GCC 9.1

Pa Meyi 3, kutulutsidwa koyamba kwagulu lachisanu ndi chinayi la GCC kunachitika: GCC 9.1.
Lili ndi kusintha kwakukulu ndi zowonjezera poyerekeza ndi zisanu ndi zitatu
Baibulo.

Zosintha zonse

Zosankha

• Malamulo omwe amavomereza kukula tsopano amathandizira 64-bit values ​​ndi suffixes kuti afotokoze kukula kwake;
• Njira yowonjezera -kuwotcha, kuwongolera kukhathamiritsa komwe kungathe kuwononga mphamvu, kusintha ma code;
• Chowonjezera --kumaliza njira yothandizira kumalizitsa pawokha mu chipolopolo cha lamulo;
• Kuzindikira kwa ma compiler tsopano akuphatikiza manambala amizere (-fno-diagnostics-show-line-manambala) ndi
  lembani zambiri (fno-diagnostics-show-labels);
• Njira yowonjezera -fdiagnostics-format=json kutulutsa zowunikira mumtundu wa JSON;
• Zosankha pakusankha masinthidwe (-chinyengo-ntchito, mwachitsanzo) tsopano akhoza kuvomereza njira zingapo za kuyanjanitsa;
• Zosankha zowonjezera zosefera mndandanda wamafayilo (-fprofile-sefa-mafayilo, -fprofile-osaphatikiza-mafayilo), zomwe zimagwiritsidwa ntchito ndi wolemba mbiri;
• AddressSanitizer tsopano imagwiritsa ntchito mayalikidwe ophatikizika kwambiri kuti igwire zolowa zosavomerezeka pazosintha pa stack;
• Zosintha zambiri zotulutsa -fopt-info;
• Njira yowonjezera -fsave-kukhathamiritsa-mbiri kusungira lipoti lokonzekera ku fayilo;
• Njira yowonjezera -fipa-stack-alignment и -fipa-reference-addressable.

Zatsopano zopangidwa mkati

• __kumanga_kuyembekezera_ndi_kutheka;
• __builtin_ali ndi_makhalidwe;
• __builtin_speculation_safe_value.

Makhalidwe atsopano

• munditumizire.

Zina

Zosintha zambiri zopanga ma code zokhudzana ndi:

• kupanga masinthidwe osinthika;
• inter-procedural optimizations;
• kukhathamiritsa potengera mbiri yanu;
• kukhathamiritsa pa msonkhano siteji (LTO);

Komanso mawonekedwe amkati a gkov tsopano ndi JSON, ndi njira yatsopano --gwiritsani ntchito-mitundu yotentha imakhudza mizere yokongoletsa potengera momwe amagwiritsidwira ntchito.

Zinenero

Ubwino ndi kukwanira kwa kukhazikitsa Chithunzi cha OpenACC zilankhulo C, C ++, ndi Fortran zikupitilizabe kuyenda bwino.

Zilankhulo zonga C

• Kuthandizira pang'ono kwa OpenMP 5.0 kwakhazikitsidwa;
• Anawonjezera ntchito __builtin_convertvector;
• Chenjezo lowonjezera -Wadiresi-ya-odzaza-membala;
• Kusintha kwa machenjezo angapo omwe alipo;
• Mawu olakwika popereka ziwerengero zolakwika pa macro tsopano akuphatikiza kulengeza kwa macro komwe;
• Kusintha kwa malingaliro okonza mataipi.

C

• Thandizani _Static_assert ndi mtsutso umodzi wa -std=c2x (m'tsogolo C muyezo);
• Chenjezo latsopano -Wabsolute-value, yomwe imagwira mkangano wolakwika pamachitidwe ngati abs().

C ++

• Machenjezo atsopano: -Koperani kuchotsedwa,
  -Winit-list-moyo wonse,
  -Kusuntha-kusuntha,
  -Kusokoneza-kusuntha,
  -Wclass-kutembenuka;
• Ntchito ikuchitika yokhazikitsa zatsopano kuchokera mulingo wamtsogolo C++2a;
• The frontend tsopano amasunga zambiri zolondola zokhudza angapo gwero code zinthu, amene amakulolani kusonyeza zambiri mwatsatanetsatane diagnostics;
• Kuwunika kowongolera kwa magwiridwe antchito ochulukira, ogwiritsa ntchito bayinare, kuyimba foni ndi zingwe zamawonekedwe;
• Zosintha zokha zomwe zimathandizidwa ndi malo ena otukuka pazolakwa zingapo zodziwika bwino (mabulano akusowa, malo a mayina, ma typos, ndi zina).

libstdc++

• Kukhazikitsa kwa C ++ 17 sikulinso kuyesa;
• Onjezani ma algorithms ofanana, , , A sichifunanso -lstdc++fs;
• Kuthandizira koyeserera kwa C++2a ( , , std::bind_front, etc.);
• Thandizo lotsegula mitsinje yamafayilo pa Windows omwe njira zake zimakhala ndi zilembo zosagwirizana;
• Thandizo loyamba pa Windows;
• Thandizo loyambirira la Networking TS.

D

D chilankhulo cha 2.076 chikuphatikizidwa mu GCC.

Fortran

• Thandizo lathunthu la asynchronous I/O;
• Kukhazikitsa mtsutso wa BACK wa MINLOC ndi MAXLOC;
• Kukhazikitsa ntchito za FINDLOC ndi IS_CONTIGOUS;
• Mafotokozedwe ofikira zigawo za manambala ovuta akhazikitsidwa: c%re ndi c%im;
• Kukhazikitsidwa kwa syntax str%len ndi mtundu wa%;
• Zofotokozera za C zokhazikitsidwa ndi mutu wa ISO_Fortran_binding.h;
• Zofunikira zopumula pazotsatira za ntchito za MAX ndi MIN pomwe imodzi mwazotsutsa ili NaN;
• Njira yowonjezera -fdec-kuphatikizapo;
• Directive yawonjezedwa BUILTIN.

libgccjit

• Anawonjezera ntchito gcc_jit_context_add_driver_option.

Zina

Zosintha zambiri zomanga- ndi OS-enieni.

Source: linux.org.ru