On Wed, Sep 8, 2021 at 10:50 PM Erick Ochoa via Gcc wrote:
>
> Hello,
>
> I am refactoring some old code that runs as an IPA_PASS. This code is
> intended to run at link-time using the LTO framework and so I am
> always testing it that way. At the moment, I am trying to use
> hash-maps but having
On 9/9/21 8:57 AM, Richard Biener wrote:
On Wed, Sep 8, 2021 at 8:13 PM Michael Matz wrote:
Hello,
[lame answer to self]
On Wed, 8 Sep 2021, Michael Matz wrote:
The forward threader guards against this by simply disallowing
threadings that involve different loops. As I see
The thread
On Thu, Sep 9, 2021 at 9:37 AM Aldy Hernandez wrote:
>
>
>
> On 9/9/21 8:57 AM, Richard Biener wrote:
> > On Wed, Sep 8, 2021 at 8:13 PM Michael Matz wrote:
> >>
> >> Hello,
> >>
> >> [lame answer to self]
> >>
> >> On Wed, 8 Sep 2021, Michael Matz wrote:
> >>
> > The forward threader guards
On 9/8/21 8:13 PM, Michael Matz wrote:
Hello,
[lame answer to self]
On Wed, 8 Sep 2021, Michael Matz wrote:
The forward threader guards against this by simply disallowing
threadings that involve different loops. As I see
The thread in question (5->9->3) is all within the same outer loop
On Thu, Sep 9, 2021 at 10:14 AM Aldy Hernandez wrote:
>
>
>
> On 9/8/21 8:13 PM, Michael Matz wrote:
> > Hello,
> >
> > [lame answer to self]
> >
> > On Wed, 8 Sep 2021, Michael Matz wrote:
> >
> The forward threader guards against this by simply disallowing
> threadings that involve dif
On 9/9/21 9:45 AM, Richard Biener wrote:
On Thu, Sep 9, 2021 at 9:37 AM Aldy Hernandez wrote:
On 9/9/21 8:57 AM, Richard Biener wrote:
On Wed, Sep 8, 2021 at 8:13 PM Michael Matz wrote:
Hello,
[lame answer to self]
On Wed, 8 Sep 2021, Michael Matz wrote:
The forward threader guard
On Thu, Sep 9, 2021 at 10:36 AM Aldy Hernandez wrote:
>
>
>
> On 9/9/21 9:45 AM, Richard Biener wrote:
> > On Thu, Sep 9, 2021 at 9:37 AM Aldy Hernandez wrote:
> >>
> >>
> >>
> >> On 9/9/21 8:57 AM, Richard Biener wrote:
> >>> On Wed, Sep 8, 2021 at 8:13 PM Michael Matz wrote:
>
> Hell
On 9/9/21 10:58 AM, Richard Biener wrote:
On Thu, Sep 9, 2021 at 10:36 AM Aldy Hernandez wrote:
On 9/9/21 9:45 AM, Richard Biener wrote:
On Thu, Sep 9, 2021 at 9:37 AM Aldy Hernandez wrote:
On 9/9/21 8:57 AM, Richard Biener wrote:
On Wed, Sep 8, 2021 at 8:13 PM Michael Matz wrote:
On Thu, Sep 9, 2021 at 11:21 AM Aldy Hernandez wrote:
>
>
>
> On 9/9/21 10:58 AM, Richard Biener wrote:
> > On Thu, Sep 9, 2021 at 10:36 AM Aldy Hernandez wrote:
> >>
> >>
> >>
> >> On 9/9/21 9:45 AM, Richard Biener wrote:
> >>> On Thu, Sep 9, 2021 at 9:37 AM Aldy Hernandez wrote:
>
>
On 9/9/21 12:15 PM, Richard Biener wrote:
On Thu, Sep 9, 2021 at 11:21 AM Aldy Hernandez wrote:
On 9/9/21 10:58 AM, Richard Biener wrote:
I ran some experiments a while back, and my current work on the enhanced
solver/threader, can fold virtually everything the DOM/threader gets
(even wit
Hello,
On Thu, 9 Sep 2021, Richard Biener wrote:
> > I believe something like below would be appropriate, it disables
> > threading if the path contains a latch at the non-last position (due
> > to being backwards on the non-first position in the array). I.e. it
> > disables rotating the loop
Hello,
On Thu, 9 Sep 2021, Aldy Hernandez wrote:
> The ldist-22 regression is interesting though:
>
> void foo ()
> {
> int i;
>
>:
> goto ; [INV]
>
>:
> a[i_1] = 0;
> if (i_1 > 100)
> goto ; [INV]
> else
> goto ; [INV]
>
>:
> b[i_1] = i_1;
>
>:
> i_8 =
On 9/9/21 2:52 PM, Michael Matz wrote:
Hello,
On Thu, 9 Sep 2021, Aldy Hernandez wrote:
The ldist-22 regression is interesting though:
void foo ()
{
int i;
:
goto ; [INV]
:
a[i_1] = 0;
if (i_1 > 100)
goto ; [INV]
else
goto ; [INV]
:
b[i_1] = i_1;
Hello,
On Thu, 9 Sep 2021, Aldy Hernandez wrote:
> > Here there's no simple latch block to start with (the backedge comes
> > directly out of the loop exit block). So my suggested improvement
> > (testing if the latch was empty and only then reject the thread), would
> > solve this.
>
> Well, t
On 9/9/21 4:44 PM, Michael Matz wrote:
Hello,
On Thu, 9 Sep 2021, Aldy Hernandez wrote:
Here there's no simple latch block to start with (the backedge comes
directly out of the loop exit block). So my suggested improvement
(testing if the latch was empty and only then reject the thread), w
On 9/9/2021 2:14 AM, Aldy Hernandez wrote:
On 9/8/21 8:13 PM, Michael Matz wrote:
Hello,
[lame answer to self]
On Wed, 8 Sep 2021, Michael Matz wrote:
The forward threader guards against this by simply disallowing
threadings that involve different loops. As I see
The thread in questi
On 9/9/2021 2:58 AM, Richard Biener wrote:
On Thu, Sep 9, 2021 at 10:36 AM Aldy Hernandez wrote:
On 9/9/21 9:45 AM, Richard Biener wrote:
On Thu, Sep 9, 2021 at 9:37 AM Aldy Hernandez wrote:
On 9/9/21 8:57 AM, Richard Biener wrote:
On Wed, Sep 8, 2021 at 8:13 PM Michael Matz wrote:
Snapshot gcc-9-20210909 is now available on
https://gcc.gnu.org/pub/gcc/snapshots/9-20210909/
and on various mirrors, see http://gcc.gnu.org/mirrors.html for details.
This snapshot has been generated from the GCC 9 git branch
with the following options: git://gcc.gnu.org/git/gcc.git branch
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