slsr: Use simple_dce_from_worklist in SLSR [PR116554]HEADtrunkmaster

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_apinski@quicinc.com>

0 files changed, 0 insertions, 0 deletions