[PATCH][PR target/79295][7 regression] fix ppc bcdadd insn pattern

[Aaron Sawdey]

The bcdadd pattern has the wrong constraints. The change Meissner
supplied in PR79295 fixes the issue.

Successfully bootstrapped on ppc64le, ok for trunk if regtest also
passes?

2017-02-09  Aaron Sawdey  <acsaw...@linux.vnet.ibm.com>

        PR target/79295
        * config/rs6000/altivec.md (bcd<bcd_add_sub>): Fix constraints.

-- 
Aaron Sawdey, Ph.D.  acsaw...@linux.vnet.ibm.com
050-2/C113  (507) 253-7520 home: 507/263-0782
IBM Linux Technology Center - PPC Toolchain
Index: gcc/config/rs6000/altivec.md
===================================================================
--- gcc/config/rs6000/altivec.md	(revision 245221)
+++ gcc/config/rs6000/altivec.md	(working copy)
@@ -3710,10 +3710,10 @@
 (define_code_iterator BCD_TEST [eq lt gt unordered])
 
 (define_insn "bcd<bcd_add_sub>"
-  [(set (match_operand:V1TI 0 "register_operand" "")
-	(unspec:V1TI [(match_operand:V1TI 1 "register_operand" "")
-		      (match_operand:V1TI 2 "register_operand" "")
-		      (match_operand:QI 3 "const_0_to_1_operand" "")]
+  [(set (match_operand:V1TI 0 "gpc_reg_operand" "=v")
+	(unspec:V1TI [(match_operand:V1TI 1 "gpc_reg_operand" "v")
+		      (match_operand:V1TI 2 "gpc_reg_operand" "v")
+		      (match_operand:QI 3 "const_0_to_1_operand" "n")]
 		     UNSPEC_BCD_ADD_SUB))
    (clobber (reg:CCFP CR6_REGNO))]
   "TARGET_P8_VECTOR"