void HoistParameterLoadsPass::_tryHoistingLoad(
ir::ControlFlowGraph::iterator block, ir::PTXInstruction* ptx,
ir::IRKernel& k)
{
report(" " << ptx->toString());
auto newBlock = _getTopLevelDominatingBlock(k, block);
if(newBlock == block) return;
report(" hoisting to " << newBlock->label());
auto dfg = static_cast<analysis::DataflowGraph*>(
getAnalysis(Analysis::DataflowGraphAnalysis));
auto load = new ir::PTXInstruction(ir::PTXInstruction::Ld);
load->addressSpace = ptx->addressSpace;
load->type = ptx->type;
load->volatility = ptx->volatility;
load->cacheOperation = ptx->cacheOperation;
load->d = ir::PTXOperand(ir::PTXOperand::Register,
ptx->d.type, dfg->newRegister());
load->a = ptx->a;
insertBeforeTerminator(newBlock, load);
ptx->opcode = ir::PTXInstruction::Mov;
ptx->a = load->d;
}
Register * newStdRegister(unsigned int name)
{
Register * reg=newRegister(name,StdRegister_write,StdRegister_read);
return reg;
}
/* WARNING: after calling newIORegister you have to call IORegister_set_functs */
Register * newIORegister(unsigned int name)
{
return newRegister(name,IORegister_write,IORegister_read);
}
Register * newOutPutRegister(unsigned int name,FILE * stream)
{
Register * reg=newRegister(name,OutPutRegister_write,OutPutRegister_read);
reg->x_data=stream;
return reg;
}
Register * newSpecialFunctionRegister(unsigned int name)
{
Register * reg=newRegister(name,SpecialFunctionRegister_write,SpecialFunctionRegister_read);
return reg;
}