[rs6000] int->machine_mode in rs6000-c.c

2017-08-30  Richard Sandiford  <richard.sandiford@linaro.org>

gcc/
	* config/rs6000/rs6000-c.c (altivec_resolve_overloaded_builtin):
	Use machine_mode rather than int for arg1_mode.

From-SVN: r251447

gcc/ChangeLog

+2017-08-30  Richard Sandiford  <richard.sandiford@linaro.org>
+
+	* config/rs6000/rs6000-c.c (altivec_resolve_overloaded_builtin):
+	Use machine_mode rather than int for arg1_mode.
+
 2017-08-29  Michael Meissner  <meissner@linux.vnet.ibm.com>
 
 	PR target/82015

gcc/config/rs6000/rs6000-c.c

@@ -6729,7 +6729,7 @@ altivec_resolve_overloaded_builtin (location_t loc, tree fndecl,
     else if (fcode == P9V_BUILTIN_VEC_VSIEDP)
       {
 	int overloaded_code;
-	int arg1_mode = TYPE_MODE (types[0]);
+	machine_mode arg1_mode = TYPE_MODE (types[0]);
 
 	if (nargs != 2)
 	  {