[Bug other/89804] New: optimization opportunity: move variable from stack to register

2019-03-23 Thread claprix at yandex dot ru
Priority: P3 Component: other Assignee: unassigned at gcc dot gnu.org Reporter: claprix at yandex dot ru Target Milestone: --- Description basically is here https://godbolt.org/z/vULPAZ As I know from https://stackoverflow.com/questions/55314885/compiler

[Bug c++/82345] low performance (comparing to clang)

2017-09-27 Thread claprix at yandex dot ru
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82345 --- Comment #3 from Eugene --- Created attachment 42249 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=42249&action=edit source code

[Bug c++/82345] low performance (comparing to clang)

2017-09-27 Thread claprix at yandex dot ru
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82345 --- Comment #1 from Eugene --- Source file https://yadi.sk/d/FqXH-4Y63NGeSw

[Bug c++/82345] New: low performance (comparing to clang)

2017-09-27 Thread claprix at yandex dot ru
++ Assignee: unassigned at gcc dot gnu.org Reporter: claprix at yandex dot ru Target Milestone: --- String search is slow for this code. $ g++ -O2 -DNDEBUG -std=c++14 gcc_perf_buf.cc && time ./a.out shodan/huge01.txt real0m0.470s user0m0.367s sys 0m0.104s $ cla

[Bug sanitizer/68260] New: false positive with tsan

2015-11-09 Thread claprix at yandex dot ru
Assignee: unassigned at gcc dot gnu.org Reporter: claprix at yandex dot ru CC: dodji at gcc dot gnu.org, dvyukov at gcc dot gnu.org, jakub at gcc dot gnu.org, kcc at gcc dot gnu.org Target Milestone: --- Hello. gcc --version gcc (Ubuntu 5.2.1-22ubuntu2