https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98730
--- Comment #5 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Christophe Lyon <cl...@gcc.gnu.org>: https://gcc.gnu.org/g:31a0ab9213f780d2fa1da6e4879df214c0f247f9 commit r11-6961-g31a0ab9213f780d2fa1da6e4879df214c0f247f9 Author: Christophe Lyon <christophe.l...@linaro.org> Date: Thu Jan 28 17:55:45 2021 +0000 arm: Adjust cost of vector of constant zero Neon vector comparisons have a dedicated version when comparing with constant zero: it means its cost is free. Adjust the cost in arm_rtx_costs_internal accordingly, for Neon only, since MVE does not support this. 2021-01-28 Christophe Lyon <christophe.l...@linaro.org> gcc/ PR target/98730 * config/arm/arm.c (arm_rtx_costs_internal): Adjust cost of vector of constant zero for comparisons. gcc/testsuite/ PR target/98730 * gcc.target/arm/simd/vceqzq_p64.c: Update expected result.