https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115610
--- Comment #2 from GCC Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by hongtao Liu <liuho...@gcc.gnu.org>: https://gcc.gnu.org/g:5e1a9f4ccff390ae79a9b9d0d39b325f2b4ea925 commit r15-1733-g5e1a9f4ccff390ae79a9b9d0d39b325f2b4ea925 Author: liuhongt <hongtao....@intel.com> Date: Wed Jun 26 11:17:46 2024 +0800 Define mask as extern instead of uninitialized local variables. The testcases are supposed to scan for vpopcnt{b,w,d,q} operations with k mask, but mask is defined as uninitialized local variable which will be set as 0 at rtl expand phase. And it's further simplified off by late_combine which caused scan assembly failure. Move the definition of mask outside to make the testcases more stable. gcc/testsuite/ChangeLog: PR target/115610 * gcc.target/i386/avx512bitalg-vpopcntb.c: Define mask as extern instead of uninitialized local variables. * gcc.target/i386/avx512bitalg-vpopcntbvl.c: Ditto. * gcc.target/i386/avx512bitalg-vpopcntw.c: Ditto. * gcc.target/i386/avx512bitalg-vpopcntwvl.c: Ditto. * gcc.target/i386/avx512vpopcntdq-vpopcntd.c: Ditto. * gcc.target/i386/avx512vpopcntdq-vpopcntq.c: Ditto.
