[Bug dynamic-link/21236] NaN generation by optimized math functions

[charles at schwieters dot org]

https://sourceware.org/bugzilla/show_bug.cgi?id=21236

--- Comment #2 from Charles Schwieters <charles at schwieters dot org> ---
I have reproduced the behavior with the upstream master, including fixing
things by reverting that single commit. Thanks to the good documentation you
pointed me to, I was able to run this on more platforms, including a Xeon Phi
7230. Here is a summary of the results:

platform          NaN occurs
Xeon Phi 7230      no
Xeon CPU E5-2670   yes
Xeon E5-1650 v2    yes
Pentium 4405       no
AMD Opteron 2218   no

My binary is available for this sort of analysis, but Intel may be the correct
place to turn.

-- 
You are receiving this mail because:
You are on the CC list for the bug.