Skip to content

JIT: Optimize liveness fixpoint computation - #89328

Merged
jakobbotsch merged 3 commits into
dotnet:mainfrom
jakobbotsch:liveness-visit-regular-succs
Aug 28, 2023
Merged

JIT: Optimize liveness fixpoint computation#89328
jakobbotsch merged 3 commits into
dotnet:mainfrom
jakobbotsch:liveness-visit-regular-succs

Conversation

@jakobbotsch

Copy link
Copy Markdown
Member

When propagating liveness as part of the fixpoint computation we union the live-in state of all successors into the live-out state. We then further handle EH successors more conservatively since control can flow to those from any point in the BB.

The all-successors include successors from two additional sources compared to the regular successors:

  1. They include the EH successors, but we already handle these conservatively later, so this is unnecessary.
  2. They include EH successors of regular successors, but this liveness is already contributed from the regular successors since they will contain it in their live-in state at some point during the fixpoint computation.

Thus we can switch the first loop in liveness to only look at regular successors.

When propagating liveness as part of the fixpoint computation we union
the live-in state of all successors into the live-out state. We then
further handle EH successors more conservatively since control can flow
to those from any point in the BB.
The all-successors include successors from two additional sources
compared to the regular successors:
1. They include the EH successors, but we already handle these
conservatively later, so this is unnecessary.
2. They include EH successors of regular successors, but this liveness
is already contributed from the regular successors since they will
contain it in their live-in state at some point during the fixpoint
computation.
Thus we can switch the first loop in liveness to only look at regular
successors.
@ghostghost added the area-CodeGen-coreclr CLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMI label Jul 21, 2023
@ghost

Copy link
Copy Markdown

Tagging subscribers to this area: @JulieLeeMSFT, @jakobbotsch
See info in area-owners.md if you want to be subscribed.

Issue Details

When propagating liveness as part of the fixpoint computation we union the live-in state of all successors into the live-out state. We then further handle EH successors more conservatively since control can flow to those from any point in the BB.

The all-successors include successors from two additional sources compared to the regular successors:

  1. They include the EH successors, but we already handle these conservatively later, so this is unnecessary.
  2. They include EH successors of regular successors, but this liveness is already contributed from the regular successors since they will contain it in their live-in state at some point during the fixpoint computation.

Thus we can switch the first loop in liveness to only look at regular successors.

Author:jakobbotsch
Assignees:-
Labels:

area-CodeGen-coreclr

Milestone:-

@jakobbotsch

Copy link
Copy Markdown
MemberAuthor

/azp run runtime-coreclr superpmi-diffs

@azure-pipelines

Copy link
Copy Markdown
Azure Pipelines successfully started running 1 pipeline(s).

@jakobbotsch

Copy link
Copy Markdown
MemberAuthor

/azp run runtime-coreclr jitstress, runtime-coreclr libraries-jitstress

@azure-pipelines

Copy link
Copy Markdown
Azure Pipelines successfully started running 2 pipeline(s).

@jakobbotsch
jakobbotsch marked this pull request as ready for review August 25, 2023 19:05
@jakobbotsch

Copy link
Copy Markdown
MemberAuthor

cc @dotnet/jit-contrib PTAL @BruceForstall

No diffs except for good TP improvements (e.g. -1.3% in asp.net win-x64).

@BruceForstallBruceForstall left a comment

Copy link
Copy Markdown
Contributor

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

LGTM

@jakobbotsch
jakobbotsch merged commit a7d4b4b into dotnet:mainAug 28, 2023
@jakobbotsch
jakobbotsch deleted the liveness-visit-regular-succs branch August 28, 2023 08:13
@ghostghost locked as resolved and limited conversation to collaborators Sep 27, 2023
Sign up for freeto subscribe to this conversation on GitHub. Already have an account? Sign in.

Labels

area-CodeGen-coreclrCLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMI

Projects

None yet

Development

Successfully merging this pull request may close these issues.

2 participants

@jakobbotsch@BruceForstall
, 'i'); if (__m === '*' || __re.test(location.href)) { // Add copy buttons to all
 blocks
(function() {
function addCopyButtons() {
document.querySelectorAll('pre code').forEach(function(codeBlock) {
if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;
codeBlock.parentElement.setAttribute('data-copy-added', 'true');
var btn = document.createElement('button');
btn.textContent = 'Copy';
btn.style.cssText = 'position:absolute;top:4px;right:4px;padding:2px 8px;font-size:11px;background:#4ecdc4;border:none;border-radius:4px;color:#1a1a2e;cursor:pointer;opacity:0.7;transition:opacity 0.2s;';
btn.onmouseover = function() { this.style.opacity = '1'; };
btn.onmouseout = function() { this.style.opacity = '0.7'; };
btn.onclick = function() {
navigator.clipboard.writeText(codeBlock.textContent).then(function() {
btn.textContent = 'Copied!';
setTimeout(function() { btn.textContent = 'Copy'; }, 1500);
});
};
codeBlock.parentElement.style.position = 'relative';
codeBlock.parentElement.appendChild(btn);
});
}
addCopyButtons();
// Re-run on dynamic content
var observer = new MutationObserver(addCopyButtons);
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '
JIT: Optimize liveness fixpoint computation by jakobbotsch · Pull Request #89328 · dotnet/runtime · GitHub
Skip to content

JIT: Optimize liveness fixpoint computation - #89328

Merged
jakobbotsch merged 3 commits into
dotnet:mainfrom
jakobbotsch:liveness-visit-regular-succs
Aug 28, 2023
Merged

JIT: Optimize liveness fixpoint computation#89328
jakobbotsch merged 3 commits into
dotnet:mainfrom
jakobbotsch:liveness-visit-regular-succs

Conversation

@jakobbotsch

Copy link
Copy Markdown
Member

When propagating liveness as part of the fixpoint computation we union the live-in state of all successors into the live-out state. We then further handle EH successors more conservatively since control can flow to those from any point in the BB.

The all-successors include successors from two additional sources compared to the regular successors:

  1. They include the EH successors, but we already handle these conservatively later, so this is unnecessary.
  2. They include EH successors of regular successors, but this liveness is already contributed from the regular successors since they will contain it in their live-in state at some point during the fixpoint computation.

Thus we can switch the first loop in liveness to only look at regular successors.

When propagating liveness as part of the fixpoint computation we union
the live-in state of all successors into the live-out state. We then
further handle EH successors more conservatively since control can flow
to those from any point in the BB.
The all-successors include successors from two additional sources
compared to the regular successors:
1. They include the EH successors, but we already handle these
conservatively later, so this is unnecessary.
2. They include EH successors of regular successors, but this liveness
is already contributed from the regular successors since they will
contain it in their live-in state at some point during the fixpoint
computation.
Thus we can switch the first loop in liveness to only look at regular
successors.
@ghostghost added the area-CodeGen-coreclr CLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMI label Jul 21, 2023
@ghost

Copy link
Copy Markdown

Tagging subscribers to this area: @JulieLeeMSFT, @jakobbotsch
See info in area-owners.md if you want to be subscribed.

Issue Details

When propagating liveness as part of the fixpoint computation we union the live-in state of all successors into the live-out state. We then further handle EH successors more conservatively since control can flow to those from any point in the BB.

The all-successors include successors from two additional sources compared to the regular successors:

  1. They include the EH successors, but we already handle these conservatively later, so this is unnecessary.
  2. They include EH successors of regular successors, but this liveness is already contributed from the regular successors since they will contain it in their live-in state at some point during the fixpoint computation.

Thus we can switch the first loop in liveness to only look at regular successors.

Author:jakobbotsch
Assignees:-
Labels:

area-CodeGen-coreclr

Milestone:-

@jakobbotsch

Copy link
Copy Markdown
MemberAuthor

/azp run runtime-coreclr superpmi-diffs

@azure-pipelines

Copy link
Copy Markdown
Azure Pipelines successfully started running 1 pipeline(s).

@jakobbotsch

Copy link
Copy Markdown
MemberAuthor

/azp run runtime-coreclr jitstress, runtime-coreclr libraries-jitstress

@azure-pipelines

Copy link
Copy Markdown
Azure Pipelines successfully started running 2 pipeline(s).

@jakobbotsch
jakobbotsch marked this pull request as ready for review August 25, 2023 19:05
@jakobbotsch

Copy link
Copy Markdown
MemberAuthor

cc @dotnet/jit-contrib PTAL @BruceForstall

No diffs except for good TP improvements (e.g. -1.3% in asp.net win-x64).

@BruceForstallBruceForstall left a comment

Copy link
Copy Markdown
Contributor

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

LGTM

@jakobbotsch
jakobbotsch merged commit a7d4b4b into dotnet:mainAug 28, 2023
@jakobbotsch
jakobbotsch deleted the liveness-visit-regular-succs branch August 28, 2023 08:13
@ghostghost locked as resolved and limited conversation to collaborators Sep 27, 2023
Sign up for freeto subscribe to this conversation on GitHub. Already have an account? Sign in.

Labels

area-CodeGen-coreclrCLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMI

Projects

None yet

Development

Successfully merging this pull request may close these issues.

2 participants

@jakobbotsch@BruceForstall
, 'i'); if (__m === '*' || __re.test(location.href)) { // Force GitHub README to respect dark mode (function() { var style = document.createElement('style'); style.textContent = ' .markdown-body { color-scheme: dark light; } .markdown-body pre { background: #161b22 !important; } .markdown-body code { background: rgba(110, 118, 129, 0.4) !important; } .markdown-body table th, .markdown-body table td { border-color: #30363d !important; } .markdown-body img { background: #0d1117; } .markdown-body blockquote { border-left-color: #8b949e; } .markdown-body hr { border-color: #30363d; } '; document.head.appendChild(style); })(); } } catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + ' JIT: Optimize liveness fixpoint computation by jakobbotsch · Pull Request #89328 · dotnet/runtime · GitHub
Skip to content

JIT: Optimize liveness fixpoint computation - #89328

Merged
jakobbotsch merged 3 commits into
dotnet:mainfrom
jakobbotsch:liveness-visit-regular-succs
Aug 28, 2023
Merged

JIT: Optimize liveness fixpoint computation#89328
jakobbotsch merged 3 commits into
dotnet:mainfrom
jakobbotsch:liveness-visit-regular-succs

Conversation

@jakobbotsch

Copy link
Copy Markdown
Member

When propagating liveness as part of the fixpoint computation we union the live-in state of all successors into the live-out state. We then further handle EH successors more conservatively since control can flow to those from any point in the BB.

The all-successors include successors from two additional sources compared to the regular successors:

  1. They include the EH successors, but we already handle these conservatively later, so this is unnecessary.
  2. They include EH successors of regular successors, but this liveness is already contributed from the regular successors since they will contain it in their live-in state at some point during the fixpoint computation.

Thus we can switch the first loop in liveness to only look at regular successors.

When propagating liveness as part of the fixpoint computation we union
the live-in state of all successors into the live-out state. We then
further handle EH successors more conservatively since control can flow
to those from any point in the BB.
The all-successors include successors from two additional sources
compared to the regular successors:
1. They include the EH successors, but we already handle these
conservatively later, so this is unnecessary.
2. They include EH successors of regular successors, but this liveness
is already contributed from the regular successors since they will
contain it in their live-in state at some point during the fixpoint
computation.
Thus we can switch the first loop in liveness to only look at regular
successors.
@ghostghost added the area-CodeGen-coreclr CLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMI label Jul 21, 2023
@ghost

Copy link
Copy Markdown

Tagging subscribers to this area: @JulieLeeMSFT, @jakobbotsch
See info in area-owners.md if you want to be subscribed.

Issue Details

When propagating liveness as part of the fixpoint computation we union the live-in state of all successors into the live-out state. We then further handle EH successors more conservatively since control can flow to those from any point in the BB.

The all-successors include successors from two additional sources compared to the regular successors:

  1. They include the EH successors, but we already handle these conservatively later, so this is unnecessary.
  2. They include EH successors of regular successors, but this liveness is already contributed from the regular successors since they will contain it in their live-in state at some point during the fixpoint computation.

Thus we can switch the first loop in liveness to only look at regular successors.

Author:jakobbotsch
Assignees:-
Labels:

area-CodeGen-coreclr

Milestone:-

@jakobbotsch

Copy link
Copy Markdown
MemberAuthor

/azp run runtime-coreclr superpmi-diffs

@azure-pipelines

Copy link
Copy Markdown
Azure Pipelines successfully started running 1 pipeline(s).

@jakobbotsch

Copy link
Copy Markdown
MemberAuthor

/azp run runtime-coreclr jitstress, runtime-coreclr libraries-jitstress

@azure-pipelines

Copy link
Copy Markdown
Azure Pipelines successfully started running 2 pipeline(s).

@jakobbotsch
jakobbotsch marked this pull request as ready for review August 25, 2023 19:05
@jakobbotsch

Copy link
Copy Markdown
MemberAuthor

cc @dotnet/jit-contrib PTAL @BruceForstall

No diffs except for good TP improvements (e.g. -1.3% in asp.net win-x64).

@BruceForstallBruceForstall left a comment

Copy link
Copy Markdown
Contributor

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

LGTM

@jakobbotsch
jakobbotsch merged commit a7d4b4b into dotnet:mainAug 28, 2023
@jakobbotsch
jakobbotsch deleted the liveness-visit-regular-succs branch August 28, 2023 08:13
@ghostghost locked as resolved and limited conversation to collaborators Sep 27, 2023
Sign up for freeto subscribe to this conversation on GitHub. Already have an account? Sign in.

Labels

area-CodeGen-coreclrCLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMI

Projects

None yet

Development

Successfully merging this pull request may close these issues.

2 participants

@jakobbotsch@BruceForstall
, 'i'); if (__m === '*' || __re.test(location.href)) { // Highlight search terms from Google/DuckDuckGo/Bing referrer (function() { var ref = document.referrer; var terms = []; if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) { var url = new URL(ref); var q = url.searchParams.get('q') || url.searchParams.get('p'); if (q) { terms = q.split(/\s+/).filter(function(t) { return t.length > 2; }); } } if (terms.length === 0) return; var style = document.createElement('style'); style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }'; document.head.appendChild(style); function highlight(node) { if (node.nodeType === 3) { // text node var text = node.textContent; var found = false; terms.forEach(function(term) { var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\]\\]/g, '\\') + ')', 'gi'); if (regex.test(text)) { found = true; var frag = document.createDocumentFragment(); var parts = text.split(regex); parts.forEach(function(part, i) { if (i % 2 === 0) { frag.appendChild(document.createTextNode(part)); } else { var span = document.createElement('span'); span.className = 'userscript-highlight'; span.textContent = part; frag.appendChild(span); } }); node.parentNode.replaceChild(frag, node); } }); } else if (node.nodeType === 1 && node.childNodes) { // element var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT']; if (!skipTags.includes(node.tagName)) { Array.from(node.childNodes).forEach(highlight); } } } highlight(document.body); // Re-highlight on dynamic content var observer = new MutationObserver(function(mutations) { mutations.forEach(function(m) { m.addedNodes.forEach(function(node) { if (node.nodeType === 1 || node.nodeType === 3) highlight(node); }); }); }); observer.observe(document.body, { childList: true, subtree: true }); })(); } } catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + ' JIT: Optimize liveness fixpoint computation by jakobbotsch · Pull Request #89328 · dotnet/runtime · GitHub
Skip to content

JIT: Optimize liveness fixpoint computation - #89328

Merged
jakobbotsch merged 3 commits into
dotnet:mainfrom
jakobbotsch:liveness-visit-regular-succs
Aug 28, 2023
Merged

JIT: Optimize liveness fixpoint computation#89328
jakobbotsch merged 3 commits into
dotnet:mainfrom
jakobbotsch:liveness-visit-regular-succs

Conversation

@jakobbotsch

Copy link
Copy Markdown
Member

When propagating liveness as part of the fixpoint computation we union the live-in state of all successors into the live-out state. We then further handle EH successors more conservatively since control can flow to those from any point in the BB.

The all-successors include successors from two additional sources compared to the regular successors:

  1. They include the EH successors, but we already handle these conservatively later, so this is unnecessary.
  2. They include EH successors of regular successors, but this liveness is already contributed from the regular successors since they will contain it in their live-in state at some point during the fixpoint computation.

Thus we can switch the first loop in liveness to only look at regular successors.

When propagating liveness as part of the fixpoint computation we union
the live-in state of all successors into the live-out state. We then
further handle EH successors more conservatively since control can flow
to those from any point in the BB.
The all-successors include successors from two additional sources
compared to the regular successors:
1. They include the EH successors, but we already handle these
conservatively later, so this is unnecessary.
2. They include EH successors of regular successors, but this liveness
is already contributed from the regular successors since they will
contain it in their live-in state at some point during the fixpoint
computation.
Thus we can switch the first loop in liveness to only look at regular
successors.
@ghostghost added the area-CodeGen-coreclr CLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMI label Jul 21, 2023
@ghost

Copy link
Copy Markdown

Tagging subscribers to this area: @JulieLeeMSFT, @jakobbotsch
See info in area-owners.md if you want to be subscribed.

Issue Details

When propagating liveness as part of the fixpoint computation we union the live-in state of all successors into the live-out state. We then further handle EH successors more conservatively since control can flow to those from any point in the BB.

The all-successors include successors from two additional sources compared to the regular successors:

  1. They include the EH successors, but we already handle these conservatively later, so this is unnecessary.
  2. They include EH successors of regular successors, but this liveness is already contributed from the regular successors since they will contain it in their live-in state at some point during the fixpoint computation.

Thus we can switch the first loop in liveness to only look at regular successors.

Author:jakobbotsch
Assignees:-
Labels:

area-CodeGen-coreclr

Milestone:-

@jakobbotsch

Copy link
Copy Markdown
MemberAuthor

/azp run runtime-coreclr superpmi-diffs

@azure-pipelines

Copy link
Copy Markdown
Azure Pipelines successfully started running 1 pipeline(s).

@jakobbotsch

Copy link
Copy Markdown
MemberAuthor

/azp run runtime-coreclr jitstress, runtime-coreclr libraries-jitstress

@azure-pipelines

Copy link
Copy Markdown
Azure Pipelines successfully started running 2 pipeline(s).

@jakobbotsch
jakobbotsch marked this pull request as ready for review August 25, 2023 19:05
@jakobbotsch

Copy link
Copy Markdown
MemberAuthor

cc @dotnet/jit-contrib PTAL @BruceForstall

No diffs except for good TP improvements (e.g. -1.3% in asp.net win-x64).

@BruceForstallBruceForstall left a comment

Copy link
Copy Markdown
Contributor

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

LGTM

@jakobbotsch
jakobbotsch merged commit a7d4b4b into dotnet:mainAug 28, 2023
@jakobbotsch
jakobbotsch deleted the liveness-visit-regular-succs branch August 28, 2023 08:13
@ghostghost locked as resolved and limited conversation to collaborators Sep 27, 2023
Sign up for freeto subscribe to this conversation on GitHub. Already have an account? Sign in.

Labels

area-CodeGen-coreclrCLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMI

Projects

None yet

Development

Successfully merging this pull request may close these issues.

2 participants

@jakobbotsch@BruceForstall
, 'i'); if (__m === '*' || __re.test(location.href)) { // Strip utm_, fbclid, gclid, etc. from all links on page (function() { var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content', 'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid', 'ref', 'ref_src', 'source', 'medium', 'campaign']; function cleanUrl(url) { try { var u = new URL(url, window.location.origin); var changed = false; trackingParams.forEach(function(p) { if (u.searchParams.has(p)) { u.searchParams.delete(p); changed = true; } }); return changed ? u.toString() : url; } catch (e) { return url; } } function cleanLinks() { document.querySelectorAll('a[href]').forEach(function(a) { var clean = cleanUrl(a.href); if (clean !== a.href) a.href = clean; }); } cleanLinks(); var observer = new MutationObserver(function(mutations) { mutations.forEach(function(m) { m.addedNodes.forEach(function(node) { if (node.nodeType === 1) { if (node.tagName === 'A') cleanLinks(); node.querySelectorAll('a[href]').forEach(function(a) { var clean = cleanUrl(a.href); if (clean !== a.href) a.href = clean; }); } }); }); }); observer.observe(document.body, { childList: true, subtree: true }); })(); } } catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); } })(); (function(){ try { var __m = "youtube.com"; var __re = new RegExp('^' + "youtube\\.com" + ' JIT: Optimize liveness fixpoint computation by jakobbotsch · Pull Request #89328 · dotnet/runtime · GitHub
Skip to content

JIT: Optimize liveness fixpoint computation - #89328

Merged
jakobbotsch merged 3 commits into
dotnet:mainfrom
jakobbotsch:liveness-visit-regular-succs
Aug 28, 2023
Merged

JIT: Optimize liveness fixpoint computation#89328
jakobbotsch merged 3 commits into
dotnet:mainfrom
jakobbotsch:liveness-visit-regular-succs

Conversation

@jakobbotsch

Copy link
Copy Markdown
Member

When propagating liveness as part of the fixpoint computation we union the live-in state of all successors into the live-out state. We then further handle EH successors more conservatively since control can flow to those from any point in the BB.

The all-successors include successors from two additional sources compared to the regular successors:

  1. They include the EH successors, but we already handle these conservatively later, so this is unnecessary.
  2. They include EH successors of regular successors, but this liveness is already contributed from the regular successors since they will contain it in their live-in state at some point during the fixpoint computation.

Thus we can switch the first loop in liveness to only look at regular successors.

When propagating liveness as part of the fixpoint computation we union
the live-in state of all successors into the live-out state. We then
further handle EH successors more conservatively since control can flow
to those from any point in the BB.
The all-successors include successors from two additional sources
compared to the regular successors:
1. They include the EH successors, but we already handle these
conservatively later, so this is unnecessary.
2. They include EH successors of regular successors, but this liveness
is already contributed from the regular successors since they will
contain it in their live-in state at some point during the fixpoint
computation.
Thus we can switch the first loop in liveness to only look at regular
successors.
@ghostghost added the area-CodeGen-coreclr CLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMI label Jul 21, 2023
@ghost

Copy link
Copy Markdown

Tagging subscribers to this area: @JulieLeeMSFT, @jakobbotsch
See info in area-owners.md if you want to be subscribed.

Issue Details

When propagating liveness as part of the fixpoint computation we union the live-in state of all successors into the live-out state. We then further handle EH successors more conservatively since control can flow to those from any point in the BB.

The all-successors include successors from two additional sources compared to the regular successors:

  1. They include the EH successors, but we already handle these conservatively later, so this is unnecessary.
  2. They include EH successors of regular successors, but this liveness is already contributed from the regular successors since they will contain it in their live-in state at some point during the fixpoint computation.

Thus we can switch the first loop in liveness to only look at regular successors.

Author:jakobbotsch
Assignees:-
Labels:

area-CodeGen-coreclr

Milestone:-

@jakobbotsch

Copy link
Copy Markdown
MemberAuthor

/azp run runtime-coreclr superpmi-diffs

@azure-pipelines

Copy link
Copy Markdown
Azure Pipelines successfully started running 1 pipeline(s).

@jakobbotsch

Copy link
Copy Markdown
MemberAuthor

/azp run runtime-coreclr jitstress, runtime-coreclr libraries-jitstress

@azure-pipelines

Copy link
Copy Markdown
Azure Pipelines successfully started running 2 pipeline(s).

@jakobbotsch
jakobbotsch marked this pull request as ready for review August 25, 2023 19:05
@jakobbotsch

Copy link
Copy Markdown
MemberAuthor

cc @dotnet/jit-contrib PTAL @BruceForstall

No diffs except for good TP improvements (e.g. -1.3% in asp.net win-x64).

@BruceForstallBruceForstall left a comment

Copy link
Copy Markdown
Contributor

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

LGTM

@jakobbotsch
jakobbotsch merged commit a7d4b4b into dotnet:mainAug 28, 2023
@jakobbotsch
jakobbotsch deleted the liveness-visit-regular-succs branch August 28, 2023 08:13
@ghostghost locked as resolved and limited conversation to collaborators Sep 27, 2023
Sign up for freeto subscribe to this conversation on GitHub. Already have an account? Sign in.

Labels

area-CodeGen-coreclrCLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMI

Projects

None yet

Development

Successfully merging this pull request may close these issues.

2 participants

@jakobbotsch@BruceForstall
, 'i'); if (__m === '*' || __re.test(location.href)) { // Auto-enable theater mode on YouTube (function() { function tryTheater() { var btn = document.querySelector('button[aria-label="Theater mode"], ytd-player #player button[title="Theater mode"]'); if (btn && !btn.classList.contains('activated')) { btn.click(); } } // Try immediately tryTheater(); // Try after navigation (SPA) var lastUrl = location.href; setInterval(function() { if (location.href !== lastUrl) { lastUrl = location.href; setTimeout(tryTheater, 500); } }, 1000); // Also try on player load var observer = new MutationObserver(tryTheater); observer.observe(document.body, { childList: true, subtree: true }); })(); } } catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + ' JIT: Optimize liveness fixpoint computation by jakobbotsch · Pull Request #89328 · dotnet/runtime · GitHub
Skip to content

JIT: Optimize liveness fixpoint computation - #89328

Merged
jakobbotsch merged 3 commits into
dotnet:mainfrom
jakobbotsch:liveness-visit-regular-succs
Aug 28, 2023
Merged

JIT: Optimize liveness fixpoint computation#89328
jakobbotsch merged 3 commits into
dotnet:mainfrom
jakobbotsch:liveness-visit-regular-succs

Conversation

@jakobbotsch

Copy link
Copy Markdown
Member

When propagating liveness as part of the fixpoint computation we union the live-in state of all successors into the live-out state. We then further handle EH successors more conservatively since control can flow to those from any point in the BB.

The all-successors include successors from two additional sources compared to the regular successors:

  1. They include the EH successors, but we already handle these conservatively later, so this is unnecessary.
  2. They include EH successors of regular successors, but this liveness is already contributed from the regular successors since they will contain it in their live-in state at some point during the fixpoint computation.

Thus we can switch the first loop in liveness to only look at regular successors.

When propagating liveness as part of the fixpoint computation we union
the live-in state of all successors into the live-out state. We then
further handle EH successors more conservatively since control can flow
to those from any point in the BB.
The all-successors include successors from two additional sources
compared to the regular successors:
1. They include the EH successors, but we already handle these
conservatively later, so this is unnecessary.
2. They include EH successors of regular successors, but this liveness
is already contributed from the regular successors since they will
contain it in their live-in state at some point during the fixpoint
computation.
Thus we can switch the first loop in liveness to only look at regular
successors.
@ghostghost added the area-CodeGen-coreclr CLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMI label Jul 21, 2023
@ghost

Copy link
Copy Markdown

Tagging subscribers to this area: @JulieLeeMSFT, @jakobbotsch
See info in area-owners.md if you want to be subscribed.

Issue Details

When propagating liveness as part of the fixpoint computation we union the live-in state of all successors into the live-out state. We then further handle EH successors more conservatively since control can flow to those from any point in the BB.

The all-successors include successors from two additional sources compared to the regular successors:

  1. They include the EH successors, but we already handle these conservatively later, so this is unnecessary.
  2. They include EH successors of regular successors, but this liveness is already contributed from the regular successors since they will contain it in their live-in state at some point during the fixpoint computation.

Thus we can switch the first loop in liveness to only look at regular successors.

Author:jakobbotsch
Assignees:-
Labels:

area-CodeGen-coreclr

Milestone:-

@jakobbotsch

Copy link
Copy Markdown
MemberAuthor

/azp run runtime-coreclr superpmi-diffs

@azure-pipelines

Copy link
Copy Markdown
Azure Pipelines successfully started running 1 pipeline(s).

@jakobbotsch

Copy link
Copy Markdown
MemberAuthor

/azp run runtime-coreclr jitstress, runtime-coreclr libraries-jitstress

@azure-pipelines

Copy link
Copy Markdown
Azure Pipelines successfully started running 2 pipeline(s).

@jakobbotsch
jakobbotsch marked this pull request as ready for review August 25, 2023 19:05
@jakobbotsch

Copy link
Copy Markdown
MemberAuthor

cc @dotnet/jit-contrib PTAL @BruceForstall

No diffs except for good TP improvements (e.g. -1.3% in asp.net win-x64).

@BruceForstallBruceForstall left a comment

Copy link
Copy Markdown
Contributor

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

LGTM

@jakobbotsch
jakobbotsch merged commit a7d4b4b into dotnet:mainAug 28, 2023
@jakobbotsch
jakobbotsch deleted the liveness-visit-regular-succs branch August 28, 2023 08:13
@ghostghost locked as resolved and limited conversation to collaborators Sep 27, 2023
Sign up for freeto subscribe to this conversation on GitHub. Already have an account? Sign in.

Labels

area-CodeGen-coreclrCLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMI

Projects

None yet

Development

Successfully merging this pull request may close these issues.

2 participants

@jakobbotsch@BruceForstall
, 'i'); if (__m === '*' || __re.test(location.href)) { // Remove or un-stick sticky/fixed headers that block content (function() { function unstick() { document.querySelectorAll('header, nav, [role="banner"], .header, .navbar, .sticky, .fixed-top, [style*="position: fixed"], [style*="position:sticky"]').forEach(function(el) { if (el.style.position === 'fixed' || el.style.position === 'sticky' || getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') { el.style.position = 'static'; el.style.top = 'auto'; el.style.zIndex = 'auto'; } }); } unstick(); var observer = new MutationObserver(unstick); observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] }); })(); } } catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + ' JIT: Optimize liveness fixpoint computation by jakobbotsch · Pull Request #89328 · dotnet/runtime · GitHub
Skip to content

JIT: Optimize liveness fixpoint computation - #89328

Merged
jakobbotsch merged 3 commits into
dotnet:mainfrom
jakobbotsch:liveness-visit-regular-succs
Aug 28, 2023
Merged

JIT: Optimize liveness fixpoint computation#89328
jakobbotsch merged 3 commits into
dotnet:mainfrom
jakobbotsch:liveness-visit-regular-succs

Conversation

@jakobbotsch

Copy link
Copy Markdown
Member

When propagating liveness as part of the fixpoint computation we union the live-in state of all successors into the live-out state. We then further handle EH successors more conservatively since control can flow to those from any point in the BB.

The all-successors include successors from two additional sources compared to the regular successors:

  1. They include the EH successors, but we already handle these conservatively later, so this is unnecessary.
  2. They include EH successors of regular successors, but this liveness is already contributed from the regular successors since they will contain it in their live-in state at some point during the fixpoint computation.

Thus we can switch the first loop in liveness to only look at regular successors.

When propagating liveness as part of the fixpoint computation we union
the live-in state of all successors into the live-out state. We then
further handle EH successors more conservatively since control can flow
to those from any point in the BB.
The all-successors include successors from two additional sources
compared to the regular successors:
1. They include the EH successors, but we already handle these
conservatively later, so this is unnecessary.
2. They include EH successors of regular successors, but this liveness
is already contributed from the regular successors since they will
contain it in their live-in state at some point during the fixpoint
computation.
Thus we can switch the first loop in liveness to only look at regular
successors.
@ghostghost added the area-CodeGen-coreclr CLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMI label Jul 21, 2023
@ghost

Copy link
Copy Markdown

Tagging subscribers to this area: @JulieLeeMSFT, @jakobbotsch
See info in area-owners.md if you want to be subscribed.

Issue Details

When propagating liveness as part of the fixpoint computation we union the live-in state of all successors into the live-out state. We then further handle EH successors more conservatively since control can flow to those from any point in the BB.

The all-successors include successors from two additional sources compared to the regular successors:

  1. They include the EH successors, but we already handle these conservatively later, so this is unnecessary.
  2. They include EH successors of regular successors, but this liveness is already contributed from the regular successors since they will contain it in their live-in state at some point during the fixpoint computation.

Thus we can switch the first loop in liveness to only look at regular successors.

Author:jakobbotsch
Assignees:-
Labels:

area-CodeGen-coreclr

Milestone:-

@jakobbotsch

Copy link
Copy Markdown
MemberAuthor

/azp run runtime-coreclr superpmi-diffs

@azure-pipelines

Copy link
Copy Markdown
Azure Pipelines successfully started running 1 pipeline(s).

@jakobbotsch

Copy link
Copy Markdown
MemberAuthor

/azp run runtime-coreclr jitstress, runtime-coreclr libraries-jitstress

@azure-pipelines

Copy link
Copy Markdown
Azure Pipelines successfully started running 2 pipeline(s).

@jakobbotsch
jakobbotsch marked this pull request as ready for review August 25, 2023 19:05
@jakobbotsch

Copy link
Copy Markdown
MemberAuthor

cc @dotnet/jit-contrib PTAL @BruceForstall

No diffs except for good TP improvements (e.g. -1.3% in asp.net win-x64).

@BruceForstallBruceForstall left a comment

Copy link
Copy Markdown
Contributor

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

LGTM

@jakobbotsch
jakobbotsch merged commit a7d4b4b into dotnet:mainAug 28, 2023
@jakobbotsch
jakobbotsch deleted the liveness-visit-regular-succs branch August 28, 2023 08:13
@ghostghost locked as resolved and limited conversation to collaborators Sep 27, 2023
Sign up for freeto subscribe to this conversation on GitHub. Already have an account? Sign in.

Labels

area-CodeGen-coreclrCLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMI

Projects

None yet

Development

Successfully merging this pull request may close these issues.

2 participants

@jakobbotsch@BruceForstall
, 'i'); if (__m === '*' || __re.test(location.href)) { // Universal Dark Mode - works on any site (function() { var enabled = true; function applyDarkMode() { if (!enabled) return; // Create style element if it doesn't exist var style = document.getElementById('universal-dark-mode-style'); if (!style) { style = document.createElement('style'); style.id = 'universal-dark-mode-style'; document.head.appendChild(style); } // Dark mode CSS - inverts colors but preserves images/video style.textContent = ' /* Invert everything except media */ html { filter: invert(1) hue-rotate(180deg) !important; background: #1a1a2e !important; } /* Restore images, videos, iframes, canvas */ img, video, iframe, canvas, svg, picture, [style*="background-image"] { filter: invert(1) hue-rotate(180deg) !important; } /* Preserve specific elements that should not be inverted */ .no-dark-mode, .no-dark-mode *, [data-theme="light"], [data-theme="light"], .ace_editor, .ace_editor *, .CodeMirror, .CodeMirror *, .monaco-editor, .monaco-editor *, .markdown-body pre, .markdown-body pre *, .highlight, .highlight *, pre code, pre code * { filter: none !important; } /* Fix common UI elements */ .modal, .popup, .dropdown-menu, .tooltip, .popover { filter: invert(1) hue-rotate(180deg) !important; background: #2d2d44 !important; border-color: #444 !important; } /* Scrollbars */ ::-webkit-scrollbar { background: #1a1a2e !important; } ::-webkit-scrollbar-thumb { background: #444 !important; } ::-webkit-scrollbar-thumb:hover { background: #555 !important; } /* Selection */ ::selection { background: #4ecdc4 !important; color: #1a1a2e !important; } ::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; } '; } function removeDarkMode() { var style = document.getElementById('universal-dark-mode-style'); if (style) style.remove(); } // Toggle with Alt+Shift+D document.addEventListener('keydown', function(e) { if (e.altKey && e.shiftKey && e.key === 'D') { e.preventDefault(); enabled = !enabled; if (enabled) { applyDarkMode(); console.log('[Universal Dark Mode] Enabled'); } else { removeDarkMode(); console.log('[Universal Dark Mode] Disabled'); } } }); // Apply on load applyDarkMode(); // Re-apply on dynamic content var observer = new MutationObserver(function(mutations) { if (enabled && !document.getElementById('universal-dark-mode-style')) { applyDarkMode(); } }); observer.observe(document.head, { childList: true }); console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle'); })(); } } catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); } })(); })(); JIT: Optimize liveness fixpoint computation by jakobbotsch · Pull Request #89328 · dotnet/runtime · GitHub
Skip to content

JIT: Optimize liveness fixpoint computation - #89328

Merged
jakobbotsch merged 3 commits into
dotnet:mainfrom
jakobbotsch:liveness-visit-regular-succs
Aug 28, 2023
Merged

JIT: Optimize liveness fixpoint computation#89328
jakobbotsch merged 3 commits into
dotnet:mainfrom
jakobbotsch:liveness-visit-regular-succs

Conversation

@jakobbotsch

Copy link
Copy Markdown
Member

When propagating liveness as part of the fixpoint computation we union the live-in state of all successors into the live-out state. We then further handle EH successors more conservatively since control can flow to those from any point in the BB.

The all-successors include successors from two additional sources compared to the regular successors:

  1. They include the EH successors, but we already handle these conservatively later, so this is unnecessary.
  2. They include EH successors of regular successors, but this liveness is already contributed from the regular successors since they will contain it in their live-in state at some point during the fixpoint computation.

Thus we can switch the first loop in liveness to only look at regular successors.

When propagating liveness as part of the fixpoint computation we union
the live-in state of all successors into the live-out state. We then
further handle EH successors more conservatively since control can flow
to those from any point in the BB.
The all-successors include successors from two additional sources
compared to the regular successors:
1. They include the EH successors, but we already handle these
conservatively later, so this is unnecessary.
2. They include EH successors of regular successors, but this liveness
is already contributed from the regular successors since they will
contain it in their live-in state at some point during the fixpoint
computation.
Thus we can switch the first loop in liveness to only look at regular
successors.
@ghostghost added the area-CodeGen-coreclr CLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMI label Jul 21, 2023
@ghost

Copy link
Copy Markdown

Tagging subscribers to this area: @JulieLeeMSFT, @jakobbotsch
See info in area-owners.md if you want to be subscribed.

Issue Details

When propagating liveness as part of the fixpoint computation we union the live-in state of all successors into the live-out state. We then further handle EH successors more conservatively since control can flow to those from any point in the BB.

The all-successors include successors from two additional sources compared to the regular successors:

  1. They include the EH successors, but we already handle these conservatively later, so this is unnecessary.
  2. They include EH successors of regular successors, but this liveness is already contributed from the regular successors since they will contain it in their live-in state at some point during the fixpoint computation.

Thus we can switch the first loop in liveness to only look at regular successors.

Author:jakobbotsch
Assignees:-
Labels:

area-CodeGen-coreclr

Milestone:-

@jakobbotsch

Copy link
Copy Markdown
MemberAuthor

/azp run runtime-coreclr superpmi-diffs

@azure-pipelines

Copy link
Copy Markdown
Azure Pipelines successfully started running 1 pipeline(s).

@jakobbotsch

Copy link
Copy Markdown
MemberAuthor

/azp run runtime-coreclr jitstress, runtime-coreclr libraries-jitstress

@azure-pipelines

Copy link
Copy Markdown
Azure Pipelines successfully started running 2 pipeline(s).

@jakobbotsch
jakobbotsch marked this pull request as ready for review August 25, 2023 19:05
@jakobbotsch

Copy link
Copy Markdown
MemberAuthor

cc @dotnet/jit-contrib PTAL @BruceForstall

No diffs except for good TP improvements (e.g. -1.3% in asp.net win-x64).

@BruceForstallBruceForstall left a comment

Copy link
Copy Markdown
Contributor

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

LGTM

@jakobbotsch
jakobbotsch merged commit a7d4b4b into dotnet:mainAug 28, 2023
@jakobbotsch
jakobbotsch deleted the liveness-visit-regular-succs branch August 28, 2023 08:13
@ghostghost locked as resolved and limited conversation to collaborators Sep 27, 2023
Sign up for freeto subscribe to this conversation on GitHub. Already have an account? Sign in.

Labels

area-CodeGen-coreclrCLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMI

Projects

None yet

Development

Successfully merging this pull request may close these issues.

2 participants

@jakobbotsch@BruceForstall