https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120817
--- Comment #25 from GCC Commits <cvs-commit at gcc dot gnu.org> --- The releases/gcc-13 branch has been updated by Richard Biener <[email protected]>: https://gcc.gnu.org/g:4216bf468c68aacfa29a11296af9ba9967756bed commit r13-9944-g4216bf468c68aacfa29a11296af9ba9967756bed Author: Richard Biener <[email protected]> Date: Mon Jul 7 09:56:50 2025 +0200 tree-optimization/120817 - bogus DSE of .MASK_STORE DSE used ao_ref_init_from_ptr_and_size for .MASK_STORE but alias-analysis will use the specified size to disambiguate against smaller objects. For .MASK_STORE we instead have to make the access size unspecified but we can still constrain the access extent based on the maximum size possible. PR tree-optimization/120817 * tree-ssa-dse.cc (initialize_ao_ref_for_dse): Use ao_ref_init_from_ptr_and_range with unknown size for .MASK_STORE and .MASK_LEN_STORE. * gcc.dg/vect/pr120817.c: New testcase. (cherry picked from commit 439b14e222571da76da2bfec04b9035fb9f1862d) --- Comment #26 from GCC Commits <cvs-commit at gcc dot gnu.org> --- The releases/gcc-13 branch has been updated by Richard Biener <[email protected]>: https://gcc.gnu.org/g:5c39b97a7ff3aa209ceb8bf03d2a89351e20105f commit r13-9945-g5c39b97a7ff3aa209ceb8bf03d2a89351e20105f Author: Tamar Christina <[email protected]> Date: Mon Jul 7 17:05:01 2025 +0100 testsuite: add sve hw check to testcase [PR120817] Drop down from SVE2 to SVE1 as that's the minimum required for the test, and since it's a mid-end test add the aarch64_sve_hw check. gcc/testsuite/ChangeLog: PR tree-optimization/120817 * gcc.dg/vect/pr120817.c: Add SVE HW check. (cherry picked from commit 4b9f760c511a4ef3a390dd6cfab80bada57c2535)
