contrib/gcc/cse.c

2283       /* This is like the general case, except that it only counts
7319 count_reg_usage (rtx x, int *counts, rtx dest, int incr)
7333 	counts[REGNO (x)] += incr;
7350 	count_reg_usage (XEXP (XEXP (x, 0), 0), counts, NULL_RTX, incr);
7356 	count_reg_usage (SET_DEST (x), counts, NULL_RTX, incr);
7357       count_reg_usage (SET_SRC (x), counts,
7370 	count_reg_usage (CALL_INSN_FUNCTION_USAGE (x), counts, dest, incr);
7371       count_reg_usage (PATTERN (x), counts, dest, incr);
7386 		count_reg_usage (XEXP (eqv, 0), counts, dest, incr);
7391 	    count_reg_usage (eqv, counts, dest, incr);
7401 	count_reg_usage (XEXP (x, 0), counts, NULL_RTX, incr);
7403       count_reg_usage (XEXP (x, 1), counts, NULL_RTX, incr);
7413 	count_reg_usage (ASM_OPERANDS_INPUT (x, i), counts, dest, incr);
7427 	count_reg_usage (XEXP (x, i), counts, dest, incr);
7430 	  count_reg_usage (XVECEXP (x, i, j), counts, dest, incr);
7438 	    int *counts)
7457 	   || counts[REGNO (SET_DEST (set))] != 0
7466 insn_live_p (rtx insn, int *counts)
7472     return set_live_p (PATTERN (insn), insn, counts);
7481 	      if (set_live_p (elt, insn, counts))
7496 dead_libcall_p (rtx insn, int *counts)
7517   /* While changing insn, we must update the counts accordingly.  */
7518   count_reg_usage (insn, counts, NULL_RTX, -1);
7522       count_reg_usage (insn, counts, NULL_RTX, 1);
7533 	  count_reg_usage (insn, counts, NULL_RTX, 1);
7540   count_reg_usage (insn, counts, NULL_RTX, 1);
7555   int *counts;
7562   counts = XCNEWVEC (int, nreg);
7565       count_reg_usage (insn, counts, NULL_RTX, 1);
7569      usage counts for registers it uses.
7591 	  dead_libcall = dead_libcall_p (insn, counts);
7596 	live_insn = insn_live_p (insn, counts);
7603 	  count_reg_usage (insn, counts, NULL_RTX, -1);
7619   free (counts);