https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95218
Richard Biener changed:
What|Removed |Added
Resolution|--- |FIXED
Status|ASSIGNED
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95218
--- Comment #19 from CVS Commits ---
The master branch has been updated by Uros Bizjak :
https://gcc.gnu.org/g:7797f5ec58078523a452e5cf239596e13d77d885
commit r11-535-g7797f5ec58078523a452e5cf239596e13d77d885
Author: Uros Bizjak
Date: Thu
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95218
--- Comment #18 from Uroš Bizjak ---
Created attachment 48575
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=48575=edit
Patch in testing.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95218
--- Comment #17 from Uroš Bizjak ---
The problem is with commutative operands, these somehow confuse postreload
pass.
I'll commit partial revert that basically puts back:
(define_insn_and_split "*2"
- [(set (match_operand:VF 0
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95218
Jeffrey A. Law changed:
What|Removed |Added
CC||law at redhat dot com
--- Comment #16
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95218
--- Comment #15 from Uroš Bizjak ---
(In reply to Jakub Jelinek from comment #13)
> So perhaps pre-reload splitter of that into the UNSPEC form?
Vector insns should be able to use pre-reload splitter, but scalar instructions
depend on
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95218
Uroš Bizjak changed:
What|Removed |Added
CC|uros at gcc dot gnu.org|
--- Comment #14 from Uroš Bizjak
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95218
Jakub Jelinek changed:
What|Removed |Added
CC||jakub at gcc dot gnu.org
--- Comment
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95218
--- Comment #12 from Uroš Bizjak ---
(In reply to Richard Biener from comment #11)
> Note a 'use' is not something that needs to be preserved, so
>
> (define_insn_and_split "*2"
> [(set (match_operand:VF 0 "register_operand" "=x,v")
>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95218
--- Comment #11 from Richard Biener ---
Note a 'use' is not something that needs to be preserved, so
(define_insn_and_split "*2"
[(set (match_operand:VF 0 "register_operand" "=x,v")
(absneg:VF
(match_operand:VF 1
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95218
--- Comment #10 from rguenther at suse dot de ---
On Wed, 20 May 2020, ubizjak at gmail dot com wrote:
> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95218
>
> Uroš Bizjak changed:
>
>What|Removed |Added
>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95218
Uroš Bizjak changed:
What|Removed |Added
CC||law at gcc dot gnu.org,
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95218
--- Comment #8 from Martin Liška ---
There's partially reduced test-case:
$ cat fma.i
double res_test0101[] = {
-3,1, 17,51,109, 197, 321, 487, 701, 969, 1297,
1691, 2157, 2701, 3329, 4047, 4861, 5777,
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95218
Uroš Bizjak changed:
What|Removed |Added
Status|NEW |ASSIGNED
Assignee|unassigned at
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95218
--- Comment #6 from Uroš Bizjak ---
I think I found the issue.
Before the patch, we had:
(insn 375 373 2574 7 (parallel [
(set (reg:V4DF 21 xmm1 [orig:1681 vect__45.441 ] [1681])
(neg:V4DF (mem/c:V4DF (plus:DI
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95218
--- Comment #5 from Martin Liška ---
Sure, doing that.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95218
--- Comment #4 from Uroš Bizjak ---
(In reply to Martin Liška from comment #3)
> Started with r11-455-g94f687bd9ae37ece.
It is not obvious from the referred patch what is going wrong here.
Unfortunately, I have no FMA capable machine, can
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95218
Martin Liška changed:
What|Removed |Added
CC||marxin at gcc dot gnu.org,
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95218
Richard Biener changed:
What|Removed |Added
Last reconfirmed||2020-05-20
Ever confirmed|0
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95218
Martin Sebor changed:
What|Removed |Added
See Also||https://gcc.gnu.org/bugzill
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