Displaying 13 results from an estimated 13 matches for "layoutpasses".
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layoutpass
2014 Jul 10
2
[LLVMdev] [lld] LLD's software architecture (update)
Well, it does have a Registry& that's defined in Reader.h.
But that can be forward declared (and apparently is in some
of the other headers it includes.
On Thu, Jul 10, 2014 at 12:08 PM, Andreas Wendleder <
andreas.wendleder at googlemail.com> wrote:
> Hi
>
> - passes depend on Reader and Writer
>>
>
> That's an easy one. Compile tested on Windows with
2015 Jan 22
5
[LLVMdev] LLD: Simplify LayoutPass
In r226336 I shove off 1.2 seconds out of 9.8 seconds for lld to link lld.
That's done by parallelizing archive member parsing. But I realized that
was not the slowest pass.
The single slowest pass in LLD is LayoutPass. Only sort() at the last of
Layoutpass::perform takes about 3 seconds (one third of total execution
time). It is because the comparison function passed to sort, compareAtoms,
2014 Jul 10
2
[LLVMdev] [lld] LLD's software architecture (update)
Yes, but if you look in LayoutPasses.c, it calls
registry.referenceKindToString(..),
so it does need the definition..
On Thu, Jul 10, 2014 at 2:30 PM, Jean-Daniel Dupas <mailing at xenonium.com>
wrote:
> Using forward-declaration would not fix the layer violation.
>
> Le 10 juil. 2014 à 13:10, Bas van den Berg <b....
2015 Feb 12
2
[LLVMdev] [lld] alias atoms and LayoutPass
Hi,
It looks like the COFF reader creates an Alias atom by adding a
kindLayoutAfter reference to the target atom. Now since the
kindLayoutAfter passes are moved to machO how does it still work ?
Does it work by chance because of ordinals ? I would think moving
kindLayoutAfter references and having the LayoutPass would be a better
choice.
Shankar Easwaran
--
Qualcomm Innovation Center,
2014 Jul 10
2
[LLVMdev] [lld] LLD's software architecture (update)
I've run a new scan of LLD's architecture and it appears to be getting
cleaner!
There are still some upward dependencies however:
- core depends on Reader and Writer
- passes depend on Reader and Writer
- ReaderWriter/PECOFF/ReaderCOFF.cpp depends on Driver.h
The updated architecture can be seen here:
http://www.c2lang.org/docs/lld_architecture_20140710.png
On Tue, Jun 3, 2014 at 3:07
2014 Mar 27
2
[LLVMdev] [lld] Subclassing LayoutPass
Hi,
I think it would be great if we could subclass the LayoutPass.
All the generic functionality could be in the parent to run the
layout-after/in-group/ and currently the layout-before passes(until it
gets removed).
Flavors can *choose to run the layout passes* that they use and
determine the way things get ordered in the layout pass.
The compare function in the LayoutPass would call
2014 Mar 21
3
[LLVMdev] LLD: Layout-after and layout-before
+llvmdev
On Fri, Mar 21, 2014 at 3:43 PM, Rui Ueyama <ruiu at google.com> wrote:
> Hi all,
>
> I'm trying to debug an issue that LLD sometimes get into an infinite loop
> in setChainRoot() in LayoutPass.cpp. It looks like the cause is either
> buildPrecededByTable() handles layoutBefore edges in a wrong way or we
> construct a contradictory layout-before/layout-after
2014 Mar 21
2
[LLVMdev] LLD: Layout-after and layout-before
Thank you for quick responses!
As to dead stripping, if dead stripping is the only pass we need
bi-directional edges, we might want the dead stripping pass to construct
internal data structure by reversing the graph to construct layout-before
edges from layout-after edges. This should be less error prone than
maintaining two reverse-directional edges throughout all passes. Of course
it will make
2015 Jan 27
3
[LLVMdev] [lld] Overloaded Layout references
Hi,
I think we are overloading the Layout references for garbage collection.
If you are creating a reference (kindLayoutAfter) from A to B, that may not mean that you cannot garbage collect B for the end user.
My thought on Layout references was that it only guarantees that atoms appear in Layout reference order.
Why are we overloading this for Garbage collection (aside from saving space/code)
2013 Oct 07
2
[LLVMdev] [lld][failing test] the reason of ifunc.test failing
Hi,
It looks like the the ELFPassFile doesnot get an ordinal value assigned,
as its added in a pass.
Is there a way to assign a file ordinal for the files added by Passes ?
Till that time, I am going to XFAIL the ifunc test.
More tests should fail, and am not sure why they are not failing.
Thanks
Shankar Easwaran
--
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, hosted
2013 Oct 07
0
[LLVMdev] [lld][failing test] the reason of ifunc.test failing
In addition I think the LayoutPass std::stable_sort be replaced with
std::sort as total ordering is guaranteed as each File would get an
ordinal and each atom would get an ordinal too, after the below problem
is fixed.
Thanks
Shankar Easwaran
On 10/6/2013 10:54 PM, Shankar Easwaran wrote:
> Hi,
>
> It looks like the the ELFPassFile doesnot get an ordinal value
> assigned, as its
2013 Oct 07
2
[LLVMdev] [lld][failing test] the reason of ifunc.test failing
Ping ?
Do you think that we need to have an API in LinkingContext to return the
next ordinal available, so that files created by passes can be assigned
ordinals ?
Thanks
Shankar Easwaran
On 10/6/2013 11:07 PM, Shankar Easwaran wrote:
> In addition I think the LayoutPass std::stable_sort be replaced with
> std::sort as total ordering is guaranteed as each File would get an
>
2013 Oct 07
0
[LLVMdev] [lld][failing test] the reason of ifunc.test failing
On Mon, Oct 7, 2013 at 11:51 AM, Shankar Easwaran
<shankare at codeaurora.org>wrote:
> Ping ?
>
> Do you think that we need to have an API in LinkingContext to return the
> next ordinal available, so that files created by passes can be assigned
> ordinals ?
>
That API may work, but I don't think you always want to assign the largest
file ordinal for a file created in