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Diffstat (limited to 'src/gallium/auxiliary/gallivm/instructions.cpp')
| -rw-r--r-- | src/gallium/auxiliary/gallivm/instructions.cpp | 902 |
1 files changed, 902 insertions, 0 deletions
diff --git a/src/gallium/auxiliary/gallivm/instructions.cpp b/src/gallium/auxiliary/gallivm/instructions.cpp new file mode 100644 index 00000000000..a82dc30306d --- /dev/null +++ b/src/gallium/auxiliary/gallivm/instructions.cpp @@ -0,0 +1,902 @@ +/************************************************************************** + * + * 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 [email protected] + */ +#ifdef MESA_LLVM + +#include "instructions.h" + +#include "storage.h" + +#include "util/u_memory.h" + +#include <llvm/CallingConv.h> +#include <llvm/Constants.h> +#include <llvm/DerivedTypes.h> +#include <llvm/Function.h> +#include <llvm/InstrTypes.h> +#include <llvm/Instructions.h> +#include <llvm/ParameterAttributes.h> +#include <llvm/Support/MemoryBuffer.h> +#include <llvm/Bitcode/ReaderWriter.h> + +#include <sstream> +#include <fstream> +#include <iostream> + +using namespace llvm; + +#include "gallivm_builtins.cpp" + +#if 0 +llvm::Value *arrayFromChannels(std::vector<llvm::Value*> &vals) +{ + VectorType *vectorType = VectorType::get(Type::FloatTy, 4); + ArrayType *vectorArray = ArrayType::get(vectorType, 4); +} +#endif + +static inline std::string createFuncName(int label) +{ + std::ostringstream stream; + stream << "function"; + stream << label; + return stream.str(); +} + +Instructions::Instructions(llvm::Module *mod, llvm::Function *func, llvm::BasicBlock *block, + Storage *storage) + : m_mod(mod), m_func(func), m_builder(block), m_idx(0), + m_storage(storage) +{ + m_floatVecType = VectorType::get(Type::FloatTy, 4); + + m_llvmFSqrt = 0; + m_llvmFAbs = 0; + m_llvmPow = 0; + m_llvmFloor = 0; + m_llvmFlog = 0; + m_llvmLit = 0; + m_fmtPtr = 0; + + MemoryBuffer *buffer = MemoryBuffer::getMemBuffer( + (const char*)&llvm_builtins_data[0], + (const char*)&llvm_builtins_data[Elements(llvm_builtins_data)-1]); + m_mod = ParseBitcodeFile(buffer); +} + +llvm::Value * Instructions::add(llvm::Value *in1, llvm::Value *in2) +{ + return m_builder.CreateAdd(in1, in2, name("add")); +} + +llvm::Value * Instructions::madd(llvm::Value *in1, llvm::Value *in2, + llvm::Value *in3) +{ + Value *mulRes = mul(in1, in2); + return add(mulRes, in3); +} + +llvm::Value * Instructions::mul(llvm::Value *in1, llvm::Value *in2) +{ + return m_builder.CreateMul(in1, in2, name("mul")); +} + +const char * Instructions::name(const char *prefix) +{ + ++m_idx; + snprintf(m_name, 32, "%s%d", prefix, m_idx); + return m_name; +} + +llvm::Value * Instructions::dp3(llvm::Value *in1, llvm::Value *in2) +{ + Value *mulRes = mul(in1, in2); + Value *x = m_builder.CreateExtractElement(mulRes, + m_storage->constantInt(0), + name("extractx")); + Value *y = m_builder.CreateExtractElement(mulRes, + m_storage->constantInt(1), + name("extracty")); + Value *z = m_builder.CreateExtractElement(mulRes, + m_storage->constantInt(2), + name("extractz")); + Value *xy = m_builder.CreateAdd(x, y,name("xy")); + Value *dot3 = m_builder.CreateAdd(xy, z, name("dot3")); + return vectorFromVals(dot3, dot3, dot3, dot3); +} + +llvm::Value *Instructions::callFSqrt(llvm::Value *val) +{ + if (!m_llvmFSqrt) { + // predeclare the intrinsic + std::vector<const Type*> fsqrtArgs; + fsqrtArgs.push_back(Type::FloatTy); + PAListPtr fsqrtPal; + FunctionType* fsqrtType = FunctionType::get( + /*Result=*/Type::FloatTy, + /*Params=*/fsqrtArgs, + /*isVarArg=*/false); + m_llvmFSqrt = Function::Create( + /*Type=*/fsqrtType, + /*Linkage=*/GlobalValue::ExternalLinkage, + /*Name=*/"llvm.sqrt.f32", m_mod); + m_llvmFSqrt->setCallingConv(CallingConv::C); + m_llvmFSqrt->setParamAttrs(fsqrtPal); + } + CallInst *call = m_builder.CreateCall(m_llvmFSqrt, val, + name("sqrt")); + call->setCallingConv(CallingConv::C); + call->setTailCall(false); + return call; +} + +llvm::Value * Instructions::rsq(llvm::Value *in1) +{ + Value *x = m_builder.CreateExtractElement(in1, + m_storage->constantInt(0), + name("extractx")); + Value *abs = callFAbs(x); + Value *sqrt = callFSqrt(abs); + + Value *rsqrt = m_builder.CreateFDiv(ConstantFP::get(APFloat(1.f)), + sqrt, + name("rsqrt")); + return vectorFromVals(rsqrt, rsqrt, rsqrt, rsqrt); +} + +llvm::Value * Instructions::vectorFromVals(llvm::Value *x, llvm::Value *y, + llvm::Value *z, llvm::Value *w) +{ + Constant *const_vec = Constant::getNullValue(m_floatVecType); + Value *res = m_builder.CreateInsertElement(const_vec, 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; +} + +llvm::Value *Instructions::callFAbs(llvm::Value *val) +{ + if (!m_llvmFAbs) { + // predeclare the intrinsic + std::vector<const Type*> fabsArgs; + fabsArgs.push_back(Type::FloatTy); + PAListPtr fabsPal; + FunctionType* fabsType = FunctionType::get( + /*Result=*/Type::FloatTy, + /*Params=*/fabsArgs, + /*isVarArg=*/false); + m_llvmFAbs = Function::Create( + /*Type=*/fabsType, + /*Linkage=*/GlobalValue::ExternalLinkage, + /*Name=*/"fabs", m_mod); + m_llvmFAbs->setCallingConv(CallingConv::C); + m_llvmFAbs->setParamAttrs(fabsPal); + } + CallInst *call = m_builder.CreateCall(m_llvmFAbs, val, + name("fabs")); + call->setCallingConv(CallingConv::C); + call->setTailCall(false); + return call; +} + +llvm::Value * Instructions::lit(llvm::Value *in) +{ + if (!m_llvmLit) { + m_llvmLit = m_mod->getFunction("lit"); + } + CallInst *call = m_builder.CreateCall(m_llvmLit, in, name("litres")); + call->setCallingConv(CallingConv::C); + call->setTailCall(false); + return call; +} + +llvm::Value * Instructions::sub(llvm::Value *in1, llvm::Value *in2) +{ + Value *res = m_builder.CreateSub(in1, in2, name("sub")); + return res; +} + +llvm::Value * Instructions::callPow(llvm::Value *val1, llvm::Value *val2) +{ + if (!m_llvmPow) { + // predeclare the intrinsic + std::vector<const Type*> powArgs; + powArgs.push_back(Type::FloatTy); + powArgs.push_back(Type::FloatTy); + PAListPtr powPal; + FunctionType* powType = FunctionType::get( + /*Result=*/Type::FloatTy, + /*Params=*/powArgs, + /*isVarArg=*/false); + m_llvmPow = Function::Create( + /*Type=*/powType, + /*Linkage=*/GlobalValue::ExternalLinkage, + /*Name=*/"llvm.pow.f32", m_mod); + m_llvmPow->setCallingConv(CallingConv::C); + m_llvmPow->setParamAttrs(powPal); + } + std::vector<Value*> params; + params.push_back(val1); + params.push_back(val2); + CallInst *call = m_builder.CreateCall(m_llvmPow, params.begin(), params.end(), + name("pow")); + call->setCallingConv(CallingConv::C); + call->setTailCall(false); + return call; +} + +llvm::Value * Instructions::pow(llvm::Value *in1, llvm::Value *in2) +{ + Value *x1 = m_builder.CreateExtractElement(in1, + m_storage->constantInt(0), + name("x1")); + Value *x2 = m_builder.CreateExtractElement(in2, + m_storage->constantInt(0), + name("x2")); + llvm::Value *val = callPow(x1, x2); + return vectorFromVals(val, val, val, val); +} + +llvm::Value * Instructions::rcp(llvm::Value *in1) +{ + Value *x1 = m_builder.CreateExtractElement(in1, + m_storage->constantInt(0), + name("x1")); + Value *res = m_builder.CreateFDiv(ConstantFP::get(APFloat(1.f)), + x1, name("rcp")); + return vectorFromVals(res, res, res, res); +} + +llvm::Value * Instructions::dp4(llvm::Value *in1, llvm::Value *in2) +{ + Value *mulRes = mul(in1, in2); + std::vector<llvm::Value*> vec = extractVector(mulRes); + Value *xy = m_builder.CreateAdd(vec[0], vec[1], name("xy")); + Value *xyz = m_builder.CreateAdd(xy, vec[2], name("xyz")); + Value *dot4 = m_builder.CreateAdd(xyz, vec[3], name("dot4")); + return vectorFromVals(dot4, dot4, dot4, dot4); +} + +llvm::Value * Instructions::dph(llvm::Value *in1, llvm::Value *in2) +{ + Value *mulRes = mul(in1, in2); + std::vector<llvm::Value*> vec1 = extractVector(mulRes); + Value *xy = m_builder.CreateAdd(vec1[0], vec1[1], name("xy")); + Value *xyz = m_builder.CreateAdd(xy, vec1[2], name("xyz")); + Value *dph = m_builder.CreateAdd(xyz, vec1[3], name("dph")); + return vectorFromVals(dph, dph, dph, dph); +} + +llvm::Value * Instructions::dst(llvm::Value *in1, llvm::Value *in2) +{ + Value *y1 = m_builder.CreateExtractElement(in1, + m_storage->constantInt(1), + name("y1")); + Value *z = m_builder.CreateExtractElement(in1, + m_storage->constantInt(2), + name("z")); + Value *y2 = m_builder.CreateExtractElement(in2, + m_storage->constantInt(1), + name("y2")); + Value *w = m_builder.CreateExtractElement(in2, + m_storage->constantInt(3), + name("w")); + Value *ry = m_builder.CreateMul(y1, y2, name("tyuy")); + return vectorFromVals(ConstantFP::get(APFloat(1.f)), + ry, z, w); +} + +llvm::Value * Instructions::ex2(llvm::Value *in) +{ + llvm::Value *val = callPow(ConstantFP::get(APFloat(2.f)), + m_builder.CreateExtractElement( + in, m_storage->constantInt(0), + name("x1"))); + return vectorFromVals(val, val, val, val); +} + +llvm::Value * Instructions::callFloor(llvm::Value *val) +{ + if (!m_llvmFloor) { + // predeclare the intrinsic + std::vector<const Type*> floorArgs; + floorArgs.push_back(Type::FloatTy); + PAListPtr floorPal; + FunctionType* floorType = FunctionType::get( + /*Result=*/Type::FloatTy, + /*Params=*/floorArgs, + /*isVarArg=*/false); + m_llvmFloor = Function::Create( + /*Type=*/floorType, + /*Linkage=*/GlobalValue::ExternalLinkage, + /*Name=*/"floorf", m_mod); + m_llvmFloor->setCallingConv(CallingConv::C); + m_llvmFloor->setParamAttrs(floorPal); + } + CallInst *call = m_builder.CreateCall(m_llvmFloor, val, + name("floorf")); + call->setCallingConv(CallingConv::C); + call->setTailCall(false); + return call; +} + +llvm::Value * Instructions::floor(llvm::Value *in) +{ + std::vector<llvm::Value*> vec = extractVector(in); + return vectorFromVals(callFloor(vec[0]), callFloor(vec[1]), + callFloor(vec[2]), callFloor(vec[3])); +} + +llvm::Value * Instructions::arl(llvm::Value *in) +{ + return floor(in); +} + +llvm::Value * Instructions::frc(llvm::Value *in) +{ + llvm::Value *flr = floor(in); + return sub(in, flr); +} + +llvm::Value * Instructions::callFLog(llvm::Value *val) +{ + if (!m_llvmFlog) { + // predeclare the intrinsic + std::vector<const Type*> flogArgs; + flogArgs.push_back(Type::FloatTy); + PAListPtr flogPal; + FunctionType* flogType = FunctionType::get( + /*Result=*/Type::FloatTy, + /*Params=*/flogArgs, + /*isVarArg=*/false); + m_llvmFlog = Function::Create( + /*Type=*/flogType, + /*Linkage=*/GlobalValue::ExternalLinkage, + /*Name=*/"logf", m_mod); + m_llvmFlog->setCallingConv(CallingConv::C); + m_llvmFlog->setParamAttrs(flogPal); + } + CallInst *call = m_builder.CreateCall(m_llvmFlog, val, + name("logf")); + call->setCallingConv(CallingConv::C); + call->setTailCall(false); + return call; +} + +llvm::Value * Instructions::lg2(llvm::Value *in) +{ + std::vector<llvm::Value*> vec = extractVector(in); + llvm::Value *const_vec = constVector(1.442695f, 1.442695f, + 1.442695f, 1.442695f); + return mul(vectorFromVals(callFLog(vec[0]), callFLog(vec[1]), + callFLog(vec[2]), callFLog(vec[3])), const_vec); +} + +llvm::Value * Instructions::min(llvm::Value *in1, llvm::Value *in2) +{ + std::vector<llvm::Value*> vec1 = extractVector(in1); + std::vector<llvm::Value*> vec2 = extractVector(in2); + + Value *xcmp = m_builder.CreateFCmpOLT(vec1[0], vec2[0], name("xcmp")); + Value *selx = m_builder.CreateSelect(xcmp, vec1[0], vec2[0], + name("selx")); + + Value *ycmp = m_builder.CreateFCmpOLT(vec1[1], vec2[1], name("ycmp")); + Value *sely = m_builder.CreateSelect(ycmp, vec1[1], vec2[1], + name("sely")); + + Value *zcmp = m_builder.CreateFCmpOLT(vec1[2], vec2[2], name("zcmp")); + Value *selz = m_builder.CreateSelect(zcmp, vec1[2], vec2[2], + name("selz")); + + Value *wcmp = m_builder.CreateFCmpOLT(vec1[3], vec2[3], name("wcmp")); + Value *selw = m_builder.CreateSelect(wcmp, vec1[3], vec2[3], + name("selw")); + + return vectorFromVals(selx, sely, selz, selw); +} + +llvm::Value * Instructions::max(llvm::Value *in1, llvm::Value *in2) +{ + std::vector<llvm::Value*> vec1 = extractVector(in1); + std::vector<llvm::Value*> vec2 = extractVector(in2); + + Value *xcmp = m_builder.CreateFCmpOGT(vec1[0], vec2[0], + name("xcmp")); + Value *selx = m_builder.CreateSelect(xcmp, vec1[0], vec2[0], + name("selx")); + + Value *ycmp = m_builder.CreateFCmpOGT(vec1[1], vec2[1], + name("ycmp")); + Value *sely = m_builder.CreateSelect(ycmp, vec1[1], vec2[1], + name("sely")); + + Value *zcmp = m_builder.CreateFCmpOGT(vec1[2], vec2[2], + name("zcmp")); + Value *selz = m_builder.CreateSelect(zcmp, vec1[2], vec2[2], + name("selz")); + + Value *wcmp = m_builder.CreateFCmpOGT(vec1[3], vec2[3], + name("wcmp")); + Value *selw = m_builder.CreateSelect(wcmp, vec1[3], vec2[3], + name("selw")); + + return vectorFromVals(selx, sely, selz, selw); +} + +void Instructions::printVector(llvm::Value *val) +{ + static const char *frmt = "Vector is [%f, %f, %f, %f]\x0A"; + + if (!m_fmtPtr) { + Constant *format = ConstantArray::get(frmt, true); + ArrayType *arrayTy = ArrayType::get(IntegerType::get(8), strlen(frmt) + 1); + GlobalVariable* globalFormat = new GlobalVariable( + /*Type=*/arrayTy, + /*isConstant=*/true, + /*Linkage=*/GlobalValue::InternalLinkage, + /*Initializer=*/0, // has initializer, specified below + /*Name=*/name(".str"), + m_mod); + globalFormat->setInitializer(format); + + Constant* const_int0 = Constant::getNullValue(IntegerType::get(32)); + std::vector<Constant*> const_ptr_21_indices; + const_ptr_21_indices.push_back(const_int0); + const_ptr_21_indices.push_back(const_int0); + m_fmtPtr = ConstantExpr::getGetElementPtr(globalFormat, + &const_ptr_21_indices[0], const_ptr_21_indices.size()); + } + + Function *func_printf = m_mod->getFunction("printf"); + if (!func_printf) + func_printf = declarePrintf(); + assert(func_printf); + std::vector<llvm::Value*> vec = extractVector(val); + Value *dx = m_builder.CreateFPExt(vec[0], Type::DoubleTy, name("dx")); + Value *dy = m_builder.CreateFPExt(vec[1], Type::DoubleTy, name("dy")); + Value *dz = m_builder.CreateFPExt(vec[2], Type::DoubleTy, name("dz")); + Value *dw = m_builder.CreateFPExt(vec[3], Type::DoubleTy, name("dw")); + std::vector<Value*> params; + params.push_back(m_fmtPtr); + params.push_back(dx); + params.push_back(dy); + params.push_back(dz); + params.push_back(dw); + CallInst *call = m_builder.CreateCall(func_printf, params.begin(), params.end(), + name("printf")); + call->setCallingConv(CallingConv::C); + call->setTailCall(true); +} + +llvm::Function * Instructions::declarePrintf() +{ + std::vector<const Type*> args; + PAListPtr params; + FunctionType* funcTy = FunctionType::get( + /*Result=*/IntegerType::get(32), + /*Params=*/args, + /*isVarArg=*/true); + Function* func_printf = Function::Create( + /*Type=*/funcTy, + /*Linkage=*/GlobalValue::ExternalLinkage, + /*Name=*/"printf", m_mod); + func_printf->setCallingConv(CallingConv::C); + func_printf->setParamAttrs(params); + return func_printf; +} + + +llvm::Value * Instructions::sgt(llvm::Value *in1, llvm::Value *in2) +{ + Constant *const1f = ConstantFP::get(APFloat(1.000000e+00f)); + Constant *const0f = Constant::getNullValue(Type::FloatTy); + + std::vector<llvm::Value*> vec1 = extractVector(in1); + std::vector<llvm::Value*> vec2 = extractVector(in2); + Value *xcmp = m_builder.CreateFCmpOGT(vec1[0], vec2[0], name("xcmp")); + Value *x = m_builder.CreateSelect(xcmp, const1f, const0f, name("xsel")); + + Value *ycmp = m_builder.CreateFCmpOGT(vec1[1], vec2[1], name("ycmp")); + Value *y = m_builder.CreateSelect(ycmp, const1f, const0f, name("ysel")); + + Value *zcmp = m_builder.CreateFCmpOGT(vec1[2], vec2[2], name("zcmp")); + Value *z = m_builder.CreateSelect(zcmp, const1f, const0f, name("zsel")); + + Value *wcmp = m_builder.CreateFCmpOGT(vec1[3], vec2[3], name("wcmp")); + Value *w = m_builder.CreateSelect(wcmp, const1f, const0f, name("wsel")); + + return vectorFromVals(x, y, z, w); +} +llvm::Value * Instructions::sge(llvm::Value *in1, llvm::Value *in2) +{ + Constant *const1f = ConstantFP::get(APFloat(1.000000e+00f)); + Constant *const0f = Constant::getNullValue(Type::FloatTy); + + std::vector<llvm::Value*> vec1 = extractVector(in1); + std::vector<llvm::Value*> vec2 = extractVector(in2); + + Value *xcmp = m_builder.CreateFCmpOGE(vec1[0], vec2[0], name("xcmp")); + Value *x = m_builder.CreateSelect(xcmp, const1f, const0f, name("xsel")); + + Value *ycmp = m_builder.CreateFCmpOGE(vec1[1], vec2[1], name("ycmp")); + Value *y = m_builder.CreateSelect(ycmp, const1f, const0f, name("ysel")); + + Value *zcmp = m_builder.CreateFCmpOGE(vec1[2], vec2[2], name("zcmp")); + Value *z = m_builder.CreateSelect(zcmp, const1f, const0f, name("zsel")); + + Value *wcmp = m_builder.CreateFCmpOGE(vec1[3], vec2[3], name("wcmp")); + Value *w = m_builder.CreateSelect(wcmp, const1f, const0f, name("wsel")); + + return vectorFromVals(x, y, z, w); +} + + +llvm::Value * Instructions::slt(llvm::Value *in1, llvm::Value *in2) +{ + Constant *const1f = ConstantFP::get(APFloat(1.000000e+00f)); + Constant *const0f = Constant::getNullValue(Type::FloatTy); + + std::vector<llvm::Value*> vec1 = extractVector(in1); + std::vector<llvm::Value*> vec2 = extractVector(in2); + + Value *xcmp = m_builder.CreateFCmpOLT(vec1[0], vec2[0], name("xcmp")); + Value *x = m_builder.CreateSelect(xcmp, const1f, const0f, name("xsel")); + + Value *ycmp = m_builder.CreateFCmpOLT(vec1[1], vec2[1], name("ycmp")); + Value *y = m_builder.CreateSelect(ycmp, const1f, const0f, name("ysel")); + + Value *zcmp = m_builder.CreateFCmpOLT(vec1[2], vec2[2], name("zcmp")); + Value *z = m_builder.CreateSelect(zcmp, const1f, const0f, name("zsel")); + + Value *wcmp = m_builder.CreateFCmpOLT(vec1[3], vec2[3], name("wcmp")); + Value *w = m_builder.CreateSelect(wcmp, const1f, const0f, name("wsel")); + + return vectorFromVals(x, y, z, w); +} + +llvm::Value * Instructions::cross(llvm::Value *in1, llvm::Value *in2) +{ + Value *x1 = m_builder.CreateExtractElement(in1, + m_storage->constantInt(0), + name("x1")); + Value *y1 = m_builder.CreateExtractElement(in1, + m_storage->constantInt(1), + name("y1")); + Value *z1 = m_builder.CreateExtractElement(in1, + m_storage->constantInt(2), + name("z1")); + + Value *x2 = m_builder.CreateExtractElement(in2, + m_storage->constantInt(0), + name("x2")); + Value *y2 = m_builder.CreateExtractElement(in2, + m_storage->constantInt(1), + name("y2")); + Value *z2 = m_builder.CreateExtractElement(in2, + m_storage->constantInt(2), + name("z2")); + Value *y1z2 = mul(y1, z2); + Value *z1y2 = mul(z1, y2); + + Value *z1x2 = mul(z1, x2); + Value *x1z2 = mul(x1, z2); + + Value *x1y2 = mul(x1, y2); + Value *y1x2 = mul(y1, x2); + + return vectorFromVals(sub(y1z2, z1y2), sub(z1x2, x1z2), sub(x1y2, y1x2)); +} + + +llvm::Value * Instructions::abs(llvm::Value *in) +{ + std::vector<llvm::Value*> vec = extractVector(in); + Value *xabs = callFAbs(vec[0]); + Value *yabs = callFAbs(vec[1]); + Value *zabs = callFAbs(vec[2]); + Value *wabs = callFAbs(vec[3]); + return vectorFromVals(xabs, yabs, zabs, wabs); +} + +void Instructions::ifop(llvm::Value *in) +{ + BasicBlock *ifthen = BasicBlock::Create(name("ifthen"), m_func,0); + BasicBlock *ifend = BasicBlock::Create(name("ifthenend"), m_func,0); + + //BasicBlock *yblock = new BasicBlock(name("yblock"), m_func,0); + //BasicBlock *zblock = new BasicBlock(name("zblock"), m_func,0); + //BasicBlock *wblock = new BasicBlock(name("wblock"), m_func,0); + + Constant *float0 = Constant::getNullValue(Type::FloatTy); + + Value *x = m_builder.CreateExtractElement(in, m_storage->constantInt(0), + name("extractx")); + Value *xcmp = m_builder.CreateFCmpUNE(x, float0, name("xcmp")); + m_builder.CreateCondBr(xcmp, ifthen, ifend); + //m_builder.SetInsertPoint(yblock); + + m_builder.SetInsertPoint(ifthen); + m_ifStack.push(ifend); +} + +llvm::BasicBlock * Instructions::currentBlock() const +{ + return m_builder.GetInsertBlock(); +} + +void Instructions::elseop() +{ + assert(!m_ifStack.empty()); + BasicBlock *ifend = BasicBlock::Create(name("ifend"), m_func,0); + m_builder.CreateBr(ifend); + m_builder.SetInsertPoint(m_ifStack.top()); + currentBlock()->setName(name("ifelse")); + m_ifStack.pop(); + m_ifStack.push(ifend); +} + +void Instructions::endif() +{ + assert(!m_ifStack.empty()); + m_builder.CreateBr(m_ifStack.top()); + m_builder.SetInsertPoint(m_ifStack.top()); + m_ifStack.pop(); +} + +llvm::Value * Instructions::lerp(llvm::Value *in1, llvm::Value *in2, + llvm::Value *in3) +{ + llvm::Value *m = mul(in1, in2); + llvm::Value *vec1 = constVector(1.f, 1.f, 1.f, 1.f); + llvm::Value *s = sub(vec1, in1); + return add(m, mul(s, in3)); +} + +void Instructions::beginLoop() +{ + BasicBlock *begin = BasicBlock::Create(name("loop"), m_func,0); + BasicBlock *end = BasicBlock::Create(name("endloop"), m_func,0); + + m_builder.CreateBr(begin); + Loop loop; + loop.begin = begin; + loop.end = end; + m_builder.SetInsertPoint(begin); + m_loopStack.push(loop); +} + +void Instructions::endLoop() +{ + assert(!m_loopStack.empty()); + Loop loop = m_loopStack.top(); + m_builder.CreateBr(loop.begin); + loop.end->moveAfter(currentBlock()); + m_builder.SetInsertPoint(loop.end); + m_loopStack.pop(); +} + +void Instructions::brk() +{ + assert(!m_loopStack.empty()); + BasicBlock *unr = BasicBlock::Create(name("unreachable"), m_func,0); + m_builder.CreateBr(m_loopStack.top().end); + m_builder.SetInsertPoint(unr); +} + +llvm::Value * Instructions::trunc(llvm::Value *in) +{ + std::vector<llvm::Value*> vec = extractVector(in); + Value *icastx = m_builder.CreateFPToSI(vec[0], IntegerType::get(32), + name("ftoix")); + Value *icasty = m_builder.CreateFPToSI(vec[1], IntegerType::get(32), + name("ftoiy")); + Value *icastz = m_builder.CreateFPToSI(vec[2], IntegerType::get(32), + name("ftoiz")); + Value *icastw = m_builder.CreateFPToSI(vec[3], IntegerType::get(32), + name("ftoiw")); + Value *fx = m_builder.CreateSIToFP(icastx, Type::FloatTy, + name("fx")); + Value *fy = m_builder.CreateSIToFP(icasty, Type::FloatTy, + name("fy")); + Value *fz = m_builder.CreateSIToFP(icastz, Type::FloatTy, + name("fz")); + Value *fw = m_builder.CreateSIToFP(icastw, Type::FloatTy, + name("fw")); + return vectorFromVals(fx, fy, fz, fw); +} + +void Instructions::end() +{ + m_builder.CreateRetVoid(); +} + +void Instructions::cal(int label, llvm::Value *input) +{ + std::vector<Value*> params; + params.push_back(input); + llvm::Function *func = findFunction(label); + + m_builder.CreateCall(func, params.begin(), params.end()); +} + +llvm::Function * Instructions::declareFunc(int label) +{ + PointerType *vecPtr = PointerType::getUnqual(m_floatVecType); + std::vector<const Type*> args; + args.push_back(vecPtr); + args.push_back(vecPtr); + args.push_back(vecPtr); + args.push_back(vecPtr); + PAListPtr params; + FunctionType *funcType = FunctionType::get( + /*Result=*/Type::VoidTy, + /*Params=*/args, + /*isVarArg=*/false); + std::string name = createFuncName(label); + Function *func = Function::Create( + /*Type=*/funcType, + /*Linkage=*/GlobalValue::ExternalLinkage, + /*Name=*/name.c_str(), m_mod); + func->setCallingConv(CallingConv::C); + func->setParamAttrs(params); + return func; +} + +void Instructions::bgnSub(unsigned label) +{ + llvm::Function *func = findFunction(label); + + Function::arg_iterator args = func->arg_begin(); + Value *ptr_INPUT = args++; + ptr_INPUT->setName("INPUT"); + m_storage->pushArguments(ptr_INPUT); + + llvm::BasicBlock *entry = BasicBlock::Create("entry", func, 0); + + m_func = func; + m_builder.SetInsertPoint(entry); +} + +void Instructions::endSub() +{ + m_func = 0; + m_builder.SetInsertPoint(0); +} + +llvm::Function * Instructions::findFunction(int label) +{ + llvm::Function *func = m_functions[label]; + if (!func) { + func = declareFunc(label); + m_functions[label] = func; + } + return func; +} + +llvm::Value * Instructions::constVector(float x, float y, float z, float w) +{ + std::vector<Constant*> vec(4); + vec[0] = ConstantFP::get(APFloat(x)); + vec[1] = ConstantFP::get(APFloat(y)); + vec[2] = ConstantFP::get(APFloat(z)); + vec[3] = ConstantFP::get(APFloat(w)); + return ConstantVector::get(m_floatVecType, vec); +} + + +std::vector<llvm::Value*> Instructions::extractVector(llvm::Value *vec) +{ + std::vector<llvm::Value*> elems(4); + elems[0] = m_builder.CreateExtractElement(vec, m_storage->constantInt(0), + name("x")); + elems[1] = m_builder.CreateExtractElement(vec, m_storage->constantInt(1), + name("y")); + elems[2] = m_builder.CreateExtractElement(vec, m_storage->constantInt(2), + name("z")); + elems[3] = m_builder.CreateExtractElement(vec, m_storage->constantInt(3), + name("w")); + return elems; +} + +llvm::Value * Instructions::cmp(llvm::Value *in1, llvm::Value *in2, llvm::Value *in3) +{ + llvm::Function *func = m_mod->getFunction("cmp"); + assert(func); + + std::vector<Value*> params; + params.push_back(in1); + params.push_back(in2); + params.push_back(in3); + CallInst *call = m_builder.CreateCall(func, params.begin(), params.end(), name("cmpres")); + call->setTailCall(false); + return call; +} + +llvm::Value * Instructions::cos(llvm::Value *in) +{ +#if 0 + llvm::Function *func = m_mod->getFunction("vcos"); + assert(func); + + CallInst *call = m_builder.CreateCall(func, in, name("cosres")); + call->setTailCall(false); + return call; +#else + std::vector<llvm::Value*> elems = extractVector(in); + Function *func = m_mod->getFunction("cosf"); + assert(func); + CallInst *cos = m_builder.CreateCall(func, elems[0], name("cosres")); + cos->setCallingConv(CallingConv::C); + cos->setTailCall(true); + return vectorFromVals(cos, cos, cos, cos); +#endif +} + +llvm::Value * Instructions::scs(llvm::Value *in) +{ + llvm::Function *func = m_mod->getFunction("scs"); + assert(func); + + CallInst *call = m_builder.CreateCall(func, in, name("scsres")); + call->setTailCall(false); + return call; +} + +llvm::Value * Instructions::kil(llvm::Value *in) +{ + llvm::Function *func = m_mod->getFunction("kil"); + assert(func); + + CallInst *call = m_builder.CreateCall(func, in, name("kilpres")); + call->setTailCall(false); + return call; +} + +llvm::Value * Instructions::sin(llvm::Value *in) +{ + llvm::Function *func = m_mod->getFunction("vsin"); + assert(func); + + CallInst *call = m_builder.CreateCall(func, in, name("sinres")); + call->setTailCall(false); + return call; +} +#endif //MESA_LLVM + + |