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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.
+ *
+ **************************************************************************/
+
+#include <cstdio>
+#include "instructionssoa.h"
+
+#include "storagesoa.h"
+
+#include "pipe/p_shader_tokens.h"
+#include "util/u_memory.h"
+
+#include <llvm/CallingConv.h>
+#include <llvm/Constants.h>
+#include <llvm/Module.h>
+#include <llvm/Function.h>
+#include <llvm/Instructions.h>
+#include <llvm/Transforms/Utils/Cloning.h>
+#include <llvm/Attributes.h>
+#include <llvm/Support/MemoryBuffer.h>
+#include <llvm/Bitcode/ReaderWriter.h>
+
+
+#include <iostream>
+
+
+/* disable some warnings. this file is autogenerated */
+#if defined(__GNUC__)
+#pragma GCC diagnostic ignored "-Wunused-variable"
+#endif
+using namespace llvm;
+#include "gallivmsoabuiltins.cpp"
+#if defined(__GNUC__)
+#pragma GCC diagnostic warning "-Wunused-variable"
+#endif
+
+InstructionsSoa::InstructionsSoa(llvm::Module *mod, llvm::Function *func,
+ llvm::BasicBlock *block, StorageSoa *storage)
+ : m_builder(block),
+ m_storage(storage),
+ m_idx(0)
+{
+ createFunctionMap();
+ createBuiltins();
+}
+
+const char * InstructionsSoa::name(const char *prefix) const
+{
+ ++m_idx;
+ snprintf(m_name, 32, "%s%d", prefix, m_idx);
+ return m_name;
+}
+
+llvm::Value * InstructionsSoa::vectorFromVals(llvm::Value *x, llvm::Value *y,
+ llvm::Value *z, llvm::Value *w)
+{
+ VectorType *vectorType = VectorType::get(Type::FloatTy, 4);
+ Constant *constVector = Constant::getNullValue(vectorType);
+ Value *res = m_builder.CreateInsertElement(constVector, x,
+ m_storage->constantInt(0),
+ name("vecx"));
+ res = m_builder.CreateInsertElement(res, y, m_storage->constantInt(1),
+ name("vecxy"));
+ res = m_builder.CreateInsertElement(res, z, m_storage->constantInt(2),
+ name("vecxyz"));
+ if (w)
+ res = m_builder.CreateInsertElement(res, w, m_storage->constantInt(3),
+ name("vecxyzw"));
+ return res;
+}
+
+void InstructionsSoa::end()
+{
+ m_builder.CreateRetVoid();
+}
+
+std::vector<llvm::Value*> InstructionsSoa::extractVector(llvm::Value *vector)
+{
+ std::vector<llvm::Value*> res(4);
+ res[0] = m_builder.CreateExtractElement(vector,
+ m_storage->constantInt(0),
+ name("extract1X"));
+ res[1] = m_builder.CreateExtractElement(vector,
+ m_storage->constantInt(1),
+ name("extract2X"));
+ res[2] = m_builder.CreateExtractElement(vector,
+ m_storage->constantInt(2),
+ name("extract3X"));
+ res[3] = m_builder.CreateExtractElement(vector,
+ m_storage->constantInt(3),
+ name("extract4X"));
+
+ return res;
+}
+
+llvm::IRBuilder<>* InstructionsSoa::getIRBuilder()
+{
+ return &m_builder;
+}
+
+void InstructionsSoa::createFunctionMap()
+{
+ m_functionsMap[TGSI_OPCODE_ABS] = "abs";
+ m_functionsMap[TGSI_OPCODE_DP3] = "dp3";
+ m_functionsMap[TGSI_OPCODE_DP4] = "dp4";
+ m_functionsMap[TGSI_OPCODE_MIN] = "min";
+ m_functionsMap[TGSI_OPCODE_MAX] = "max";
+ m_functionsMap[TGSI_OPCODE_POW] = "pow";
+ m_functionsMap[TGSI_OPCODE_LIT] = "lit";
+ m_functionsMap[TGSI_OPCODE_RSQ] = "rsq";
+ m_functionsMap[TGSI_OPCODE_SLT] = "slt";
+}
+
+void InstructionsSoa::createDependencies()
+{
+ {
+ std::vector<std::string> powDeps(2);
+ powDeps[0] = "powf";
+ powDeps[1] = "powvec";
+ m_builtinDependencies["pow"] = powDeps;
+ }
+ {
+ std::vector<std::string> absDeps(2);
+ absDeps[0] = "fabsf";
+ absDeps[1] = "absvec";
+ m_builtinDependencies["abs"] = absDeps;
+ }
+ {
+ std::vector<std::string> maxDeps(1);
+ maxDeps[0] = "maxvec";
+ m_builtinDependencies["max"] = maxDeps;
+ }
+ {
+ std::vector<std::string> minDeps(1);
+ minDeps[0] = "minvec";
+ m_builtinDependencies["min"] = minDeps;
+ }
+ {
+ std::vector<std::string> litDeps(4);
+ litDeps[0] = "minvec";
+ litDeps[1] = "maxvec";
+ litDeps[2] = "powf";
+ litDeps[3] = "powvec";
+ m_builtinDependencies["lit"] = litDeps;
+ }
+ {
+ std::vector<std::string> rsqDeps(4);
+ rsqDeps[0] = "sqrtf";
+ rsqDeps[1] = "sqrtvec";
+ rsqDeps[2] = "fabsf";
+ rsqDeps[3] = "absvec";
+ m_builtinDependencies["rsq"] = rsqDeps;
+ }
+}
+
+llvm::Function * InstructionsSoa::function(int op)
+{
+ if (m_functions.find(op) != m_functions.end())
+ return m_functions[op];
+
+ std::string name = m_functionsMap[op];
+
+ std::cout <<"For op = "<<op<<", func is '"<<name<<"'"<<std::endl;
+
+ std::vector<std::string> deps = m_builtinDependencies[name];
+ for (unsigned int i = 0; i < deps.size(); ++i) {
+ llvm::Function *func = m_builtins->getFunction(deps[i]);
+ std::cout <<"\tinjecting dep = '"<<func->getName()<<"'"<<std::endl;
+ injectFunction(func);
+ }
+
+ llvm::Function *originalFunc = m_builtins->getFunction(name);
+ injectFunction(originalFunc, op);
+ return m_functions[op];
+}
+
+llvm::Module * InstructionsSoa::currentModule() const
+{
+ BasicBlock *block = m_builder.GetInsertBlock();
+ if (!block || !block->getParent())
+ return 0;
+
+ return block->getParent()->getParent();
+}
+
+void InstructionsSoa::createBuiltins()
+{
+ std::string ErrMsg;
+ MemoryBuffer *buffer = MemoryBuffer::getMemBuffer(
+ (const char*)&soabuiltins_data[0],
+ (const char*)&soabuiltins_data[Elements(soabuiltins_data) - 1]);
+ m_builtins = ParseBitcodeFile(buffer, &ErrMsg);
+ std::cout<<"Builtins created at "<<m_builtins<<" ("<<ErrMsg<<")"<<std::endl;
+ assert(m_builtins);
+ createDependencies();
+}
+
+
+std::vector<llvm::Value*> InstructionsSoa::abs(const std::vector<llvm::Value*> in1)
+{
+ llvm::Function *func = function(TGSI_OPCODE_ABS);
+ return callBuiltin(func, in1);
+}
+
+std::vector<llvm::Value*> InstructionsSoa::add(const std::vector<llvm::Value*> in1,
+ const std::vector<llvm::Value*> in2)
+{
+ std::vector<llvm::Value*> res(4);
+
+ res[0] = m_builder.CreateAdd(in1[0], in2[0], name("addx"));
+ res[1] = m_builder.CreateAdd(in1[1], in2[1], name("addy"));
+ res[2] = m_builder.CreateAdd(in1[2], in2[2], name("addz"));
+ res[3] = m_builder.CreateAdd(in1[3], in2[3], name("addw"));
+
+ return res;
+}
+
+std::vector<llvm::Value*> InstructionsSoa::arl(const std::vector<llvm::Value*> in)
+{
+ std::vector<llvm::Value*> res(4);
+
+ //Extract x's
+ llvm::Value *x1 = m_builder.CreateExtractElement(in[0],
+ m_storage->constantInt(0),
+ name("extractX"));
+ //cast it to an unsigned int
+ x1 = m_builder.CreateFPToUI(x1, IntegerType::get(32), name("x1IntCast"));
+
+ res[0] = x1;//vectorFromVals(x1, x2, x3, x4);
+ //only x is valid. the others shouldn't be necessary
+ /*
+ res[1] = Constant::getNullValue(m_floatVecType);
+ res[2] = Constant::getNullValue(m_floatVecType);
+ res[3] = Constant::getNullValue(m_floatVecType);
+ */
+
+ return res;
+}
+
+std::vector<llvm::Value*> InstructionsSoa::dp3(const std::vector<llvm::Value*> in1,
+ const std::vector<llvm::Value*> in2)
+{
+ llvm::Function *func = function(TGSI_OPCODE_DP3);
+ return callBuiltin(func, in1, in2);
+}
+
+std::vector<llvm::Value*> InstructionsSoa::lit(const std::vector<llvm::Value*> in)
+{
+ llvm::Function *func = function(TGSI_OPCODE_LIT);
+ return callBuiltin(func, in);
+}
+
+std::vector<llvm::Value*> InstructionsSoa::madd(const std::vector<llvm::Value*> in1,
+ const std::vector<llvm::Value*> in2,
+ const std::vector<llvm::Value*> in3)
+{
+ std::vector<llvm::Value*> res = mul(in1, in2);
+ return add(res, in3);
+}
+
+std::vector<llvm::Value*> InstructionsSoa::max(const std::vector<llvm::Value*> in1,
+ const std::vector<llvm::Value*> in2)
+{
+ llvm::Function *func = function(TGSI_OPCODE_MAX);
+ return callBuiltin(func, in1, in2);
+}
+
+std::vector<llvm::Value*> InstructionsSoa::min(const std::vector<llvm::Value*> in1,
+ const std::vector<llvm::Value*> in2)
+{
+ llvm::Function *func = function(TGSI_OPCODE_MIN);
+ return callBuiltin(func, in1, in2);
+}
+
+std::vector<llvm::Value*> InstructionsSoa::mul(const std::vector<llvm::Value*> in1,
+ const std::vector<llvm::Value*> in2)
+{
+ std::vector<llvm::Value*> res(4);
+
+ res[0] = m_builder.CreateMul(in1[0], in2[0], name("mulx"));
+ res[1] = m_builder.CreateMul(in1[1], in2[1], name("muly"));
+ res[2] = m_builder.CreateMul(in1[2], in2[2], name("mulz"));
+ res[3] = m_builder.CreateMul(in1[3], in2[3], name("mulw"));
+
+ return res;
+}
+
+std::vector<llvm::Value*> InstructionsSoa::pow(const std::vector<llvm::Value*> in1,
+ const std::vector<llvm::Value*> in2)
+{
+ llvm::Function *func = function(TGSI_OPCODE_POW);
+ return callBuiltin(func, in1, in2);
+}
+
+std::vector<llvm::Value*> InstructionsSoa::rsq(const std::vector<llvm::Value*> in)
+{
+ llvm::Function *func = function(TGSI_OPCODE_RSQ);
+ return callBuiltin(func, in);
+}
+
+std::vector<llvm::Value*> InstructionsSoa::slt(const std::vector<llvm::Value*> in1,
+ const std::vector<llvm::Value*> in2)
+{
+ llvm::Function *func = function(TGSI_OPCODE_SLT);
+ return callBuiltin(func, in1, in2);
+}
+
+std::vector<llvm::Value*> InstructionsSoa::sub(const std::vector<llvm::Value*> in1,
+ const std::vector<llvm::Value*> in2)
+{
+ std::vector<llvm::Value*> res(4);
+
+ res[0] = m_builder.CreateSub(in1[0], in2[0], name("subx"));
+ res[1] = m_builder.CreateSub(in1[1], in2[1], name("suby"));
+ res[2] = m_builder.CreateSub(in1[2], in2[2], name("subz"));
+ res[3] = m_builder.CreateSub(in1[3], in2[3], name("subw"));
+
+ return res;
+}
+
+void checkFunction(Function *func)
+{
+ for (Function::const_iterator BI = func->begin(), BE = func->end();
+ BI != BE; ++BI) {
+ const BasicBlock &BB = *BI;
+ for (BasicBlock::const_iterator II = BB.begin(), IE = BB.end();
+ II != IE; ++II) {
+ const Instruction &I = *II;
+ std::cout<< "Instr = "<<I;
+ for (unsigned op = 0, E = I.getNumOperands(); op != E; ++op) {
+ const Value *Op = I.getOperand(op);
+ std::cout<< "\top = "<<Op<<"("<<op<<")"<<std::endl;
+ //I->setOperand(op, V);
+ }
+ }
+ }
+}
+
+llvm::Value * InstructionsSoa::allocaTemp()
+{
+ VectorType *vector = VectorType::get(Type::FloatTy, 4);
+ ArrayType *vecArray = ArrayType::get(vector, 4);
+ AllocaInst *alloca = new AllocaInst(vecArray, name("tmpRes"),
+ m_builder.GetInsertBlock());
+
+ std::vector<Value*> indices;
+ indices.push_back(m_storage->constantInt(0));
+ indices.push_back(m_storage->constantInt(0));
+ GetElementPtrInst *getElem = GetElementPtrInst::Create(alloca,
+ indices.begin(),
+ indices.end(),
+ name("allocaPtr"),
+ m_builder.GetInsertBlock());
+ return getElem;
+}
+
+std::vector<llvm::Value*> InstructionsSoa::allocaToResult(llvm::Value *allocaPtr)
+{
+ GetElementPtrInst *xElemPtr = GetElementPtrInst::Create(allocaPtr,
+ m_storage->constantInt(0),
+ name("xPtr"),
+ m_builder.GetInsertBlock());
+ GetElementPtrInst *yElemPtr = GetElementPtrInst::Create(allocaPtr,
+ m_storage->constantInt(1),
+ name("yPtr"),
+ m_builder.GetInsertBlock());
+ GetElementPtrInst *zElemPtr = GetElementPtrInst::Create(allocaPtr,
+ m_storage->constantInt(2),
+ name("zPtr"),
+ m_builder.GetInsertBlock());
+ GetElementPtrInst *wElemPtr = GetElementPtrInst::Create(allocaPtr,
+ m_storage->constantInt(3),
+ name("wPtr"),
+ m_builder.GetInsertBlock());
+
+ std::vector<llvm::Value*> res(4);
+ res[0] = new LoadInst(xElemPtr, name("xRes"), false, m_builder.GetInsertBlock());
+ res[1] = new LoadInst(yElemPtr, name("yRes"), false, m_builder.GetInsertBlock());
+ res[2] = new LoadInst(zElemPtr, name("zRes"), false, m_builder.GetInsertBlock());
+ res[3] = new LoadInst(wElemPtr, name("wRes"), false, m_builder.GetInsertBlock());
+
+ return res;
+}
+
+std::vector<llvm::Value*> InstructionsSoa::dp4(const std::vector<llvm::Value*> in1,
+ const std::vector<llvm::Value*> in2)
+{
+ llvm::Function *func = function(TGSI_OPCODE_DP4);
+ return callBuiltin(func, in1, in2);
+}
+
+std::vector<Value*> InstructionsSoa::callBuiltin(llvm::Function *func, const std::vector<llvm::Value*> in1)
+{
+ std::vector<Value*> params;
+
+ llvm::Value *allocaPtr = allocaTemp();
+ params.push_back(allocaPtr);
+ params.push_back(in1[0]);
+ params.push_back(in1[1]);
+ params.push_back(in1[2]);
+ params.push_back(in1[3]);
+ CallInst *call = m_builder.CreateCall(func, params.begin(), params.end());
+ call->setCallingConv(CallingConv::C);
+ call->setTailCall(false);
+
+ return allocaToResult(allocaPtr);
+}
+
+std::vector<Value*> InstructionsSoa::callBuiltin(llvm::Function *func, const std::vector<llvm::Value*> in1,
+ const std::vector<llvm::Value*> in2)
+{
+ std::vector<Value*> params;
+
+ llvm::Value *allocaPtr = allocaTemp();
+ params.push_back(allocaPtr);
+ params.push_back(in1[0]);
+ params.push_back(in1[1]);
+ params.push_back(in1[2]);
+ params.push_back(in1[3]);
+ params.push_back(in2[0]);
+ params.push_back(in2[1]);
+ params.push_back(in2[2]);
+ params.push_back(in2[3]);
+ CallInst *call = m_builder.CreateCall(func, params.begin(), params.end());
+ call->setCallingConv(CallingConv::C);
+ call->setTailCall(false);
+
+ return allocaToResult(allocaPtr);
+}
+
+std::vector<Value*> InstructionsSoa::callBuiltin(llvm::Function *func, const std::vector<llvm::Value*> in1,
+ const std::vector<llvm::Value*> in2,
+ const std::vector<llvm::Value*> in3)
+{
+ std::vector<Value*> params;
+
+ llvm::Value *allocaPtr = allocaTemp();
+ params.push_back(allocaPtr);
+ params.push_back(in1[0]);
+ params.push_back(in1[1]);
+ params.push_back(in1[2]);
+ params.push_back(in1[3]);
+ params.push_back(in2[0]);
+ params.push_back(in2[1]);
+ params.push_back(in2[2]);
+ params.push_back(in2[3]);
+ params.push_back(in3[0]);
+ params.push_back(in3[1]);
+ params.push_back(in3[2]);
+ params.push_back(in3[3]);
+ CallInst *call = m_builder.CreateCall(func, params.begin(), params.end());
+ call->setCallingConv(CallingConv::C);
+ call->setTailCall(false);
+
+ return allocaToResult(allocaPtr);
+}
+
+void InstructionsSoa::injectFunction(llvm::Function *originalFunc, int op)
+{
+ assert(originalFunc);
+ std::cout << "injecting function originalFunc " <<originalFunc->getName() <<std::endl;
+ if (op != TGSI_OPCODE_LAST) {
+ /* in this case it's possible the function has been already
+ * injected as part of the dependency chain, which gets
+ * injected below */
+ llvm::Function *func = currentModule()->getFunction(originalFunc->getName());
+ if (func) {
+ m_functions[op] = func;
+ return;
+ }
+ }
+ llvm::Function *func = 0;
+ if (originalFunc->isDeclaration()) {
+ func = Function::Create(originalFunc->getFunctionType(), GlobalValue::ExternalLinkage,
+ originalFunc->getName(), currentModule());
+ func->setCallingConv(CallingConv::C);
+ const AttrListPtr pal;
+ func->setAttributes(pal);
+ currentModule()->dump();
+ } else {
+ DenseMap<const Value*, Value *> val;
+ val[m_builtins->getFunction("fabsf")] = currentModule()->getFunction("fabsf");
+ val[m_builtins->getFunction("powf")] = currentModule()->getFunction("powf");
+ val[m_builtins->getFunction("sqrtf")] = currentModule()->getFunction("sqrtf");
+ func = CloneFunction(originalFunc, val);
+#if 0
+ std::cout <<" replacing "<<m_builtins->getFunction("powf")
+ <<", with " <<currentModule()->getFunction("powf")<<std::endl;
+ std::cout<<"1111-------------------------------"<<std::endl;
+ checkFunction(originalFunc);
+ std::cout<<"2222-------------------------------"<<std::endl;
+ checkFunction(func);
+ std::cout <<"XXXX = " <<val[m_builtins->getFunction("powf")]<<std::endl;
+#endif
+ currentModule()->getFunctionList().push_back(func);
+ }
+ if (op != TGSI_OPCODE_LAST) {
+ m_functions[op] = func;
+ }
+}
+
+