public inbox for gcc-bugs@sourceware.org
help / color / mirror / Atom feed
* [Bug target/99645] New: pdp-11 target produces inefficient code for sign extend
@ 2021-03-18 14:21 pkoning at gcc dot gnu.org
2021-03-19 22:10 ` [Bug target/99645] " pkoning at gcc dot gnu.org
0 siblings, 1 reply; 2+ messages in thread
From: pkoning at gcc dot gnu.org @ 2021-03-18 14:21 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99645
Bug ID: 99645
Summary: pdp-11 target produces inefficient code for sign
extend
Product: gcc
Version: 9.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: pkoning at gcc dot gnu.org
Target Milestone: ---
This issue was revealed by bug 84437. The reproducer given there now produces
"correct" code but it's quite inefficient because it uses a shift by 15 for
sign extend. On pdp11 that's not the best answer.
^ permalink raw reply [flat|nested] 2+ messages in thread
* [Bug target/99645] pdp-11 target produces inefficient code for sign extend
2021-03-18 14:21 [Bug target/99645] New: pdp-11 target produces inefficient code for sign extend pkoning at gcc dot gnu.org
@ 2021-03-19 22:10 ` pkoning at gcc dot gnu.org
0 siblings, 0 replies; 2+ messages in thread
From: pkoning at gcc dot gnu.org @ 2021-03-19 22:10 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99645
pkoning at gcc dot gnu.org changed:
What |Removed |Added
----------------------------------------------------------------------------
Ever confirmed|0 |1
Status|UNCONFIRMED |ASSIGNED
Last reconfirmed| |2021-03-19
^ permalink raw reply [flat|nested] 2+ messages in thread
end of thread, other threads:[~2021-03-19 22:10 UTC | newest]
Thread overview: 2+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-03-18 14:21 [Bug target/99645] New: pdp-11 target produces inefficient code for sign extend pkoning at gcc dot gnu.org
2021-03-19 22:10 ` [Bug target/99645] " pkoning 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).