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2004-10-27 Daniel Berlin <dberlin@dberlin.org> Fix PR tree-optimization/17133 * tree-cfg.c (rewrite_to_new_ssa_names_bb): Also rewrite must def kill operand. * tree-flow-inline.h: V_MUST_DEF_OP became V_MUST_DEF_RESULT. (get_v_must_def_result_ptr): Modify for new structure of v_must_defs array. (get_v_must_def_kill_ptr): New. (op_iter_next_use): Add support for the kill that occurs in V_MUST_DEFs. (op_iter_next_tree): Ditto. Also V_MAY_DEF_OP became V_MAY_DEF_RESULT. (op_iter_next_def): V_MAY_DEF_OP became V_MAY_DEF_RESULT. (op_iter_init): Initialize new mustu members. (op_iter_next_mustdef): New function. (op_iter_init_mustdef): Ditto. * tree-flow.h (rewrite_def_def_chains): New function. * tree-into-ssa.c (mark_def_sites): Handle mustdefkill operands. (ssa_mark_def_sites): Ditto. (rewrite_stmt): Ditto. (ssa_rewrite_stmt): Ditto. (rewrite_blocks): Factor out from rewrite_into_ssa. (mark_def_block_sites): Ditto. (rewrite_def_def_chains): New function, just rewrites def-def chains without phi node insertion. * tree-pass.h (TODO_fix_def_def_chains): New todo flag. * tree-optimize.c (execute_todo): Handle TODO_fix_def_def_chains. * tree-pretty-print.c (dump_vops): Print out MUST_DEF's so that they include the rhs now. * tree-ssa-ccp.c (visit_assignment): V_MUST_DEF_OP became V_MUST_DEF_RESULT. * tree-ssa-dce.c (mark_operand_necessary): Add phionly argument. Update callers. (mark_really_necessary_kill_operand_phis): New function. (perform_tree_ssa_dce): Call it. (pass_dce): Add TODO_fix_def_def_chains. (pass_cd_dce): Ditto. * tree-ssa-loop-im.c (determine_max_movement): Look at kills as well. (rewrite_mem_refs): Ditto. * tree-ssa-loop-manip.c (find_uses_to_rename_stmt): Look at kills as well. * tree-ssa-operands.c (allocate_v_may_def_optype): v_may_def_operand_type_t became v_def_use_operand_type_t. (allocate_v_must_def_optype) Ditto. (finalize_ssa_v_must_defs): Update for new operand type, as well as setting the use portion as well. (copy_virtual_operands): Copy the kill operand as well. (create_ssa_artficial_load_stmt): V_MUST_DEF_OP became V_MUST_DEF_RESULT. * tree-ssa-operands.h (v_may_def_operand_type): Renamed to v_def_use_operand_type. (v_must_def_optype_d): Use v_def_use_operand_type. (V_MUST_DEF_OP_*): Renamed to V_MUST_DEF_RESULT_* (V_MUST_DEF_KILL_*): New macros. (struct ssa_operand_iterator_d): Add num_v_mustu and v_mustu_i members. Rename existing must_i and num_v_must members to mustd_i and num_v_mustd. (SSA_OP_VMUSTDEFKILL): New flag. (SSA_OP_VIRTUAL_KILLS): New flag. (SSA_OP_ALL_OPERANDS): Add in SSA_OP_ALL_KILLS. (SSA_OP_ALL_KILLS): New flag. (FOR_EACH_SSA_MUSTDEF_OPERAND): New macro. * tree-ssa.c (verify_ssa): Verify virtual kills as well. * tree-vectorizer.c (vect_create_data_ref_ptr): V_MUST_DEF_OP became V_MUST_DEF_RESULT. (rename_variables_in_bb): Rename kill pointer as well. * tree-dfa.c (compute_immediate_uses_for_stmt): Add kills into the immediate uses. From-SVN: r89695
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