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Add more tests for ceil, floor, round, trunc [committed]

From: Joseph Myers <joseph at codesourcery dot com>
To: <libc-alpha at sourceware dot org>
Date: Fri, 16 Oct 2015 21:28:51 +0000
Subject: Add more tests for ceil, floor, round, trunc [committed]
Authentication-results: sourceware.org; auth=none
This patch adds more tests for ceil, floor, round and trunc, with a
particular focus on verifying they don't raise spurious "inexact"
exceptions for integer arguments (a C99 / C11 requirement, as opposed
to the general principle that they shouldn't raise "inexact" for any
arguments at all which is a TS 18661-1 requirement).

Tested for x86_64 and x86.  Committed.

2015-10-16  Joseph Myers  <joseph@codesourcery.com>

	* math/libm-test.inc (ceil_test_data): Add more tests and more
	expectations for "inexact".
	(floor_test_data): Add more tests.
	(round_test_data): Likewise.
	(trunc_test_data): Likewise.

diff --git a/math/libm-test.inc b/math/libm-test.inc
index 652735d..df2edd9 100644
--- a/math/libm-test.inc
+++ b/math/libm-test.inc
@@ -5998,13 +5998,47 @@ static const struct test_f_f_data ceil_test_data[] =
     TEST_f_f (ceil, 0.1, 1.0, ERRNO_UNCHANGED),
     TEST_f_f (ceil, 0.25, 1.0, ERRNO_UNCHANGED),
     TEST_f_f (ceil, 0.625, 1.0, ERRNO_UNCHANGED),
-    TEST_f_f (ceil, max_value, max_value, ERRNO_UNCHANGED),
+    TEST_f_f (ceil, 1, 1, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (ceil, 2, 2, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (ceil, 0x1p23, 0x1p23, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (ceil, 0x1p24, 0x1p24, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (ceil, 0x1p25, 0x1p25, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (ceil, 0x1p52, 0x1p52, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (ceil, 0x1p53, 0x1p53, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (ceil, 0x1p54, 0x1p54, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (ceil, 0x1p63, 0x1p63, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (ceil, 0x1p64, 0x1p64, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (ceil, 0x1p65, 0x1p65, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (ceil, 0x1p105, 0x1p105, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (ceil, 0x1p106, 0x1p106, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (ceil, 0x1p107, 0x1p107, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (ceil, 0x1p112, 0x1p112, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (ceil, 0x1p113, 0x1p113, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (ceil, 0x1p114, 0x1p114, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (ceil, max_value, max_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
     TEST_f_f (ceil, -min_subnorm_value, minus_zero, ERRNO_UNCHANGED),
     TEST_f_f (ceil, -min_value, minus_zero, ERRNO_UNCHANGED),
     TEST_f_f (ceil, -0.1, minus_zero, ERRNO_UNCHANGED),
     TEST_f_f (ceil, -0.25, minus_zero, ERRNO_UNCHANGED),
     TEST_f_f (ceil, -0.625, minus_zero, ERRNO_UNCHANGED),
-    TEST_f_f (ceil, -max_value, -max_value, ERRNO_UNCHANGED),
+    TEST_f_f (ceil, -1, -1, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (ceil, -2, -2, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (ceil, -0x1p23, -0x1p23, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (ceil, -0x1p24, -0x1p24, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (ceil, -0x1p25, -0x1p25, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (ceil, -0x1p52, -0x1p52, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (ceil, -0x1p53, -0x1p53, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (ceil, -0x1p54, -0x1p54, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (ceil, -0x1p63, -0x1p63, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (ceil, -0x1p64, -0x1p64, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (ceil, -0x1p65, -0x1p65, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (ceil, -0x1p105, -0x1p105, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (ceil, -0x1p106, -0x1p106, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (ceil, -0x1p107, -0x1p107, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (ceil, -0x1p112, -0x1p112, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (ceil, -0x1p113, -0x1p113, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (ceil, -0x1p114, -0x1p114, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (ceil, -max_value, -max_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
 
 #ifdef TEST_LDOUBLE
     /* The result can only be represented in long double.  */
@@ -7068,17 +7102,57 @@ static const struct test_f_f_data floor_test_data[] =
     TEST_f_f (floor, plus_infty, plus_infty, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
     TEST_f_f (floor, minus_infty, minus_infty, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
     TEST_f_f (floor, qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (floor, -qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
 
     /* Bug 15479: spurious "inexact" exception may occur.  */
     TEST_f_f (floor, M_PIl, 3.0, ERRNO_UNCHANGED),
     TEST_f_f (floor, -M_PIl, -4.0, ERRNO_UNCHANGED),
-
+    TEST_f_f (floor, min_subnorm_value, 0.0, ERRNO_UNCHANGED),
+    TEST_f_f (floor, min_value, 0.0, ERRNO_UNCHANGED),
     TEST_f_f (floor, 0.1, 0.0, ERRNO_UNCHANGED),
     TEST_f_f (floor, 0.25, 0.0, ERRNO_UNCHANGED),
     TEST_f_f (floor, 0.625, 0.0, ERRNO_UNCHANGED),
+    TEST_f_f (floor, 1, 1, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (floor, 2, 2, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (floor, 0x1p23, 0x1p23, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (floor, 0x1p24, 0x1p24, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (floor, 0x1p25, 0x1p25, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (floor, 0x1p52, 0x1p52, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (floor, 0x1p53, 0x1p53, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (floor, 0x1p54, 0x1p54, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (floor, 0x1p63, 0x1p63, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (floor, 0x1p64, 0x1p64, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (floor, 0x1p65, 0x1p65, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (floor, 0x1p105, 0x1p105, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (floor, 0x1p106, 0x1p106, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (floor, 0x1p107, 0x1p107, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (floor, 0x1p112, 0x1p112, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (floor, 0x1p113, 0x1p113, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (floor, 0x1p114, 0x1p114, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (floor, max_value, max_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (floor, -min_subnorm_value, -1.0, ERRNO_UNCHANGED),
+    TEST_f_f (floor, -min_value, -1.0, ERRNO_UNCHANGED),
     TEST_f_f (floor, -0.1, -1.0, ERRNO_UNCHANGED),
     TEST_f_f (floor, -0.25, -1.0, ERRNO_UNCHANGED),
     TEST_f_f (floor, -0.625, -1.0, ERRNO_UNCHANGED),
+    TEST_f_f (floor, -1, -1, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (floor, -2, -2, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (floor, -0x1p23, -0x1p23, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (floor, -0x1p24, -0x1p24, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (floor, -0x1p25, -0x1p25, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (floor, -0x1p52, -0x1p52, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (floor, -0x1p53, -0x1p53, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (floor, -0x1p54, -0x1p54, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (floor, -0x1p63, -0x1p63, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (floor, -0x1p64, -0x1p64, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (floor, -0x1p65, -0x1p65, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (floor, -0x1p105, -0x1p105, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (floor, -0x1p106, -0x1p106, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (floor, -0x1p107, -0x1p107, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (floor, -0x1p112, -0x1p112, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (floor, -0x1p113, -0x1p113, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (floor, -0x1p114, -0x1p114, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (floor, -max_value, -max_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
 
 #ifdef TEST_LDOUBLE
     /* The result can only be represented in long double.  */
@@ -10007,11 +10081,55 @@ rint_test (void)
 
 static const struct test_f_f_data round_test_data[] =
   {
-    /* TODO: missing +/-Inf as well as qNaN tests.  */
-
     TEST_f_f (round, 0, 0, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
     TEST_f_f (round, minus_zero, minus_zero, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (round, plus_infty, plus_infty, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (round, minus_infty, minus_infty, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (round, qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (round, -qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+
     /* Bug 15479: spurious "inexact" exception may occur.  */
+    TEST_f_f (round, min_subnorm_value, 0.0, ERRNO_UNCHANGED),
+    TEST_f_f (round, min_value, 0.0, ERRNO_UNCHANGED),
+    TEST_f_f (round, 1, 1, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (round, 2, 2, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (round, 0x1p23, 0x1p23, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (round, 0x1p24, 0x1p24, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (round, 0x1p25, 0x1p25, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (round, 0x1p52, 0x1p52, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (round, 0x1p53, 0x1p53, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (round, 0x1p54, 0x1p54, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (round, 0x1p63, 0x1p63, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (round, 0x1p64, 0x1p64, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (round, 0x1p65, 0x1p65, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (round, 0x1p105, 0x1p105, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (round, 0x1p106, 0x1p106, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (round, 0x1p107, 0x1p107, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (round, 0x1p112, 0x1p112, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (round, 0x1p113, 0x1p113, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (round, 0x1p114, 0x1p114, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (round, max_value, max_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (round, -min_subnorm_value, minus_zero, ERRNO_UNCHANGED),
+    TEST_f_f (round, -min_value, minus_zero, ERRNO_UNCHANGED),
+    TEST_f_f (round, -1, -1, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (round, -2, -2, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (round, -0x1p23, -0x1p23, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (round, -0x1p24, -0x1p24, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (round, -0x1p25, -0x1p25, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (round, -0x1p52, -0x1p52, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (round, -0x1p53, -0x1p53, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (round, -0x1p54, -0x1p54, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (round, -0x1p63, -0x1p63, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (round, -0x1p64, -0x1p64, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (round, -0x1p65, -0x1p65, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (round, -0x1p105, -0x1p105, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (round, -0x1p106, -0x1p106, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (round, -0x1p107, -0x1p107, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (round, -0x1p112, -0x1p112, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (round, -0x1p113, -0x1p113, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (round, -0x1p114, -0x1p114, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (round, -max_value, -max_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+
     TEST_f_f (round, 0.2L, 0.0, ERRNO_UNCHANGED),
     TEST_f_f (round, -0.2L, minus_zero, ERRNO_UNCHANGED),
     TEST_f_f (round, 0.5, 1.0, ERRNO_UNCHANGED),
@@ -10546,10 +10664,52 @@ static const struct test_f_f_data trunc_test_data[] =
     TEST_f_f (trunc, plus_infty, plus_infty, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
     TEST_f_f (trunc, minus_infty, minus_infty, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
     TEST_f_f (trunc, qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (trunc, -qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
 
     TEST_f_f (trunc, 0, 0, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
     TEST_f_f (trunc, minus_zero, minus_zero, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
     /* Bug 15479: spurious "inexact" exception may occur.  */
+    TEST_f_f (trunc, min_subnorm_value, 0.0, ERRNO_UNCHANGED),
+    TEST_f_f (trunc, min_value, 0.0, ERRNO_UNCHANGED),
+    TEST_f_f (trunc, 1, 1, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (trunc, 2, 2, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (trunc, 0x1p23, 0x1p23, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (trunc, 0x1p24, 0x1p24, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (trunc, 0x1p25, 0x1p25, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (trunc, 0x1p52, 0x1p52, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (trunc, 0x1p53, 0x1p53, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (trunc, 0x1p54, 0x1p54, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (trunc, 0x1p63, 0x1p63, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (trunc, 0x1p64, 0x1p64, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (trunc, 0x1p65, 0x1p65, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (trunc, 0x1p105, 0x1p105, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (trunc, 0x1p106, 0x1p106, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (trunc, 0x1p107, 0x1p107, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (trunc, 0x1p112, 0x1p112, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (trunc, 0x1p113, 0x1p113, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (trunc, 0x1p114, 0x1p114, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (trunc, max_value, max_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (trunc, -min_subnorm_value, minus_zero, ERRNO_UNCHANGED),
+    TEST_f_f (trunc, -min_value, minus_zero, ERRNO_UNCHANGED),
+    TEST_f_f (trunc, -1, -1, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (trunc, -2, -2, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (trunc, -0x1p23, -0x1p23, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (trunc, -0x1p24, -0x1p24, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (trunc, -0x1p25, -0x1p25, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (trunc, -0x1p52, -0x1p52, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (trunc, -0x1p53, -0x1p53, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (trunc, -0x1p54, -0x1p54, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (trunc, -0x1p63, -0x1p63, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (trunc, -0x1p64, -0x1p64, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (trunc, -0x1p65, -0x1p65, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (trunc, -0x1p105, -0x1p105, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (trunc, -0x1p106, -0x1p106, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (trunc, -0x1p107, -0x1p107, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (trunc, -0x1p112, -0x1p112, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (trunc, -0x1p113, -0x1p113, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (trunc, -0x1p114, -0x1p114, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (trunc, -max_value, -max_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+
     TEST_f_f (trunc, 0.1, 0, ERRNO_UNCHANGED),
     TEST_f_f (trunc, 0.25, 0, ERRNO_UNCHANGED),
     TEST_f_f (trunc, 0.625, 0, ERRNO_UNCHANGED),

-- 
Joseph S. Myers
joseph@codesourcery.com
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