{"updated":"2025-01-19T23:20:48.059724+00:00","metadata":{"_oai":{"id":"oai:ipsj.ixsq.nii.ac.jp:00194788","sets":["1164:2240:9748:9749"]},"path":["9749"],"owner":"44499","recid":"194788","title":["LLVMにおけるレジスタ割付け後の改善"],"pubdate":{"attribute_name":"公開日","attribute_value":"2019-02-26"},"_buckets":{"deposit":"d819db79-128f-4897-b879-25ddc2638cb0"},"_deposit":{"id":"194788","pid":{"type":"depid","value":"194788","revision_id":0},"owners":[44499],"status":"published","created_by":44499},"item_title":"LLVMにおけるレジスタ割付け後の改善","author_link":["461914","461913","461912","461915"],"item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"LLVMにおけるレジスタ割付け後の改善"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"最適化","subitem_subject_scheme":"Other"}]},"item_type_id":"4","publish_date":"2019-02-26","item_4_text_3":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"（株）富士通研究所"},{"subitem_text_value":"（株）富士通研究所"},{"subitem_text_value":"（株）富士通研究所"},{"subitem_text_value":"（株）富士通研究所"}]},"item_4_text_4":{"attribute_name":"著者所属(英)","attribute_value_mlt":[{"subitem_text_value":"FUJITSU LABORATORIES, LTD.","subitem_text_language":"en"},{"subitem_text_value":"FUJITSU LABORATORIES, LTD.","subitem_text_language":"en"},{"subitem_text_value":"FUJITSU LABORATORIES, LTD.","subitem_text_language":"en"},{"subitem_text_value":"FUJITSU LABORATORIES, LTD.","subitem_text_language":"en"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"item_publisher":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"情報処理学会","subitem_publisher_language":"ja"}]},"publish_status":"0","weko_shared_id":-1,"item_file_price":{"attribute_name":"Billing file","attribute_type":"file","attribute_value_mlt":[{"url":{"url":"https://ipsj.ixsq.nii.ac.jp/record/194788/files/IPSJ-HPC19168017.pdf","label":"IPSJ-HPC19168017.pdf"},"date":[{"dateType":"Available","dateValue":"2021-02-26"}],"format":"application/pdf","billing":["billing_file"],"filename":"IPSJ-HPC19168017.pdf","filesize":[{"value":"301.4 kB"}],"mimetype":"application/pdf","priceinfo":[{"tax":["include_tax"],"price":"660","billingrole":"5"},{"tax":["include_tax"],"price":"330","billingrole":"6"},{"tax":["include_tax"],"price":"0","billingrole":"14"},{"tax":["include_tax"],"price":"0","billingrole":"44"}],"accessrole":"open_date","version_id":"2ac7ce96-04c1-4ecf-a661-0ef74d63b098","displaytype":"detail","licensetype":"license_note","license_note":"Copyright (c) 2019 by the Information Processing Society of Japan"}]},"item_4_creator_5":{"attribute_name":"著者名","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"一場, 利幸"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"津金, 佳祐"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"新井, 正樹"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"田原, 司睦"}],"nameIdentifiers":[{}]}]},"item_4_source_id_9":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AN10463942","subitem_source_identifier_type":"NCID"}]},"item_4_textarea_12":{"attribute_name":"Notice","attribute_value_mlt":[{"subitem_textarea_value":"SIG Technical Reports are nonrefereed and hence may later appear in any journals, conferences, symposia, etc."}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourceuri":"http://purl.org/coar/resource_type/c_18gh","resourcetype":"technical report"}]},"item_4_source_id_11":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"2188-8841","subitem_source_identifier_type":"ISSN"}]},"item_4_description_7":{"attribute_name":"論文抄録","attribute_value_mlt":[{"subitem_description":"近年，HPC 用途の ARM プロセッサが開発されており，注目が集まっている．そのため，AArch64 をターゲットとしたコンパイラの最適化機能の重要性が増している．しかし，コンパイラ基盤 LLVM の AArch64 向け最適化は，GCC に比べて不十分であることが報告されている．具体的な例の 1 つとして，LLVM は，GCC に比べて多くのスピルコードを挿入する．LLVM が生成したコードを分析すると，空いているレジスタがあるにも関わらず，スピルコードが挿入される場合があった．本研究では，LLVM で挿入される不要なスピルコードについて述べ，それらを削減する方法を提案する．これは，従来通りに LLVM のレジスタ割付けを行った後に，その結果を変更してスピルコードを削減する方法である．2 パターンの不要なスピルコードに対して，提案方法を NPB に適用した結果，パターン 1 については平均 1.25%，パターン 2 については平均 2.87% のスピルコードを削減できた．","subitem_description_type":"Other"}]},"item_4_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicPageEnd":"5","bibliographic_titles":[{"bibliographic_title":"研究報告ハイパフォーマンスコンピューティング（HPC）"}],"bibliographicPageStart":"1","bibliographicIssueDates":{"bibliographicIssueDate":"2019-02-26","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"17","bibliographicVolumeNumber":"2019-HPC-168"}]},"relation_version_is_last":true,"weko_creator_id":"44499"},"created":"2025-01-19T00:59:49.192358+00:00","id":194788,"links":{}}