[ARM][4/4] Simplify checks for CONST_INT_P and comparison against 1/0

	* config/arm/neon.md (ashldi3_neon):  Replace comparison of INTVAL of
	operands[2] against 1 with comparison against CONST1_RTX.
	(<shift>di3_neon): Likewise.
	* config/arm/predicates.md (const0_operand): Replace with comparison
	against CONST0_RTX.

From-SVN: r236641

gcc/ChangeLog

 2016-05-24  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
 
+	* config/arm/neon.md (ashldi3_neon):  Replace comparison of INTVAL of
+	operands[2] against 1 with comparison against CONST1_RTX.
+	(<shift>di3_neon): Likewise.
+	* config/arm/predicates.md (const0_operand): Replace with comparison
+	against CONST0_RTX.
+
+2016-05-24  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
+
 	* config/arm/arm.md (ashldi3): Replace comparison of INTVAL of
 	operands[2] against 1 with comparison against CONST1_RTX.
 	(ashrdi3): Likewise.

gcc/config/arm/neon.md

@@ -1082,7 +1082,7 @@
       }
     else
       {
-	if (CONST_INT_P (operands[2]) && INTVAL (operands[2]) == 1
+	if (operands[2] == CONST1_RTX (SImode)
 	    && (!reg_overlap_mentioned_p (operands[0], operands[1])
 		|| REGNO (operands[0]) == REGNO (operands[1])))
 	  /* This clobbers CC.  */
@@ -1184,7 +1184,7 @@
       }
     else
       {
-	if (CONST_INT_P (operands[2]) && INTVAL (operands[2]) == 1
+	if (operands[2] == CONST1_RTX (SImode)
 	    && (!reg_overlap_mentioned_p (operands[0], operands[1])
 		|| REGNO (operands[0]) == REGNO (operands[1])))
 	  /* This clobbers CC.  */

gcc/config/arm/predicates.md

@@ -141,8 +141,7 @@
        (match_test "const_ok_for_arm (~INTVAL (op))")))
 
 (define_predicate "const0_operand"
-  (and (match_code "const_int")
-       (match_test "INTVAL (op) == 0")))
+  (match_test "op == CONST0_RTX (mode)"))
 
 ;; Something valid on the RHS of an ARM data-processing instruction
 (define_predicate "arm_rhs_operand"