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JIT: Fix for IV opt to preserve updates to a counter that is live into an EH handler - #129058

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JulieLeeMSFT merged 4 commits into
dotnet:mainfrom
JulieLeeMSFT:fix-jit-128392-iv-eh-liveness
Jun 19, 2026
Merged

JIT: Fix for IV opt to preserve updates to a counter that is live into an EH handler#129058
JulieLeeMSFT merged 4 commits into
dotnet:mainfrom
JulieLeeMSFT:fix-jit-128392-iv-eh-liveness

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Estimated Pipeline Durations

This model assumes that the current state of the entire CI infrastructure is normal, and that your CI pipelines will succeed.

PipelineLower BoundEstimated TimeUpper Bound
runtime-dev-innerloop51 minutes, 23 seconds58 minutes, 40 seconds1 hour, 5 minutes, 56 seconds
runtime-coreclr superpmi-diffs❌❌❌
runtime1 hour, 18 minutes, 24 seconds2 hours, 26 minutes, 46 seconds3 hours, 35 minutes, 7 seconds
dotnet-linker-tests51 minutes, 20 seconds1 hour, 42 minutes, 6 seconds2 hours, 32 minutes, 52 seconds
runtime-coreclr hardware-intrinsics1 hour, 13 minutes, 55 seconds2 hours, 25 seconds2 hours, 46 minutes, 54 seconds

Pipelines denoted with ❌ means that this pipeline is highly variable, and we cannot predict its duration. This typically means this pipeline changes the legs it runs based on the PR's changed contents.

Highest Work Item Wait Time Queues

Here's a list of the top 5 queues with the highest work item wait time:

QueueWork Item Wait TimeDifference in Moving Avg
windows.10.amd64.open.rt41 minutes, 29 seconds-0.12% 📉
windows.10.amd64.serverrs5.open.rt27 minutes, 14 seconds-0.12% 📉
windows.10.amd64.client.open.rt25 minutes, 43 seconds-0.19% 📉
windows.11.amd64.client.open.rt25 minutes, 32 seconds-0.15% 📉
azurelinux.3.amd64.open.rt9 minutes, 49 seconds-0.12% 📉

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Your Queues

☁️ Helix Queues

dotnet/runtime is currently configured to submit to the following Helix queues:

🏢 On Premises Helix Queues

dotnet/runtime uses the following on-prem queues:

⚠️ We failed to query some work item wait times.

This typically means there hasn't been any recent work submitted to these queues. If this looks wrong, please contact @dnceng.

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, 'i'); if (__m === '*' || __re.test(location.href)) { // Add copy buttons to all 
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(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() {
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codeBlock.parentElement.style.position = 'relative';
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});
}
addCopyButtons();
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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); }
})();
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try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '
JIT: Fix for IV opt to preserve updates to a counter that is live into an EH handler by JulieLeeMSFT · Pull Request #129058 · dotnet/runtime · GitHub
Skip to content
JIT: Fix for IV opt to preserve updates to a counter that is live into an EH handler - #129058
Merged
JulieLeeMSFT merged 4 commits into
dotnet:mainfrom 
JulieLeeMSFT:fix-jit-128392-iv-eh-liveness
Jun 19, 2026
Merged
JIT: Fix for IV opt to preserve updates to a counter that is live into an EH handler#129058
JulieLeeMSFT merged 4 commits into
dotnet:mainfrom 
JulieLeeMSFT:fix-jit-128392-iv-eh-liveness

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View the current status of Helix
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Pipeline Status
The list of queues is cached weekly. If your PR changes what queues your pipelines use, this information will not show the updated queues.
Estimated Pipeline Durations
This model assumes that the current state of the entire CI infrastructure is normal, and that your CI pipelines will succeed.
PipelineLower BoundEstimated TimeUpper Bound
runtime-dev-innerloop51 minutes, 23 seconds58 minutes, 40 seconds1 hour, 5 minutes, 56 seconds
runtime-coreclr superpmi-diffs❌❌❌
runtime1 hour, 18 minutes, 24 seconds2 hours, 26 minutes, 46 seconds3 hours, 35 minutes, 7 seconds
dotnet-linker-tests51 minutes, 20 seconds1 hour, 42 minutes, 6 seconds2 hours, 32 minutes, 52 seconds
runtime-coreclr hardware-intrinsics1 hour, 13 minutes, 55 seconds2 hours, 25 seconds2 hours, 46 minutes, 54 seconds
Pipelines denoted with ❌ means that this pipeline is highly variable, and we cannot predict its duration. This typically means this pipeline changes the legs it runs based on the PR's changed contents.
Highest Work Item Wait Time Queues
Here's a list of the top 5 queues with the highest work item wait time:
QueueWork Item Wait TimeDifference in Moving Avg
windows.10.amd64.open.rt41 minutes, 29 seconds-0.12% 📉
windows.10.amd64.serverrs5.open.rt27 minutes, 14 seconds-0.12% 📉
windows.10.amd64.client.open.rt25 minutes, 43 seconds-0.19% 📉
windows.11.amd64.client.open.rt25 minutes, 32 seconds-0.15% 📉
azurelinux.3.amd64.open.rt9 minutes, 49 seconds-0.12% 📉
Grafana Dashboard
For more in-depth information on the status of Helix, visit our Grafana Dashboard.
Your Queues
☁️ Helix Queues
dotnet/runtime is currently configured to submit to the following Helix queues:
🏢 On Premises Helix Queues
dotnet/runtime uses the following on-prem queues:
⚠️ We failed to query some work item wait times.
This typically means there hasn't been any recent work submitted to these queues. If this looks wrong, please contact @dnceng.
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, '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: Fix for IV opt to preserve updates to a counter that is live into an EH handler by JulieLeeMSFT · Pull Request #129058 · dotnet/runtime · GitHub
Skip to content
JIT: Fix for IV opt to preserve updates to a counter that is live into an EH handler - #129058
Merged
JulieLeeMSFT merged 4 commits into
dotnet:mainfrom 
JulieLeeMSFT:fix-jit-128392-iv-eh-liveness
Jun 19, 2026
Merged
JIT: Fix for IV opt to preserve updates to a counter that is live into an EH handler#129058
JulieLeeMSFT merged 4 commits into
dotnet:mainfrom 
JulieLeeMSFT:fix-jit-128392-iv-eh-liveness

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Build Analysis / Helix Queue Insights (preview)
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View the current status of Helix
Details
Pipeline Status
The list of queues is cached weekly. If your PR changes what queues your pipelines use, this information will not show the updated queues.
Estimated Pipeline Durations
This model assumes that the current state of the entire CI infrastructure is normal, and that your CI pipelines will succeed.
PipelineLower BoundEstimated TimeUpper Bound
runtime-dev-innerloop51 minutes, 23 seconds58 minutes, 40 seconds1 hour, 5 minutes, 56 seconds
runtime-coreclr superpmi-diffs❌❌❌
runtime1 hour, 18 minutes, 24 seconds2 hours, 26 minutes, 46 seconds3 hours, 35 minutes, 7 seconds
dotnet-linker-tests51 minutes, 20 seconds1 hour, 42 minutes, 6 seconds2 hours, 32 minutes, 52 seconds
runtime-coreclr hardware-intrinsics1 hour, 13 minutes, 55 seconds2 hours, 25 seconds2 hours, 46 minutes, 54 seconds
Pipelines denoted with ❌ means that this pipeline is highly variable, and we cannot predict its duration. This typically means this pipeline changes the legs it runs based on the PR's changed contents.
Highest Work Item Wait Time Queues
Here's a list of the top 5 queues with the highest work item wait time:
QueueWork Item Wait TimeDifference in Moving Avg
windows.10.amd64.open.rt41 minutes, 29 seconds-0.12% 📉
windows.10.amd64.serverrs5.open.rt27 minutes, 14 seconds-0.12% 📉
windows.10.amd64.client.open.rt25 minutes, 43 seconds-0.19% 📉
windows.11.amd64.client.open.rt25 minutes, 32 seconds-0.15% 📉
azurelinux.3.amd64.open.rt9 minutes, 49 seconds-0.12% 📉
Grafana Dashboard
For more in-depth information on the status of Helix, visit our Grafana Dashboard.
Your Queues
☁️ Helix Queues
dotnet/runtime is currently configured to submit to the following Helix queues:
🏢 On Premises Helix Queues
dotnet/runtime uses the following on-prem queues:
⚠️ We failed to query some work item wait times.
This typically means there hasn't been any recent work submitted to these queues. If this looks wrong, please contact @dnceng.
Build Pools
Was this helpful? YesNo
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, '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');
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found = true;
var frag = document.createDocumentFragment();
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span.className = 'userscript-highlight';
span.textContent = part;
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node.parentNode.replaceChild(frag, node);
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});
} 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);
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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: Fix for IV opt to preserve updates to a counter that is live into an EH handler by JulieLeeMSFT · Pull Request #129058 · dotnet/runtime · GitHub
Skip to content
JIT: Fix for IV opt to preserve updates to a counter that is live into an EH handler - #129058
Merged
JulieLeeMSFT merged 4 commits into
dotnet:mainfrom 
JulieLeeMSFT:fix-jit-128392-iv-eh-liveness
Jun 19, 2026
Merged
JIT: Fix for IV opt to preserve updates to a counter that is live into an EH handler#129058
JulieLeeMSFT merged 4 commits into
dotnet:mainfrom 
JulieLeeMSFT:fix-jit-128392-iv-eh-liveness

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Build Analysis / Helix Queue Insights (preview)
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View the current status of Helix
Details
Pipeline Status
The list of queues is cached weekly. If your PR changes what queues your pipelines use, this information will not show the updated queues.
Estimated Pipeline Durations
This model assumes that the current state of the entire CI infrastructure is normal, and that your CI pipelines will succeed.
PipelineLower BoundEstimated TimeUpper Bound
runtime-dev-innerloop51 minutes, 23 seconds58 minutes, 40 seconds1 hour, 5 minutes, 56 seconds
runtime-coreclr superpmi-diffs❌❌❌
runtime1 hour, 18 minutes, 24 seconds2 hours, 26 minutes, 46 seconds3 hours, 35 minutes, 7 seconds
dotnet-linker-tests51 minutes, 20 seconds1 hour, 42 minutes, 6 seconds2 hours, 32 minutes, 52 seconds
runtime-coreclr hardware-intrinsics1 hour, 13 minutes, 55 seconds2 hours, 25 seconds2 hours, 46 minutes, 54 seconds
Pipelines denoted with ❌ means that this pipeline is highly variable, and we cannot predict its duration. This typically means this pipeline changes the legs it runs based on the PR's changed contents.
Highest Work Item Wait Time Queues
Here's a list of the top 5 queues with the highest work item wait time:
QueueWork Item Wait TimeDifference in Moving Avg
windows.10.amd64.open.rt41 minutes, 29 seconds-0.12% 📉
windows.10.amd64.serverrs5.open.rt27 minutes, 14 seconds-0.12% 📉
windows.10.amd64.client.open.rt25 minutes, 43 seconds-0.19% 📉
windows.11.amd64.client.open.rt25 minutes, 32 seconds-0.15% 📉
azurelinux.3.amd64.open.rt9 minutes, 49 seconds-0.12% 📉
Grafana Dashboard
For more in-depth information on the status of Helix, visit our Grafana Dashboard.
Your Queues
☁️ Helix Queues
dotnet/runtime is currently configured to submit to the following Helix queues:
🏢 On Premises Helix Queues
dotnet/runtime uses the following on-prem queues:
⚠️ We failed to query some work item wait times.
This typically means there hasn't been any recent work submitted to these queues. If this looks wrong, please contact @dnceng.
Build Pools
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View more details on Build Analysis


, '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: Fix for IV opt to preserve updates to a counter that is live into an EH handler by JulieLeeMSFT · Pull Request #129058 · dotnet/runtime · GitHub
Skip to content
JIT: Fix for IV opt to preserve updates to a counter that is live into an EH handler - #129058
Merged
JulieLeeMSFT merged 4 commits into
dotnet:mainfrom 
JulieLeeMSFT:fix-jit-128392-iv-eh-liveness
Jun 19, 2026
Merged
JIT: Fix for IV opt to preserve updates to a counter that is live into an EH handler#129058
JulieLeeMSFT merged 4 commits into
dotnet:mainfrom 
JulieLeeMSFT:fix-jit-128392-iv-eh-liveness

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Build Analysis / Helix Queue Insights (preview)
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View the current status of Helix
Details
Pipeline Status
The list of queues is cached weekly. If your PR changes what queues your pipelines use, this information will not show the updated queues.
Estimated Pipeline Durations
This model assumes that the current state of the entire CI infrastructure is normal, and that your CI pipelines will succeed.
PipelineLower BoundEstimated TimeUpper Bound
runtime-dev-innerloop51 minutes, 23 seconds58 minutes, 40 seconds1 hour, 5 minutes, 56 seconds
runtime-coreclr superpmi-diffs❌❌❌
runtime1 hour, 18 minutes, 24 seconds2 hours, 26 minutes, 46 seconds3 hours, 35 minutes, 7 seconds
dotnet-linker-tests51 minutes, 20 seconds1 hour, 42 minutes, 6 seconds2 hours, 32 minutes, 52 seconds
runtime-coreclr hardware-intrinsics1 hour, 13 minutes, 55 seconds2 hours, 25 seconds2 hours, 46 minutes, 54 seconds
Pipelines denoted with ❌ means that this pipeline is highly variable, and we cannot predict its duration. This typically means this pipeline changes the legs it runs based on the PR's changed contents.
Highest Work Item Wait Time Queues
Here's a list of the top 5 queues with the highest work item wait time:
QueueWork Item Wait TimeDifference in Moving Avg
windows.10.amd64.open.rt41 minutes, 29 seconds-0.12% 📉
windows.10.amd64.serverrs5.open.rt27 minutes, 14 seconds-0.12% 📉
windows.10.amd64.client.open.rt25 minutes, 43 seconds-0.19% 📉
windows.11.amd64.client.open.rt25 minutes, 32 seconds-0.15% 📉
azurelinux.3.amd64.open.rt9 minutes, 49 seconds-0.12% 📉
Grafana Dashboard
For more in-depth information on the status of Helix, visit our Grafana Dashboard.
Your Queues
☁️ Helix Queues
dotnet/runtime is currently configured to submit to the following Helix queues:
🏢 On Premises Helix Queues
dotnet/runtime uses the following on-prem queues:
⚠️ We failed to query some work item wait times.
This typically means there hasn't been any recent work submitted to these queues. If this looks wrong, please contact @dnceng.
Build Pools
Was this helpful? YesNo
View more details on Build Analysis


, '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: Fix for IV opt to preserve updates to a counter that is live into an EH handler by JulieLeeMSFT · Pull Request #129058 · dotnet/runtime · GitHub
Skip to content
JIT: Fix for IV opt to preserve updates to a counter that is live into an EH handler - #129058
Merged
JulieLeeMSFT merged 4 commits into
dotnet:mainfrom 
JulieLeeMSFT:fix-jit-128392-iv-eh-liveness
Jun 19, 2026
Merged
JIT: Fix for IV opt to preserve updates to a counter that is live into an EH handler#129058
JulieLeeMSFT merged 4 commits into
dotnet:mainfrom 
JulieLeeMSFT:fix-jit-128392-iv-eh-liveness

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Build Analysis / Helix Queue Insights (preview)
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Jun 19, 2026 in 0s

View the current status of Helix
Details
Pipeline Status
The list of queues is cached weekly. If your PR changes what queues your pipelines use, this information will not show the updated queues.
Estimated Pipeline Durations
This model assumes that the current state of the entire CI infrastructure is normal, and that your CI pipelines will succeed.
PipelineLower BoundEstimated TimeUpper Bound
runtime-dev-innerloop51 minutes, 23 seconds58 minutes, 40 seconds1 hour, 5 minutes, 56 seconds
runtime-coreclr superpmi-diffs❌❌❌
runtime1 hour, 18 minutes, 24 seconds2 hours, 26 minutes, 46 seconds3 hours, 35 minutes, 7 seconds
dotnet-linker-tests51 minutes, 20 seconds1 hour, 42 minutes, 6 seconds2 hours, 32 minutes, 52 seconds
runtime-coreclr hardware-intrinsics1 hour, 13 minutes, 55 seconds2 hours, 25 seconds2 hours, 46 minutes, 54 seconds
Pipelines denoted with ❌ means that this pipeline is highly variable, and we cannot predict its duration. This typically means this pipeline changes the legs it runs based on the PR's changed contents.
Highest Work Item Wait Time Queues
Here's a list of the top 5 queues with the highest work item wait time:
QueueWork Item Wait TimeDifference in Moving Avg
windows.10.amd64.open.rt41 minutes, 29 seconds-0.12% 📉
windows.10.amd64.serverrs5.open.rt27 minutes, 14 seconds-0.12% 📉
windows.10.amd64.client.open.rt25 minutes, 43 seconds-0.19% 📉
windows.11.amd64.client.open.rt25 minutes, 32 seconds-0.15% 📉
azurelinux.3.amd64.open.rt9 minutes, 49 seconds-0.12% 📉
Grafana Dashboard
For more in-depth information on the status of Helix, visit our Grafana Dashboard.
Your Queues
☁️ Helix Queues
dotnet/runtime is currently configured to submit to the following Helix queues:
🏢 On Premises Helix Queues
dotnet/runtime uses the following on-prem queues:
⚠️ We failed to query some work item wait times.
This typically means there hasn't been any recent work submitted to these queues. If this looks wrong, please contact @dnceng.
Build Pools
Was this helpful? YesNo
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, '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: Fix for IV opt to preserve updates to a counter that is live into an EH handler by JulieLeeMSFT · Pull Request #129058 · dotnet/runtime · GitHub
Skip to content
JIT: Fix for IV opt to preserve updates to a counter that is live into an EH handler - #129058
Merged
JulieLeeMSFT merged 4 commits into
dotnet:mainfrom 
JulieLeeMSFT:fix-jit-128392-iv-eh-liveness
Jun 19, 2026
Merged
JIT: Fix for IV opt to preserve updates to a counter that is live into an EH handler#129058
JulieLeeMSFT merged 4 commits into
dotnet:mainfrom 
JulieLeeMSFT:fix-jit-128392-iv-eh-liveness

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View the current status of Helix
Details
Pipeline Status
The list of queues is cached weekly. If your PR changes what queues your pipelines use, this information will not show the updated queues.
Estimated Pipeline Durations
This model assumes that the current state of the entire CI infrastructure is normal, and that your CI pipelines will succeed.
PipelineLower BoundEstimated TimeUpper Bound
runtime-dev-innerloop51 minutes, 23 seconds58 minutes, 40 seconds1 hour, 5 minutes, 56 seconds
runtime-coreclr superpmi-diffs❌❌❌
runtime1 hour, 18 minutes, 24 seconds2 hours, 26 minutes, 46 seconds3 hours, 35 minutes, 7 seconds
dotnet-linker-tests51 minutes, 20 seconds1 hour, 42 minutes, 6 seconds2 hours, 32 minutes, 52 seconds
runtime-coreclr hardware-intrinsics1 hour, 13 minutes, 55 seconds2 hours, 25 seconds2 hours, 46 minutes, 54 seconds
Pipelines denoted with ❌ means that this pipeline is highly variable, and we cannot predict its duration. This typically means this pipeline changes the legs it runs based on the PR's changed contents.
Highest Work Item Wait Time Queues
Here's a list of the top 5 queues with the highest work item wait time:
QueueWork Item Wait TimeDifference in Moving Avg
windows.10.amd64.open.rt41 minutes, 29 seconds-0.12% 📉
windows.10.amd64.serverrs5.open.rt27 minutes, 14 seconds-0.12% 📉
windows.10.amd64.client.open.rt25 minutes, 43 seconds-0.19% 📉
windows.11.amd64.client.open.rt25 minutes, 32 seconds-0.15% 📉
azurelinux.3.amd64.open.rt9 minutes, 49 seconds-0.12% 📉
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dotnet/runtime uses the following on-prem queues:
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, '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: Fix for IV opt to preserve updates to a counter that is live into an EH handler by JulieLeeMSFT · Pull Request #129058 · dotnet/runtime · GitHub
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JIT: Fix for IV opt to preserve updates to a counter that is live into an EH handler - #129058
Merged
JulieLeeMSFT merged 4 commits into
dotnet:mainfrom 
JulieLeeMSFT:fix-jit-128392-iv-eh-liveness
Jun 19, 2026
Merged
JIT: Fix for IV opt to preserve updates to a counter that is live into an EH handler#129058
JulieLeeMSFT merged 4 commits into
dotnet:mainfrom 
JulieLeeMSFT:fix-jit-128392-iv-eh-liveness

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Details
Pipeline Status
The list of queues is cached weekly. If your PR changes what queues your pipelines use, this information will not show the updated queues.
Estimated Pipeline Durations
This model assumes that the current state of the entire CI infrastructure is normal, and that your CI pipelines will succeed.
PipelineLower BoundEstimated TimeUpper Bound
runtime-dev-innerloop51 minutes, 23 seconds58 minutes, 40 seconds1 hour, 5 minutes, 56 seconds
runtime-coreclr superpmi-diffs❌❌❌
runtime1 hour, 18 minutes, 24 seconds2 hours, 26 minutes, 46 seconds3 hours, 35 minutes, 7 seconds
dotnet-linker-tests51 minutes, 20 seconds1 hour, 42 minutes, 6 seconds2 hours, 32 minutes, 52 seconds
runtime-coreclr hardware-intrinsics1 hour, 13 minutes, 55 seconds2 hours, 25 seconds2 hours, 46 minutes, 54 seconds
Pipelines denoted with ❌ means that this pipeline is highly variable, and we cannot predict its duration. This typically means this pipeline changes the legs it runs based on the PR's changed contents.
Highest Work Item Wait Time Queues
Here's a list of the top 5 queues with the highest work item wait time:
QueueWork Item Wait TimeDifference in Moving Avg
windows.10.amd64.open.rt41 minutes, 29 seconds-0.12% 📉
windows.10.amd64.serverrs5.open.rt27 minutes, 14 seconds-0.12% 📉
windows.10.amd64.client.open.rt25 minutes, 43 seconds-0.19% 📉
windows.11.amd64.client.open.rt25 minutes, 32 seconds-0.15% 📉
azurelinux.3.amd64.open.rt9 minutes, 49 seconds-0.12% 📉
Grafana Dashboard
For more in-depth information on the status of Helix, visit our Grafana Dashboard.
Your Queues
☁️ Helix Queues
dotnet/runtime is currently configured to submit to the following Helix queues:
🏢 On Premises Helix Queues
dotnet/runtime uses the following on-prem queues:
⚠️ We failed to query some work item wait times.
This typically means there hasn't been any recent work submitted to these queues. If this looks wrong, please contact @dnceng.
Build Pools
Was this helpful? YesNo
View more details on Build Analysis