https://gcc.gnu.org/bugzilla/show_bug.cgi?id=122343
--- Comment #11 from GCC Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by H.J. Lu <[email protected]>: https://gcc.gnu.org/g:4fbe8f4438980082de9e01b6dcd339ea1d8e5d9f commit r16-6229-g4fbe8f4438980082de9e01b6dcd339ea1d8e5d9f Author: H.J. Lu <[email protected]> Date: Wed Dec 17 12:18:15 2025 +0800 cse: Check volatile memory in cselib_redundant_set_p For h8300-elf, gcc.dg/pr114768.c fails when compiled with -O2 -msx since cselib_redundant_set_p returns true when called with (gdb) call debug (set) (set (mem:HI (reg/f:SI 0 r0 [orig:21 p ] [21]) [1 *p_3(D)+0 S2 A16]) (mem/v:HI (reg/f:SI 0 r0 [orig:21 p ] [21]) [1 MEM[(volatile int *)p_3(D)]+0 S2 A16])) (gdb) from reload_cse_regs. Update cselib_redundant_set_p to return false for volatile memory source or destination. gcc/ PR target/122343 * cselib.cc (cselib_redundant_set_p): Return false for volatile memory source or destination. gcc/testsuite/ PR target/122343 * gcc.dg/pr122343-1.c: New test. Signed-off-by: H.J. Lu <[email protected]>
