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authorJoseph Myers <joseph@codesourcery.com>2012-04-30 09:38:06 +0000
committerJoseph Myers <joseph@codesourcery.com>2012-04-30 09:38:06 +0000
commit5ba3cc691c856e5c67a7d4cd4713f20a79f7ba81 (patch)
tree5dfe27d20ca6c9d2549d2ecd7f2dd565832dc2b0 /math
parent9568c0c2255045456a09b441f89c6641e27a4bec (diff)
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Fix acos (-1) in round-downwards mode on x86 (bug 14034).
Diffstat (limited to 'math')
-rw-r--r--math/libm-test.inc248
1 files changed, 248 insertions, 0 deletions
diff --git a/math/libm-test.inc b/math/libm-test.inc
index cd627cd..bedff09 100644
--- a/math/libm-test.inc
+++ b/math/libm-test.inc
@@ -761,6 +761,126 @@ acos_test (void)
END (acos);
}
+
+static void
+acos_test_tonearest (void)
+{
+ int save_round_mode;
+ errno = 0;
+ FUNC(acos) (0);
+ if (errno == ENOSYS)
+ /* Function not implemented. */
+ return;
+
+ START (acos_tonearest);
+
+ save_round_mode = fegetround ();
+
+ if (!fesetround (FE_TONEAREST))
+ {
+ TEST_f_f (acos, 0, M_PI_2l);
+ TEST_f_f (acos, minus_zero, M_PI_2l);
+ TEST_f_f (acos, 1, 0);
+ TEST_f_f (acos, -1, M_PIl);
+ TEST_f_f (acos, 0.5, M_PI_6l*2.0);
+ TEST_f_f (acos, -0.5, M_PI_6l*4.0);
+ }
+
+ fesetround (save_round_mode);
+
+ END (acos_tonearest);
+}
+
+
+static void
+acos_test_towardzero (void)
+{
+ int save_round_mode;
+ errno = 0;
+ FUNC(acos) (0);
+ if (errno == ENOSYS)
+ /* Function not implemented. */
+ return;
+
+ START (acos_towardzero);
+
+ save_round_mode = fegetround ();
+
+ if (!fesetround (FE_TOWARDZERO))
+ {
+ TEST_f_f (acos, 0, M_PI_2l);
+ TEST_f_f (acos, minus_zero, M_PI_2l);
+ TEST_f_f (acos, 1, 0);
+ TEST_f_f (acos, -1, M_PIl);
+ TEST_f_f (acos, 0.5, M_PI_6l*2.0);
+ TEST_f_f (acos, -0.5, M_PI_6l*4.0);
+ }
+
+ fesetround (save_round_mode);
+
+ END (acos_towardzero);
+}
+
+
+static void
+acos_test_downward (void)
+{
+ int save_round_mode;
+ errno = 0;
+ FUNC(acos) (0);
+ if (errno == ENOSYS)
+ /* Function not implemented. */
+ return;
+
+ START (acos_downward);
+
+ save_round_mode = fegetround ();
+
+ if (!fesetround (FE_DOWNWARD))
+ {
+ TEST_f_f (acos, 0, M_PI_2l);
+ TEST_f_f (acos, minus_zero, M_PI_2l);
+ TEST_f_f (acos, 1, 0);
+ TEST_f_f (acos, -1, M_PIl);
+ TEST_f_f (acos, 0.5, M_PI_6l*2.0);
+ TEST_f_f (acos, -0.5, M_PI_6l*4.0);
+ }
+
+ fesetround (save_round_mode);
+
+ END (acos_downward);
+}
+
+
+static void
+acos_test_upward (void)
+{
+ int save_round_mode;
+ errno = 0;
+ FUNC(acos) (0);
+ if (errno == ENOSYS)
+ /* Function not implemented. */
+ return;
+
+ START (acos_upward);
+
+ save_round_mode = fegetround ();
+
+ if (!fesetround (FE_UPWARD))
+ {
+ TEST_f_f (acos, 0, M_PI_2l);
+ TEST_f_f (acos, minus_zero, M_PI_2l);
+ TEST_f_f (acos, 1, 0);
+ TEST_f_f (acos, -1, M_PIl);
+ TEST_f_f (acos, 0.5, M_PI_6l*2.0);
+ TEST_f_f (acos, -0.5, M_PI_6l*4.0);
+ }
+
+ fesetround (save_round_mode);
+
+ END (acos_upward);
+}
+
static void
acosh_test (void)
{
@@ -817,6 +937,126 @@ asin_test (void)
END (asin);
}
+
+static void
+asin_test_tonearest (void)
+{
+ int save_round_mode;
+ errno = 0;
+ FUNC(asin) (0);
+ if (errno == ENOSYS)
+ /* Function not implemented. */
+ return;
+
+ START (asin_tonearest);
+
+ save_round_mode = fegetround ();
+
+ if (!fesetround (FE_TONEAREST))
+ {
+ TEST_f_f (asin, 0, 0);
+ TEST_f_f (asin, minus_zero, minus_zero);
+ TEST_f_f (asin, 0.5, M_PI_6l);
+ TEST_f_f (asin, -0.5, -M_PI_6l);
+ TEST_f_f (asin, 1.0, M_PI_2l);
+ TEST_f_f (asin, -1.0, -M_PI_2l);
+ }
+
+ fesetround (save_round_mode);
+
+ END (asin_tonearest);
+}
+
+
+static void
+asin_test_towardzero (void)
+{
+ int save_round_mode;
+ errno = 0;
+ FUNC(asin) (0);
+ if (errno == ENOSYS)
+ /* Function not implemented. */
+ return;
+
+ START (asin_towardzero);
+
+ save_round_mode = fegetround ();
+
+ if (!fesetround (FE_TOWARDZERO))
+ {
+ TEST_f_f (asin, 0, 0);
+ TEST_f_f (asin, minus_zero, minus_zero);
+ TEST_f_f (asin, 0.5, M_PI_6l);
+ TEST_f_f (asin, -0.5, -M_PI_6l);
+ TEST_f_f (asin, 1.0, M_PI_2l);
+ TEST_f_f (asin, -1.0, -M_PI_2l);
+ }
+
+ fesetround (save_round_mode);
+
+ END (asin_towardzero);
+}
+
+
+static void
+asin_test_downward (void)
+{
+ int save_round_mode;
+ errno = 0;
+ FUNC(asin) (0);
+ if (errno == ENOSYS)
+ /* Function not implemented. */
+ return;
+
+ START (asin_downward);
+
+ save_round_mode = fegetround ();
+
+ if (!fesetround (FE_DOWNWARD))
+ {
+ TEST_f_f (asin, 0, 0);
+ TEST_f_f (asin, minus_zero, minus_zero);
+ TEST_f_f (asin, 0.5, M_PI_6l);
+ TEST_f_f (asin, -0.5, -M_PI_6l);
+ TEST_f_f (asin, 1.0, M_PI_2l);
+ TEST_f_f (asin, -1.0, -M_PI_2l);
+ }
+
+ fesetround (save_round_mode);
+
+ END (asin_downward);
+}
+
+
+static void
+asin_test_upward (void)
+{
+ int save_round_mode;
+ errno = 0;
+ FUNC(asin) (0);
+ if (errno == ENOSYS)
+ /* Function not implemented. */
+ return;
+
+ START (asin_upward);
+
+ save_round_mode = fegetround ();
+
+ if (!fesetround (FE_UPWARD))
+ {
+ TEST_f_f (asin, 0, 0);
+ TEST_f_f (asin, minus_zero, minus_zero);
+ TEST_f_f (asin, 0.5, M_PI_6l);
+ TEST_f_f (asin, -0.5, -M_PI_6l);
+ TEST_f_f (asin, 1.0, M_PI_2l);
+ TEST_f_f (asin, -1.0, -M_PI_2l);
+ }
+
+ fesetround (save_round_mode);
+
+ END (asin_upward);
+}
+
static void
asinh_test (void)
{
@@ -8194,7 +8434,15 @@ main (int argc, char **argv)
/* Trigonometric functions: */
acos_test ();
+ acos_test_tonearest ();
+ acos_test_towardzero ();
+ acos_test_downward ();
+ acos_test_upward ();
asin_test ();
+ asin_test_tonearest ();
+ asin_test_towardzero ();
+ asin_test_downward ();
+ asin_test_upward ();
atan_test ();
atan2_test ();
cos_test ();