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//===-- 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;
Constant *SetjmpFCache;
Constant *LongjmpFCache;
Constant *AbortFCache;
Constant *MemcpyFCache;
Constant *MemmoveFCache;
Constant *MemsetFCache;
Constant *sqrtFCache;
Constant *sqrtDCache;
Constant *sqrtLDCache;
Constant *logFCache;
Constant *logDCache;
Constant *logLDCache;
Constant *log2FCache;
Constant *log2DCache;
Constant *log2LDCache;
Constant *log10FCache;
Constant *log10DCache;
Constant *log10LDCache;
Constant *expFCache;
Constant *expDCache;
Constant *expLDCache;
Constant *exp2FCache;
Constant *exp2DCache;
Constant *exp2LDCache;
Constant *powFCache;
Constant *powDCache;
Constant *powLDCache;
bool Warned;
public:
explicit IntrinsicLowering(const TargetData &td) :
TD(td), SetjmpFCache(0), LongjmpFCache(0), AbortFCache(0),
MemcpyFCache(0), MemmoveFCache(0), MemsetFCache(0), sqrtFCache(0),
sqrtDCache(0), sqrtLDCache(0), logFCache(0), logDCache(0), logLDCache(0),
log2FCache(0), log2DCache(0), log2LDCache(0), log10FCache(0),
log10DCache(0), log10LDCache(0), expFCache(0), expDCache(0),
expLDCache(0), exp2FCache(0), exp2DCache(0), exp2LDCache(0), powFCache(0),
powDCache(0), powLDCache(0), 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
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