JIT: Skip unnecessary binary VN folding checks - #73919

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jakobbotsch merged 4 commits into
dotnet:mainfrom
jakobbotsch:opt-vn-for-func
Sep 8, 2022
Merged

JIT: Skip unnecessary binary VN folding checks#73919
jakobbotsch merged 4 commits into
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jakobbotsch:opt-vn-for-func

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For a lot of extremely common binary VN functions we do a series of
unnecessary folding checks, in particular VNF_ValWithExc and
VNF_ExcSetCons. Introduce a VNForFuncNoFolding and
VNPairForFuncNoFolding that bypasses folding and use it in some cases.

For a lot of extremely common binary VN functions we do a series of
unnecessary folding checks, in particular VNF_ValWithExc and
VNF_ExcSetCons. Introduce a VNForFuncNoFolding and
VNPairForFuncNoFolding that bypasses folding and use it in some cases.
@ghostghost added the area-CodeGen-coreclr CLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMI label Aug 14, 2022
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Issue Details

For a lot of extremely common binary VN functions we do a series of
unnecessary folding checks, in particular VNF_ValWithExc and
VNF_ExcSetCons. Introduce a VNForFuncNoFolding and
VNPairForFuncNoFolding that bypasses folding and use it in some cases.

Author:jakobbotsch
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area-CodeGen-coreclr

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@jakobbotschjakobbotsch added this to the 8.0.0 milestone Aug 15, 2022
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cc @dotnet/jit-contrib

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Looks good.

Wondering if the assert I suggested might help catch future cases where somebody bypasses folding when it would help.

GetVNFunc2Map()->Set(fstruct, resultVN);
}
return resultVN;
}

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How costly/difficult would it be to assert that we get the same result here as if we'd tried folding?

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I suppose in the debug build we can just call the regular version from the *NoFolding variant and validate that no folding occurred.

@jakobbotschjakobbotschSep 5, 2022

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I did this but I'm not too happy with it since it bypasses the "normal" implementation of VNForFuncNoFolding in debug builds which seems scary. And since VNForFunc has side effects related to using the cache I'm not a big fan of using that in an assert either. I'll leave this as-is, in the worst case it is just going to be some missed opportunities anyway.

@jakobbotsch
jakobbotsch merged commit 33704a5 into dotnet:mainSep 8, 2022
@jakobbotsch
jakobbotsch deleted the opt-vn-for-func branch September 8, 2022 15:28
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, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Add copy buttons to all
 blocks\n(function() {\n function addCopyButtons() {\n document.querySelectorAll('pre code').forEach(function(codeBlock) {\n if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;\n codeBlock.parentElement.setAttribute('data-copy-added', 'true');\n \n var btn = document.createElement('button');\n btn.textContent = 'Copy';\n 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;';\n btn.onmouseover = function() { this.style.opacity = '1'; };\n btn.onmouseout = function() { this.style.opacity = '0.7'; };\n btn.onclick = function() {\n navigator.clipboard.writeText(codeBlock.textContent).then(function() {\n btn.textContent = 'Copied!';\n setTimeout(function() { btn.textContent = 'Copy'; }, 1500);\n });\n };\n codeBlock.parentElement.style.position = 'relative';\n codeBlock.parentElement.appendChild(btn);\n });\n }\n \n addCopyButtons();\n \n // Re-run on dynamic content\n var observer = new MutationObserver(addCopyButtons);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Add Copy Buttons to Code Blocks");
}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '
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JIT: Skip unnecessary binary VN folding checks - #73919

Merged
jakobbotsch merged 4 commits into
dotnet:mainfrom
jakobbotsch:opt-vn-for-func
Sep 8, 2022
Merged

JIT: Skip unnecessary binary VN folding checks#73919
jakobbotsch merged 4 commits into
dotnet:mainfrom
jakobbotsch:opt-vn-for-func

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For a lot of extremely common binary VN functions we do a series of
unnecessary folding checks, in particular VNF_ValWithExc and
VNF_ExcSetCons. Introduce a VNForFuncNoFolding and
VNPairForFuncNoFolding that bypasses folding and use it in some cases.

For a lot of extremely common binary VN functions we do a series of
unnecessary folding checks, in particular VNF_ValWithExc and
VNF_ExcSetCons. Introduce a VNForFuncNoFolding and
VNPairForFuncNoFolding that bypasses folding and use it in some cases.
@ghostghost added the area-CodeGen-coreclr CLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMI label Aug 14, 2022
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Issue Details

For a lot of extremely common binary VN functions we do a series of
unnecessary folding checks, in particular VNF_ValWithExc and
VNF_ExcSetCons. Introduce a VNForFuncNoFolding and
VNPairForFuncNoFolding that bypasses folding and use it in some cases.

Author:jakobbotsch
Assignees:-
Labels:

area-CodeGen-coreclr

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@jakobbotschjakobbotsch added this to the 8.0.0 milestone Aug 15, 2022
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cc @dotnet/jit-contrib

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Looks good.

Wondering if the assert I suggested might help catch future cases where somebody bypasses folding when it would help.

GetVNFunc2Map()->Set(fstruct, resultVN);
}
return resultVN;
}

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How costly/difficult would it be to assert that we get the same result here as if we'd tried folding?

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I suppose in the debug build we can just call the regular version from the *NoFolding variant and validate that no folding occurred.

@jakobbotschjakobbotschSep 5, 2022

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I did this but I'm not too happy with it since it bypasses the "normal" implementation of VNForFuncNoFolding in debug builds which seems scary. And since VNForFunc has side effects related to using the cache I'm not a big fan of using that in an assert either. I'll leave this as-is, in the worst case it is just going to be some missed opportunities anyway.

@jakobbotsch
jakobbotsch merged commit 33704a5 into dotnet:mainSep 8, 2022
@jakobbotsch
jakobbotsch deleted the opt-vn-for-func branch September 8, 2022 15:28
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, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Force GitHub README to respect dark mode\n(function() {\n var style = document.createElement('style');\n style.textContent = '\n .markdown-body {\n color-scheme: dark light;\n }\n .markdown-body pre { background: #161b22 !important; }\n .markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }\n .markdown-body table th, .markdown-body table td { border-color: #30363d !important; }\n .markdown-body img { background: #0d1117; }\n .markdown-body blockquote { border-left-color: #8b949e; }\n .markdown-body hr { border-color: #30363d; }\n ';\n document.head.appendChild(style);\n})();", "GitHub Dark Mode README Fix"); } } catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + '
Skip to content

JIT: Skip unnecessary binary VN folding checks - #73919

Merged
jakobbotsch merged 4 commits into
dotnet:mainfrom
jakobbotsch:opt-vn-for-func
Sep 8, 2022
Merged

JIT: Skip unnecessary binary VN folding checks#73919
jakobbotsch merged 4 commits into
dotnet:mainfrom
jakobbotsch:opt-vn-for-func

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@jakobbotsch

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For a lot of extremely common binary VN functions we do a series of
unnecessary folding checks, in particular VNF_ValWithExc and
VNF_ExcSetCons. Introduce a VNForFuncNoFolding and
VNPairForFuncNoFolding that bypasses folding and use it in some cases.

For a lot of extremely common binary VN functions we do a series of
unnecessary folding checks, in particular VNF_ValWithExc and
VNF_ExcSetCons. Introduce a VNForFuncNoFolding and
VNPairForFuncNoFolding that bypasses folding and use it in some cases.
@ghostghost added the area-CodeGen-coreclr CLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMI label Aug 14, 2022
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Issue Details

For a lot of extremely common binary VN functions we do a series of
unnecessary folding checks, in particular VNF_ValWithExc and
VNF_ExcSetCons. Introduce a VNForFuncNoFolding and
VNPairForFuncNoFolding that bypasses folding and use it in some cases.

Author:jakobbotsch
Assignees:-
Labels:

area-CodeGen-coreclr

Milestone:-

@jakobbotschjakobbotsch added this to the 8.0.0 milestone Aug 15, 2022
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@jakobbotsch

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cc @dotnet/jit-contrib

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Looks good.

Wondering if the assert I suggested might help catch future cases where somebody bypasses folding when it would help.

GetVNFunc2Map()->Set(fstruct, resultVN);
}
return resultVN;
}

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How costly/difficult would it be to assert that we get the same result here as if we'd tried folding?

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I suppose in the debug build we can just call the regular version from the *NoFolding variant and validate that no folding occurred.

@jakobbotschjakobbotschSep 5, 2022

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I did this but I'm not too happy with it since it bypasses the "normal" implementation of VNForFuncNoFolding in debug builds which seems scary. And since VNForFunc has side effects related to using the cache I'm not a big fan of using that in an assert either. I'll leave this as-is, in the worst case it is just going to be some missed opportunities anyway.

@jakobbotsch
jakobbotsch merged commit 33704a5 into dotnet:mainSep 8, 2022
@jakobbotsch
jakobbotsch deleted the opt-vn-for-func branch September 8, 2022 15:28
@ghostghost locked as resolved and limited conversation to collaborators Oct 8, 2022
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, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Highlight search terms from Google/DuckDuckGo/Bing referrer\n(function() {\n var ref = document.referrer;\n var terms = [];\n \n if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {\n var url = new URL(ref);\n var q = url.searchParams.get('q') || url.searchParams.get('p');\n if (q) {\n terms = q.split(/\\s+/).filter(function(t) { return t.length > 2; });\n }\n }\n \n if (terms.length === 0) return;\n \n var style = document.createElement('style');\n style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';\n document.head.appendChild(style);\n \n function highlight(node) {\n if (node.nodeType === 3) { // text node\n var text = node.textContent;\n var found = false;\n terms.forEach(function(term) {\n var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\\]\\\\]/g, '\\\\') + ')', 'gi');\n if (regex.test(text)) {\n found = true;\n var frag = document.createDocumentFragment();\n var parts = text.split(regex);\n parts.forEach(function(part, i) {\n if (i % 2 === 0) {\n frag.appendChild(document.createTextNode(part));\n } else {\n var span = document.createElement('span');\n span.className = 'userscript-highlight';\n span.textContent = part;\n frag.appendChild(span);\n }\n });\n node.parentNode.replaceChild(frag, node);\n }\n });\n } else if (node.nodeType === 1 && node.childNodes) { // element\n var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];\n if (!skipTags.includes(node.tagName)) {\n Array.from(node.childNodes).forEach(highlight);\n }\n }\n }\n \n highlight(document.body);\n \n // Re-highlight on dynamic content\n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1 || node.nodeType === 3) highlight(node);\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Highlight Search Terms"); } } catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + '
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JIT: Skip unnecessary binary VN folding checks - #73919

Merged
jakobbotsch merged 4 commits into
dotnet:mainfrom
jakobbotsch:opt-vn-for-func
Sep 8, 2022
Merged

JIT: Skip unnecessary binary VN folding checks#73919
jakobbotsch merged 4 commits into
dotnet:mainfrom
jakobbotsch:opt-vn-for-func

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For a lot of extremely common binary VN functions we do a series of
unnecessary folding checks, in particular VNF_ValWithExc and
VNF_ExcSetCons. Introduce a VNForFuncNoFolding and
VNPairForFuncNoFolding that bypasses folding and use it in some cases.

For a lot of extremely common binary VN functions we do a series of
unnecessary folding checks, in particular VNF_ValWithExc and
VNF_ExcSetCons. Introduce a VNForFuncNoFolding and
VNPairForFuncNoFolding that bypasses folding and use it in some cases.
@ghostghost added the area-CodeGen-coreclr CLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMI label Aug 14, 2022
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Issue Details

For a lot of extremely common binary VN functions we do a series of
unnecessary folding checks, in particular VNF_ValWithExc and
VNF_ExcSetCons. Introduce a VNForFuncNoFolding and
VNPairForFuncNoFolding that bypasses folding and use it in some cases.

Author:jakobbotsch
Assignees:-
Labels:

area-CodeGen-coreclr

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@jakobbotschjakobbotsch added this to the 8.0.0 milestone Aug 15, 2022
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@jakobbotsch

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cc @dotnet/jit-contrib

@AndyAyersMSAndyAyersMS left a comment

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Looks good.

Wondering if the assert I suggested might help catch future cases where somebody bypasses folding when it would help.

GetVNFunc2Map()->Set(fstruct, resultVN);
}
return resultVN;
}

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How costly/difficult would it be to assert that we get the same result here as if we'd tried folding?

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I suppose in the debug build we can just call the regular version from the *NoFolding variant and validate that no folding occurred.

@jakobbotschjakobbotschSep 5, 2022

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I did this but I'm not too happy with it since it bypasses the "normal" implementation of VNForFuncNoFolding in debug builds which seems scary. And since VNForFunc has side effects related to using the cache I'm not a big fan of using that in an assert either. I'll leave this as-is, in the worst case it is just going to be some missed opportunities anyway.

@jakobbotsch
jakobbotsch merged commit 33704a5 into dotnet:mainSep 8, 2022
@jakobbotsch
jakobbotsch deleted the opt-vn-for-func branch September 8, 2022 15:28
@ghostghost locked as resolved and limited conversation to collaborators Oct 8, 2022
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, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Strip utm_, fbclid, gclid, etc. from all links on page\n(function() {\n var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',\n 'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',\n 'ref', 'ref_src', 'source', 'medium', 'campaign'];\n \n function cleanUrl(url) {\n try {\n var u = new URL(url, window.location.origin);\n var changed = false;\n trackingParams.forEach(function(p) {\n if (u.searchParams.has(p)) {\n u.searchParams.delete(p);\n changed = true;\n }\n });\n return changed ? u.toString() : url;\n } catch (e) {\n return url;\n }\n }\n \n function cleanLinks() {\n document.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n \n cleanLinks();\n \n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1) {\n if (node.tagName === 'A') cleanLinks();\n node.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Remove Tracking Parameters from Links"); } } catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); } })(); (function(){ try { var __m = "youtube.com"; var __re = new RegExp('^' + "youtube\\.com" + '
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JIT: Skip unnecessary binary VN folding checks - #73919

Merged
jakobbotsch merged 4 commits into
dotnet:mainfrom
jakobbotsch:opt-vn-for-func
Sep 8, 2022
Merged

JIT: Skip unnecessary binary VN folding checks#73919
jakobbotsch merged 4 commits into
dotnet:mainfrom
jakobbotsch:opt-vn-for-func

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For a lot of extremely common binary VN functions we do a series of
unnecessary folding checks, in particular VNF_ValWithExc and
VNF_ExcSetCons. Introduce a VNForFuncNoFolding and
VNPairForFuncNoFolding that bypasses folding and use it in some cases.

For a lot of extremely common binary VN functions we do a series of
unnecessary folding checks, in particular VNF_ValWithExc and
VNF_ExcSetCons. Introduce a VNForFuncNoFolding and
VNPairForFuncNoFolding that bypasses folding and use it in some cases.
@ghostghost added the area-CodeGen-coreclr CLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMI label Aug 14, 2022
@ghost

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

Issue Details

For a lot of extremely common binary VN functions we do a series of
unnecessary folding checks, in particular VNF_ValWithExc and
VNF_ExcSetCons. Introduce a VNForFuncNoFolding and
VNPairForFuncNoFolding that bypasses folding and use it in some cases.

Author:jakobbotsch
Assignees:-
Labels:

area-CodeGen-coreclr

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@jakobbotschjakobbotsch added this to the 8.0.0 milestone Aug 15, 2022
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cc @dotnet/jit-contrib

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Looks good.

Wondering if the assert I suggested might help catch future cases where somebody bypasses folding when it would help.

GetVNFunc2Map()->Set(fstruct, resultVN);
}
return resultVN;
}

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How costly/difficult would it be to assert that we get the same result here as if we'd tried folding?

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I suppose in the debug build we can just call the regular version from the *NoFolding variant and validate that no folding occurred.

@jakobbotschjakobbotschSep 5, 2022

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I did this but I'm not too happy with it since it bypasses the "normal" implementation of VNForFuncNoFolding in debug builds which seems scary. And since VNForFunc has side effects related to using the cache I'm not a big fan of using that in an assert either. I'll leave this as-is, in the worst case it is just going to be some missed opportunities anyway.

@jakobbotsch
jakobbotsch merged commit 33704a5 into dotnet:mainSep 8, 2022
@jakobbotsch
jakobbotsch deleted the opt-vn-for-func branch September 8, 2022 15:28
@ghostghost locked as resolved and limited conversation to collaborators Oct 8, 2022
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@jakobbotsch@AndyAyersMS
, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Auto-enable theater mode on YouTube\n(function() {\n function tryTheater() {\n var btn = document.querySelector('button[aria-label=\"Theater mode\"], ytd-player #player button[title=\"Theater mode\"]');\n if (btn && !btn.classList.contains('activated')) {\n btn.click();\n }\n }\n \n // Try immediately\n tryTheater();\n \n // Try after navigation (SPA)\n var lastUrl = location.href;\n setInterval(function() {\n if (location.href !== lastUrl) {\n lastUrl = location.href;\n setTimeout(tryTheater, 500);\n }\n }, 1000);\n \n // Also try on player load\n var observer = new MutationObserver(tryTheater);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "YouTube Theater Mode Default"); } } catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + '
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JIT: Skip unnecessary binary VN folding checks - #73919

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jakobbotsch merged 4 commits into
dotnet:mainfrom
jakobbotsch:opt-vn-for-func
Sep 8, 2022
Merged

JIT: Skip unnecessary binary VN folding checks#73919
jakobbotsch merged 4 commits into
dotnet:mainfrom
jakobbotsch:opt-vn-for-func

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For a lot of extremely common binary VN functions we do a series of
unnecessary folding checks, in particular VNF_ValWithExc and
VNF_ExcSetCons. Introduce a VNForFuncNoFolding and
VNPairForFuncNoFolding that bypasses folding and use it in some cases.

For a lot of extremely common binary VN functions we do a series of
unnecessary folding checks, in particular VNF_ValWithExc and
VNF_ExcSetCons. Introduce a VNForFuncNoFolding and
VNPairForFuncNoFolding that bypasses folding and use it in some cases.
@ghostghost added the area-CodeGen-coreclr CLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMI label Aug 14, 2022
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Issue Details

For a lot of extremely common binary VN functions we do a series of
unnecessary folding checks, in particular VNF_ValWithExc and
VNF_ExcSetCons. Introduce a VNForFuncNoFolding and
VNPairForFuncNoFolding that bypasses folding and use it in some cases.

Author:jakobbotsch
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area-CodeGen-coreclr

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@jakobbotschjakobbotsch added this to the 8.0.0 milestone Aug 15, 2022
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cc @dotnet/jit-contrib

@AndyAyersMSAndyAyersMS left a comment

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Looks good.

Wondering if the assert I suggested might help catch future cases where somebody bypasses folding when it would help.

GetVNFunc2Map()->Set(fstruct, resultVN);
}
return resultVN;
}

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How costly/difficult would it be to assert that we get the same result here as if we'd tried folding?

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I suppose in the debug build we can just call the regular version from the *NoFolding variant and validate that no folding occurred.

@jakobbotschjakobbotschSep 5, 2022

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I did this but I'm not too happy with it since it bypasses the "normal" implementation of VNForFuncNoFolding in debug builds which seems scary. And since VNForFunc has side effects related to using the cache I'm not a big fan of using that in an assert either. I'll leave this as-is, in the worst case it is just going to be some missed opportunities anyway.

@jakobbotsch
jakobbotsch merged commit 33704a5 into dotnet:mainSep 8, 2022
@jakobbotsch
jakobbotsch deleted the opt-vn-for-func branch September 8, 2022 15:28
@ghostghost locked as resolved and limited conversation to collaborators Oct 8, 2022
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, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Remove or un-stick sticky/fixed headers that block content\n(function() {\n function unstick() {\n document.querySelectorAll('header, nav, [role=\"banner\"], .header, .navbar, .sticky, .fixed-top, [style*=\"position: fixed\"], [style*=\"position:sticky\"]').forEach(function(el) {\n if (el.style.position === 'fixed' || el.style.position === 'sticky' || \n getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {\n el.style.position = 'static';\n el.style.top = 'auto';\n el.style.zIndex = 'auto';\n }\n });\n }\n \n unstick();\n \n var observer = new MutationObserver(unstick);\n observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });\n})();", "Kill Sticky Headers"); } } catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + '
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JIT: Skip unnecessary binary VN folding checks - #73919

Merged
jakobbotsch merged 4 commits into
dotnet:mainfrom
jakobbotsch:opt-vn-for-func
Sep 8, 2022
Merged

JIT: Skip unnecessary binary VN folding checks#73919
jakobbotsch merged 4 commits into
dotnet:mainfrom
jakobbotsch:opt-vn-for-func

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@jakobbotsch

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For a lot of extremely common binary VN functions we do a series of
unnecessary folding checks, in particular VNF_ValWithExc and
VNF_ExcSetCons. Introduce a VNForFuncNoFolding and
VNPairForFuncNoFolding that bypasses folding and use it in some cases.

For a lot of extremely common binary VN functions we do a series of
unnecessary folding checks, in particular VNF_ValWithExc and
VNF_ExcSetCons. Introduce a VNForFuncNoFolding and
VNPairForFuncNoFolding that bypasses folding and use it in some cases.
@ghostghost added the area-CodeGen-coreclr CLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMI label Aug 14, 2022
@ghost

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

Issue Details

For a lot of extremely common binary VN functions we do a series of
unnecessary folding checks, in particular VNF_ValWithExc and
VNF_ExcSetCons. Introduce a VNForFuncNoFolding and
VNPairForFuncNoFolding that bypasses folding and use it in some cases.

Author:jakobbotsch
Assignees:-
Labels:

area-CodeGen-coreclr

Milestone:-

@jakobbotschjakobbotsch added this to the 8.0.0 milestone Aug 15, 2022
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cc @dotnet/jit-contrib

@AndyAyersMSAndyAyersMS left a comment

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Looks good.

Wondering if the assert I suggested might help catch future cases where somebody bypasses folding when it would help.

GetVNFunc2Map()->Set(fstruct, resultVN);
}
return resultVN;
}

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How costly/difficult would it be to assert that we get the same result here as if we'd tried folding?

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I suppose in the debug build we can just call the regular version from the *NoFolding variant and validate that no folding occurred.

@jakobbotschjakobbotschSep 5, 2022

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I did this but I'm not too happy with it since it bypasses the "normal" implementation of VNForFuncNoFolding in debug builds which seems scary. And since VNForFunc has side effects related to using the cache I'm not a big fan of using that in an assert either. I'll leave this as-is, in the worst case it is just going to be some missed opportunities anyway.

@jakobbotsch
jakobbotsch merged commit 33704a5 into dotnet:mainSep 8, 2022
@jakobbotsch
jakobbotsch deleted the opt-vn-for-func branch September 8, 2022 15:28
@ghostghost locked as resolved and limited conversation to collaborators Oct 8, 2022
Sign up for freeto subscribe to this conversation on GitHub. Already have an account? Sign in.

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

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Development

Successfully merging this pull request may close these issues.

2 participants

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

JIT: Skip unnecessary binary VN folding checks - #73919

Merged
jakobbotsch merged 4 commits into
dotnet:mainfrom
jakobbotsch:opt-vn-for-func
Sep 8, 2022
Merged

JIT: Skip unnecessary binary VN folding checks#73919
jakobbotsch merged 4 commits into
dotnet:mainfrom
jakobbotsch:opt-vn-for-func

Conversation

@jakobbotsch

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For a lot of extremely common binary VN functions we do a series of
unnecessary folding checks, in particular VNF_ValWithExc and
VNF_ExcSetCons. Introduce a VNForFuncNoFolding and
VNPairForFuncNoFolding that bypasses folding and use it in some cases.

For a lot of extremely common binary VN functions we do a series of
unnecessary folding checks, in particular VNF_ValWithExc and
VNF_ExcSetCons. Introduce a VNForFuncNoFolding and
VNPairForFuncNoFolding that bypasses folding and use it in some cases.
@ghostghost added the area-CodeGen-coreclr CLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMI label Aug 14, 2022
@ghost

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

Issue Details

For a lot of extremely common binary VN functions we do a series of
unnecessary folding checks, in particular VNF_ValWithExc and
VNF_ExcSetCons. Introduce a VNForFuncNoFolding and
VNPairForFuncNoFolding that bypasses folding and use it in some cases.

Author:jakobbotsch
Assignees:-
Labels:

area-CodeGen-coreclr

Milestone:-

@jakobbotschjakobbotsch added this to the 8.0.0 milestone Aug 15, 2022
@jakobbotsch

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@jakobbotsch

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cc @dotnet/jit-contrib

@AndyAyersMSAndyAyersMS left a comment

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Looks good.

Wondering if the assert I suggested might help catch future cases where somebody bypasses folding when it would help.

GetVNFunc2Map()->Set(fstruct, resultVN);
}
return resultVN;
}

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How costly/difficult would it be to assert that we get the same result here as if we'd tried folding?

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MemberAuthor

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I suppose in the debug build we can just call the regular version from the *NoFolding variant and validate that no folding occurred.

@jakobbotschjakobbotschSep 5, 2022

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I did this but I'm not too happy with it since it bypasses the "normal" implementation of VNForFuncNoFolding in debug builds which seems scary. And since VNForFunc has side effects related to using the cache I'm not a big fan of using that in an assert either. I'll leave this as-is, in the worst case it is just going to be some missed opportunities anyway.

@jakobbotsch
jakobbotsch merged commit 33704a5 into dotnet:mainSep 8, 2022
@jakobbotsch
jakobbotsch deleted the opt-vn-for-func branch September 8, 2022 15:28
@ghostghost locked as resolved and limited conversation to collaborators Oct 8, 2022
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

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Development

Successfully merging this pull request may close these issues.

2 participants

@jakobbotsch@AndyAyersMS