https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69416
Jakub Jelinek changed:
What|Removed |Added
Status|NEW |RESOLVED
CC|
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69416
--- Comment #9 from Richard Henderson ---
Author: rth
Date: Fri Jan 22 17:21:41 2016
New Revision: 232737
URL: https://gcc.gnu.org/viewcvs?rev=232737&root=gcc&view=rev
Log:
PR target/69416
* config/aarch64/aarch64.md (UNSPEC_NZCV): New.
(cc
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69416
ktkachov at gcc dot gnu.org changed:
What|Removed |Added
CC||sch...@linux-m68k.org
--- C
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69416
--- Comment #7 from Wilco ---
(In reply to Richard Henderson from comment #5)
> Created attachment 37419 [details]
> proposed patch
>
> I'm testing the following, but it does produce correct results
> on a spot check of emit-rtl.c:1833.
Yes, it
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69416
--- Comment #6 from Wilco ---
(In reply to Andrew Pinski from comment #4)
> Actually I think the problem is (const_int 8 [0x8]) does that make sense
> for CC mode? I don't think it does.
It should make sense as a CCmode immediate. It relies on
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69416
--- Comment #5 from Richard Henderson ---
Created attachment 37419
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=37419&action=edit
proposed patch
I'm testing the following, but it does produce correct results
on a spot check of emit-rtl.c
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69416
--- Comment #4 from Andrew Pinski ---
Actually I think the problem is (const_int 8 [0x8]) does that make sense for
CC mode? I don't think it does.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69416
--- Comment #3 from Richard Henderson ---
(In reply to Wilco from comment #2)
> It doesn't list the substitution before simplification, but it should be:
>
> (set (reg:SI 465)
> (gtu:SI
> (if_then_else:CC (ne (reg:SI 1002 [ ref_309(D)->
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69416
--- Comment #2 from Wilco ---
Started looking at this- it looks like line 1833 in emit-rtl.c gets miscompiled
in combine:
(insn 397 389 394 38 (set (reg:SI 462)
(const_int 29 [0x1d])) ./emit-rtl.c:1833 49 {*movsi_aarch64}
(nil))
(in
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69416
Richard Henderson changed:
What|Removed |Added
Keywords||build, ice-checking,
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69416
ktkachov at gcc dot gnu.org changed:
What|Removed |Added
Target||aarch64
Status|
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