arg_begin(), ie = arg_end(); it != ie; ++it)
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it->type.Profile(ID);
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}
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template<class Iterator>
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static void Profile(llvm::FoldingSetNodeID &ID,
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QualType ResTy,
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Iterator begin,
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Iterator end) {
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ResTy.Profile(ID);
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for (; begin != end; ++begin)
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begin->Profile(ID);
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}
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};
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} // end namespace CodeGen
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} // end namespace clang
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#endif
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