https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120451
--- Comment #5 from GCC Commits <cvs-commit at gcc dot gnu.org> --- The trunk branch has been updated by Andrew Pinski <pins...@gcc.gnu.org>: https://gcc.gnu.org/g:aa935ce40a777eb0b4a4d3d2e03cf2efb4cf9619 commit r16-1067-gaa935ce40a777eb0b4a4d3d2e03cf2efb4cf9619 Author: Andrew Pinski <quic_apin...@quicinc.com> Date: Mon Jun 2 15:56:20 2025 -0700 switch-conversion: Mark CSWTCH as mergeable [PR120451] When we have a smallish CSWTCH, it could be placed in the rodata.cst16 section so it can be merged with other constants across TUs. The fix is simple; just mark the decl as mergable (DECL_MERGEABLE). DECL_MERGEABLE was added with r14-1500-g4d935f52b0d5c0 specifically to improve these kind of decls. PR tree-optimization/120451 gcc/ChangeLog: * tree-switch-conversion.cc (switch_conversion::build_one_array): Mark the newly created decl as mergable. gcc/testsuite/ChangeLog: * gcc.dg/tree-ssa/cswtch-6.c: New test. Signed-off-by: Andrew Pinski <quic_apin...@quicinc.com>
