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Add more tests of lrint, llrint, lround, llround [committed]

From: Joseph Myers <joseph at codesourcery dot com>
To: <libc-alpha at sourceware dot org>
Date: Tue, 6 Oct 2015 22:43:08 +0000
Subject: Add more tests of lrint, llrint, lround, llround [committed]
Authentication-results: sourceware.org; auth=none
This patch adds more tests of lrint, llrint, lround and llround, to
cover various standard special cases not previously covered, and more
tests of overflow.

Tested for x86_64 and x86.  Committed.

2015-10-06  Joseph Myers  <joseph@codesourcery.com>

	* math/libm-test.inc (lrint_test_data): Add more tests.
	(llrint_test_data): Likewise.
	(lround_test_data): Likewise.
	(llround_test_data): Likewise.

diff --git a/math/libm-test.inc b/math/libm-test.inc
index 4c32364..54f62f8 100644
--- a/math/libm-test.inc
+++ b/math/libm-test.inc
@@ -7781,8 +7781,39 @@ static const struct test_f_l_data lrint_test_data[] =
     TEST_f_l (lrint, plus_infty, IGNORE, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
     TEST_f_l (lrint, minus_infty, IGNORE, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
     TEST_f_l (lrint, qnan_value, IGNORE, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_f_l (lrint, -qnan_value, IGNORE, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_f_l (lrint, max_value, IGNORE, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_f_l (lrint, -max_value, IGNORE, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+#if LONG_MAX > 0x7fffffff
+    TEST_f_l (lrint, 0x1p31, 0x80000000LL, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_l (lrint, 0x1p32, 0x100000000LL, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_l (lrint, 0x1p33, 0x200000000LL, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+#else
+    TEST_f_l (lrint, 0x1p31, IGNORE, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_f_l (lrint, 0x1p32, IGNORE, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_f_l (lrint, 0x1p33, IGNORE, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+#endif
+    TEST_f_l (lrint, 0x1p63, IGNORE, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_f_l (lrint, 0x1p64, IGNORE, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_f_l (lrint, 0x1p65, IGNORE, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_f_l (lrint, -0x1p31, -0x80000000LL, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+#if LONG_MAX > 0x7fffffff
+    TEST_f_l (lrint, -0x1p32, -0x100000000LL, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_l (lrint, -0x1p33, -0x200000000LL, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_l (lrint, -0x1p63, LLONG_MIN, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+#else
+    TEST_f_l (lrint, -0x1p32, IGNORE, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_f_l (lrint, -0x1p33, IGNORE, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_f_l (lrint, -0x1p63, IGNORE, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+#endif
+    TEST_f_l (lrint, -0x1p64, IGNORE, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_f_l (lrint, -0x1p65, IGNORE, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
     TEST_f_l (lrint, 0.0, 0, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
     TEST_f_l (lrint, minus_zero, 0, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_l (lrint, min_value, 0, INEXACT_EXCEPTION|ERRNO_UNCHANGED, 0, INEXACT_EXCEPTION|ERRNO_UNCHANGED, 0, INEXACT_EXCEPTION|ERRNO_UNCHANGED, 1, INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_l (lrint, -min_value, -1, INEXACT_EXCEPTION|ERRNO_UNCHANGED, 0, INEXACT_EXCEPTION|ERRNO_UNCHANGED, 0, INEXACT_EXCEPTION|ERRNO_UNCHANGED, 0, INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_l (lrint, min_subnorm_value, 0, INEXACT_EXCEPTION|ERRNO_UNCHANGED, 0, INEXACT_EXCEPTION|ERRNO_UNCHANGED, 0, INEXACT_EXCEPTION|ERRNO_UNCHANGED, 1, INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_l (lrint, -min_subnorm_value, -1, INEXACT_EXCEPTION|ERRNO_UNCHANGED, 0, INEXACT_EXCEPTION|ERRNO_UNCHANGED, 0, INEXACT_EXCEPTION|ERRNO_UNCHANGED, 0, INEXACT_EXCEPTION|ERRNO_UNCHANGED),
     TEST_f_l (lrint, 0.2L, 0, INEXACT_EXCEPTION|ERRNO_UNCHANGED, 0, INEXACT_EXCEPTION|ERRNO_UNCHANGED, 0, INEXACT_EXCEPTION|ERRNO_UNCHANGED, 1, INEXACT_EXCEPTION|ERRNO_UNCHANGED),
     TEST_f_l (lrint, -0.2L, -1, INEXACT_EXCEPTION|ERRNO_UNCHANGED, 0, INEXACT_EXCEPTION|ERRNO_UNCHANGED, 0, INEXACT_EXCEPTION|ERRNO_UNCHANGED, 0, INEXACT_EXCEPTION|ERRNO_UNCHANGED),
     TEST_f_l (lrint, 0.5L, 0, INEXACT_EXCEPTION|ERRNO_UNCHANGED, 0, INEXACT_EXCEPTION|ERRNO_UNCHANGED, 0, INEXACT_EXCEPTION|ERRNO_UNCHANGED, 1, INEXACT_EXCEPTION|ERRNO_UNCHANGED),
@@ -7929,8 +7960,27 @@ static const struct test_f_L_data llrint_test_data[] =
     TEST_f_L (llrint, plus_infty, IGNORE, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
     TEST_f_L (llrint, minus_infty, IGNORE, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
     TEST_f_L (llrint, qnan_value, IGNORE, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_f_L (llrint, -qnan_value, IGNORE, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_f_L (llrint, max_value, IGNORE, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_f_L (llrint, -max_value, IGNORE, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_f_L (llrint, 0x1p31, 0x80000000LL, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_L (llrint, 0x1p32, 0x100000000LL, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_L (llrint, 0x1p33, 0x200000000LL, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_L (llrint, 0x1p63, IGNORE, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_f_L (llrint, 0x1p64, IGNORE, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_f_L (llrint, 0x1p65, IGNORE, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_f_L (llrint, -0x1p31, -0x80000000LL, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_L (llrint, -0x1p32, -0x100000000LL, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_L (llrint, -0x1p33, -0x200000000LL, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_L (llrint, -0x1p63, LLONG_MIN, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_L (llrint, -0x1p64, IGNORE, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_f_L (llrint, -0x1p65, IGNORE, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
     TEST_f_L (llrint, 0.0, 0, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
     TEST_f_L (llrint, minus_zero, 0, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_L (llrint, min_value, 0, INEXACT_EXCEPTION|ERRNO_UNCHANGED, 0, INEXACT_EXCEPTION|ERRNO_UNCHANGED, 0, INEXACT_EXCEPTION|ERRNO_UNCHANGED, 1, INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_L (llrint, -min_value, -1, INEXACT_EXCEPTION|ERRNO_UNCHANGED, 0, INEXACT_EXCEPTION|ERRNO_UNCHANGED, 0, INEXACT_EXCEPTION|ERRNO_UNCHANGED, 0, INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_L (llrint, min_subnorm_value, 0, INEXACT_EXCEPTION|ERRNO_UNCHANGED, 0, INEXACT_EXCEPTION|ERRNO_UNCHANGED, 0, INEXACT_EXCEPTION|ERRNO_UNCHANGED, 1, INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_L (llrint, -min_subnorm_value, -1, INEXACT_EXCEPTION|ERRNO_UNCHANGED, 0, INEXACT_EXCEPTION|ERRNO_UNCHANGED, 0, INEXACT_EXCEPTION|ERRNO_UNCHANGED, 0, INEXACT_EXCEPTION|ERRNO_UNCHANGED),
     TEST_f_L (llrint, 0.2L, 0, INEXACT_EXCEPTION|ERRNO_UNCHANGED, 0, INEXACT_EXCEPTION|ERRNO_UNCHANGED, 0, INEXACT_EXCEPTION|ERRNO_UNCHANGED, 1, INEXACT_EXCEPTION|ERRNO_UNCHANGED),
     TEST_f_L (llrint, -0.2L, -1, INEXACT_EXCEPTION|ERRNO_UNCHANGED, 0, INEXACT_EXCEPTION|ERRNO_UNCHANGED, 0, INEXACT_EXCEPTION|ERRNO_UNCHANGED, 0, INEXACT_EXCEPTION|ERRNO_UNCHANGED),
     TEST_f_L (llrint, 0.5L, 0, INEXACT_EXCEPTION|ERRNO_UNCHANGED, 0, INEXACT_EXCEPTION|ERRNO_UNCHANGED, 0, INEXACT_EXCEPTION|ERRNO_UNCHANGED, 1, INEXACT_EXCEPTION|ERRNO_UNCHANGED),
@@ -8205,8 +8255,39 @@ static const struct test_f_l_data lround_test_data[] =
     TEST_f_l (lround, plus_infty, IGNORE, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
     TEST_f_l (lround, minus_infty, IGNORE, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
     TEST_f_l (lround, qnan_value, IGNORE, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_f_l (lround, -qnan_value, IGNORE, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_f_l (lround, max_value, IGNORE, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_f_l (lround, -max_value, IGNORE, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+#if LONG_MAX > 0x7fffffff
+    TEST_f_l (lround, 0x1p31, 0x80000000LL, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_l (lround, 0x1p32, 0x100000000LL, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_l (lround, 0x1p33, 0x200000000LL, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+#else
+    TEST_f_l (lround, 0x1p31, IGNORE, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_f_l (lround, 0x1p32, IGNORE, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_f_l (lround, 0x1p33, IGNORE, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+#endif
+    TEST_f_l (lround, 0x1p63, IGNORE, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_f_l (lround, 0x1p64, IGNORE, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_f_l (lround, 0x1p65, IGNORE, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_f_l (lround, -0x1p31, -0x80000000LL, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+#if LONG_MAX > 0x7fffffff
+    TEST_f_l (lround, -0x1p32, -0x100000000LL, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_l (lround, -0x1p33, -0x200000000LL, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_l (lround, -0x1p63, LLONG_MIN, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+#else
+    TEST_f_l (lround, -0x1p32, IGNORE, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_f_l (lround, -0x1p33, IGNORE, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_f_l (lround, -0x1p63, IGNORE, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+#endif
+    TEST_f_l (lround, -0x1p64, IGNORE, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_f_l (lround, -0x1p65, IGNORE, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
     TEST_f_l (lround, 0, 0, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
     TEST_f_l (lround, minus_zero, 0, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_l (lround, min_value, 0.0, ERRNO_UNCHANGED),
+    TEST_f_l (lround, -min_value, 0, ERRNO_UNCHANGED),
+    TEST_f_l (lround, min_subnorm_value, 0.0, ERRNO_UNCHANGED),
+    TEST_f_l (lround, -min_subnorm_value, 0, ERRNO_UNCHANGED),
     TEST_f_l (lround, 0.2L, 0.0, ERRNO_UNCHANGED),
     TEST_f_l (lround, -0.2L, 0, ERRNO_UNCHANGED),
     TEST_f_l (lround, 0.5, 1, ERRNO_UNCHANGED),
@@ -8396,8 +8477,27 @@ static const struct test_f_L_data llround_test_data[] =
     TEST_f_L (llround, plus_infty, IGNORE, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
     TEST_f_L (llround, minus_infty, IGNORE, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
     TEST_f_L (llround, qnan_value, IGNORE, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_f_L (llround, -qnan_value, IGNORE, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_f_L (llround, max_value, IGNORE, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_f_L (llround, -max_value, IGNORE, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_f_L (llround, 0x1p31, 0x80000000LL, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_L (llround, 0x1p32, 0x100000000LL, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_L (llround, 0x1p33, 0x200000000LL, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_L (llround, 0x1p63, IGNORE, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_f_L (llround, 0x1p64, IGNORE, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_f_L (llround, 0x1p65, IGNORE, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_f_L (llround, -0x1p31, -0x80000000LL, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_L (llround, -0x1p32, -0x100000000LL, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_L (llround, -0x1p33, -0x200000000LL, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_L (llround, -0x1p63, LLONG_MIN, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_L (llround, -0x1p64, IGNORE, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
+    TEST_f_L (llround, -0x1p65, IGNORE, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION),
     TEST_f_L (llround, 0, 0, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
     TEST_f_L (llround, minus_zero, 0, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_L (llround, min_value, 0.0, ERRNO_UNCHANGED),
+    TEST_f_L (llround, -min_value, 0, ERRNO_UNCHANGED),
+    TEST_f_L (llround, min_subnorm_value, 0.0, ERRNO_UNCHANGED),
+    TEST_f_L (llround, -min_subnorm_value, 0, ERRNO_UNCHANGED),
     TEST_f_L (llround, 0.2L, 0.0, ERRNO_UNCHANGED),
     TEST_f_L (llround, -0.2L, 0, ERRNO_UNCHANGED),
     TEST_f_L (llround, 0.5, 1, ERRNO_UNCHANGED),

-- 
Joseph S. Myers
joseph@codesourcery.com
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