{"id":"https://openalex.org/W7154718200","doi":"https://doi.org/10.48550/arxiv.2604.15041","title":"HintPilot: LLM-based Compiler Hint Synthesis for Code Optimization","display_name":"HintPilot: LLM-based Compiler Hint Synthesis for Code Optimization","publication_year":2026,"publication_date":"2026-04-16","ids":{"openalex":"https://openalex.org/W7154718200","doi":"https://doi.org/10.48550/arxiv.2604.15041"},"language":null,"primary_location":{"id":"doi:10.48550/arxiv.2604.15041","is_oa":true,"landing_page_url":"https://doi.org/10.48550/arxiv.2604.15041","pdf_url":null,"source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I205783295","host_organization_name":"Cornell University","host_organization_lineage":["https://openalex.org/I205783295"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"article"},"type":"preprint","indexed_in":["datacite"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"https://doi.org/10.48550/arxiv.2604.15041","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5024367801","display_name":"Hanyun Jiang","orcid":null},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Jiang, Hanyun","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5133913556","display_name":"Peisen Yao","orcid":null},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Yao, Peisen","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5133831020","display_name":"Kaiyue Li","orcid":null},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Li, Kaiyue","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5133837252","display_name":"Tingting Lin","orcid":null},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Lin, Tingting","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5101917946","display_name":"Chengpeng Wang","orcid":"https://orcid.org/0000-0003-0617-5322"},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Wang, Chengpeng","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"last","author":{"id":"https://openalex.org/A5133917083","display_name":"Kui Ren","orcid":null},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Ren, Kui","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]}],"institutions":[],"countries_distinct_count":0,"institutions_distinct_count":6,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":null,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":null,"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":null,"last_page":null},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10126","display_name":"Logic, programming, and type systems","score":0.38960000872612,"subfield":{"id":"https://openalex.org/subfields/1702","display_name":"Artificial Intelligence"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10126","display_name":"Logic, programming, and type systems","score":0.38960000872612,"subfield":{"id":"https://openalex.org/subfields/1702","display_name":"Artificial Intelligence"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10054","display_name":"Parallel Computing and Optimization Techniques","score":0.32829999923706055,"subfield":{"id":"https://openalex.org/subfields/1708","display_name":"Hardware and Architecture"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10904","display_name":"Embedded Systems Design Techniques","score":0.04809999838471413,"subfield":{"id":"https://openalex.org/subfields/1708","display_name":"Hardware and Architecture"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/compiler","display_name":"Compiler","score":0.9118000268936157},{"id":"https://openalex.org/keywords/interprocedural-optimization","display_name":"Interprocedural optimization","score":0.7867000102996826},{"id":"https://openalex.org/keywords/compiler-correctness","display_name":"Compiler correctness","score":0.7429999709129333},{"id":"https://openalex.org/keywords/optimizing-compiler","display_name":"Optimizing compiler","score":0.6801000237464905},{"id":"https://openalex.org/keywords/loop-optimization","display_name":"Loop optimization","score":0.6144000291824341},{"id":"https://openalex.org/keywords/speedup","display_name":"Speedup","score":0.6022999882698059},{"id":"https://openalex.org/keywords/program-optimization","display_name":"Program optimization","score":0.5361999869346619},{"id":"https://openalex.org/keywords/code-generation","display_name":"Code generation","score":0.5216000080108643}],"concepts":[{"id":"https://openalex.org/C169590947","wikidata":"https://www.wikidata.org/wiki/Q47506","display_name":"Compiler","level":2,"score":0.9118000268936157},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.8580999970436096},{"id":"https://openalex.org/C111564260","wikidata":"https://www.wikidata.org/wiki/Q4288856","display_name":"Interprocedural optimization","level":5,"score":0.7867000102996826},{"id":"https://openalex.org/C68366613","wikidata":"https://www.wikidata.org/wiki/Q5156378","display_name":"Compiler correctness","level":3,"score":0.7429999709129333},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.7422000169754028},{"id":"https://openalex.org/C190902152","wikidata":"https://www.wikidata.org/wiki/Q1325106","display_name":"Optimizing compiler","level":3,"score":0.6801000237464905},{"id":"https://openalex.org/C29331672","wikidata":"https://www.wikidata.org/wiki/Q3354468","display_name":"Loop optimization","level":4,"score":0.6144000291824341},{"id":"https://openalex.org/C68339613","wikidata":"https://www.wikidata.org/wiki/Q1549489","display_name":"Speedup","level":2,"score":0.6022999882698059},{"id":"https://openalex.org/C139571649","wikidata":"https://www.wikidata.org/wiki/Q1156793","display_name":"Program optimization","level":3,"score":0.5361999869346619},{"id":"https://openalex.org/C133162039","wikidata":"https://www.wikidata.org/wiki/Q1061077","display_name":"Code generation","level":3,"score":0.5216000080108643},{"id":"https://openalex.org/C9957790","wikidata":"https://www.wikidata.org/wiki/Q47506","display_name":"Compiler construction","level":3,"score":0.5127000212669373},{"id":"https://openalex.org/C173608175","wikidata":"https://www.wikidata.org/wiki/Q232661","display_name":"Parallel computing","level":1,"score":0.507099986076355},{"id":"https://openalex.org/C2776760102","wikidata":"https://www.wikidata.org/wiki/Q5139990","display_name":"Code (set theory)","level":3,"score":0.45239999890327454},{"id":"https://openalex.org/C8767382","wikidata":"https://www.wikidata.org/wiki/Q1058454","display_name":"Dynamic compilation","level":3,"score":0.4345000088214874},{"id":"https://openalex.org/C128916667","wikidata":"https://www.wikidata.org/wiki/Q1343660","display_name":"Register allocation","level":3,"score":0.38199999928474426},{"id":"https://openalex.org/C43126263","wikidata":"https://www.wikidata.org/wiki/Q128751","display_name":"Source code","level":2,"score":0.38089999556541443},{"id":"https://openalex.org/C2777904410","wikidata":"https://www.wikidata.org/wiki/Q7397","display_name":"Software","level":2,"score":0.3686000108718872},{"id":"https://openalex.org/C56666940","wikidata":"https://www.wikidata.org/wiki/Q788790","display_name":"Documentation","level":2,"score":0.36320000886917114},{"id":"https://openalex.org/C2144512","wikidata":"https://www.wikidata.org/wiki/Q1143090","display_name":"Dead code elimination","level":5,"score":0.3237999975681305},{"id":"https://openalex.org/C529173508","wikidata":"https://www.wikidata.org/wiki/Q638608","display_name":"Software development","level":3,"score":0.2870999872684479},{"id":"https://openalex.org/C77660490","wikidata":"https://www.wikidata.org/wiki/Q244916","display_name":"Intermediate language","level":3,"score":0.28600001335144043},{"id":"https://openalex.org/C177264268","wikidata":"https://www.wikidata.org/wiki/Q1514741","display_name":"Set (abstract data type)","level":2,"score":0.27059999108314514}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.48550/arxiv.2604.15041","is_oa":true,"landing_page_url":"https://doi.org/10.48550/arxiv.2604.15041","pdf_url":null,"source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I205783295","host_organization_name":"Cornell University","host_organization_lineage":["https://openalex.org/I205783295"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":null,"raw_source_name":null,"raw_type":"article"}],"best_oa_location":{"id":"doi:10.48550/arxiv.2604.15041","is_oa":true,"landing_page_url":"https://doi.org/10.48550/arxiv.2604.15041","pdf_url":null,"source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I205783295","host_organization_name":"Cornell University","host_organization_lineage":["https://openalex.org/I205783295"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"article"},"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/9","score":0.6515520811080933,"display_name":"Industry, innovation and infrastructure"}],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":0,"referenced_works":[],"related_works":[],"abstract_inverted_index":{"Code":[0],"optimization":[1,17,45],"remains":[2],"a":[3],"core":[4],"objective":[5],"in":[6],"software":[7],"development,":[8],"yet":[9],"modern":[10],"compilers":[11],"struggle":[12],"to":[13,30,79,93],"navigate":[14],"the":[15],"enormous":[16],"spaces.":[18],"While":[19],"recent":[20],"research":[21],"has":[22],"looked":[23],"into":[24],"employing":[25],"large":[26],"language":[27],"models":[28],"(LLMs)":[29],"optimize":[31],"source":[32],"code":[33],"directly,":[34],"these":[35],"techniques":[36],"can":[37],"introduce":[38],"semantic":[39],"errors":[40],"and":[41,74,82,87],"miss":[42],"fine-grained":[43],"compiler-level":[44],"opportunities.":[46],"We":[47],"present":[48],"HintPilot,":[49],"which":[50],"bridges":[51],"LLM-based":[52],"reasoning":[53],"with":[54],"traditional":[55],"compiler":[56,60,65,72],"infrastructures":[57],"via":[58],"synthesizing":[59],"hints,":[61],"annotations":[62],"that":[63],"steer":[64],"behavior.":[66],"HintPilot":[67,90],"employs":[68],"retrieval-augmented":[69],"synthesis":[70],"over":[71,98],"documentation":[73],"applies":[75],"profiling-guided":[76],"iterative":[77],"refinement":[78],"synthesize":[80],"semantics-preserving":[81],"effective":[83],"hints.":[84],"Upon":[85],"PolyBench":[86],"HumanEval-CPP":[88],"benchmarks,":[89],"achieves":[91],"up":[92],"6.88x":[94],"geometric":[95],"mean":[96],"speedup":[97],"-Ofast":[99],"while":[100],"preserving":[101],"program":[102],"correctness.":[103]},"counts_by_year":[],"updated_date":"2026-06-11T09:08:48.828518","created_date":"2026-04-18T00:00:00"}
