Skip to content

JIT: Avoid unnecessary argument spills in indirect call transformer - #131754

Merged
jakobbotsch merged 2 commits into
dotnet:mainfrom
jakobbotsch:fix-131665
Aug 4, 2026
Merged

JIT: Avoid unnecessary argument spills in indirect call transformer#131754
jakobbotsch merged 2 commits into
dotnet:mainfrom
jakobbotsch:fix-131665

Conversation

@jakobbotsch

Copy link
Copy Markdown
Member

CopilotAI review requested due to automatic review settings August 3, 2026 16:01
@github-actionsgithub-actionsBot added the area-CodeGen-coreclr CLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMI label Aug 3, 2026
@azure-pipelines

Copy link
Copy Markdown
Azure Pipelines:
Successfully started running 5 pipeline(s).
11 pipeline(s) were filtered out due to trigger conditions.
There may be pipelines that require an authorized user to comment /azp run to run.

@dotnet-policy-service

Copy link
Copy Markdown
Contributor

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

CopilotAI 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.

Pull request overview

This PR updates the CoreCLR JIT’s indirect call transformation logic to avoid spilling invariant call arguments (constants, GT_LCL_ADDR, GT_FTN_ADDR) into temporaries when splitting calls for guarded transforms. This prevents certain arguments (notably GT_LCL_ADDR) from being rewritten into GT_LCL_VAR temps, aligning with downstream shape expectations and avoiding the reported assert.

Changes:

  • In IndirectCallTransformer::Transformer::SplitCall, only spill “effectful / addr-exposed” uses when the use is notGenTree::IsInvariant().

@azure-pipelines

Copy link
Copy Markdown
Azure Pipelines:
Successfully started running 5 pipeline(s).
11 pipeline(s) were filtered out due to trigger conditions.
There may be pipelines that require an authorized user to comment /azp run to run.

@jakobbotsch

Copy link
Copy Markdown
MemberAuthor

cc @dotnet/jit-contrib PTAL @AndyAyersMS

This was spilling the LCL_ADDR that represents the indicator definition.

CopilotAI review requested due to automatic review settings August 4, 2026 13:25

CopilotAI 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.

Pull request overview

Copilot reviewed 1 out of 1 changed files in this pull request and generated no new comments.

@JulieLeeMSFTJulieLeeMSFT left a comment

Copy link
Copy Markdown
Member

Choose a reason for hiding this comment

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

LGTM.

@jakobbotsch

Copy link
Copy Markdown
MemberAuthor

/ba-g Timeouts

@jakobbotsch
jakobbotsch merged commit f107b23 into dotnet:mainAug 4, 2026
130 of 136 checks passed
@jakobbotsch
jakobbotsch deleted the fix-131665 branch August 4, 2026 20:53
@dotnet-milestone-botdotnet-milestone-botBot added this to the 11.0-rc1 milestone Aug 5, 2026
Sign up for freeto join this conversation on GitHub. Already have an account? Sign in to comment

Labels

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

Projects

None yet

4 participants

@jakobbotsch@AndyAyersMS@JulieLeeMSFT
, '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: Avoid unnecessary argument spills in indirect call transformer by jakobbotsch · Pull Request #131754 · dotnet/runtime · GitHub
Skip to content

JIT: Avoid unnecessary argument spills in indirect call transformer - #131754

Merged
jakobbotsch merged 2 commits into
dotnet:mainfrom
jakobbotsch:fix-131665
Aug 4, 2026
Merged

JIT: Avoid unnecessary argument spills in indirect call transformer#131754
jakobbotsch merged 2 commits into
dotnet:mainfrom
jakobbotsch:fix-131665

Conversation

@jakobbotsch

Copy link
Copy Markdown
Member

CopilotAI review requested due to automatic review settings August 3, 2026 16:01
@github-actionsgithub-actionsBot added the area-CodeGen-coreclr CLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMI label Aug 3, 2026
@azure-pipelines

Copy link
Copy Markdown
Azure Pipelines:
Successfully started running 5 pipeline(s).
11 pipeline(s) were filtered out due to trigger conditions.
There may be pipelines that require an authorized user to comment /azp run to run.

@dotnet-policy-service

Copy link
Copy Markdown
Contributor

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

CopilotAI 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.

Pull request overview

This PR updates the CoreCLR JIT’s indirect call transformation logic to avoid spilling invariant call arguments (constants, GT_LCL_ADDR, GT_FTN_ADDR) into temporaries when splitting calls for guarded transforms. This prevents certain arguments (notably GT_LCL_ADDR) from being rewritten into GT_LCL_VAR temps, aligning with downstream shape expectations and avoiding the reported assert.

Changes:

  • In IndirectCallTransformer::Transformer::SplitCall, only spill “effectful / addr-exposed” uses when the use is notGenTree::IsInvariant().

@azure-pipelines

Copy link
Copy Markdown
Azure Pipelines:
Successfully started running 5 pipeline(s).
11 pipeline(s) were filtered out due to trigger conditions.
There may be pipelines that require an authorized user to comment /azp run to run.

@jakobbotsch

Copy link
Copy Markdown
MemberAuthor

cc @dotnet/jit-contrib PTAL @AndyAyersMS

This was spilling the LCL_ADDR that represents the indicator definition.

CopilotAI review requested due to automatic review settings August 4, 2026 13:25

CopilotAI 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.

Pull request overview

Copilot reviewed 1 out of 1 changed files in this pull request and generated no new comments.

@JulieLeeMSFTJulieLeeMSFT left a comment

Copy link
Copy Markdown
Member

Choose a reason for hiding this comment

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

LGTM.

@jakobbotsch

Copy link
Copy Markdown
MemberAuthor

/ba-g Timeouts

@jakobbotsch
jakobbotsch merged commit f107b23 into dotnet:mainAug 4, 2026
130 of 136 checks passed
@jakobbotsch
jakobbotsch deleted the fix-131665 branch August 4, 2026 20:53
@dotnet-milestone-botdotnet-milestone-botBot added this to the 11.0-rc1 milestone Aug 5, 2026
Sign up for freeto join this conversation on GitHub. Already have an account? Sign in to comment

Labels

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

Projects

None yet

4 participants

@jakobbotsch@AndyAyersMS@JulieLeeMSFT
, '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: Avoid unnecessary argument spills in indirect call transformer by jakobbotsch · Pull Request #131754 · dotnet/runtime · GitHub
Skip to content

JIT: Avoid unnecessary argument spills in indirect call transformer - #131754

Merged
jakobbotsch merged 2 commits into
dotnet:mainfrom
jakobbotsch:fix-131665
Aug 4, 2026
Merged

JIT: Avoid unnecessary argument spills in indirect call transformer#131754
jakobbotsch merged 2 commits into
dotnet:mainfrom
jakobbotsch:fix-131665

Conversation

@jakobbotsch

Copy link
Copy Markdown
Member

CopilotAI review requested due to automatic review settings August 3, 2026 16:01
@github-actionsgithub-actionsBot added the area-CodeGen-coreclr CLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMI label Aug 3, 2026
@azure-pipelines

Copy link
Copy Markdown
Azure Pipelines:
Successfully started running 5 pipeline(s).
11 pipeline(s) were filtered out due to trigger conditions.
There may be pipelines that require an authorized user to comment /azp run to run.

@dotnet-policy-service

Copy link
Copy Markdown
Contributor

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

CopilotAI 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.

Pull request overview

This PR updates the CoreCLR JIT’s indirect call transformation logic to avoid spilling invariant call arguments (constants, GT_LCL_ADDR, GT_FTN_ADDR) into temporaries when splitting calls for guarded transforms. This prevents certain arguments (notably GT_LCL_ADDR) from being rewritten into GT_LCL_VAR temps, aligning with downstream shape expectations and avoiding the reported assert.

Changes:

  • In IndirectCallTransformer::Transformer::SplitCall, only spill “effectful / addr-exposed” uses when the use is notGenTree::IsInvariant().

@azure-pipelines

Copy link
Copy Markdown
Azure Pipelines:
Successfully started running 5 pipeline(s).
11 pipeline(s) were filtered out due to trigger conditions.
There may be pipelines that require an authorized user to comment /azp run to run.

@jakobbotsch

Copy link
Copy Markdown
MemberAuthor

cc @dotnet/jit-contrib PTAL @AndyAyersMS

This was spilling the LCL_ADDR that represents the indicator definition.

CopilotAI review requested due to automatic review settings August 4, 2026 13:25

CopilotAI 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.

Pull request overview

Copilot reviewed 1 out of 1 changed files in this pull request and generated no new comments.

@JulieLeeMSFTJulieLeeMSFT left a comment

Copy link
Copy Markdown
Member

Choose a reason for hiding this comment

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

LGTM.

@jakobbotsch

Copy link
Copy Markdown
MemberAuthor

/ba-g Timeouts

@jakobbotsch
jakobbotsch merged commit f107b23 into dotnet:mainAug 4, 2026
130 of 136 checks passed
@jakobbotsch
jakobbotsch deleted the fix-131665 branch August 4, 2026 20:53
@dotnet-milestone-botdotnet-milestone-botBot added this to the 11.0-rc1 milestone Aug 5, 2026
Sign up for freeto join this conversation on GitHub. Already have an account? Sign in to comment

Labels

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

Projects

None yet

4 participants

@jakobbotsch@AndyAyersMS@JulieLeeMSFT
, '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: Avoid unnecessary argument spills in indirect call transformer by jakobbotsch · Pull Request #131754 · dotnet/runtime · GitHub
Skip to content

JIT: Avoid unnecessary argument spills in indirect call transformer - #131754

Merged
jakobbotsch merged 2 commits into
dotnet:mainfrom
jakobbotsch:fix-131665
Aug 4, 2026
Merged

JIT: Avoid unnecessary argument spills in indirect call transformer#131754
jakobbotsch merged 2 commits into
dotnet:mainfrom
jakobbotsch:fix-131665

Conversation

@jakobbotsch

Copy link
Copy Markdown
Member

CopilotAI review requested due to automatic review settings August 3, 2026 16:01
@github-actionsgithub-actionsBot added the area-CodeGen-coreclr CLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMI label Aug 3, 2026
@azure-pipelines

Copy link
Copy Markdown
Azure Pipelines:
Successfully started running 5 pipeline(s).
11 pipeline(s) were filtered out due to trigger conditions.
There may be pipelines that require an authorized user to comment /azp run to run.

@dotnet-policy-service

Copy link
Copy Markdown
Contributor

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

CopilotAI 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.

Pull request overview

This PR updates the CoreCLR JIT’s indirect call transformation logic to avoid spilling invariant call arguments (constants, GT_LCL_ADDR, GT_FTN_ADDR) into temporaries when splitting calls for guarded transforms. This prevents certain arguments (notably GT_LCL_ADDR) from being rewritten into GT_LCL_VAR temps, aligning with downstream shape expectations and avoiding the reported assert.

Changes:

  • In IndirectCallTransformer::Transformer::SplitCall, only spill “effectful / addr-exposed” uses when the use is notGenTree::IsInvariant().

@azure-pipelines

Copy link
Copy Markdown
Azure Pipelines:
Successfully started running 5 pipeline(s).
11 pipeline(s) were filtered out due to trigger conditions.
There may be pipelines that require an authorized user to comment /azp run to run.

@jakobbotsch

Copy link
Copy Markdown
MemberAuthor

cc @dotnet/jit-contrib PTAL @AndyAyersMS

This was spilling the LCL_ADDR that represents the indicator definition.

CopilotAI review requested due to automatic review settings August 4, 2026 13:25

CopilotAI 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.

Pull request overview

Copilot reviewed 1 out of 1 changed files in this pull request and generated no new comments.

@JulieLeeMSFTJulieLeeMSFT left a comment

Copy link
Copy Markdown
Member

Choose a reason for hiding this comment

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

LGTM.

@jakobbotsch

Copy link
Copy Markdown
MemberAuthor

/ba-g Timeouts

@jakobbotsch
jakobbotsch merged commit f107b23 into dotnet:mainAug 4, 2026
130 of 136 checks passed
@jakobbotsch
jakobbotsch deleted the fix-131665 branch August 4, 2026 20:53
@dotnet-milestone-botdotnet-milestone-botBot added this to the 11.0-rc1 milestone Aug 5, 2026
Sign up for freeto join this conversation on GitHub. Already have an account? Sign in to comment

Labels

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

Projects

None yet

4 participants

@jakobbotsch@AndyAyersMS@JulieLeeMSFT
, '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: Avoid unnecessary argument spills in indirect call transformer by jakobbotsch · Pull Request #131754 · dotnet/runtime · GitHub
Skip to content

JIT: Avoid unnecessary argument spills in indirect call transformer - #131754

Merged
jakobbotsch merged 2 commits into
dotnet:mainfrom
jakobbotsch:fix-131665
Aug 4, 2026
Merged

JIT: Avoid unnecessary argument spills in indirect call transformer#131754
jakobbotsch merged 2 commits into
dotnet:mainfrom
jakobbotsch:fix-131665

Conversation

@jakobbotsch

Copy link
Copy Markdown
Member

CopilotAI review requested due to automatic review settings August 3, 2026 16:01
@github-actionsgithub-actionsBot added the area-CodeGen-coreclr CLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMI label Aug 3, 2026
@azure-pipelines

Copy link
Copy Markdown
Azure Pipelines:
Successfully started running 5 pipeline(s).
11 pipeline(s) were filtered out due to trigger conditions.
There may be pipelines that require an authorized user to comment /azp run to run.

@dotnet-policy-service

Copy link
Copy Markdown
Contributor

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

CopilotAI 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.

Pull request overview

This PR updates the CoreCLR JIT’s indirect call transformation logic to avoid spilling invariant call arguments (constants, GT_LCL_ADDR, GT_FTN_ADDR) into temporaries when splitting calls for guarded transforms. This prevents certain arguments (notably GT_LCL_ADDR) from being rewritten into GT_LCL_VAR temps, aligning with downstream shape expectations and avoiding the reported assert.

Changes:

  • In IndirectCallTransformer::Transformer::SplitCall, only spill “effectful / addr-exposed” uses when the use is notGenTree::IsInvariant().

@azure-pipelines

Copy link
Copy Markdown
Azure Pipelines:
Successfully started running 5 pipeline(s).
11 pipeline(s) were filtered out due to trigger conditions.
There may be pipelines that require an authorized user to comment /azp run to run.

@jakobbotsch

Copy link
Copy Markdown
MemberAuthor

cc @dotnet/jit-contrib PTAL @AndyAyersMS

This was spilling the LCL_ADDR that represents the indicator definition.

CopilotAI review requested due to automatic review settings August 4, 2026 13:25

CopilotAI 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.

Pull request overview

Copilot reviewed 1 out of 1 changed files in this pull request and generated no new comments.

@JulieLeeMSFTJulieLeeMSFT left a comment

Copy link
Copy Markdown
Member

Choose a reason for hiding this comment

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

LGTM.

@jakobbotsch

Copy link
Copy Markdown
MemberAuthor

/ba-g Timeouts

@jakobbotsch
jakobbotsch merged commit f107b23 into dotnet:mainAug 4, 2026
130 of 136 checks passed
@jakobbotsch
jakobbotsch deleted the fix-131665 branch August 4, 2026 20:53
@dotnet-milestone-botdotnet-milestone-botBot added this to the 11.0-rc1 milestone Aug 5, 2026
Sign up for freeto join this conversation on GitHub. Already have an account? Sign in to comment

Labels

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

Projects

None yet

4 participants

@jakobbotsch@AndyAyersMS@JulieLeeMSFT
, '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: Avoid unnecessary argument spills in indirect call transformer by jakobbotsch · Pull Request #131754 · dotnet/runtime · GitHub
Skip to content

JIT: Avoid unnecessary argument spills in indirect call transformer - #131754

Merged
jakobbotsch merged 2 commits into
dotnet:mainfrom
jakobbotsch:fix-131665
Aug 4, 2026
Merged

JIT: Avoid unnecessary argument spills in indirect call transformer#131754
jakobbotsch merged 2 commits into
dotnet:mainfrom
jakobbotsch:fix-131665

Conversation

@jakobbotsch

Copy link
Copy Markdown
Member

CopilotAI review requested due to automatic review settings August 3, 2026 16:01
@github-actionsgithub-actionsBot added the area-CodeGen-coreclr CLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMI label Aug 3, 2026
@azure-pipelines

Copy link
Copy Markdown
Azure Pipelines:
Successfully started running 5 pipeline(s).
11 pipeline(s) were filtered out due to trigger conditions.
There may be pipelines that require an authorized user to comment /azp run to run.

@dotnet-policy-service

Copy link
Copy Markdown
Contributor

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

CopilotAI 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.

Pull request overview

This PR updates the CoreCLR JIT’s indirect call transformation logic to avoid spilling invariant call arguments (constants, GT_LCL_ADDR, GT_FTN_ADDR) into temporaries when splitting calls for guarded transforms. This prevents certain arguments (notably GT_LCL_ADDR) from being rewritten into GT_LCL_VAR temps, aligning with downstream shape expectations and avoiding the reported assert.

Changes:

  • In IndirectCallTransformer::Transformer::SplitCall, only spill “effectful / addr-exposed” uses when the use is notGenTree::IsInvariant().

@azure-pipelines

Copy link
Copy Markdown
Azure Pipelines:
Successfully started running 5 pipeline(s).
11 pipeline(s) were filtered out due to trigger conditions.
There may be pipelines that require an authorized user to comment /azp run to run.

@jakobbotsch

Copy link
Copy Markdown
MemberAuthor

cc @dotnet/jit-contrib PTAL @AndyAyersMS

This was spilling the LCL_ADDR that represents the indicator definition.

CopilotAI review requested due to automatic review settings August 4, 2026 13:25

CopilotAI 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.

Pull request overview

Copilot reviewed 1 out of 1 changed files in this pull request and generated no new comments.

@JulieLeeMSFTJulieLeeMSFT left a comment

Copy link
Copy Markdown
Member

Choose a reason for hiding this comment

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

LGTM.

@jakobbotsch

Copy link
Copy Markdown
MemberAuthor

/ba-g Timeouts

@jakobbotsch
jakobbotsch merged commit f107b23 into dotnet:mainAug 4, 2026
130 of 136 checks passed
@jakobbotsch
jakobbotsch deleted the fix-131665 branch August 4, 2026 20:53
@dotnet-milestone-botdotnet-milestone-botBot added this to the 11.0-rc1 milestone Aug 5, 2026
Sign up for freeto join this conversation on GitHub. Already have an account? Sign in to comment

Labels

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

Projects

None yet

4 participants

@jakobbotsch@AndyAyersMS@JulieLeeMSFT
, '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: Avoid unnecessary argument spills in indirect call transformer by jakobbotsch · Pull Request #131754 · dotnet/runtime · GitHub
Skip to content

JIT: Avoid unnecessary argument spills in indirect call transformer - #131754

Merged
jakobbotsch merged 2 commits into
dotnet:mainfrom
jakobbotsch:fix-131665
Aug 4, 2026
Merged

JIT: Avoid unnecessary argument spills in indirect call transformer#131754
jakobbotsch merged 2 commits into
dotnet:mainfrom
jakobbotsch:fix-131665

Conversation

@jakobbotsch

Copy link
Copy Markdown
Member

CopilotAI review requested due to automatic review settings August 3, 2026 16:01
@github-actionsgithub-actionsBot added the area-CodeGen-coreclr CLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMI label Aug 3, 2026
@azure-pipelines

Copy link
Copy Markdown
Azure Pipelines:
Successfully started running 5 pipeline(s).
11 pipeline(s) were filtered out due to trigger conditions.
There may be pipelines that require an authorized user to comment /azp run to run.

@dotnet-policy-service

Copy link
Copy Markdown
Contributor

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

CopilotAI 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.

Pull request overview

This PR updates the CoreCLR JIT’s indirect call transformation logic to avoid spilling invariant call arguments (constants, GT_LCL_ADDR, GT_FTN_ADDR) into temporaries when splitting calls for guarded transforms. This prevents certain arguments (notably GT_LCL_ADDR) from being rewritten into GT_LCL_VAR temps, aligning with downstream shape expectations and avoiding the reported assert.

Changes:

  • In IndirectCallTransformer::Transformer::SplitCall, only spill “effectful / addr-exposed” uses when the use is notGenTree::IsInvariant().

@azure-pipelines

Copy link
Copy Markdown
Azure Pipelines:
Successfully started running 5 pipeline(s).
11 pipeline(s) were filtered out due to trigger conditions.
There may be pipelines that require an authorized user to comment /azp run to run.

@jakobbotsch

Copy link
Copy Markdown
MemberAuthor

cc @dotnet/jit-contrib PTAL @AndyAyersMS

This was spilling the LCL_ADDR that represents the indicator definition.

CopilotAI review requested due to automatic review settings August 4, 2026 13:25

CopilotAI 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.

Pull request overview

Copilot reviewed 1 out of 1 changed files in this pull request and generated no new comments.

@JulieLeeMSFTJulieLeeMSFT left a comment

Copy link
Copy Markdown
Member

Choose a reason for hiding this comment

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

LGTM.

@jakobbotsch

Copy link
Copy Markdown
MemberAuthor

/ba-g Timeouts

@jakobbotsch
jakobbotsch merged commit f107b23 into dotnet:mainAug 4, 2026
130 of 136 checks passed
@jakobbotsch
jakobbotsch deleted the fix-131665 branch August 4, 2026 20:53
@dotnet-milestone-botdotnet-milestone-botBot added this to the 11.0-rc1 milestone Aug 5, 2026
Sign up for freeto join this conversation on GitHub. Already have an account? Sign in to comment

Labels

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

Projects

None yet

4 participants

@jakobbotsch@AndyAyersMS@JulieLeeMSFT
, '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: Avoid unnecessary argument spills in indirect call transformer by jakobbotsch · Pull Request #131754 · dotnet/runtime · GitHub
Skip to content

JIT: Avoid unnecessary argument spills in indirect call transformer - #131754

Merged
jakobbotsch merged 2 commits into
dotnet:mainfrom
jakobbotsch:fix-131665
Aug 4, 2026
Merged

JIT: Avoid unnecessary argument spills in indirect call transformer#131754
jakobbotsch merged 2 commits into
dotnet:mainfrom
jakobbotsch:fix-131665

Conversation

@jakobbotsch

Copy link
Copy Markdown
Member

CopilotAI review requested due to automatic review settings August 3, 2026 16:01
@github-actionsgithub-actionsBot added the area-CodeGen-coreclr CLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMI label Aug 3, 2026
@azure-pipelines

Copy link
Copy Markdown
Azure Pipelines:
Successfully started running 5 pipeline(s).
11 pipeline(s) were filtered out due to trigger conditions.
There may be pipelines that require an authorized user to comment /azp run to run.

@dotnet-policy-service

Copy link
Copy Markdown
Contributor

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

CopilotAI 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.

Pull request overview

This PR updates the CoreCLR JIT’s indirect call transformation logic to avoid spilling invariant call arguments (constants, GT_LCL_ADDR, GT_FTN_ADDR) into temporaries when splitting calls for guarded transforms. This prevents certain arguments (notably GT_LCL_ADDR) from being rewritten into GT_LCL_VAR temps, aligning with downstream shape expectations and avoiding the reported assert.

Changes:

  • In IndirectCallTransformer::Transformer::SplitCall, only spill “effectful / addr-exposed” uses when the use is notGenTree::IsInvariant().

@azure-pipelines

Copy link
Copy Markdown
Azure Pipelines:
Successfully started running 5 pipeline(s).
11 pipeline(s) were filtered out due to trigger conditions.
There may be pipelines that require an authorized user to comment /azp run to run.

@jakobbotsch

Copy link
Copy Markdown
MemberAuthor

cc @dotnet/jit-contrib PTAL @AndyAyersMS

This was spilling the LCL_ADDR that represents the indicator definition.

CopilotAI review requested due to automatic review settings August 4, 2026 13:25

CopilotAI 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.

Pull request overview

Copilot reviewed 1 out of 1 changed files in this pull request and generated no new comments.

@JulieLeeMSFTJulieLeeMSFT left a comment

Copy link
Copy Markdown
Member

Choose a reason for hiding this comment

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

LGTM.

@jakobbotsch

Copy link
Copy Markdown
MemberAuthor

/ba-g Timeouts

@jakobbotsch
jakobbotsch merged commit f107b23 into dotnet:mainAug 4, 2026
130 of 136 checks passed
@jakobbotsch
jakobbotsch deleted the fix-131665 branch August 4, 2026 20:53
@dotnet-milestone-botdotnet-milestone-botBot added this to the 11.0-rc1 milestone Aug 5, 2026
Sign up for freeto join this conversation on GitHub. Already have an account? Sign in to comment

Labels

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

Projects

None yet

4 participants

@jakobbotsch@AndyAyersMS@JulieLeeMSFT