public inbox for gcc-bugs@sourceware.org
help / color / mirror / Atom feed
* [Bug target/111733] New: Emit inline SVE FSCALE instruction for ldexp
@ 2023-10-09 9:53 ktkachov at gcc dot gnu.org
2024-06-15 23:48 ` [Bug target/111733] " pinskia at gcc dot gnu.org
0 siblings, 1 reply; 2+ messages in thread
From: ktkachov at gcc dot gnu.org @ 2023-10-09 9:53 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111733
Bug ID: 111733
Summary: Emit inline SVE FSCALE instruction for ldexp
Product: gcc
Version: 14.0
Status: UNCONFIRMED
Keywords: missed-optimization
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: ktkachov at gcc dot gnu.org
Target Milestone: ---
Target: aarch64
Having noticed https://github.com/llvm/llvm-project/pull/67552 in LLVM GCC
should be able to emit the SVE fscale instruction [1] to implement the ldexp
standard function.
There is already an ldexpm3 optab defined so it should be a relatively simple
matter of wiring up the expander for TARGET_SVE
[1]
https://developer.arm.com/documentation/ddi0596/2021-12/SVE-Instructions/FSCALE--Floating-point-adjust-exponent-by-vector--predicated--?lang=en
^ permalink raw reply [flat|nested] 2+ messages in thread
* [Bug target/111733] Emit inline SVE FSCALE instruction for ldexp
2023-10-09 9:53 [Bug target/111733] New: Emit inline SVE FSCALE instruction for ldexp ktkachov at gcc dot gnu.org
@ 2024-06-15 23:48 ` pinskia at gcc dot gnu.org
0 siblings, 0 replies; 2+ messages in thread
From: pinskia at gcc dot gnu.org @ 2024-06-15 23:48 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111733
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |aarch64-sve
Last reconfirmed| |2024-06-15
Status|UNCONFIRMED |NEW
Ever confirmed|0 |1
Severity|normal |enhancement
--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Confirmed.
^ permalink raw reply [flat|nested] 2+ messages in thread
end of thread, other threads:[~2024-06-15 23:48 UTC | newest]
Thread overview: 2+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2023-10-09 9:53 [Bug target/111733] New: Emit inline SVE FSCALE instruction for ldexp ktkachov at gcc dot gnu.org
2024-06-15 23:48 ` [Bug target/111733] " pinskia at gcc dot gnu.org
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).