https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116554
--- Comment #2 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:592a335de563a3a9e36d362c5b9f3fb0a990c1d8 commit r15-3345-g592a335de563a3a9e36d362c5b9f3fb0a990c1d8 Author: Andrew Pinski <quic_apin...@quicinc.com> Date: Sat Aug 31 17:23:19 2024 -0700 slsr: Use simple_dce_from_worklist in SLSR [PR116554] While working on a phiopt patch, it was noticed that SLSR would leave around some unused ssa names. Let's add simple_dce_from_worklist usage to SLSR to remove the dead statements. This should give a small improvemnent for passes afterwards. Boostrapped and tested on x86_64. gcc/ChangeLog: PR tree-optimization/116554 * gimple-ssa-strength-reduction.cc: Include tree-ssa-dce.h. (replace_mult_candidate): Add sdce_worklist argument, mark the rhs1/rhs2 for maybe dceing. (replace_unconditional_candidate): Add sdce_worklist argument, Update call to replace_mult_candidate. (replace_conditional_candidate): Add sdce_worklist argument, update call to replace_mult_candidate. (replace_uncond_cands_and_profitable_phis): Add sdce_worklist argument, update call to replace_conditional_candidate, replace_unconditional_candidate, and replace_uncond_cands_and_profitable_phis. (replace_one_candidate): Add sdce_worklist argument, mark the orig_rhs1/orig_rhs2 for maybe dceing. (replace_profitable_candidates): Add sdce_worklist argument, update call to replace_one_candidate and replace_profitable_candidates. (analyze_candidates_and_replace): Call simple_dce_from_worklist and update calls to replace_profitable_candidates, and replace_uncond_cands_and_profitable_phis. Signed-off-by: Andrew Pinski <quic_apin...@quicinc.com>
