[src/trunk]: src/tests/lib/libm Skip rounding mode tests on ARM FPUs that do ...

[martin <martin%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/11f5804b15f1
branches:  trunk
changeset: 805341:11f5804b15f1
user:      martin <martin%NetBSD.org@localhost>
date:      Mon Dec 29 19:51:53 2014 +0000

description:
Skip rounding mode tests on ARM FPUs that do not allow configuration of them.

diffstat:

 tests/lib/libm/t_fenv.c |  29 ++++++++++++++++++++++-------
 1 files changed, 22 insertions(+), 7 deletions(-)

diffs (82 lines):

diff -r 0a306aca209d -r 11f5804b15f1 tests/lib/libm/t_fenv.c
--- a/tests/lib/libm/t_fenv.c   Mon Dec 29 19:20:22 2014 +0000
+++ b/tests/lib/libm/t_fenv.c   Mon Dec 29 19:51:53 2014 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: t_fenv.c,v 1.1 2014/12/21 15:37:03 martin Exp $ */
+/* $NetBSD: t_fenv.c,v 1.2 2014/12/29 19:51:53 martin Exp $ */
 
 /*-
  * Copyright (c) 2014 The NetBSD Foundation, Inc.
@@ -29,7 +29,7 @@
  * POSSIBILITY OF SUCH DAMAGE.
  */
 #include <sys/cdefs.h>
-__RCSID("$NetBSD: t_fenv.c,v 1.1 2014/12/21 15:37:03 martin Exp $");
+__RCSID("$NetBSD: t_fenv.c,v 1.2 2014/12/29 19:51:53 martin Exp $");
 
 #include <atf-c.h>
 
@@ -46,13 +46,24 @@
         * skip these tests if running on them and compiled for
         * hard float.
         */
-#define        FPU_PREREQ()                                                    \
+#define        FPU_EXC_PREREQ()                                                \
        if (0 == fpsetmask(fpsetmask(FP_X_INV)))                        \
                atf_tc_skip("FPU does not implement exception handling");
+
+       /*
+        * Same as above: some don't allow configuring the rounding mode.
+        */
+#define        FPU_RND_PREREQ()                                                \
+       if (0 == fpsetround(fpsetround(FP_RZ)))                         \
+               atf_tc_skip("FPU does not implement configurable "      \
+                   "rounding modes");
 #endif
 
-#ifndef FPU_PREREQ
-#define        FPU_PREREQ()    /* nothing */
+#ifndef FPU_EXC_PREREQ
+#define        FPU_EXC_PREREQ()        /* nothing */
+#endif
+#ifndef FPU_RND_PREREQ
+#define        FPU_RND_PREREQ()        /* nothing */
 #endif
 
 
@@ -67,6 +78,8 @@
 
 ATF_TC_BODY(fegetround, tc)
 {
+       FPU_RND_PREREQ();
+
        fpsetround(FP_RZ);
        ATF_CHECK(fegetround() == FE_TOWARDZERO);
        fpsetround(FP_RM);
@@ -88,6 +101,8 @@
 
 ATF_TC_BODY(fesetround, tc)
 {
+       FPU_RND_PREREQ();
+
        fesetround(FE_TOWARDZERO);
        ATF_CHECK(fpgetround() == FP_RZ);
        fesetround(FE_DOWNWARD);
@@ -109,7 +124,7 @@
 
 ATF_TC_BODY(fegetexcept, tc)
 {
-       FPU_PREREQ();
+       FPU_EXC_PREREQ();
 
        fpsetmask(0);
        ATF_CHECK(fegetexcept() == 0);
@@ -145,7 +160,7 @@
 
 ATF_TC_BODY(feenableexcept, tc)
 {
-       FPU_PREREQ();
+       FPU_EXC_PREREQ();
 
        fedisableexcept(FE_ALL_EXCEPT);
        ATF_CHECK(fpgetmask() == 0);