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#include "instructionssoa.h"
#include "storagesoa.h"
#include <llvm/Constants.h>
using namespace llvm;
InstructionsSoa::InstructionsSoa(llvm::Module *mod, llvm::Function *func,
llvm::BasicBlock *block, StorageSoa *storage)
: m_builder(block),
m_storage(storage),
m_idx(0)
{
}
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;
}
std::vector<llvm::Value*> InstructionsSoa::arl(const std::vector<llvm::Value*> in)
{
std::vector<llvm::Value*> res(4);
//Extract the first x (all 4 should be the same)
llvm::Value *x = m_builder.CreateExtractElement(in[0],
m_storage->constantInt(0),
name("extractX"));
//cast it to an unsigned int
x = m_builder.CreateFPToUI(x, IntegerType::get(32), name("xIntCast"));
res[0] = x;
//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::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::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;
}
void InstructionsSoa::end()
{
m_builder.CreateRetVoid();
}
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);
}
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