Displaying 20 results from an estimated 1000 matches similar to: "LLVM SCEV isAddRecNeverPoison and strength reduction"
2019 Sep 29
3
ScalarEvolution invariants around wrapping flags
Your reasoning sounds correct to me. Let's revert for now?
I don't think there is an easy fix, we'll have to do a global "must be
executed" analysis to reapply the patch soundly. And that's difficult
since any external functional call can call "exit(0)".
-- Sanjoy
On Thu, Sep 26, 2019 at 6:19 AM Tim Northover <t.p.northover at gmail.com> wrote:
>
2018 Feb 08
2
[SCEV] Inconsistent SCEV formation for zext
Hi Sanjoy,
SCEV is behaving inconsistently when forming SCEV for this zext instruction in the attached test case-
%conv5 = zext i32 %dec to i64
If we request a SCEV for the instruction, it returns-
(zext i32 {{-1,+,1}<nw><%for.body>,+,-1}<nw><%for.body7> to i64)
This can be seen by invoking-
$ opt -analyze -scalar-evolution inconsistent-scev-zext.ll
But when computing
2018 Feb 26
2
[SCEV] Inconsistent SCEV formation for zext
Hi Sanjoy,
>> I'm a bit apprehensive of adding more caching to solve problems created by caching; but if there is no way out of adding another cache, how about adding a cache that maps SCEV expressions to their simplified versions? Then we could do something like:
I may be wrong but I think caching is not an issue in itself, but caching in the presence of self-recursion is.
>>
2008 Nov 05
3
Porting Speex to embedded 32bit
Dear Speex developers
I am going to port Speex on LPC2368
I tested Speex encoding and the mesurments shows ~40ms cpu time for one
frame
Do you know who ported speex to NXP or other 32bit platform?
Best Regards
Zohar fox
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2018 Feb 11
2
[SCEV] Inconsistent SCEV formation for zext
Hi Sanjoy,
Thanks for investigating the issue!
I am more interested in getting the underlying problem fixed rather than making this particular test case work. I think I have more test cases where this problem crops up. I would any day prefer consistent results over compile time savings which can lead to inconsistencies. These inconsistencies require significant developer time to analyze and fix
2018 Feb 10
0
[SCEV] Inconsistent SCEV formation for zext
Hi,
+CC Max, Serguei
This looks like a textbook case of why caching is hard.
We first call getZeroExtendExpr on %dec, and this call does end up
returning an add rec. However, in the process of simplifying the
zext, it also calls into isLoopBackedgeGuardedByCond which in turn
calls getZeroExtendExpr(%dec) again. However, this second (recursive)
time, we don't simplify the zext and cache a
2018 Mar 13
2
[SCEV] Inconsistent SCEV formation for zext
This sounds fine to me (and sorry for the delay!).
-- Sanjoy
On Mon, Mar 12, 2018 at 1:09 PM, Chawla, Pankaj <pankaj.chawla at intel.com> wrote:
> Hi Sanjoy,
>
> So what is the verdict on this issue?
>
> Thanks,
> Pankaj
>
>
> -----Original Message-----
> From: Chawla, Pankaj
> Sent: Monday, February 26, 2018 11:12 AM
> To: Sanjoy Das <sanjoy at
2023 Mar 14
1
[PATCH v8 3/6] security: Remove security_old_inode_init_security()
From: Roberto Sassu <roberto.sassu at huawei.com>
As the remaining two users reiserfs and ocfs2 switched to
security_inode_init_security(), security_old_inode_init_security() can be
now removed.
Out-of-tree kernel modules should switch to security_inode_init_security()
too.
Signed-off-by: Roberto Sassu <roberto.sassu at huawei.com>
Reviewed-by: Casey Schaufler <casey at
2023 Mar 14
1
[PATCH v8 1/6] reiserfs: Switch to security_inode_init_security()
From: Roberto Sassu <roberto.sassu at huawei.com>
In preparation for removing security_old_inode_init_security(), switch to
security_inode_init_security(). Commit 572302af1258 ("reiserfs: Add missing
calls to reiserfs_security_free()") fixed possible memory leaks and another
issue related to adding an xattr at inode creation time.
Define the initxattrs callback
2004 Aug 23
2
Reading GAL file
Greetings:
I am trying to work with spdep (everything is "brand new" downloaded this morning). OS = Windows 2000 (also up to date). The code I am using follows:
#example
gal.county=read.geoda("lnpilnd.GAL", row.names=NULL, skip=0)
summary.nb(gal.county)
Error in summary.nb(gal.county) : Not a neighbours list
#end
The gal file works just fine in GeoDa (also up to date).
2018 Feb 20
0
[SCEV] Inconsistent SCEV formation for zext
Hi Pankaj,
On Sun, Feb 11, 2018 at 2:32 PM, Chawla, Pankaj <pankaj.chawla at intel.com> wrote:
> Thanks for investigating the issue!
>
> I am more interested in getting the underlying problem fixed rather than making this particular test case work. I think I have more test cases where this problem crops up. I would any day prefer consistent results over compile time savings which
2018 Mar 12
0
[SCEV] Inconsistent SCEV formation for zext
Hi Sanjoy,
So what is the verdict on this issue?
Thanks,
Pankaj
-----Original Message-----
From: Chawla, Pankaj
Sent: Monday, February 26, 2018 11:12 AM
To: Sanjoy Das <sanjoy at playingwithpointers.com>
Cc: Maxim Kazantsev <max.kazantsev at azul.com>; Serguei Katkov <serguei.katkov at azul.com>; llvm-dev at lists.llvm.org
Subject: RE: [SCEV] Inconsistent SCEV formation for
2006 Oct 26
6
Client-identifier option in PXE search order
Hello,
Is there any plan to use the client identifier field as part of the PXE
search order ?
This will be helpful when using PXELINUX on Infiniband network which do
not have 6 byte Ethernet MAC address.
Thanks,
_________________________________________________
Nir Gal | +972-9-9717685 (o) | +972-54-499-6633 (m)
Manager, Customer Support
Voltaire - The Grid Backbone
www.voltaire.com
2022 Dec 01
1
[PATCH v7 3/6] security: Remove security_old_inode_init_security()
From: Roberto Sassu <roberto.sassu at huawei.com>
As the remaining two users reiserfs and ocfs2 switched to
security_inode_init_security(), security_old_inode_init_security() can be
now removed.
Out-of-tree kernel modules should switch to security_inode_init_security()
too.
Signed-off-by: Roberto Sassu <roberto.sassu at huawei.com>
Reviewed-by: Casey Schaufler <casey at
2019 Sep 19
2
ScalarEvolution invariants around wrapping flags
On 9/19/2019 9:41 AM, Andrew Trick via llvm-dev wrote:
>
>> On Sep 18, 2019, at 8:17 PM, Sanjoy Das <sanjoy at playingwithpointers.com> wrote:
>>
>>> 1. Callers are expected to not engage in speculation. ScalarEvolution
>>> itself must only create expressions it knows hold in all cases.
>> This is correct. There is some more relevant text in
>>
2002 Jul 01
1
Substitutions in strings.
Hi all,
Sorry to bother you with the potentially not too bright question, but
since I cannot get it to work, I'll have to ask someone..
I've got this vector:
> token
[1] sal skal skal bak b_r d_ gal kal l_r n_r pak
p_r
[13] sal sl_r sn_r spak sp_r st_r s_ bak d_ gal l_r
pak
[25] p_r sak sl_r sp_r t_ kal n_r s_ st_r sak kal
2018 Mar 13
0
[SCEV] Inconsistent SCEV formation for zext
Hi Sanjoy,
Thanks for the reply!
Would it be possible for you to implement this?
You know the codebase better than I do.
Thanks,
Pankaj
-----Original Message-----
From: Sanjoy Das [mailto:sanjoy at playingwithpointers.com]
Sent: Tuesday, March 13, 2018 1:34 PM
To: Chawla, Pankaj <pankaj.chawla at intel.com>
Cc: Maxim Kazantsev <max.kazantsev at azul.com>; Serguei Katkov
2007 Feb 06
2
How to do "moran's I test"?
I want to do "moran's I test" in R language. I try to use "gearymoran" in
Package "ade4","moran" in Package "spdep", and Moran.I in Package "ape". But
I do not know how to do it because data format is different.
My data:
x y dbh
111.03 10.7 7
118.11 0.28 1.2
165.36 0.36 8.4
2007 Apr 20
2
limmaGUI
Dear all,
I have a question about limmaGUI that is usually run in R environment.
My problem is loading data into the programm. I have 6 gpr files that
apparently are not compatible with limma. Everytime I'm trying to load
the data (including a RNA targets file, an error appears:Error reading
files. that I'm not sure,but seems to have something to do with the
format of my files
2018 Mar 13
1
[SCEV] Inconsistent SCEV formation for zext
Hi Pankaj,
On Tue, Mar 13, 2018 at 1:55 PM, Chawla, Pankaj <pankaj.chawla at intel.com> wrote:
> Thanks for the reply!
> Would it be possible for you to implement this?
I don't have cycles for this right now, but if you file a bug I can
give this a shot when I have time later. Even in the best case this
will have to at least wait until end of April because I'm leaving for
a