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author | Joseph Myers <joseph@codesourcery.com> | 2017-01-09 22:40:59 +0000 |
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committer | Joseph Myers <joseph@codesourcery.com> | 2017-01-09 22:40:59 +0000 |
commit | 08f7b95dbdf7ddc25899fe5b521a36db03fe6e2a (patch) | |
tree | 9cd4770bac4f35d3c84eb24c641901f46bbb9b71 /ChangeLog.3 | |
parent | c6be839efded78768ad3c70d7f2e913a9fb8603c (diff) | |
download | glibc-08f7b95dbdf7ddc25899fe5b521a36db03fe6e2a.tar.gz glibc-08f7b95dbdf7ddc25899fe5b521a36db03fe6e2a.tar.xz glibc-08f7b95dbdf7ddc25899fe5b521a36db03fe6e2a.zip |
Improve libm-test XFAILing for ibm128-libgcc.
This patch further improves XFAILing for ibm128-libgcc of tests in auto-libm-test-*. The bulk of the cases needing XFAILing are xfail-rounding:ibm128-libgcc used for inputs where (possibly after rounding the inputs to another floating-point type) the result overflows (and the result in non-default rounding modes may be wildly wrong with unpatched libgcc) or underflows near 0 (and the result in non-default rounding modes may end up having the wrong sign). This patch makes gen-auto-libm-tests detect such cases and apply xfail-rounding:ibm128-libgcc automatically to them, so most of the manual XFAILs in auto-libm-test-in are no longer needed (some are still needed if e.g. the result is very close to overflow, resulting in an internal overflow in libgcc in some rounding modes). A few manual XFAILs are added for cases not covered by this gen-auto-libm-tests change, and a few existing such XFAILs are left in. Tested for powerpc. * math/gen-auto-libm-tests.c (output_for_one_input_case): Apply xfail-rounding:ibm128-libgcc automatically to tests overflowing and those that can underflow to zero. * math/auto-libm-test-in: Remove most XFAILs for ibm128-libgcc and add others. * math/auto-libm-test-out: Regenerated.
Diffstat (limited to 'ChangeLog.3')
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