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/**************************************************************************
*
* Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sub license, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
* IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
**************************************************************************/
/*
* Authors:
* Zack Rusin zack@tungstengraphics.com
*/
#ifndef INSTRUCTIONS_H
#define INSTRUCTIONS_H
#include <llvm/BasicBlock.h>
#include <llvm/Module.h>
#include <llvm/Value.h>
#include <llvm/Support/LLVMBuilder.h>
#include <map>
#include <stack>
namespace llvm {
class VectorType;
class Function;
}
class Storage;
class Instructions
{
public:
Instructions(llvm::Module *mod, llvm::Function *func, llvm::BasicBlock *block,
Storage *storage);
llvm::BasicBlock *currentBlock() const;
llvm::Value *abs(llvm::Value *in1);
llvm::Value *arl(llvm::Value *in1);
llvm::Value *add(llvm::Value *in1, llvm::Value *in2);
void beginLoop();
void bgnSub(unsigned);
void brk();
void cal(int label, llvm::Value *out, llvm::Value *in,
llvm::Value *cst, llvm::Value *tmp);
llvm::Value *cmp(llvm::Value *in1, llvm::Value *in2, llvm::Value *in3);
llvm::Value *cos(llvm::Value *in);
llvm::Value *cross(llvm::Value *in1, llvm::Value *in2);
llvm::Value *dp3(llvm::Value *in1, llvm::Value *in2);
llvm::Value *dp4(llvm::Value *in1, llvm::Value *in2);
llvm::Value *dph(llvm::Value *in1, llvm::Value *in2);
llvm::Value *dst(llvm::Value *in1, llvm::Value *in2);
void elseop();
void endif();
void endLoop();
void end();
void endSub();
llvm::Value *ex2(llvm::Value *in);
llvm::Value *floor(llvm::Value *in);
llvm::Value *frc(llvm::Value *in);
void ifop(llvm::Value *in);
llvm::Value *lerp(llvm::Value *in1, llvm::Value *in2,
llvm::Value *in3);
llvm::Value *lit(llvm::Value *in);
llvm::Value *lg2(llvm::Value *in);
llvm::Value *madd(llvm::Value *in1, llvm::Value *in2,
llvm::Value *in2);
llvm::Value *min(llvm::Value *in1, llvm::Value *in2);
llvm::Value *max(llvm::Value *in1, llvm::Value *in2);
llvm::Value *mul(llvm::Value *in1, llvm::Value *in2);
llvm::Value *pow(llvm::Value *in1, llvm::Value *in2);
llvm::Value *rcp(llvm::Value *in);
llvm::Value *rsq(llvm::Value *in);
llvm::Value *scs(llvm::Value *in);
llvm::Value *sge(llvm::Value *in1, llvm::Value *in2);
llvm::Value *sgt(llvm::Value *in1, llvm::Value *in2);
llvm::Value *slt(llvm::Value *in1, llvm::Value *in2);
llvm::Value *sub(llvm::Value *in1, llvm::Value *in2);
llvm::Value *trunc(llvm::Value *in);
void printVector(llvm::Value *val);
private:
const char *name(const char *prefix);
llvm::Value *callFAbs(llvm::Value *val);
llvm::Value *callFloor(llvm::Value *val);
llvm::Value *callFSqrt(llvm::Value *val);
llvm::Value *callFLog(llvm::Value *val);
llvm::Value *callPow(llvm::Value *val1, llvm::Value *val2);
llvm::Value *vectorFromVals(llvm::Value *x, llvm::Value *y,
llvm::Value *z, llvm::Value *w=0);
llvm::Value *constVector(float x, float y, float z, float w);
llvm::Function *declarePrintf();
llvm::Function *declareFunc(int label);
llvm::Function *findFunction(int label);
std::vector<llvm::Value*> extractVector(llvm::Value *vec);
private:
llvm::Module *m_mod;
llvm::Function *m_func;
char m_name[32];
llvm::LLVMFoldingBuilder m_builder;
int m_idx;
llvm::VectorType *m_floatVecType;
llvm::Function *m_llvmFSqrt;
llvm::Function *m_llvmFAbs;
llvm::Function *m_llvmPow;
llvm::Function *m_llvmFloor;
llvm::Function *m_llvmFlog;
llvm::Function *m_llvmLit;
llvm::Constant *m_fmtPtr;
std::stack<llvm::BasicBlock*> m_ifStack;
struct Loop {
llvm::BasicBlock *begin;
llvm::BasicBlock *end;
};
std::stack<Loop> m_loopStack;
std::map<int, llvm::Function*> m_functions;
Storage *m_storage;
};
#endif
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