S/390: Accept cdb in load-and-test-fp-1 testcase

The compiler now generates cdb instead of cdbr for comparison with 0.0,
which looks like an improvement to me.

gcc/testsuite/ChangeLog:

2018-11-06  Ilya Leoshkevich  <iii@linux.ibm.com>

	* gcc.target/s390/load-and-test-fp-1.c: Accept cdb.

From-SVN: r265843

gcc/testsuite/ChangeLog

+2018-11-06  Ilya Leoshkevich  <iii@linux.ibm.com>
+
+	* gcc.target/s390/load-and-test-fp-1.c: Accept cdb.
+
 2018-11-06  Jozef Lawrynowicz  <jozef.l@mittosystems.com>
 
 	* gcc/testsuite/gcc.target/msp430/special-regs.c: New test.

gcc/testsuite/gcc.target/s390/load-and-test-fp-1.c

@@ -14,4 +14,4 @@ foo (double dummy, double a)
   return a;
 }
 
-/* { dg-final { scan-assembler "cdbr\t" } } */
+/* { dg-final { scan-assembler {\tcdbr?\t} } } */