contrib/gcc/regclass.c

32 #include "hard-reg-set.h"
135 /* Contains 1 for registers that are set or clobbered by calls.  */
138    fixed_regs.  Which leaves us guessing as to the set of fixed_regs
250   struct reg_info_data *next;	/* next set of reg_info structures */
779   /* If we're globalizing the frame pointer, we need to set the
781      set in fixed_regs.  */
804    and of using memory for each pseudo.  We use this data to set up
977   /* If we get here, we are set up to record the costs of all the
1040   rtx set, note;
1055   set = single_set (insn);
1062   if (set != 0 && REG_P (SET_DEST (set))
1063       && MEM_P (SET_SRC (set))
1068       costs[REGNO (SET_DEST (set))].mem_cost
1069 	-= (MEMORY_MOVE_COST (GET_MODE (SET_DEST (set)),
1072       record_address_regs (GET_MODE (SET_SRC (set)), XEXP (SET_SRC (set), 0),
1078      (set X (ashift CONST Y)) where CONST must be made to
1079      match X. Change it into two insns: (set X CONST)
1080      (set X (ashift X Y)).  If we left this for reloading, it
1413   rtx set;
1824   /* If this insn is a single set copying operand 1 to operand 0
1838   if ((set = single_set (insn)) != 0
1839       && ops[0] == SET_DEST (set) && ops[1] == SET_SRC (set)
1980 	 ??? This code used to set REGNO_POINTER_FLAG in some cases, but
1981 	 that seems bogus since it should only be set when we are sure
2242 	 reg_info pages, and set up the pointers, zero the pages, etc.  */
2426       /* Count a set of the destination if it is a register.  */
2434 	 SET) that are set.  */
2446 	 a pointer, set the destination to be a pointer as well.
2453 	 variable since it should have already been set as a pointer based
2458 	  /* If the destination pseudo is set more than once, then other
2461 	     optimizations).  So only set REG_POINTER on the destination
2462 	     pseudo if this is the only set of that pseudo.  */