[ARM] Adjust clz, rbit and rev patterns for -mrestrict-it.

	* config/arm/arm.md (clzsi2): Set predicable_short_it attr to no.
	(rbitsi2): Likewise.
	(*arm_rev): Set predicable and predicable_short_it attributes.

From-SVN: r213630

gcc/ChangeLog

 2014-08-05  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
 
+	* config/arm/arm.md (clzsi2): Set predicable_short_it attr to no.
+	(rbitsi2): Likewise.
+	(*arm_rev): Set predicable and predicable_short_it attributes.
+
+2014-08-05  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
+
 	* convert.c (convert_to_integer): Guard transformation to lrint by
 	-fno-math-errno.
 

gcc/config/arm/arm.md

@@ -10662,6 +10662,7 @@
   "TARGET_32BIT && arm_arch5"
   "clz%?\\t%0, %1"
   [(set_attr "predicable" "yes")
+   (set_attr "predicable_short_it" "no")
    (set_attr "type" "clz")])
 
 (define_insn "rbitsi2"
@@ -10670,6 +10671,7 @@
   "TARGET_32BIT && arm_arch_thumb2"
   "rbit%?\\t%0, %1"
   [(set_attr "predicable" "yes")
+   (set_attr "predicable_short_it" "no")
    (set_attr "type" "clz")])
 
 (define_expand "ctzsi2"
@@ -10829,6 +10831,8 @@
    rev%?\t%0, %1"
   [(set_attr "arch" "t1,t2,32")
    (set_attr "length" "2,2,4")
+   (set_attr "predicable" "no,yes,yes")
+   (set_attr "predicable_short_it" "no")
    (set_attr "type" "rev")]
 )