2016-06-03 Bernd Schmidt <bschmidt@redhat.com>
- PR tree-optimization/52171
- * builtins.c (expand_cmpstrn_or_cmpmem): Delete, moved elsewhere.
- (expand_builtin_memcmp): New arg RESULT_EQ. All callers changed.
- Look for constant strings. Move some code to emit_block_cmp_hints
- and use it.
- * builtins.def (BUILT_IN_MEMCMP_EQ): New.
- * defaults.h (COMPARE_MAX_PIECES): New macro.
- * expr.c (move_by_pieces_d, store_by_pieces_d): Remove old structs.
- (move_by_pieces_1, store_by_pieces_1, store_by_pieces_2): Remvoe.
- (clear_by_pieces_1): Don't declare. Move definition before use.
- (can_do_by_pieces): New static function.
- (can_move_by_pieces): Use it. Return bool.
- (by_pieces_ninsns): Renamed from move_by_pieces_ninsns. New arg
- OP. All callers changed. Handle COMPARE_BY_PIECES.
- (class pieces_addr); New.
- (pieces_addr::pieces_addr, pieces_addr::decide_autoinc,
- pieces_addr::adjust, pieces_addr::increment_address,
- pieces_addr::maybe_predec, pieces_addr::maybe_postinc): New member
- functions for it.
- (class op_by_pieces_d): New.
- (op_by_pieces_d::op_by_pieces_d, op_by_pieces_d::run): New member
- functions for it.
- (class move_by_pieces_d, class compare_by_pieces_d,
- class store_by_pieces_d): New subclasses of op_by_pieces_d.
- (move_by_pieces_d::prepare_mode, move_by_pieces_d::generate,
- move_by_pieces_d::finish_endp, store_by_pieces_d::prepare_mode,
- store_by_pieces_d::generate, store_by_pieces_d::finish_endp,
- compare_by_pieces_d::generate, compare_by_pieces_d::prepare_mode,
- compare_by_pieces_d::finish_mode): New member functions.
- (compare_by_pieces, emit_block_cmp_via_cmpmem): New static
- functions.
- (expand_cmpstrn_or_cmpmem): Moved here from builtins.c.
- (emit_block_cmp_hints): New function.
- (move_by_pieces, store_by_pieces, clear_by_pieces): Rewrite to just
- use the newly defined classes.
- * expr.h (by_pieces_constfn): New typedef.
- (can_store_by_pieces, store_by_pieces): Use it in arg declarations.
- (emit_block_cmp_hints, expand_cmpstrn_or_cmpmem): Declare.
- (move_by_pieces_ninsns): Don't declare.
- (can_move_by_pieces): Change return value to bool.
- * target.def (TARGET_USE_BY_PIECES_INFRASTRUCTURE_P): Update docs.
- (compare_by_pieces_branch_ratio): New hook.
- * target.h (enum by_pieces_operation): Add COMPARE_BY_PIECES.
- (by_pieces_ninsns): Declare.
- * targethooks.c (default_use_by_pieces_infrastructure_p): Handle
- COMPARE_BY_PIECES.
- (default_compare_by_pieces_branch_ratio): New function.
- * targhooks.h (default_compare_by_pieces_branch_ratio): Declare.
- * doc/tm.texi.in (STORE_MAX_PIECES, COMPARE_MAX_PIECES): Document.
- * doc/tm.texi: Regenerate.
- * tree-ssa-strlen.c: Include "builtins.h".
- (handle_builtin_memcmp): New static function.
- (strlen_optimize_stmt): Call it for BUILT_IN_MEMCMP.
- * tree.c (build_common_builtin_nodes): Create __builtin_memcmp_eq.
+ PR tree-optimization/52171
+ * builtins.c (expand_cmpstrn_or_cmpmem): Delete, moved elsewhere.
+ (expand_builtin_memcmp): New arg RESULT_EQ. All callers changed.
+ Look for constant strings. Move some code to emit_block_cmp_hints
+ and use it.
+ * builtins.def (BUILT_IN_MEMCMP_EQ): New.
+ * defaults.h (COMPARE_MAX_PIECES): New macro.
+ * expr.c (move_by_pieces_d, store_by_pieces_d): Remove old structs.
+ (move_by_pieces_1, store_by_pieces_1, store_by_pieces_2): Remvoe.
+ (clear_by_pieces_1): Don't declare. Move definition before use.
+ (can_do_by_pieces): New static function.
+ (can_move_by_pieces): Use it. Return bool.
+ (by_pieces_ninsns): Renamed from move_by_pieces_ninsns. New arg
+ OP. All callers changed. Handle COMPARE_BY_PIECES.
+ (class pieces_addr); New.
+ (pieces_addr::pieces_addr, pieces_addr::decide_autoinc,
+ pieces_addr::adjust, pieces_addr::increment_address,
+ pieces_addr::maybe_predec, pieces_addr::maybe_postinc): New member
+ functions for it.
+ (class op_by_pieces_d): New.
+ (op_by_pieces_d::op_by_pieces_d, op_by_pieces_d::run): New member
+ functions for it.
+ (class move_by_pieces_d, class compare_by_pieces_d,
+ class store_by_pieces_d): New subclasses of op_by_pieces_d.
+ (move_by_pieces_d::prepare_mode, move_by_pieces_d::generate,
+ move_by_pieces_d::finish_endp, store_by_pieces_d::prepare_mode,
+ store_by_pieces_d::generate, store_by_pieces_d::finish_endp,
+ compare_by_pieces_d::generate, compare_by_pieces_d::prepare_mode,
+ compare_by_pieces_d::finish_mode): New member functions.
+ (compare_by_pieces, emit_block_cmp_via_cmpmem): New static
+ functions.
+ (expand_cmpstrn_or_cmpmem): Moved here from builtins.c.
+ (emit_block_cmp_hints): New function.
+ (move_by_pieces, store_by_pieces, clear_by_pieces): Rewrite to just
+ use the newly defined classes.
+ * expr.h (by_pieces_constfn): New typedef.
+ (can_store_by_pieces, store_by_pieces): Use it in arg declarations.
+ (emit_block_cmp_hints, expand_cmpstrn_or_cmpmem): Declare.
+ (move_by_pieces_ninsns): Don't declare.
+ (can_move_by_pieces): Change return value to bool.
+ * target.def (TARGET_USE_BY_PIECES_INFRASTRUCTURE_P): Update docs.
+ (compare_by_pieces_branch_ratio): New hook.
+ * target.h (enum by_pieces_operation): Add COMPARE_BY_PIECES.
+ (by_pieces_ninsns): Declare.
+ * targethooks.c (default_use_by_pieces_infrastructure_p): Handle
+ COMPARE_BY_PIECES.
+ (default_compare_by_pieces_branch_ratio): New function.
+ * targhooks.h (default_compare_by_pieces_branch_ratio): Declare.
+ * doc/tm.texi.in (STORE_MAX_PIECES, COMPARE_MAX_PIECES): Document.
+ * doc/tm.texi: Regenerate.
+ * tree-ssa-strlen.c: Include "builtins.h".
+ (handle_builtin_memcmp): New static function.
+ (strlen_optimize_stmt): Call it for BUILT_IN_MEMCMP.
+ * tree.c (build_common_builtin_nodes): Create __builtin_memcmp_eq.
2016-06-03 Alan Hayward <alan.hayward@arm.com>
projects / gcc.git / commitdiff