Mercurial > hg > CbC > CbC_llvm
view include/llvm/CodeGen/IntrinsicLowering.h @ 95:afa8332a0e37 LLVM3.8
LLVM 3.8
author | Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp> |
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date | Tue, 13 Oct 2015 17:48:58 +0900 |
parents | 54457678186b |
children | 3a76565eade5 |
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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/IR/Intrinsics.h" namespace llvm { class CallInst; class Module; class DataLayout; class IntrinsicLowering { const DataLayout &DL; bool Warned; public: explicit IntrinsicLowering(const DataLayout &DL) : DL(DL), 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); /// LowerToByteSwap - Replace a call instruction into a call to bswap /// intrinsic. Return false if it has determined the call is not a /// simple integer bswap. static bool LowerToByteSwap(CallInst *CI); }; } #endif