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[patch] h8300: Compute the costs of AND in RTX_COSTS.


Hi,

Attached is a patch to compute the costs of AND in RTX_COSTS.

Tested on h8300 port.  Committed.

Kazu Hirata

2002-11-28  Kazu Hirata  <kazu@cs.umass.edu>

	* config/h8300/h8300.c (h8300_and_costs): New.
	* config/h8300/h8300.h (RTX_COSTS): Use h8300_and_costs.
	* config/h8300/h8300-protos.h: Add a prototype for
	h8300_and_costs.

Index: h8300.c
===================================================================
RCS file: /cvs/gcc/gcc/gcc/config/h8300/h8300.c,v
retrieving revision 1.165
diff -u -r1.165 h8300.c
--- h8300.c	27 Nov 2002 22:21:11 -0000	1.165
+++ h8300.c	28 Nov 2002 14:02:09 -0000
@@ -1136,6 +1136,26 @@
 }
 
 int
+h8300_and_costs (x)
+     rtx x;
+{
+  rtx operands[4];
+
+  if (GET_MODE (x) == QImode)
+    return 1;
+
+  if (GET_MODE (x) != HImode
+      && GET_MODE (x) != SImode)
+    return 100;
+
+  operands[0] = NULL;
+  operands[1] = NULL;
+  operands[2] = XEXP (x, 1);
+  operands[3] = x;
+  return compute_logical_op_length (GET_MODE (x), operands);
+}
+
+int
 h8300_shift_costs (x)
      rtx x;
 {
Index: h8300.h
===================================================================
RCS file: /cvs/gcc/gcc/gcc/config/h8300/h8300.h,v
retrieving revision 1.120
diff -u -r1.120 h8300.h
--- h8300.h	27 Nov 2002 22:41:36 -0000	1.120
+++ h8300.h	28 Nov 2002 14:02:10 -0000
@@ -1022,6 +1022,8 @@
    switch on CODE.  */
 
 #define RTX_COSTS(RTX, CODE, OUTER_CODE)		\
+  case AND:						\
+    return COSTS_N_INSNS (h8300_and_costs (RTX));	\
   case MOD:						\
   case DIV:						\
     return 60;						\
Index: h8300-protos.h
===================================================================
RCS file: /cvs/gcc/gcc/gcc/config/h8300/h8300-protos.h,v
retrieving revision 1.33
diff -u -r1.33 h8300-protos.h
--- h8300-protos.h	27 Nov 2002 22:21:11 -0000	1.33
+++ h8300-protos.h	28 Nov 2002 14:02:10 -0000
@@ -32,6 +32,7 @@
 extern const char *output_simode_bld PARAMS ((int, rtx[]));
 extern void print_operand_address PARAMS ((FILE *, rtx));
 extern int const_costs PARAMS ((rtx, enum rtx_code, enum rtx_code));
+extern int h8300_and_costs PARAMS ((rtx));
 extern int h8300_shift_costs PARAMS ((rtx));
 extern void print_operand PARAMS ((FILE *, rtx, int));
 extern void final_prescan_insn PARAMS ((rtx, rtx *, int));


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