Bug #76510 [Com]: file_exists() stopped working for phar:// in PHP 7.3

Edit report at https://bugs.php.net/bug.php?id=76510&edit=1 ID: 76510 Comment by: bugs dot php dot net at majkl578 dot cz Reported by: sebastian@php.net Summary: file_exists() stopped working for phar:// in PHP 7.3 Status: Open Type: Bug Package: PHAR related Operating System: Linux PHP Version: 7.3Git-2018-06-21 (Git) Block user comment: N Private report: N New Comment: Traced down to optimize-strlen GCC optimization (part of -O2). does not work: -O2 works: -O2 -fno-optimize-strlen Previous Comments: ------------------------------------------------------------------------ [2018-08-03 21:19:06] bugs dot php dot net at majkl578 dot cz Did some digging using php-7.3.0beta1 tag and provided PHPUnit repro script in OP. Compiling PHP with gcc-8 as such: git clean -xdf && ./buildconf --force && ./configure CC=gcc-8 CFLAGS=XXX && make -j 12 With various GCC optimization levels, the results are: gcc-8 with -O0 works gcc-8 with -O1 works gcc-8 with -O2 does not work gcc-8 with -O3 does not work gcc-8 with -Og works gcc-8 with -Os works gcc-8 with -Ofast does not compile ------------------------------------------------------------------------ [2018-06-29 12:01:30] sebastian@php.net Interesting. Any idea what might be different on my system that would cause this? What I find weird is that you were able to reproduce the issue initially but now you no longer can while I am still seeing it. ------------------------------------------------------------------------ [2018-06-29 08:52:29] dc dot link at yahoo dot fr Before that I update the phpunit repository did composer update. ------------------------------------------------------------------------ [2018-06-29 08:51:18] dc dot link at yahoo dot fr Did this git fetch --prune git reset --hard git clean -xdf git checkout master git rebase origin/master ./buildconf --force ./configure --prefix=/tmp/PHP --disable-cgi --enable-opcache --enable-opcache-file --with-zlib --with-xsl=/usr --enable-mbstring --enable-bcmath --with-gmp --with-openssl --with-bz2 --enable-soap --enable-intl --enable-pcntl --with-tidy --with-curl --enable-zip --with-readline --without-pear --enable-phpdbg /tmp/PHP/bin/php ../../../phpunit PHPUnit 7.3-g11d92ae06 by Sebastian Bergmann and contributors. Runtime: PHP 7.3.0-dev Configuration: /home/test/Contribs/php-src/phpunit/tests/_files/phpunit-example-extension/phpunit.xml Extension: phpunit/phpunit-example-extension 3.0.3 . 1 / 1 (100%) Time: 386 ms, Memory: 4.00MB OK (1 test, 1 assertion) ------------------------------------------------------------------------ [2018-06-28 16:58:50] sebastian@php.net In case it matters, here is how I build PHP 7.3: git fetch --prune git reset --hard git clean -xdf git checkout master git rebase origin/master ./buildconf --force ./configure --prefix=/usr/local/php-7.3 --disable-cgi --enable-opcache --enable-opcache-file --with-zlib --with-xsl=/usr --enable-mbstring --enable-bcmath --with-gmp --with-openssl --with-bz2 --enable-soap --enable-intl --enable-pcntl --with-tidy --with-curl --enable-zip --with-readline --without-pear --enable-phpdbg make -j5 make install ------------------------------------------------------------------------ The remainder of the comments for this report are too long. To view the rest of the comments, please view the bug report online at https://bugs.php.net/bug.php?id=76510 -- Edit this bug report at https://bugs.php.net/bug.php?id=76510&edit=1