Readd 403 support; Move compares well ahead of branch for PowerPC

From-SVN: r10832

gcc/config/rs6000/rs6000.md

@@ -65,7 +65,7 @@
 
 (define_function_unit "iu" 1 0
   (and (eq_attr "type" "load")
-       (eq_attr "cpu" "rios1,ppc601"))
+       (eq_attr "cpu" "rios1,ppc601,ppc403"))
   2 1)
 
 (define_function_unit "iu" 1 0
@@ -87,6 +87,11 @@
 
 (define_function_unit "iu" 1 0
   (and (eq_attr "type" "imul")
+       (eq_attr "cpu" "ppc403"))
+  4 4)
+
+(define_function_unit "iu" 1 0
+  (and (eq_attr "type" "imul")
        (eq_attr "cpu" "ppc601,ppc602,ppc603"))
   5 5)
 
@@ -102,6 +107,11 @@
 
 (define_function_unit "iu" 1 0
   (and (eq_attr "type" "idiv")
+       (eq_attr "cpu" "ppc403"))
+  33 33)
+
+(define_function_unit "iu" 1 0
+  (and (eq_attr "type" "idiv")
        (eq_attr "cpu" "ppc602,ppc603"))
   37 36)
 
@@ -175,7 +185,7 @@
 
 (define_function_unit "bpu" 1 0   
   (and (eq_attr "type" "compare")
-       (eq_attr "cpu" "rios1,rios2,ppc601"))
+       (eq_attr "cpu" "rios1,rios2,ppc403,ppc601,ppc603,ppc604,ppc620"))
   4 1)
 
 ; different machines have different compare timings
@@ -224,7 +234,7 @@
 
 (define_function_unit "bpu" 1 0
   (and (eq_attr "type" "mtjmpr")
-       (eq_attr "cpu" "ppc601,ppc602,ppc603,ppc604,ppc620"))
+       (eq_attr "cpu" "ppc403,ppc601,ppc602,ppc603,ppc604,ppc620"))
   4 0)
 
 ; all jumps/branches are executing on the bpu, in 1 cycle, for all machines.