GCC 9.1

Ngomhla wesi-3 kuMeyi, ukukhutshwa kokuqala koluntu kwenguqu yesithoba ye-GCC kwenzeka: GCC 9.1.
Iqulethe uphuculo oluninzi olubalulekileyo kunye nezongezo xa kuthelekiswa nesibhozo
inguqulelo.

Utshintsho ngokubanzi

Khetha

• Imiyalelo eyamkela ubungakanani ngoku ixhasa amaxabiso angama-64-bit kunye nezimamva zokuchaza ubungakanani;
• Inketho eyongeziweyo -i-flive-patching,ukulawula ulungelelwaniso olunokonakalisa amandla,ukutshintshwa kwekhowudi;
• Kongezwe --ukugqiba ukhetho ukuxhasa ukugqitywa okuzenzekelayo kwiqokobhe lomyalelo;
• Uxilongo lomqokeleli ngoku lubandakanya amanani emigca (-fno-diagnostics-show-line-numbers) kunye
  chwetheza ulwazi (iileyibhile ze-fno-diagnostics-show);
• Inketho eyongeziweyo -fdiagnostics-format=json ukukhupha uxilongo kwifomati ye-JSON;
• Iinketho zokuchaza ulungelelwaniso (-ubuxoki-imisebenzi, umzekelo) ngoku inokwamkela iinketho ezimbalwa zolungelelwaniso;
• Iinketho ezongeziweyo zokucoca uluhlu lweefayile (-fprofile-filtha-iifayile, -fprofile-ngaphandle-iifayile), ezisetyenziswa yiprofayili;
• IdilesiSanitizer ngoku isebenzisa ulungelelwaniso oluthe kratya ukuze ibambe ufikelelo olungasebenziyo kwizinto eziguquguqukayo kwisitaki;
• Uphuculo oluninzi lwemveliso -fopt-info;
• Inketho eyongeziweyo -fsave-optimization-rekhodi ukugcina ingxelo yolungiselelo kwifayile;
• Inketho eyongeziweyo -fipa-stack-alignment и -fipa-reference-addressable.

Iimpawu ezintsha ezakhelwe ngaphakathi

• __ukwakhiwa_kulindelwe_nge_kunokwenzeka;
• __isakhiwo_sinophawu;
• __builtin_speculation_safe_value.

Uphawu olutsha

• ikopi.

Okunye

Uphuculo oluninzi lokwenziwa kwekhowudi ezinxulumene noku:

• ukuveliswa kolwakhiwo lokutshintsha;
• ulungiselelo oluphakathi kweenkqubo;
• ulungiselelo olusekwe kulwazi lweprofayili;
• ukulungiswa kwinqanaba lendibano (LTO);

Kwakhona ifomathi yangaphakathi ye-gcov ngoku yi-JSON, kunye nokhetho olutsha --sebenzisa-ubushushu-imibala ibandakanya imigca yekhowudi esekelwe kwindlela esetyenziswa ngayo.

Iilwimi

Umgangatho kunye nokugqibelela kokuphunyezwa OpenACC Iilwimi C, C ++, kunye neFortran ziyaqhubeka nokuphucula.

Iilwimi ezifana noC

• Inxalenye yenkxaso ye-OpenMP 5.0 iphunyeziwe;
• Umsebenzi ongezelelweyo __builtin_convertvector;
• Isilumkiso esongeziweyo -Waddress-of-packed-ilungu;
• Ukuphuculwa kwenani lezilumkiso ezikhoyo;
• Umbhalo wemposiso xa ugqithisa inani elingalunganga leengxoxo kwi-macro ngoku kubandakanya ukubhengezwa kwe-macro ngokwayo;
• Uphuculo kwiingcebiso zolungiso lokuchwetheza.

C

• Ixhasa i-_Static_assert ngengxoxo enye ye--std=c2x (ixesha elizayo elisemgangathweni ongu-C);
• Isilumkiso esitsha -Ixabiso eliqinisekileyo, ebamba udidi lwempikiswano engalunganga yemisebenzi efana ne abs().

C ++

• Izilumkiso ezitsha: -Ikopi-ayihoywanga,
  -Wint-list-lifetime,
  -Ukushukuma-wredundant,
  -Wpessimizing-ntshukumo,
  -Wclass-ukuguqulwa;
• Umsebenzi uyaqhubeka ukuphumeza amanqaku amatsha ukusuka kwinqanaba elizayo C++2a;
• I-frontend ngoku igcina ulwazi oluchanekileyo malunga nenani leempawu zekhowudi yomthombo, okuvumela ukuba ubonise ulwazi oluthe kratya kwi-diagnostics;
• Uphononongo oluphuculweyo lwemisebenzi elayishwe ngokugqithisileyo, abasebenzisi bokubini, iifowuni zokusebenza kunye nemitya yefomathi;
• Ukulungiswa okuzenzekelayo okongeziweyo okuxhaswa ziimeko-bume ezithile zophuhliso lwenani leempazamo ezidumileyo (izibiki ezilahlekileyo, izithuba zamagama, ii-typos, njl. njl.).

libstdc++

• Ukuphunyezwa kwe-C++17 akusavavanywa;
• Yongezwa i-algorithms ehambelanayo, , , A ayisafuni -lstdc++fs;
• Uphuculo lovavanyo lwenkxaso ye-C++2a ( , , std::bhind_ngaphambili, njl.);
• Inkxaso yokuvula imijelo yeefayile kwiiWindows ezineendlela zazo eziqulathe amagama angengawo;
• Inkxaso yokuqala kwiiWindows;
• Inkxaso yokuqala ye-Networking TS.

D

D inguqulelo yolwimi 2.076 ibandakanyiwe kwi-GCC.

UFortran

• Inkxaso epheleleyo ye-asynchronous I/O;
• Iphunyezwe ingxabano EMVA ye-MINLOC kunye ne-MAXLOC;
• Iphunyeziwe IFINDLOC kunye IS_CONTIGOUS imisebenzi;
• I-syntax yokufikelela kumacandelo amanani antsonkothileyo iphunyeziwe: c%re kunye ne-c%im;
• Isivakalisi esiphunyeziweyo str%len kunye nohlobo lwe%;
• Izichazi zeC eziphunyeziweyo kunye nesihloko se-ISO_Fortran_binding.h;
• Iimfuno ezikhululekileyo zesiphumo se-MAX kunye ne-MIN imisebenzi xa enye yeengxoxo iyi-NaN;
• Inketho eyongeziweyo -fdec-zibandakanya;
• Umyalelo wongeziwe KWAKHIWE.

libgccjit

• Umsebenzi ongezelelweyo gcc_jit_context_add_driver_option.

Okunye

Uninzi lwezakhiwo- kunye notshintsho lwe-OS olukhethekileyo.

umthombo: linux.org.ru