https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71559
--- Comment #12 from Uroš Bizjak ---
(In reply to jos...@codesourcery.com from comment #11)
> There are definitely bugs on some architectures involving ordinary ordered
> comparisons such as < and >= wrongly using quiet instructions. See bug
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71559
--- Comment #11 from joseph at codesourcery dot com ---
On Fri, 17 Jun 2016, jakub at gcc dot gnu.org wrote:
> The patch is completely untested though (and wonder if we have testcases for
> not raising exceptions when isgreater etc. arguments
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71559
--- Comment #10 from H.J. Lu ---
This is related to PR 37158?
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71559
--- Comment #9 from Jakub Jelinek ---
If I compile the above testcase with -O2 -mavx -ftrapping-math, then it
generates vucomiss in each case, which seems wrong to me (because for
gt/ge/lt/le it should raise exceptions, so IMHO should use
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71559
Jakub Jelinek changed:
What|Removed |Added
CC||hjl.tools at gmail dot com,
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71559
--- Comment #7 from Jakub Jelinek ---
I've created the table just by walking through the 'D' handling.
That said, looking e.g. at
https://people.eecs.berkeley.edu/~wkahan/ieee754status/IEEE754.PDF
for the C comparisons (EQ, NE, LT, LE, GT, GE)
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71559
--- Comment #6 from Carlos Tripiana Montes ---
Hope you guys can do that and fix this problem soon. It would much appreciated
as we are (at Barcelona Supercomputing Center, Spain) doing research on KNL and
we need the fastest/most robust code we
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71559
Ilya Enkovich changed:
What|Removed |Added
CC||ienkovich at gcc dot gnu.org
---
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71559
--- Comment #4 from Carlos Tripiana Montes ---
I wasn't sure but that was my intuition. But I'm afraid I don't have enough
knowledge to propose a fix.
(In reply to Jakub Jelinek from comment #3)
> I'd say it is a bug in
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71559
Jakub Jelinek changed:
What|Removed |Added
Status|UNCONFIRMED |NEW
Last reconfirmed|
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71559
Igor Zamyatin changed:
What|Removed |Added
CC||izamyatin at gmail dot com
--- Comment
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71559
--- Comment #1 from Carlos Tripiana Montes ---
Does anyone has a clue on this?
I've tried to follow the stacktrace and it seems like it's generating an
invalid code tag for this particular operation.
Any help would be much appreciated!
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