Don't xfail on s390.

The attached patch removes the XFAIL in attr-alloc_size-11.c on
s390.  (PR 79356).
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79356

gcc/testsuite/ChangeLog:

2017-04-03  Dominik Vogt  <vogt@linux.vnet.ibm.com>

	PR testsuite/79356
	* gcc.dg/attr-alloc_size-11.c: Don't xfail on s390.

From-SVN: r246645

gcc/testsuite/ChangeLog

+2017-04-03  Dominik Vogt  <vogt@linux.vnet.ibm.com>
+
+	PR testsuite/79356
+	* gcc.dg/attr-alloc_size-11.c: Don't xfail on s390.
+
 2017-04-03  Robin Dapp  <rdapp@linux.vnet.ibm.com>
 
 	* gcc.target/s390/vector/vcond-shift.c (foo, foo2, foo3, baz, baf)

gcc/testsuite/gcc.dg/attr-alloc_size-11.c

@@ -47,7 +47,7 @@ typedef __SIZE_TYPE__    size_t;
 
 /* The following tests fail because of missing range information.  The xfail
    exclusions are PR79356.  */
-TEST (signed char, SCHAR_MIN + 2, ALLOC_MAX);   /* { dg-warning "argument 1 range \\\[13, \[0-9\]+\\\] exceeds maximum object size 12" "missing range info for signed char" { xfail { ! { aarch64*-*-* arm*-*-* ia64-*-* mips*-*-* powerpc*-*-* sparc*-*-* s390x-*-* } } } } */
+TEST (signed char, SCHAR_MIN + 2, ALLOC_MAX);   /* { dg-warning "argument 1 range \\\[13, \[0-9\]+\\\] exceeds maximum object size 12" "missing range info for signed char" { xfail { ! { aarch64*-*-* arm*-*-* ia64-*-* mips*-*-* powerpc*-*-* sparc*-*-* s390*-*-* } } } } */
 TEST (short, SHRT_MIN + 2, ALLOC_MAX); /* { dg-warning "argument 1 range \\\[13, \[0-9\]+\\\] exceeds maximum object size 12" "missing range info for short" { xfail { ! { aarch64*-*-* arm*-*-* ia64-*-* mips*-*-* powerpc*-*-* sparc*-*-* s390x-*-* } } } } */
 TEST (int, INT_MIN + 2, ALLOC_MAX);    /* { dg-warning "argument 1 range \\\[13, \[0-9\]+\\\] exceeds maximum object size 12" } */
 TEST (int, -3, ALLOC_MAX);             /* { dg-warning "argument 1 range \\\[13, \[0-9\]+\\\] exceeds maximum object size 12" } */