finish up use of 'H' in DImode shifts

From-SVN: r11359

gcc/config/rs6000/rs6000.md

@@ -4434,7 +4434,7 @@
 	(ashiftrt:DI (match_operand:DI 1 "gpc_reg_operand" "r")
 		     (match_operand:SI 2 "reg_or_cint_operand" "ri")))]
   "TARGET_POWERPC64"
-  "srad%I2 %0,%1,%2")
+  "srad%I2 %0,%1,%H2")
 
 (define_insn ""
   [(set (match_operand:CC 0 "cc_reg_operand" "=x")
@@ -4443,7 +4443,7 @@
 		    (const_int 0)))
    (clobber (match_scratch:DI 3 "=r"))]
   "TARGET_POWERPC64"
-  "srad%I2. %3,%1,%2"
+  "srad%I2. %3,%1,%H2"
   [(set_attr "type" "delayed_compare")])
 
 (define_insn ""
@@ -4454,7 +4454,7 @@
    (set (match_operand:DI 0 "gpc_reg_operand" "=r")
 	(ashiftrt:DI (match_dup 1) (match_dup 2)))]
   "TARGET_POWERPC64"
-  "srad%I2. %0,%1,%2"
+  "srad%I2. %0,%1,%H2"
   [(set_attr "type" "delayed_compare")])
 
 (define_insn "anddi3"