546d314cf6
2011-12-05 Richard Guenther <rguenther@suse.de> PR tree-optimization/50904 * tree-ssa-loop-im.c (struct mem_ref): Remove vops member. (MEM_ANALYZABLE): New. (memory_references): Remove clobbered_vops and vop_ref_map members, add all_refs_stored_in_loop member. (memref_free): Adjust. (mem_ref_alloc): Likewise. (gather_mem_refs_stmt): Do not record clobbers, instead record refs for unanalyzable stmts. (gather_mem_refs_in_loops): Do not propagate clobbers. (struct vop_to_refs_elt, vtoe_hash, vtoe_eq, vtoe_free, record_vop_access, get_vop_accesses, get_vop_stores, add_vop_ref_mapping): Remove. (create_vop_ref_mapping_loop): Adjust to simply record all stores. (analyze_memory_references): Adjust. (refs_independent_p): Check for not analyzable refs. (can_sm_ref_p): Likewise. (ref_indep_loop_p_1): Simplify. (tree_ssa_lim_finalize): Adjust. * tree-ssa-loop-im.c (stmt_cost): Simplify, use LIM_EXPENSIVE rather than magic constants. Assign zero cost to PAREN_EXPR and SSA_NAME copies. Assign cost proportional to the vector size for vector constructors. From-SVN: r182010 |
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