copy-sign-1.c, mult-abs-2.c: Restrict to c99_runtime.

2017-06-28  Christophe Lyon  <christophe.lyon@linaro.org>

	* gcc.dg/tree-ssa/copy-sign-1.c: Add c99_runtime effective target
	and options.
	* gcc.dg/tree-ssa/mult-abs-2.c: Likewise.

From-SVN: r249733

gcc/testsuite/ChangeLog

+2017-06-28  Christophe Lyon  <christophe.lyon@linaro.org>
+
+	* gcc.dg/tree-ssa/copy-sign-1.c: Add c99_runtime effective target
+	and options.
+	* gcc.dg/tree-ssa/mult-abs-2.c: Likewise.
+
 2017-06-28  Marc Glisse  <marc.glisse@inria.fr>
 
 	* gcc.dg/tree-ssa/addadd.c: Remove test duplicated in addadd-2.c.

gcc/testsuite/gcc.dg/tree-ssa/copy-sign-1.c

-/* { dg-options "-O2 -ffast-math -fdump-tree-gimple" } */
 /* { dg-do compile } */
+/* { dg-require-effective-target c99_runtime } */
+/* { dg-options "-O2 -ffast-math -fdump-tree-gimple" } */
+/* { dg-add-options c99_runtime } */
 float f(float x)
 {
   return (x > 0.f ? -1.f : 1.f);

gcc/testsuite/gcc.dg/tree-ssa/mult-abs-2.c

-/* { dg-options "-O2 -ffast-math -fdump-tree-gimple" } */
 /* { dg-do compile } */
+/* { dg-require-effective-target c99_runtime } */
+/* { dg-options "-O2 -ffast-math -fdump-tree-gimple" } */
+/* { dg-add-options c99_runtime } */
+
 float f(float x)
 {
   return x * (x > 0.f ? -1.f : 1.f);