[Patch 2/2 PR78561] Recalculate constant pool size before emitting it

gcc/testsuite/

	PR rtl-optimization/78561
	* gcc.target/aarch64/pr78561.c: Add missing testcase from r243183.

From-SVN: r243239

gcc/testsuite/ChangeLog

+2016-12-04  James Greenhalgh  <james.greenhalgh@arm.com>
+
+	PR rtl-optimization/78561
+	* gcc.target/aarch64/pr78561.c: Add missing testcase from r243183.
+
 2016-12-04  Martin Sebor  <msebor@redhat.com>
 
 	PR c/78668

gcc/testsuite/gcc.target/aarch64/pr78561.c

+/* { dg-do compile } */
+/* { dg-options "-Og -O3 -mcmodel=tiny" } */
+
+int
+main (__fp16 x)
+{
+  __fp16 a = 6.5504e4;
+  return (x <= a);
+}