https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89954
Uroš Bizjak changed:
What|Removed |Added
Assignee|unassigned at gcc dot gnu.org |ubizjak at gmail dot com
Target
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89954
--- Comment #11 from CVS Commits ---
The master branch has been updated by Uros Bizjak :
https://gcc.gnu.org/g:6f4459c478b1c09e4b5e7d629fbf46d2a4fe4560
commit r12-3991-g6f4459c478b1c09e4b5e7d629fbf46d2a4fe4560
Author: Uros Bizjak
Date: Thu
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89954
--- Comment #10 from Uroš Bizjak ---
(In reply to Hongtao.liu from comment #9)
> (In reply to Hongtao.liu from comment #8)
> > (In reply to Uroš Bizjak from comment #7)
> > > Created attachment 51496 [details]
> > > Prototype patch
> >
> > +;;
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89954
--- Comment #9 from Hongtao.liu ---
(In reply to Hongtao.liu from comment #8)
> (In reply to Uroš Bizjak from comment #7)
> > Created attachment 51496 [details]
> > Prototype patch
>
> +;; convert (sign_extend:WIDE (any_logic:NARROW (memory,
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89954
--- Comment #8 from Hongtao.liu ---
(In reply to Uroš Bizjak from comment #7)
> Created attachment 51496 [details]
> Prototype patch
+;; convert (sign_extend:WIDE (any_logic:NARROW (memory, immediate)))
+;; to (any_logic:WIDE (sign_extend
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89954
--- Comment #7 from Uroš Bizjak ---
Created attachment 51496
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=51496=edit
Prototype patch
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89954
--- Comment #6 from Hongtao.liu ---
(In reply to Uroš Bizjak from comment #5)
> (In reply to Hongtao.liu from comment #4)
> > It looks like there's splitter in aarch64 which combines
> > load+xor+zero_extend to zero_extend(mem) + xor, x86
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89954
--- Comment #5 from Uroš Bizjak ---
(In reply to Hongtao.liu from comment #4)
> It looks like there's splitter in aarch64 which combines
> load+xor+zero_extend to zero_extend(mem) + xor, x86 doesn't have. The simple
> way is to add corresponding
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89954
--- Comment #4 from Hongtao.liu ---
aarch64 dump---
Failed to match this instruction:
(set (reg:SI 95)
(xor:SI (zero_extend:SI (mem/c:QI (lo_sum:DI (reg/f:DI 97)
(symbol_ref:DI ("*.LANCHOR0") [flags 0x182]))
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89954
Andrew Pinski changed:
What|Removed |Added
Severity|normal |enhancement
--- Comment #3 from Andrew
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89954
--- Comment #2 from Andreas Schwab ---
Doesn't aarch64 always implicitly zero-extend when the dest is a 32-bit reg?
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89954
Andrew Pinski changed:
What|Removed |Added
Keywords||missed-optimization
Target|
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