[Bug 89645] dEQP-GLES3: modf does not produce correct results with infinities
bugzilla-daemon at freedesktop.org
bugzilla-daemon at freedesktop.org
Mon Feb 13 19:35:18 UTC 2017
https://bugs.freedesktop.org/show_bug.cgi?id=89645
Matt Turner <mattst88 at gmail.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC|itoral at igalia.com |
Status|NEW |RESOLVED
URL| |https://cvs.khronos.org/bug
| |zilla/show_bug.cgi?id=13907
Resolution|--- |WONTFIX
Assignee|idr at freedesktop.org |intel-3d-bugs at lists.freedes
| |ktop.org
--- Comment #2 from Matt Turner <mattst88 at gmail.com> ---
These tests were changed to accept a NaN return value in:
commit 4fdcdd50d72a1317dbab9f75738e5bb9ccd30634
Author: Pyry Haulos <phaulos at google.com>
Date: Tue May 5 12:31:13 2015 -0700
Relax builtin precision tests, fix issue in div rounding
* sin(), cos() and derived: Use |x| * 2^-10 for mediump inputs outside
of range [-pi,pi].
* asin(), acos(), and atan(): Use 4096 ULP for highp (from OpenCL's
fast relaxed math).
* modf(): allow any value, including NaN, as fractional if Inf support
is not mandated for the precision (lowp and mediump).
* atan(y, x): allow any value if y or x is Inf and no Inf support is
mandated for the precision.
* div (and derived): allow rounding of -/+inf to -/+maxval when both
inputs are ordinary and denominator is not 0 (legal in RTZ mode).
Bug: 20453754
Bug: 18323265
Change-Id: I8e2fad8909e29993e961d66a175963071ea2e5a8
There's also a Khronos bug discussing the issue in $URL. Conclusion is "Allow
NaN or zero. State that NaN preferred."
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