66 lines
1.2 KiB
C++
66 lines
1.2 KiB
C++
#ifndef TDL_INCLUDE_IR_CODEGEN_LIVENESS_H
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#define TDL_INCLUDE_IR_CODEGEN_LIVENESS_H
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#include <map>
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namespace tdl{
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namespace ir{
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class value;
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class function;
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class module;
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}
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namespace codegen{
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typedef unsigned slot_index;
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class buffer_info_pass;
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struct segment {
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slot_index start;
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slot_index end;
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bool contains(slot_index idx) const {
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return start <= idx && idx < end;
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}
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bool intersect(const segment &Other){
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return contains(Other.start) || Other.contains(start);
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}
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};
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class liveness {
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private:
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typedef std::map<ir::value*, slot_index> indices_map_t;
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typedef std::map<ir::value*, segment> intervals_map_t;
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typedef std::map<ir::value*, bool> has_storage_map_t;
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public:
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// Intervals iterators
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using iterator = intervals_map_t::iterator;
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using const_iterator = intervals_map_t::const_iterator;
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public:
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// constructor
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liveness(buffer_info_pass *info): info_(info){ }
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// accessors
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const intervals_map_t& intervals() const { return intervals_; }
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segment get_interval(ir::value* v) const { return intervals_.at(v); }
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// run
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void run(ir::module &mod);
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private:
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buffer_info_pass *info_;
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has_storage_map_t has_dedicated_storage_;
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indices_map_t indices_;
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intervals_map_t intervals_;
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};
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}
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}
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#endif
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