I-GCC 9.1

NgoMeyi 3, ukukhishwa kokuqala komphakathi kwenguqulo yesishiyagalolunye ye-GCC kwenzeka: GCC 9.1.
Iqukethe ukuthuthuka okuningi okubalulekile kanye nesengezo uma kuqhathaniswa nesesishiyagalombili
inguqulo.

Izinguquko ezijwayelekile

Izinketho

• Imiyalo eyamukela usayizi manje isekela amanani angu-64-bit nezijobelelo ukuze ucacise usayizi;
• Inketho eyengeziwe -i-flive-patching, ukulawula ukulungiselelwa okungase konakalise ukushintshwa kwekhodi eguquguqukayo;
• Kwengezwe --inketho yokuqedela ukusekela ukuqedela okuzenzakalelayo kugobolondo lomyalo;
• Ukuxilongwa kweqoqo manje sekuhlanganisa izinombolo zomugqa (-fno-diagnostics-show-line-numbers) futhi
  thayipha ulwazi (amalebula e-fno-diagnostics-show);
• Inketho eyengeziwe -fdiagnostics-format=json ukuze kukhishwe ukuxilongwa ngefomethi ye-JSON;
• Izinketho zokucacisa ukuqondanisa (-imisebenzi-yamanga, isibonelo) manje selingamukela izinketho ezimbalwa zokuqondanisa;
• Izinketho ezingeziwe zokuhlunga uhlu lwamafayela (-fprofile-filtha-amafayela, -fprofile-khipha-amafayela), ezisetshenziswa ngumphrofayili;
• I-AddressSanitizer manje isebenzisa ukuqondanisa okuhlangene okwengeziwe ukuze ibambe ukufinyelela okungavumelekile kokuguquguqukayo kusitaki;
• Ukuthuthukiswa kokukhiphayo okuningi -fopt-info;
• Inketho eyengeziwe -fsave-optimization-irekhodi ukulondoloza umbiko wokulungiselela efayeleni;
• Inketho eyengeziwe -ukuqondanisa kwe-fipa-stack и -fipa-reference-addressable.

Izici ezintsha ezakhelwe ngaphakathi

• __kulindelwe_kwakhiwe_ngamathuba;
• __i-builtin_ine_attribute;
• __builtin_speculation_safe_valuve.

Isibaluli esisha

• ikhophi.

Okunye

Ukuthuthukiswa kokukhiqiza amakhodi okuningi okuhlobene noku:

• ukukhiqizwa kwezakhi zokushintsha;
• ukulungiselelwa okuphakathi kwenqubo;
• ukwenza kahle okusekelwe olwazini lwephrofayela;
• ukwenza kahle esiteji somhlangano (LTO);

Futhi ifomethi yangaphakathi ye-gcov manje sekuyi-JSON, kanye nenketho entsha --sebenzisa-imibala-eshisayo kuhilela imigqa yombala yekhodi ngokusekelwe ekutheni isetshenziswa kaningi kangakanani.

Izilimi

Ikhwalithi nokuphelela kokuqaliswa I-OpenACC izilimi C, C++, kanye ne-Fortran ziyaqhubeka nokuthuthuka.

Izilimi ezifana no-C

• Ukwesekwa okuyingxenye kwe-OpenMP 5.0 sekuqalisiwe;
• Isici esingeziwe __i-builtin_convertvector;
• Kwengezwe isexwayiso -Iwadresi-la-packed-ilungu;
• Ukuthuthukiswa kwenani lezixwayiso ezikhona;
• Umbhalo wephutha lapho udlulisela inombolo engalungile yama-agumenti ku-macro manje uhlanganisa isimemezelo se-macro ngokwayo;
• Ukuthuthukiswa kweziphakamiso zokulungisa ukuthayipha.

C

• Sekela _Static_assert nge-agumenti eyodwa yokuthi -std=c2x (okujwayelekile C okuzayo);
• Isexwayiso esisha -Inani eliphelele, ebamba uhlobo lwempikiswano olungalungile lwemisebenzi efana ne-abs().

C ++

• Izixwayiso ezintsha: -Kweqiwe ikhophi,
  -Winit-list-lifetime,
  -Umnyakazo onzima,
  -Ukwengeza-ukunyakaza,
  -Wclass-ukuguqulwa;
• Uyaqhubeka umsebenzi wokusebenzisa izici ezintsha kusukela ezingeni elizayo C++2a;
• I-frontend manje igcina ulwazi olunembile mayelana nenani lezinto zekhodi yomthombo, okukuvumela ukuthi ubonise ulwazi oluningiliziwe ekuxilongweni;
• Ukuxilonga okuthuthukisiwe kwemisebenzi elayishwe kakhulu, ama-opharetha anambambili, izingcingo zokusebenza neyunithi yezinhlamvu zefomethi;
• Kungezwe ukulungiswa okuzenzakalelayo okusekelwa izindawo ezithile zokuthuthukiswa kwenani lamaphutha adumile (abakaki abangekho, izikhala zamagama, ama-typos, njll.).

libstdc++

• Ukufakwa kwe-C++17 akusahlolwa;
• Kwengezwe ama-algorithms afanayo, , , A ayisadingi -lstdc++fs;
• Usekelo lokuhlola oluthuthukisiwe lwe-C++2a ( , , std::bind_front, njll.);
• Ukusekelwa kokuvula ukusakazwa kwamafayela ku-Windows izindlela zazo eziqukethe izinhlamvu ezingezona ama-char;
• Ukwesekwa kokuqala ku-Windows;
• Usekelo lokuqala lwe-Networking TS.

D

D inguqulo yolimi 2.076 ifakiwe ku-GCC.

UFortran

• Ukusekelwa okugcwele kwe-asynchronous I/O;
• Kusetshenziswe ukungqubuzana OKUMVA kwe-MINLOC kanye ne-MAXLOC;
• Kwethulwe imisebenzi ye-FINDLOC kanye ne-IS_CONTIGOUS;
• I-syntax yokufinyelela izingxenye zezinombolo eziyinkimbinkimbi isetshenzisiwe: c%re kanye ne-c%im;
• I-syntax esetshenzisiwe str%len kanye nohlobo lwe%;
• Izichazi ze-C ezisetshenzisiwe kanye nesihloko se-ISO_Fortran_binding.h;
• Izimfuneko ezikhululekile zomphumela wemisebenzi engu-MAX kanye ne-MIN uma enye yezimpikiswano ithi-NaN;
• Inketho eyengeziwe -fdec-faka;
• Isiqondiso sengeziwe I-BUILTIN.

libgccjit

• Isici esingeziwe gcc_jit_context_add_driver_option.

Okunye

Izinguquko eziningi zezakhiwo- kanye ne-OS-specific.

Source: linux.org.ru