https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109093
--- Comment #44 from GCC Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by H.J. Lu <h...@gcc.gnu.org>: https://gcc.gnu.org/g:b9ea3b2ef98048f93b02fcd6ff51777bce1676c2 commit r16-194-gb9ea3b2ef98048f93b02fcd6ff51777bce1676c2 Author: H.J. Lu <hjl.to...@gmail.com> Date: Tue Mar 14 11:41:51 2023 -0700 x86: Properly find the maximum stack slot alignment Don't assume that stack slots can only be accessed by stack or frame registers. We first find all registers defined by stack or frame registers. Then check memory accesses by such registers, including stack and frame registers. gcc/ PR target/109780 PR target/109093 * config/i386/i386.cc (stack_access_data): New. (ix86_update_stack_alignment): Likewise. (ix86_find_all_reg_use_1): Likewise. (ix86_find_all_reg_use): Likewise. (ix86_find_max_used_stack_alignment): Also check memory accesses from registers defined by stack or frame registers. gcc/testsuite/ PR target/109780 PR target/109093 * g++.target/i386/pr109780-1.C: New test. * gcc.target/i386/pr109093-1.c: Likewise. * gcc.target/i386/pr109780-1.c: Likewise. * gcc.target/i386/pr109780-2.c: Likewise. * gcc.target/i386/pr109780-3.c: Likewise. Signed-off-by: H.J. Lu <hjl.to...@gmail.com> Co-Authored-By: Uros Bizjak <ubiz...@gmail.com>
