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