https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77937
Markus Trippelsdorf <trippels at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Last reconfirmed| |2016-10-11 CC| |wschmidt at gcc dot gnu.org Ever confirmed|0 |1 --- Comment #1 from Markus Trippelsdorf <trippels at gcc dot gnu.org> --- Started with r240945: commit 41b5b58f52ee35f1efe7eeac644db6992dac5499 Author: wschmidt <wschmidt@138bc75d-0d04-0410-961f-82ee72b054a4> Date: Mon Oct 10 18:39:41 2016 +0000 2016-10-10 Bill Schmidt <wschm...@linux.vnet.ibm.com> PR tree-optimization/77824 * gimple-ssa-strength-reduction.c (stmt_cost): Explicitly return zero cost for copies. (find_candidates_dom_walker::before_dom_children): Replace MODIFY_EXPR with SSA_NAME. (replace_mult_candidate): Likewise. (replace_profitable_candidates): Likewise.