(define_function_unit): Add support for RIOS2 asymmetric integer

units.

From-SVN: r5813

gcc/config/rs6000/rs6000.md

@@ -47,22 +47,22 @@
 
 (define_function_unit "lsu" 1 0
   (and (eq_attr "type" "load")
-       (eq_attr "cpu" "ppc603,ppc604,ppc620"))
+       (eq_attr "cpu" "rios2,ppc603,ppc604,ppc620"))
   2 0)
 
 (define_function_unit "lsu" 1 0
   (and (eq_attr "type" "fpload")
-       (eq_attr "cpu" "ppc603,ppc604,ppc620"))
+       (eq_attr "cpu" "rios2,ppc603,ppc604,ppc620"))
   2 0)
 
 (define_function_unit "iu" 1 0
   (and (eq_attr "type" "load")
-       (eq_attr "cpu" "rios1,rios2"))
+       (eq_attr "cpu" "rios1"))
   2 0)
 
 (define_function_unit "iu" 1 0
   (and (eq_attr "type" "fpload")
-       (eq_attr "cpu" "rios1,rios2"))
+       (eq_attr "cpu" "rios1"))
   3 0)
 
 (define_function_unit "iu" 1 0
@@ -72,11 +72,6 @@
 
 (define_function_unit "iu" 1 0
   (and (eq_attr "type" "imul")
-       (eq_attr "cpu" "rios2"))
-  2 0)
-
-(define_function_unit "iu" 1 0
-  (and (eq_attr "type" "imul")
        (eq_attr "cpu" "ppc601,ppc603,ppc604,ppc620"))
   5 0)
 
@@ -87,11 +82,6 @@
 
 (define_function_unit "iu" 1 0
   (and (eq_attr "type" "idiv")
-       (eq_attr "cpu" "rios2"))
-  13 0)
-
-(define_function_unit "iu" 1 0
-  (and (eq_attr "type" "idiv")
        (eq_attr "cpu" "ppc601,ppc603,ppc604,ppc620"))
   36 0)
 
@@ -173,6 +163,21 @@
        (eq_attr "cpu" "ppc603,ppc604,ppc620"))
   31 0)
 
+(define_function_unit "iu2" 2 0
+  (and (eq_attr "type" "integer")
+       (eq_attr "cpu" "rios2"))
+  1 0
+  [(eq_attr "type" "imul,idiv")])
+(define_function_unit "imuldiv" 1 0
+  (and (eq_attr "type" "imul")
+       (eq_attr "cpu" "rios2"))
+  2 0
+  [(eq_attr "type" "integer")])
+(define_function_unit "imuldiv" 1 0
+  (and (eq_attr "type" "idiv")
+       (eq_attr "cpu" "rios2"))
+  13 0
+  [(eq_attr "type" "integer")])
 (define_function_unit "fpu2" 2 0
   (and (eq_attr "type" "fp")
        (eq_attr "cpu" "rios2"))