[ARM/AArch64] Schedule alu_ext for Cortex-A53.

      * config/arm/cortex-a53.md (cortex_a53_alu_shift): Add alu_ext,
      alus_ext.

From-SVN: r214944

gcc/ChangeLog

+2014-09-05  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
+
+	* config/arm/cortex-a53.md (cortex_a53_alu_shift): Add alu_ext,
+	alus_ext.
+
 2014-09-05  Alan Lawrence  <alan.lawrence@arm.com>
 
 	* config/aarch64/aarch64-simd.md (aarch64_rbit<mode>): New pattern.

gcc/config/arm/cortex-a53.md

@@ -85,7 +85,7 @@
   (and (eq_attr "tune" "cortexa53")
        (eq_attr "type" "alu_shift_imm,alus_shift_imm,\
                         crc,logic_shift_imm,logics_shift_imm,\
-                        alu_shift_reg,alus_shift_reg,\
+                        alu_ext,alus_ext,alu_shift_reg,alus_shift_reg,\
                         logic_shift_reg,logics_shift_reg,\
                         extend,mov_shift,mov_shift_reg,\
                         mvn_shift,mvn_shift_reg"))