52 lines
1.8 KiB
C++
52 lines
1.8 KiB
C++
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#include <iostream>
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#include <algorithm>
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#include "triton/ir/module.h"
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#include "triton/ir/function.h"
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#include "triton/ir/basic_block.h"
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#include "triton/ir/instructions.h"
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#include "triton/codegen/transform/reorder.h"
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namespace triton {
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namespace codegen{
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namespace transform{
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void reorder::run(ir::module& mod){
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ir::builder &builder = mod.get_builder();
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std::vector<std::pair<ir::instruction*, ir::value*>> to_replace;
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for(ir::function *fn: mod.get_function_list())
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for(ir::basic_block *block: fn->blocks())
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for(ir::instruction* i: block->get_inst_list()){
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if(auto* ld = dynamic_cast<ir::masked_load_inst*>(i)){
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ir::value* _ptr = ld->get_pointer_operand();
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ir::value* _msk = ld->get_mask_operand();
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ir::value* _val = ld->get_false_value_operand();
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auto ptr = std::find(block->begin(), block->end(), _ptr);
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auto msk = std::find(block->begin(), block->end(), _msk);
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auto val = std::find(block->begin(), block->end(), _val);
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if(ptr == block->end() || msk == block->end() || val == block->end())
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continue;
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auto it = std::find(block->begin(), block->end(), i);
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int dist_ptr = std::distance(ptr, it);
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int dist_msk = std::distance(msk, it);
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int dist_val = std::distance(val, it);
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if(dist_ptr < dist_msk && dist_ptr < dist_val)
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builder.set_insert_point(++ptr);
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if(dist_msk < dist_ptr && dist_msk < dist_val)
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builder.set_insert_point(++msk);
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if(dist_val < dist_ptr && dist_val < dist_msk)
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builder.set_insert_point(++val);
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ir::value* new_ld = builder.create_masked_load(_ptr, _msk, _val);
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to_replace.push_back(std::make_pair(ld, new_ld));
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}
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}
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for(auto& x: to_replace)
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x.first->replace_all_uses_with(x.second);
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}
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}
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}
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}
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