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This commit is contained in:
Philippe Tillet
2019-09-10 00:37:51 -04:00
parent ef99baa743
commit c622619bcb
3 changed files with 19 additions and 8 deletions
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22
lib/codegen/transform/reorder.cc
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@@ -18,7 +18,6 @@ reorder::reorder(analysis::align* align, analysis::meminfo *mem)
: align_(align), mem_(mem) { }
std::vector<unsigned> reorder::get_order(ir::value* v) {
std::cout << v->get_name() << std::endl;
return order_.at(v);
}
@@ -26,6 +25,20 @@ void reorder::run(ir::module &mod) {
std::set<ir::io_inst*> io;
std::function<void(ir::value*)> set_order = [&](ir::value *v) -> void {
if(order_.find(v) != order_.end())
return;
if(ir::user* u = dynamic_cast<ir::user*>(v))
for(ir::value* op: u->ops())
set_order(op);
ir::type* ty = v->get_type();
if(!ty->is_tile_ty())
return;
std::vector<unsigned> order(ty->get_tile_shapes().size());
std::iota(order.begin(), order.end(), 0);
order_[v] = order;
};
// initialize work-list
for(ir::function *fn: mod.get_function_list())
for(ir::basic_block *block: ir::cfg::reverse_post_order(fn))
@@ -34,10 +47,8 @@ void reorder::run(ir::module &mod) {
ir::type* ptr_ty = x->get_pointer_operand()->get_type();
if(ptr_ty->is_tile_ty())
io.insert(x);
std::vector<unsigned> order(ptr_ty->get_tile_shapes().size());
std::iota(order.begin(), order.end(), 0);
order_[i] = order;
}
set_order(i);
}
ir::builder &builder = mod.get_builder();
@@ -48,9 +59,8 @@ void reorder::run(ir::module &mod) {
std::iota(order.begin(), order.end(), 0);
std::sort(order.begin(), order.end(), [&](unsigned a, unsigned b) { return max_contiguous[a] > max_contiguous[b]; } );
std::list<ir::instruction*> work_list;
if(order != order_[i]){
if(order != order_[i])
work_list.push_back(i);
}
// rematerialize recursively
while(!work_list.empty()) {
ir::instruction* current = work_list.back();