https://gcc.gnu.org/bugzilla/show_bug.cgi?id=38474
--- Comment #100 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Richard Biener <rgue...@gcc.gnu.org>: https://gcc.gnu.org/g:3f16a1678156035bbe73b217fbce4d9c27d1d559 commit r11-7254-g3f16a1678156035bbe73b217fbce4d9c27d1d559 Author: Richard Biener <rguent...@suse.de> Date: Tue Feb 16 12:42:26 2021 +0100 tree-optimization/38474 - improve PTA varinfo sorting This improves a previous heuristic to sort address-taken variables first (because those appear in points-to bitmaps) by tracking which variables appear in ADDRESSOF constraints (there's also graph->address_taken but that's computed only later). This shaves off 30s worth of compile-time for the full testcase in PR38474 (which then still takes 965s to compile at -O2). 2021-02-16 Richard Biener <rguent...@suse.de> PR tree-optimization/38474 * tree-ssa-structalias.c (variable_info::address_taken): New. (new_var_info): Initialize address_taken. (process_constraint): Set address_taken. (solve_constraints): Use the new address_taken flag rather than is_reg_var for sorting variables. (dump_constraint): Dump the variable number if the name is just NULL.
