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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 *input);
+ 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 *kilp(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 *sin(llvm::Value *in);
+ 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