mirror of
https://github.com/c64scene-ar/llvm-6502.git
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0b8c9a80f2
into their new header subdirectory: include/llvm/IR. This matches the directory structure of lib, and begins to correct a long standing point of file layout clutter in LLVM. There are still more header files to move here, but I wanted to handle them in separate commits to make tracking what files make sense at each layer easier. The only really questionable files here are the target intrinsic tablegen files. But that's a battle I'd rather not fight today. I've updated both CMake and Makefile build systems (I think, and my tests think, but I may have missed something). I've also re-sorted the includes throughout the project. I'll be committing updates to Clang, DragonEgg, and Polly momentarily. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171366 91177308-0d34-0410-b5e6-96231b3b80d8
60 lines
2.1 KiB
C++
60 lines
2.1 KiB
C++
//===-- IntrinsicLowering.h - Intrinsic Function Lowering -------*- 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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//
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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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//===----------------------------------------------------------------------===//
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#ifndef LLVM_CODEGEN_INTRINSICLOWERING_H
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#define LLVM_CODEGEN_INTRINSICLOWERING_H
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#include "llvm/IR/Intrinsics.h"
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namespace llvm {
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class CallInst;
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class Module;
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class DataLayout;
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class IntrinsicLowering {
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const DataLayout& TD;
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bool Warned;
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public:
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explicit IntrinsicLowering(const DataLayout &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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///
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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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///
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void LowerIntrinsicCall(CallInst *CI);
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/// LowerToByteSwap - Replace a call instruction into a call to bswap
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/// intrinsic. Return false if it has determined the call is not a
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/// simple integer bswap.
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static bool LowerToByteSwap(CallInst *CI);
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};
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}
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#endif
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