testsuite: Add testcases for PR92449

	PR target/92449
	* gcc.c-torture/compile/pr92449.c: New test.
	* gcc.target/powerpc/pr92449-1.c: New test.

From-SVN: r278104

gcc/testsuite/ChangeLog

+2019-11-12  Segher Boessenkool  <segher@kernel.crashing.org>
+
+	PR target/92449
+	* gcc.c-torture/compile/pr92449.c: New test.
+	* gcc.target/powerpc/pr92449-1.c: New test.
+
 2019-11-12  Tobias Burnus  <tobias@codesourcery.com>
 
 	PR fortran/92470

gcc/testsuite/gcc.c-torture/compile/pr92449.c

+/* PR target/92449 */
+/* { dg-additional-options "-ffast-math -fno-cx-limited-range" } */
+
+void do_div (_Complex double *a, _Complex double *b)
+{
+  *a = *b / (4.0 - 5.0fi);
+}

gcc/testsuite/gcc.target/powerpc/pr92449-1.c

+/* { dg-options "-Ofast -mdejagnu-cpu=power9 " } */
+
+int
+compare_exponents_unordered (double exponent1, double exponent2)
+{
+  return __builtin_vec_scalar_cmp_exp_unordered (exponent1, exponent2);
+}