Fixes from wilson

From-SVN: r13832

gcc/config/rs6000/rs6000.md

@@ -1185,7 +1185,7 @@
   "!TARGET_POWER && reload_completed"
   [(set (match_dup 2) (ashiftrt:SI (match_dup 1) (const_int 31)))
    (set (match_dup 0) (xor:SI (match_dup 2) (match_dup 1)))
-   (set (match_dup 0) (minus:SI (match_dup 2) (match_dup 0)))]
+   (set (match_dup 0) (minus:SI (match_dup 0) (match_dup 2)))]
   "")
 
 (define_insn ""
@@ -1214,7 +1214,7 @@
   "!TARGET_POWER && reload_completed"
   [(set (match_dup 2) (ashiftrt:SI (match_dup 1) (const_int 31)))
    (set (match_dup 0) (xor:SI (match_dup 2) (match_dup 1)))
-   (set (match_dup 0) (minus:SI (match_dup 0) (match_dup 2)))]
+   (set (match_dup 0) (minus:SI (match_dup 2) (match_dup 0)))]
   "")
 
 (define_insn "negsi2"
@@ -4185,7 +4185,7 @@
 ;; Shift by a variable amount is too complex to be worth open-coding.  We
 ;; just handle shifts by constants.
 (define_insn "ashrdi3_power"
-  [(set (match_operand:DI 0 "gpc_reg_operand" "=r,r")
+  [(set (match_operand:DI 0 "gpc_reg_operand" "=&r,r")
 	(ashiftrt:DI (match_operand:DI 1 "gpc_reg_operand" "r,r")
 		     (match_operand:SI 2 "const_int_operand" "M,i")))
    (clobber (match_scratch:SI 3 "=X,q"))]