f785676f2a
all of the features in the current working draft of the upcoming C++ standard, provisionally named C++1y. The code generator's performance is greatly increased, and the loop auto-vectorizer is now enabled at -Os and -O2 in addition to -O3. The PowerPC backend has made several major improvements to code generation quality and compile time, and the X86, SPARC, ARM32, Aarch64 and SystemZ backends have all seen major feature work. Release notes for llvm and clang can be found here: <http://llvm.org/releases/3.4/docs/ReleaseNotes.html> <http://llvm.org/releases/3.4/tools/clang/docs/ReleaseNotes.html> MFC after: 1 month
80 lines
2.3 KiB
C++
80 lines
2.3 KiB
C++
//===----- ABIInfo.h - ABI information access & encapsulation ---*- 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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#ifndef CLANG_CODEGEN_ABIINFO_H
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#define CLANG_CODEGEN_ABIINFO_H
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#include "clang/AST/Type.h"
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#include "llvm/IR/Type.h"
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#include "llvm/IR/CallingConv.h"
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namespace llvm {
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class Value;
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class LLVMContext;
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class DataLayout;
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}
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namespace clang {
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class ASTContext;
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class TargetInfo;
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namespace CodeGen {
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class CGCXXABI;
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class CGFunctionInfo;
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class CodeGenFunction;
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class CodeGenTypes;
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}
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// FIXME: All of this stuff should be part of the target interface
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// somehow. It is currently here because it is not clear how to factor
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// the targets to support this, since the Targets currently live in a
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// layer below types n'stuff.
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/// ABIInfo - Target specific hooks for defining how a type should be
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/// passed or returned from functions.
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class ABIInfo {
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public:
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CodeGen::CodeGenTypes &CGT;
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protected:
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llvm::CallingConv::ID RuntimeCC;
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public:
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ABIInfo(CodeGen::CodeGenTypes &cgt)
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: CGT(cgt), RuntimeCC(llvm::CallingConv::C) {}
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virtual ~ABIInfo();
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CodeGen::CGCXXABI &getCXXABI() const;
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ASTContext &getContext() const;
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llvm::LLVMContext &getVMContext() const;
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const llvm::DataLayout &getDataLayout() const;
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const TargetInfo &getTarget() const;
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/// Return the calling convention to use for system runtime
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/// functions.
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llvm::CallingConv::ID getRuntimeCC() const {
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return RuntimeCC;
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}
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virtual void computeInfo(CodeGen::CGFunctionInfo &FI) const = 0;
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/// EmitVAArg - Emit the target dependent code to load a value of
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/// \arg Ty from the va_list pointed to by \arg VAListAddr.
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// FIXME: This is a gaping layering violation if we wanted to drop
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// the ABI information any lower than CodeGen. Of course, for
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// VAArg handling it has to be at this level; there is no way to
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// abstract this out.
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virtual llvm::Value *EmitVAArg(llvm::Value *VAListAddr, QualType Ty,
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CodeGen::CodeGenFunction &CGF) const = 0;
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};
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} // end namespace clang
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#endif
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