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Utilize VN-based non-null knowledge better - #69808

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Utilize VN-based non-null knowledge better#69808
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SingleAccretion:More-Non-Null-AssertionProp

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Previously, global non-null assertion propagation would give up on any non-ADD(LCL_VAR, CONST)-like trees. This is correct for actual assertion-based propagation (since we record assertions based on conservative VNs and those propagate only through locals), but is unnecessarily conservative when it comes to utilizing non-nullness provided by VN.

Fix this by moving the IR checks after the VN check.

Diffs.

@ghostghost added area-CodeGen-coreclr CLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMI community-contribution Indicates that the PR has been added by a community member labels May 25, 2022
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Issue Details

Previously, global non-null assertion propagation would give up on any non-ADD(LCL_VAR, CONST)-like trees. This is correct for actual assertion-based propagation (since we record assertions based on conservative VNs and those propagate only through locals), but is unnecessarily conservative when it comes to utilizing non-nullness provided by VN.

Fix this by moving the IR checks after the VN check.

We are expecting a moderate amount of positive diffs.

Author:SingleAccretion
Assignees:-
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area-CodeGen-coreclr, community-contribution

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@SingleAccretion
SingleAccretionforce-pushed the More-Non-Null-AssertionProp branch from b535337 to b874a31CompareMay 25, 2022 18:12
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SingleAccretion marked this pull request as ready for review May 25, 2022 20:55
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Libraries Test Run checked coreclr Linux_musl arm Release failure is #60705

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Closed
@SingleAccretion
Utilize VN-based non-null knowledge better
21ea0b2
Previously, global non-null assertion propagation would give up
on any non-"ADD(LCL_VAR, CONST)"-like trees. This is correct for
actual assertion-based propagation (since we record assertions
based on conservative VNs and those propagate only through locals),
but is unnecessarily conservative when it comes to utilizing
non-nullness provided by VN.
Fix this by moving the IR checks after the VN check.
@SingleAccretion
SingleAccretionforce-pushed the More-Non-Null-AssertionProp branch from b874a31 to 21ea0b2CompareMay 28, 2022 12:42
@jakobbotsch
jakobbotsch self-requested a review June 2, 2022 19:06
@jakobbotsch
jakobbotsch merged commit 684fc2d into dotnet:mainJun 4, 2022
@jakobbotschjakobbotsch mentioned this pull request Jun 4, 2022
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SingleAccretion deleted the More-Non-Null-AssertionProp branch June 4, 2022 09:50
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Utilize VN-based non-null knowledge better by SingleAccretion · Pull Request #69808 · dotnet/runtime · GitHub
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Utilize VN-based non-null knowledge better - #69808
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jakobbotsch merged 1 commit into
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SingleAccretion:More-Non-Null-AssertionProp
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Merged
Utilize VN-based non-null knowledge better#69808
jakobbotsch merged 1 commit into
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SingleAccretion:More-Non-Null-AssertionProp
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Previously, global non-null assertion propagation would give up on any non-ADD(LCL_VAR, CONST)-like trees. This is correct for actual assertion-based propagation (since we record assertions based on conservative VNs and those propagate only through locals), but is unnecessarily conservative when it comes to utilizing non-nullness provided by VN.
Fix this by moving the IR checks after the VN check.
Diffs.
@ghostghost
added

area-CodeGen-coreclr
CLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMI
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Issue Details
Previously, global non-null assertion propagation would give up on any non-ADD(LCL_VAR, CONST)-like trees. This is correct for actual assertion-based propagation (since we record assertions based on conservative VNs and those propagate only through locals), but is unnecessarily conservative when it comes to utilizing non-nullness provided by VN.
Fix this by moving the IR checks after the VN check.
We are expecting a moderate amount of positive diffs.
Author:SingleAccretion
Assignees:-
Labels:
area-CodeGen-coreclr, community-contribution
Milestone:-
@SingleAccretion
SingleAccretionforce-pushed
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Libraries Test Run checked coreclr Linux_musl arm Release failure is #60705
@dotnet/jit-contrib
@elinor-fungelinor-fung
mentioned this pull request
May 25, 2022

Closed

@SingleAccretion
Utilize VN-based non-null knowledge better
21ea0b2
Previously, global non-null assertion propagation would give up
on any non-"ADD(LCL_VAR, CONST)"-like trees. This is correct for
actual assertion-based propagation (since we record assertions
based on conservative VNs and those propagate only through locals),
but is unnecessarily conservative when it comes to utilizing
non-nullness provided by VN.
Fix this by moving the IR checks after the VN check.
@SingleAccretion
SingleAccretionforce-pushed
the
More-Non-Null-AssertionProp
branch
from
b874a31 to
21ea0b2CompareMay 28, 2022 12:42
@jakobbotsch
jakobbotsch
self-requested a review
June 2, 2022 19:06
@jakobbotsch
jakobbotsch
merged commit 684fc2d
into
dotnet:mainJun 4, 2022
@jakobbotschjakobbotsch
mentioned this pull request
Jun 4, 2022
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Utilize VN-based non-null knowledge better by SingleAccretion · Pull Request #69808 · dotnet/runtime · GitHub
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Utilize VN-based non-null knowledge better - #69808
Merged
jakobbotsch merged 1 commit into
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SingleAccretion:More-Non-Null-AssertionProp
Jun 4, 2022
Merged
Utilize VN-based non-null knowledge better#69808
jakobbotsch merged 1 commit into
dotnet:mainfrom 
SingleAccretion:More-Non-Null-AssertionProp
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@SingleAccretionSingleAccretion
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May 25, 2022•

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Previously, global non-null assertion propagation would give up on any non-ADD(LCL_VAR, CONST)-like trees. This is correct for actual assertion-based propagation (since we record assertions based on conservative VNs and those propagate only through locals), but is unnecessarily conservative when it comes to utilizing non-nullness provided by VN.
Fix this by moving the IR checks after the VN check.
Diffs.
@ghostghost
added

area-CodeGen-coreclr
CLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMI
community-contribution
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labels
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Issue Details
Previously, global non-null assertion propagation would give up on any non-ADD(LCL_VAR, CONST)-like trees. This is correct for actual assertion-based propagation (since we record assertions based on conservative VNs and those propagate only through locals), but is unnecessarily conservative when it comes to utilizing non-nullness provided by VN.
Fix this by moving the IR checks after the VN check.
We are expecting a moderate amount of positive diffs.
Author:SingleAccretion
Assignees:-
Labels:
area-CodeGen-coreclr, community-contribution
Milestone:-
@SingleAccretion
SingleAccretionforce-pushed
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More-Non-Null-AssertionProp
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marked this pull request as ready for review
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ContributorAuthor
Libraries Test Run checked coreclr Linux_musl arm Release failure is #60705
@dotnet/jit-contrib
@elinor-fungelinor-fung
mentioned this pull request
May 25, 2022

Closed

@SingleAccretion
Utilize VN-based non-null knowledge better
21ea0b2
Previously, global non-null assertion propagation would give up
on any non-"ADD(LCL_VAR, CONST)"-like trees. This is correct for
actual assertion-based propagation (since we record assertions
based on conservative VNs and those propagate only through locals),
but is unnecessarily conservative when it comes to utilizing
non-nullness provided by VN.
Fix this by moving the IR checks after the VN check.
@SingleAccretion
SingleAccretionforce-pushed
the
More-Non-Null-AssertionProp
branch
from
b874a31 to
21ea0b2CompareMay 28, 2022 12:42
@jakobbotsch
jakobbotsch
self-requested a review
June 2, 2022 19:06
@jakobbotsch
jakobbotsch
merged commit 684fc2d
into
dotnet:mainJun 4, 2022
@jakobbotschjakobbotsch
mentioned this pull request
Jun 4, 2022
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@SingleAccretion
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try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
Utilize VN-based non-null knowledge better by SingleAccretion · Pull Request #69808 · dotnet/runtime · GitHub
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Utilize VN-based non-null knowledge better - #69808
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SingleAccretion:More-Non-Null-AssertionProp
Jun 4, 2022
Merged
Utilize VN-based non-null knowledge better#69808
jakobbotsch merged 1 commit into
dotnet:mainfrom 
SingleAccretion:More-Non-Null-AssertionProp
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@SingleAccretion
@SingleAccretionSingleAccretion
commented
May 25, 2022•

edited

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Previously, global non-null assertion propagation would give up on any non-ADD(LCL_VAR, CONST)-like trees. This is correct for actual assertion-based propagation (since we record assertions based on conservative VNs and those propagate only through locals), but is unnecessarily conservative when it comes to utilizing non-nullness provided by VN.
Fix this by moving the IR checks after the VN check.
Diffs.
@ghostghost
added

area-CodeGen-coreclr
CLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMI
community-contribution
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labels
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Issue Details
Previously, global non-null assertion propagation would give up on any non-ADD(LCL_VAR, CONST)-like trees. This is correct for actual assertion-based propagation (since we record assertions based on conservative VNs and those propagate only through locals), but is unnecessarily conservative when it comes to utilizing non-nullness provided by VN.
Fix this by moving the IR checks after the VN check.
We are expecting a moderate amount of positive diffs.
Author:SingleAccretion
Assignees:-
Labels:
area-CodeGen-coreclr, community-contribution
Milestone:-
@SingleAccretion
SingleAccretionforce-pushed
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marked this pull request as ready for review
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ContributorAuthor
Libraries Test Run checked coreclr Linux_musl arm Release failure is #60705
@dotnet/jit-contrib
@elinor-fungelinor-fung
mentioned this pull request
May 25, 2022

Closed

@SingleAccretion
Utilize VN-based non-null knowledge better
21ea0b2
Previously, global non-null assertion propagation would give up
on any non-"ADD(LCL_VAR, CONST)"-like trees. This is correct for
actual assertion-based propagation (since we record assertions
based on conservative VNs and those propagate only through locals),
but is unnecessarily conservative when it comes to utilizing
non-nullness provided by VN.
Fix this by moving the IR checks after the VN check.
@SingleAccretion
SingleAccretionforce-pushed
the
More-Non-Null-AssertionProp
branch
from
b874a31 to
21ea0b2CompareMay 28, 2022 12:42
@jakobbotsch
jakobbotsch
self-requested a review
June 2, 2022 19:06
@jakobbotsch
jakobbotsch
merged commit 684fc2d
into
dotnet:mainJun 4, 2022
@jakobbotschjakobbotsch
mentioned this pull request
Jun 4, 2022
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, 'i');
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// Strip utm_, fbclid, gclid, etc. from all links on page
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var __m = "youtube.com";
var __re = new RegExp('^' + "youtube\\.com" + '
Utilize VN-based non-null knowledge better by SingleAccretion · Pull Request #69808 · dotnet/runtime · GitHub
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Utilize VN-based non-null knowledge better - #69808
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SingleAccretion:More-Non-Null-AssertionProp
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Merged
Utilize VN-based non-null knowledge better#69808
jakobbotsch merged 1 commit into
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Previously, global non-null assertion propagation would give up on any non-ADD(LCL_VAR, CONST)-like trees. This is correct for actual assertion-based propagation (since we record assertions based on conservative VNs and those propagate only through locals), but is unnecessarily conservative when it comes to utilizing non-nullness provided by VN.
Fix this by moving the IR checks after the VN check.
Diffs.
@ghostghost
added

area-CodeGen-coreclr
CLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMI
community-contribution
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labels
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Issue Details
Previously, global non-null assertion propagation would give up on any non-ADD(LCL_VAR, CONST)-like trees. This is correct for actual assertion-based propagation (since we record assertions based on conservative VNs and those propagate only through locals), but is unnecessarily conservative when it comes to utilizing non-nullness provided by VN.
Fix this by moving the IR checks after the VN check.
We are expecting a moderate amount of positive diffs.
Author:SingleAccretion
Assignees:-
Labels:
area-CodeGen-coreclr, community-contribution
Milestone:-
@SingleAccretion
SingleAccretionforce-pushed
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marked this pull request as ready for review
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ContributorAuthor
Libraries Test Run checked coreclr Linux_musl arm Release failure is #60705
@dotnet/jit-contrib
@elinor-fungelinor-fung
mentioned this pull request
May 25, 2022

Closed

@SingleAccretion
Utilize VN-based non-null knowledge better
21ea0b2
Previously, global non-null assertion propagation would give up
on any non-"ADD(LCL_VAR, CONST)"-like trees. This is correct for
actual assertion-based propagation (since we record assertions
based on conservative VNs and those propagate only through locals),
but is unnecessarily conservative when it comes to utilizing
non-nullness provided by VN.
Fix this by moving the IR checks after the VN check.
@SingleAccretion
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Utilize VN-based non-null knowledge better by SingleAccretion · Pull Request #69808 · dotnet/runtime · GitHub
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Utilize VN-based non-null knowledge better - #69808
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SingleAccretion:More-Non-Null-AssertionProp
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Merged
Utilize VN-based non-null knowledge better#69808
jakobbotsch merged 1 commit into
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SingleAccretion:More-Non-Null-AssertionProp
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Previously, global non-null assertion propagation would give up on any non-ADD(LCL_VAR, CONST)-like trees. This is correct for actual assertion-based propagation (since we record assertions based on conservative VNs and those propagate only through locals), but is unnecessarily conservative when it comes to utilizing non-nullness provided by VN.
Fix this by moving the IR checks after the VN check.
Diffs.
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CLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMI
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Issue Details
Previously, global non-null assertion propagation would give up on any non-ADD(LCL_VAR, CONST)-like trees. This is correct for actual assertion-based propagation (since we record assertions based on conservative VNs and those propagate only through locals), but is unnecessarily conservative when it comes to utilizing non-nullness provided by VN.
Fix this by moving the IR checks after the VN check.
We are expecting a moderate amount of positive diffs.
Author:SingleAccretion
Assignees:-
Labels:
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Libraries Test Run checked coreclr Linux_musl arm Release failure is #60705
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@SingleAccretion
Utilize VN-based non-null knowledge better
21ea0b2
Previously, global non-null assertion propagation would give up
on any non-"ADD(LCL_VAR, CONST)"-like trees. This is correct for
actual assertion-based propagation (since we record assertions
based on conservative VNs and those propagate only through locals),
but is unnecessarily conservative when it comes to utilizing
non-nullness provided by VN.
Fix this by moving the IR checks after the VN check.
@SingleAccretion
SingleAccretionforce-pushed
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More-Non-Null-AssertionProp
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from
b874a31 to
21ea0b2CompareMay 28, 2022 12:42
@jakobbotsch
jakobbotsch
self-requested a review
June 2, 2022 19:06
@jakobbotsch
jakobbotsch
merged commit 684fc2d
into
dotnet:mainJun 4, 2022
@jakobbotschjakobbotsch
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Jun 4, 2022
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observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });
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} catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); }
})();
})();
Utilize VN-based non-null knowledge better by SingleAccretion · Pull Request #69808 · dotnet/runtime · GitHub
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Utilize VN-based non-null knowledge better - #69808
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jakobbotsch merged 1 commit into
dotnet:mainfrom 
SingleAccretion:More-Non-Null-AssertionProp
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Merged
Utilize VN-based non-null knowledge better#69808
jakobbotsch merged 1 commit into
dotnet:mainfrom 
SingleAccretion:More-Non-Null-AssertionProp
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Previously, global non-null assertion propagation would give up on any non-ADD(LCL_VAR, CONST)-like trees. This is correct for actual assertion-based propagation (since we record assertions based on conservative VNs and those propagate only through locals), but is unnecessarily conservative when it comes to utilizing non-nullness provided by VN.
Fix this by moving the IR checks after the VN check.
Diffs.
@ghostghost
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CLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMI
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Issue Details
Previously, global non-null assertion propagation would give up on any non-ADD(LCL_VAR, CONST)-like trees. This is correct for actual assertion-based propagation (since we record assertions based on conservative VNs and those propagate only through locals), but is unnecessarily conservative when it comes to utilizing non-nullness provided by VN.
Fix this by moving the IR checks after the VN check.
We are expecting a moderate amount of positive diffs.
Author:SingleAccretion
Assignees:-
Labels:
area-CodeGen-coreclr, community-contribution
Milestone:-
@SingleAccretion
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Libraries Test Run checked coreclr Linux_musl arm Release failure is #60705
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mentioned this pull request
May 25, 2022

Closed

@SingleAccretion
Utilize VN-based non-null knowledge better
21ea0b2
Previously, global non-null assertion propagation would give up
on any non-"ADD(LCL_VAR, CONST)"-like trees. This is correct for
actual assertion-based propagation (since we record assertions
based on conservative VNs and those propagate only through locals),
but is unnecessarily conservative when it comes to utilizing
non-nullness provided by VN.
Fix this by moving the IR checks after the VN check.
@SingleAccretion
SingleAccretionforce-pushed
the
More-Non-Null-AssertionProp
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from
b874a31 to
21ea0b2CompareMay 28, 2022 12:42
@jakobbotsch
jakobbotsch
self-requested a review
June 2, 2022 19:06
@jakobbotsch
jakobbotsch
merged commit 684fc2d
into
dotnet:mainJun 4, 2022
@jakobbotschjakobbotsch
mentioned this pull request
Jun 4, 2022
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1 task
@SingleAccretion
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Jul 4, 2022
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