https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86948
Andrew Pinski changed:
What|Removed |Added
Target Milestone|11.0|12.0
--- Comment #11 from Andrew Pinski
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86948
Andrew Pinski changed:
What|Removed |Added
Resolution|--- |WONTFIX
Status|NEW
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86948
--- Comment #9 from Martin Jambor ---
(In reply to Roger Sayle from comment #7)
> A default expansion for MULT_HIGHPART_EXPR was proposed as part of
> https://gcc.gnu.org/pipermail/gcc-patches/2020-August/551316.html
> I'll split off just that
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86948
--- Comment #8 from Alexander Monakov ---
How does your patch expand 64-bit highpart multiply (i.e. with 128-bit full
product) on 32-bit targets?
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86948
Roger Sayle changed:
What|Removed |Added
CC||roger at nextmovesoftware dot
com
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86948
--- Comment #6 from Alexander Monakov ---
Please follow up on the ML to
https://gcc.gnu.org/ml/gcc-patches/2018-08/msg01128.html
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86948
--- Comment #5 from Pekka Jääskeläinen
---
Hi Alexander. I just verified that the patch fixes the make check-brig
regression here. Are you going to post this to ML for review or how shall we
proceed?
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86948
--- Comment #4 from Alexander Monakov ---
Created attachment 44541
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=44541=edit
generic expansion for mult-highpart
This patch implements fallback via widening multiply; works for the gimple
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86948
--- Comment #3 from Alexander Monakov ---
Created attachment 44537
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=44537=edit
expose mult-highpart via GIMPLE FE
Attaching a patch that allows creating MULT_HIGHPART_EXPR via GIMPLE FE, which
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86948
--- Comment #2 from Alexander Monakov ---
Thanks for the heads-up. At present, BRIG frontend cannot rely on
MULT_HIGHPART, as the pattern is optional and, as this bug shows, generic
expansion is not implemented. BRIG frontend is already somewhat
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86948
Martin Jambor changed:
What|Removed |Added
CC||amonakov at gcc dot gnu.org
--- Comment
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