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2011-09-30hw-doloop.c (scan_loop): Compute register usage only for non-debug insns.Bernd Schmidt1-1/+1
* hw-doloop.c (scan_loop): Compute register usage only for non-debug insns. From-SVN: r179379
2011-07-07hw-doloop.c: New file.Bernd Schmidt1-0/+672
* hw-doloop.c: New file. * hw-doloop.h: New file. * Makefile.in (OBJS): Add hw-doloop.o. (hw-doloop.o): New rule. ($(obj_out_file)): Add hw-doloop.h dependency. * config/bfin/bfin.c: Include "hw-doloop.h". (loop_info, DEF_VEC_P for loop_info, loop_info_d): Remove. (bfin_dump_loops, bfin_bb_in_loop, bfin_scan_loop): Remove. (hwloop_optimize): Renamed from bfin_optimize_loop. Argument type changed to hwloop_info. Return bool, true if the loop was successfully optimized. Remove code that was moved to hw-doloop.c, and adjust other parts. (hwloop_fail): New static function, containing parts that used to be in bfin_optimize_loop. (bfin_discover_loop, bfin_discover_loops, free_loops, bfin_reorder_loops): Remove. (hwloop_pattern_reg): New static function. (bfin_doloop_hooks): New variable. (bfin_reorg_loops): Remove most code, call reorg_loops. * config/bfin/bfin.md (doloop_end splitter): Also enable if loop counter is a memory_operand. From-SVN: r175985