cf43195d47
- Return the correct NaN when an invalid operation generates a NaN.
- When one or more operands are NaN, handle them as the processor
would, prioritising signalling NaNs and making them quiet.
- Fix fmadd and related instructions:
- Fnmadd is fma(-n, m, -a), not -fma(n, m, a).
- Some common libc implementations incorrectly implement fma for
zero results, so work around these cases.
- Replace some unreliable tests.
This patch also adds support for Default-NaN mode, since once all the
other work was done, it only required a couple of lines of code.
Default-NaN mode was used for an optimisation in ARM, and it should now
be possible to apply the same optimisation to A64.
BUG=
R=jochen@chromium.org
Review URL: https://codereview.chromium.org/199083005
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19927 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
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| mozilla | ||
| preparser | ||
| test262 | ||
| webkit | ||