llvm-6502/include/llvm/CodeGen/IntrinsicLowering.h
Owen Anderson b41b5e0b2d Get rid of these cache variables, which are a holdover from the days when
we had multiple type planes and these lookups were expensive.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74319 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-26 20:33:47 +00:00

55 lines
1.9 KiB
C++

//===-- IntrinsicLowering.h - Intrinsic Function Lowering -------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file defines the IntrinsicLowering interface. This interface allows
// addition of domain-specific or front-end specific intrinsics to LLVM without
// having to modify all of the C backend or interpreter.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_CODEGEN_INTRINSICLOWERING_H
#define LLVM_CODEGEN_INTRINSICLOWERING_H
#include "llvm/Intrinsics.h"
namespace llvm {
class CallInst;
class Module;
class TargetData;
class IntrinsicLowering {
const TargetData& TD;
bool Warned;
public:
explicit IntrinsicLowering(const TargetData &td) :
TD(td), Warned(false) {}
/// AddPrototypes - This method, if called, causes all of the prototypes
/// that might be needed by an intrinsic lowering implementation to be
/// inserted into the module specified.
void AddPrototypes(Module &M);
/// LowerIntrinsicCall - This method replaces a call with the LLVM function
/// which should be used to implement the specified intrinsic function call.
/// If an intrinsic function must be implemented by the code generator
/// (such as va_start), this function should print a message and abort.
///
/// Otherwise, if an intrinsic function call can be lowered, the code to
/// implement it (often a call to a non-intrinsic function) is inserted
/// _after_ the call instruction and the call is deleted. The caller must
/// be capable of handling this kind of change.
///
void LowerIntrinsicCall(CallInst *CI);
};
}
#endif