https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114415
--- Comment #12 from GCC Commits <cvs-commit at gcc dot gnu.org> --- The releases/gcc-13 branch has been updated by Vladimir Makarov <vmaka...@gcc.gnu.org>: https://gcc.gnu.org/g:e30211cb0b3a2b88959e9bc40626a17461de52de commit r13-8740-ge30211cb0b3a2b88959e9bc40626a17461de52de Author: Vladimir N. Makarov <vmaka...@redhat.com> Date: Thu Apr 4 16:04:04 2024 -0400 [PR114415][scheduler]: Fixing wrong code generation For the test case, the insn scheduler (working for live range shrinkage) moves insns modifying stack memory before an insn reserving the stack memory. Comments in the patch contains more details about the problem and its solution. gcc/ChangeLog: PR rtl-optimization/114415 * sched-deps.cc (add_insn_mem_dependence): Add memory check for mem argument. (sched_analyze_1): Treat stack pointer modification as memory read. (sched_analyze_2, sched_analyze_insn): Add memory guard for processing pending_read_mems. * sched-int.h (deps_desc): Add comment to pending_read_mems. gcc/testsuite/ChangeLog: PR rtl-optimization/114415 * gcc.target/i386/pr114415.c: New test.
