diff options
| author | Joseph Myers <joseph@codesourcery.com> | 2016-05-26 16:38:04 +0000 |
|---|---|---|
| committer | Joseph Myers <joseph@codesourcery.com> | 2016-05-26 16:38:04 +0000 |
| commit | 262112840ca3807d2e5c7227a476be88be5740a7 (patch) | |
| tree | 819898673e9c173d0f0d81dd6e180c9684451e70 /ChangeLog | |
| parent | 2f0dc39029ae08cbed2f65d21501b3e329895e7d (diff) | |
| download | glibc-262112840ca3807d2e5c7227a476be88be5740a7.zip glibc-262112840ca3807d2e5c7227a476be88be5740a7.tar.gz glibc-262112840ca3807d2e5c7227a476be88be5740a7.tar.bz2 | |
Support sNaN testing in libm-test.inc.
This patch adds support in libm-test.inc for tests with signaling NaN
arguments. gen-libm-test.pl is made to set a flag TEST_SNAN for such
tests, so that they can be disabled automatically when sNaN testing
isn't supported for a given type (at present, for float and double on
32-bit x86 because it's unpredictable when a value might be loaded
into a floating-point register and so automatically converted to long
double with sNaNs converted to quiet NaNs). -fsignaling-nans is used
where needed.
Tests are added for classification macros, as a starting point; this
is deliberately more conservative than Thomas's patch
<https://sourceware.org/ml/libc-ports/2013-04/msg00008.html>, to allow
more tests to be added, and issues exposed fixed, bit by bit.
Tested for x86_64 and x86.
* math/libm-test.inc: Update comment about NaN testing.
(TEST_SNAN): New macro.
(snan_value): Likewise.
(enable_test): Disable tests of sNaNs when SNAN_TESTS fails.
(fpclassify_test_data): Add sNaN tests.
(isfinite_test_data): Likewise.
(isinf_test_data): Likewise.
(isnan_test_data): Likewise.
(isnormal_test_data): Likewise.
(issignaling_test_data): Likewise.
(signbit_test_data): Likewise.
* math/gen-libm-test.pl (%beautify): Add snan_value.
(show_exceptions): Add argument $test_snan.
(parse_args): Handle snan_value as non-finite. Update call to
show_exceptions.
* math/Makefile (libm-test-no-inline-cflags): Add
-fsignaling-nans.
Diffstat (limited to 'ChangeLog')
| -rw-r--r-- | ChangeLog | 20 |
1 files changed, 20 insertions, 0 deletions
@@ -1,3 +1,23 @@ +2016-05-26 Joseph Myers <joseph@codesourcery.com> + + * math/libm-test.inc: Update comment about NaN testing. + (TEST_SNAN): New macro. + (snan_value): Likewise. + (enable_test): Disable tests of sNaNs when SNAN_TESTS fails. + (fpclassify_test_data): Add sNaN tests. + (isfinite_test_data): Likewise. + (isinf_test_data): Likewise. + (isnan_test_data): Likewise. + (isnormal_test_data): Likewise. + (issignaling_test_data): Likewise. + (signbit_test_data): Likewise. + * math/gen-libm-test.pl (%beautify): Add snan_value. + (show_exceptions): Add argument $test_snan. + (parse_args): Handle snan_value as non-finite. Update call to + show_exceptions. + * math/Makefile (libm-test-no-inline-cflags): Add + -fsignaling-nans. + 2016-05-26 Adhemerval Zanella <adhemerval.zanella@linaro.org> * nptl/Makefile (CFLAGS-oldrecvfrom.c): Remove rule. |