https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115277
--- Comment #4 from GCC Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Jan Hubicka <hubi...@gcc.gnu.org>: https://gcc.gnu.org/g:0d19fbc7b0760ce665fa6a88cd40cfa0311358d7 commit r15-2200-g0d19fbc7b0760ce665fa6a88cd40cfa0311358d7 Author: Jan Hubicka <hubi...@ucw.cz> Date: Mon Jul 22 18:01:57 2024 +0200 Compare loop bounds in ipa-icf Hi, this testcase shows another poblem with missing comparators for metadata in ICF. With value ranges available to loop optimizations during early opts we can estimate number of iterations based on guarding condition that can be split away by the fnsplit pass. This patch disables ICF when number of iteraitons does not match. Bootstrapped/regtesed x86_64-linux, will commit it shortly gcc/ChangeLog: PR ipa/115277 * ipa-icf-gimple.cc (func_checker::compare_loops): compare loop bounds. gcc/testsuite/ChangeLog: * gcc.c-torture/compile/pr115277.c: New test.
