float128: Add test-{float128,ifloat128,float128-finite}

This adds test support for float128, and lays some groundwork for future
_FloatN types.

	* math/gen-libm-test.pl (@all_floats): Add ifloat128 and float128.
	(%all_floats_pfx): Add macro prefix for float128 (FLT128).
	* math/libm-test-exp10.inc (pow10_test): Do not test for _FloatN,
	* math/libm-test-isfinite.inc (finite_test): Likewise.
	* math/libm-test-lgamma.inc (gamma_test): Likewise.
	* math/libm-test-nexttoward.inc (nexttoward_test): Likewise.
	(nexttoward_test_data}: Likewise.
	* math/libm-test-remainder.inc (drem_test): Likewise.
	* math/libm-test-scalb.inc (scalb_test): Likewise.
	(scalb_test_data): Likewise.
	* math/libm-test-significand.inc (significand_test): Likewise.
	(significand_test_data): Likewise.
	* math/libm-test-support.c (check_complex): Replace __complex__
	FLOAT with CFLOAT to get the support for old compiler.
	* math/libm-test-support.h (check_complex): Likewise.
	* math/test-double.h (CFLOAT, TEST_FLOATN): New macros.
	* math/test-float.h (CFLOAT, TEST_FLOATN): Likewise.
	* math/test-ldouble.h (CFLOAT, TEST_FLOATN): Likewise.
	* math/test-float128.h: New file.
	* math/test-math-floatn.h: New file.

1 files changed, 2 insertions, 0 deletions

diff --git a/math/libm-test-isfinite.inc b/math/libm-test-isfinite.inc
index 48d4c2e15b..0988997f74 100644
--- a/math/libm-test-isfinite.inc
+++ b/math/libm-test-isfinite.inc
@@ -47,7 +47,9 @@ static void
 finite_test (void)
 {
   /* finite uses the same test data as isfinite.  */
+#if !TEST_FLOATN
   ALL_RM_TEST (finite, 1, isfinite_test_data, RUN_TEST_LOOP_f_b, END);
+#endif
 }
 
 static void