[wasm] Add extending conversions to PackedSimd - #86252

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radekdoulik merged 2 commits into
dotnet:mainfrom
radekdoulik:pr-wasm-packed-simd-ext-conversions
May 15, 2023
Merged

[wasm] Add extending conversions to PackedSimd#86252
radekdoulik merged 2 commits into
dotnet:mainfrom
radekdoulik:pr-wasm-packed-simd-ext-conversions

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Note regarding the new-api-needs-documentation label:

This serves as a reminder for when your PR is modifying a ref *.cs file and adding/modifying public APIs, please make sure the API implementation in the src *.cs file is documented with triple slash comments, so the PR reviewers can sign off that change.

@radekdoulik
radekdoulik requested a review from lewingMay 15, 2023 15:09
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Test method:

 static void TestExtConversions()
{
Vector128<int> v1int = Vector128.Create(RandomInt, RandomInt, RandomInt, RandomInt);
Vector128<uint> v1uint = Vector128.Create((uint)Random.Shared.Next(), (uint)Random.Shared.Next(), (uint)Random.Shared.Next(), (uint)Random.Shared.Next());
Vector128<byte> v1byte = Vector128.Create(0, (byte)Random.Shared.Next(), (byte)Random.Shared.Next(), (byte)Random.Shared.Next(), (byte)Random.Shared.Next(), (byte)Random.Shared.Next(), (byte)Random.Shared.Next(), (byte)Random.Shared.Next(), (byte)Random.Shared.Next(), (byte)Random.Shared.Next(), (byte)Random.Shared.Next(), (byte)Random.Shared.Next(), (byte)Random.Shared.Next(), (byte)Random.Shared.Next(), (byte)Random.Shared.Next(), (byte)Random.Shared.Next());
Vector128<sbyte> v1sbyte = Vector128.Create(RandomSByte, RandomSByte, RandomSByte, RandomSByte, RandomSByte, RandomSByte, RandomSByte, RandomSByte, RandomSByte, RandomSByte, RandomSByte, RandomSByte, RandomSByte, RandomSByte, RandomSByte, RandomSByte);
Vector128<short> v1short = Vector128.Create(RandomShort, RandomShort, RandomShort, RandomShort, RandomShort, RandomShort, RandomShort, RandomShort);
Vector128<ushort> v1ushort = Vector128.Create((ushort)Random.Shared.Next(), (ushort)Random.Shared.Next(), (ushort)Random.Shared.Next(), (ushort)Random.Shared.Next(), (ushort)Random.Shared.Next(), (ushort)Random.Shared.Next(), (ushort)Random.Shared.Next(), (ushort)Random.Shared.Next());
Console.WriteLine($"v1sbyte: {v1sbyte}");
Console.WriteLine($"v1byte: {v1byte}");
Console.WriteLine($"v1short: {v1short}");
Console.WriteLine($"v1ushort: {v1ushort}");
Console.WriteLine($"v1int: {v1int}");
Console.WriteLine($"v1uint: {v1uint}");
Console.WriteLine($"sbyte to short sign ext (lower): {PackedSimd.SignExtendWideningLower(v1sbyte)}");
Console.WriteLine($"sbyte to short sign ext (upper): {PackedSimd.SignExtendWideningUpper(v1sbyte)}");
Console.WriteLine($"sbyte to short zero ext (lower): {PackedSimd.ZeroExtendWideningLower(v1sbyte)}");
Console.WriteLine($"sbyte to short zero ext (upper): {PackedSimd.ZeroExtendWideningUpper(v1sbyte)}");
Console.WriteLine($"byte to ushort sign ext (lower): {PackedSimd.SignExtendWideningLower(v1byte)}");
Console.WriteLine($"byte to ushort sign ext (upper): {PackedSimd.SignExtendWideningUpper(v1byte)}");
Console.WriteLine($"byte to ushort zero ext (lower): {PackedSimd.ZeroExtendWideningLower(v1byte)}");
Console.WriteLine($"byte to ushort zero ext (upper): {PackedSimd.ZeroExtendWideningUpper(v1byte)}");
Console.WriteLine($"short to int sign ext (lower): {PackedSimd.SignExtendWideningLower(v1short)}");
Console.WriteLine($"short to int sign ext (upper): {PackedSimd.SignExtendWideningUpper(v1short)}");
Console.WriteLine($"short to int zero ext (lower): {PackedSimd.ZeroExtendWideningLower(v1short)}");
Console.WriteLine($"short to int zero ext (upper): {PackedSimd.ZeroExtendWideningUpper(v1short)}");
Console.WriteLine($"ushort to uint sign ext (lower): {PackedSimd.SignExtendWideningLower(v1ushort)}");
Console.WriteLine($"ushort to uint sign ext (upper): {PackedSimd.SignExtendWideningUpper(v1ushort)}");
Console.WriteLine($"ushort to uint zero ext (lower): {PackedSimd.ZeroExtendWideningLower(v1ushort)}");
Console.WriteLine($"ushort to uint zero ext (upper): {PackedSimd.ZeroExtendWideningUpper(v1ushort)}");
Console.WriteLine($"int to long sign ext (lower): {PackedSimd.SignExtendWideningLower(v1int)}");
Console.WriteLine($"int to long sign ext (upper): {PackedSimd.SignExtendWideningUpper(v1int)}");
Console.WriteLine($"int to long zero ext (lower): {PackedSimd.ZeroExtendWideningLower(v1int)}");
Console.WriteLine($"int to long zero ext (upper): {PackedSimd.ZeroExtendWideningUpper(v1int)}");
Console.WriteLine($"uint to ulong sign ext (lower): {PackedSimd.SignExtendWideningLower(v1uint)}");
Console.WriteLine($"uint to ulong sign ext (upper): {PackedSimd.SignExtendWideningUpper(v1uint)}");
Console.WriteLine($"uint to ulong zero ext (lower): {PackedSimd.ZeroExtendWideningLower(v1uint)}");
Console.WriteLine($"uint to ulong zero ext (upper): {PackedSimd.ZeroExtendWideningUpper(v1uint)}");
}

output:

 v1sbyte: <-2, -25, 81, 85, 94, -114, -46, 18, 1, -66, 46, -73, 76, -4, 124, 88>
v1byte: <0, 229, 13, 234, 228, 107, 238, 119, 4, 190, 183, 84, 87, 127, 46, 135>
v1short: <-21942, 12726, -31745, -3459, 11206, -25452, 15233, -19319>
v1ushort: <58688, 38751, 4831, 63651, 29450, 49653, 62398, 19778>
v1int: <-330723718, 654137123, 666254210, -764101589>
v1uint: <1734002338, 80703557, 1326853359, 991892688>
sbyte to short sign ext (lower): <-2, -25, 81, 85, 94, -114, -46, 18>
sbyte to short sign ext (upper): <1, -66, 46, -73, 76, -4, 124, 88>
sbyte to short zero ext (lower): <254, 231, 81, 85, 94, 142, 210, 18>
sbyte to short zero ext (upper): <1, 190, 46, 183, 76, 252, 124, 88>
byte to ushort sign ext (lower): <0, 65509, 13, 65514, 65508, 107, 65518, 119>
byte to ushort sign ext (upper): <4, 65470, 65463, 84, 87, 127, 46, 65415>
byte to ushort zero ext (lower): <0, 229, 13, 234, 228, 107, 238, 119>
byte to ushort zero ext (upper): <4, 190, 183, 84, 87, 127, 46, 135>
short to int sign ext (lower): <-21942, 12726, -31745, -3459>
short to int sign ext (upper): <11206, -25452, 15233, -19319>
short to int zero ext (lower): <43594, 12726, 33791, 62077>
short to int zero ext (upper): <11206, 40084, 15233, 46217>
ushort to uint sign ext (lower): <4294960448, 4294940511, 4831, 4294965411>
ushort to uint sign ext (upper): <29450, 4294951413, 4294964158, 19778>
ushort to uint zero ext (lower): <58688, 38751, 4831, 63651>
ushort to uint zero ext (upper): <29450, 49653, 62398, 19778>
int to long sign ext (lower): <-330723718, 654137123>
int to long sign ext (upper): <666254210, -764101589>
int to long zero ext (lower): <3964243578, 654137123>
int to long zero ext (upper): <666254210, 3530865707>
uint to ulong sign ext (lower): <1734002338, 80703557>
uint to ulong sign ext (upper): <1326853359, 991892688>
uint to ulong zero ext (lower): <1734002338, 80703557>
uint to ulong zero ext (upper): <1326853359, 991892688>

emitted code check:

> wa-info -v -d -f TestExtConv src/mono/sample/wasm/console-node/bin/Release/AppBundle/dotnet.native.wasm|grep SIMD|egrep 'ext'
i16x8.extend.low.i8x16.s [SIMD]
i16x8.extend.high.i8x16.s [SIMD]
i16x8.extend.low.i8x16.u [SIMD]
i16x8.extend.low.i8x16.u [SIMD]
i16x8.extend.low.i8x16.s [SIMD]
i16x8.extend.high.i8x16.s [SIMD]
i16x8.extend.low.i8x16.u [SIMD]
i16x8.extend.low.i8x16.u [SIMD]
i32x4.extend.low.i16x8.s [SIMD]
i32x4.extend.high.i16x8.s [SIMD]
i32x4.extend.low.i16x8.u [SIMD]
i32x4.extend.low.i16x8.u [SIMD]
i32x4.extend.low.i16x8.s [SIMD]
i32x4.extend.high.i16x8.s [SIMD]
i32x4.extend.low.i16x8.u [SIMD]
i32x4.extend.low.i16x8.u [SIMD]
i64x2.extend.low.i32x4.s [SIMD]
i64x2.extend.high.i32x4.s [SIMD]
i64x2.extend.low.i32x4.u [SIMD]
i64x2.extend.low.i32x4.u [SIMD]
i64x2.extend.low.i32x4.s [SIMD]
i64x2.extend.high.i32x4.s [SIMD]
i64x2.extend.low.i32x4.u [SIMD]
i64x2.extend.low.i32x4.u [SIMD]

vargaz
vargaz reviewed May 15, 2023
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Comment threadsrc/mono/mono/mini/mini-llvm.c Outdated
@radekdoulik

radekdoulik commented May 15, 2023

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Looks like the SN_ZeroExtendWideningUpper is either not emitted right or reported wrong by wa-info, I will look into that.

@build-analysisbuild-analysisBot mentioned this pull request May 15, 2023
Closed
@radekdoulik

radekdoulik commented May 15, 2023

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Looks like the SN_ZeroExtendWideningUpper is either not emitted right or reported wrong by wa-info, I will look into that.

Looks like llvm is optimizing the code to use i16x8.extend.low.i8x16.u instead of i16x8.extend.high.i8x16.u. Not sure why. The actual output is right though.

The "optimized" code:

...
i8x16.shuffle 0x00000000000000000f0e0d0c0b0a0908 [SIMD]
i16x8.extend.low.i8x16.u [SIMD]
...

@radekdoulik
radekdoulik merged commit c887bc7 into dotnet:mainMay 15, 2023
@ghostghost locked as resolved and limited conversation to collaborators Jun 15, 2023
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@radekdoulik@vargaz
, '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" + '

Skip to content
[wasm] Add extending conversions to PackedSimd - #86252
Merged
radekdoulik merged 2 commits into
dotnet:mainfrom 
radekdoulik:pr-wasm-packed-simd-ext-conversions
May 15, 2023
Merged
[wasm] Add extending conversions to PackedSimd#86252
radekdoulik merged 2 commits into
dotnet:mainfrom 
radekdoulik:pr-wasm-packed-simd-ext-conversions
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@radekdoulikradekdoulik
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May 15, 2023

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@ghost
ghost
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May 15, 2023

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Note regarding the new-api-needs-documentation label:
This serves as a reminder for when your PR is modifying a ref *.cs file and adding/modifying public APIs, please make sure the API implementation in the src *.cs file is documented with triple slash comments, so the PR reviewers can sign off that change.
@radekdoulik
radekdoulik
requested a review
from lewingMay 15, 2023 15:09
@ghost
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Tagging subscribers to this area: @dotnet/area-system-runtime-intrinsics

See info in area-owners.md if you want to be subscribed.
Issue Details
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Author:radekdoulik
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Labels:
area-System.Runtime.Intrinsics, new-api-needs-documentation
Milestone:-
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Test method:
 static void TestExtConversions()
{
Vector128<int> v1int = Vector128.Create(RandomInt, RandomInt, RandomInt, RandomInt);
Vector128<uint> v1uint = Vector128.Create((uint)Random.Shared.Next(), (uint)Random.Shared.Next(), (uint)Random.Shared.Next(), (uint)Random.Shared.Next());
Vector128<byte> v1byte = Vector128.Create(0, (byte)Random.Shared.Next(), (byte)Random.Shared.Next(), (byte)Random.Shared.Next(), (byte)Random.Shared.Next(), (byte)Random.Shared.Next(), (byte)Random.Shared.Next(), (byte)Random.Shared.Next(), (byte)Random.Shared.Next(), (byte)Random.Shared.Next(), (byte)Random.Shared.Next(), (byte)Random.Shared.Next(), (byte)Random.Shared.Next(), (byte)Random.Shared.Next(), (byte)Random.Shared.Next(), (byte)Random.Shared.Next());
Vector128<sbyte> v1sbyte = Vector128.Create(RandomSByte, RandomSByte, RandomSByte, RandomSByte, RandomSByte, RandomSByte, RandomSByte, RandomSByte, RandomSByte, RandomSByte, RandomSByte, RandomSByte, RandomSByte, RandomSByte, RandomSByte, RandomSByte);
Vector128<short> v1short = Vector128.Create(RandomShort, RandomShort, RandomShort, RandomShort, RandomShort, RandomShort, RandomShort, RandomShort);
Vector128<ushort> v1ushort = Vector128.Create((ushort)Random.Shared.Next(), (ushort)Random.Shared.Next(), (ushort)Random.Shared.Next(), (ushort)Random.Shared.Next(), (ushort)Random.Shared.Next(), (ushort)Random.Shared.Next(), (ushort)Random.Shared.Next(), (ushort)Random.Shared.Next());
Console.WriteLine($"v1sbyte: {v1sbyte}");
Console.WriteLine($"v1byte: {v1byte}");
Console.WriteLine($"v1short: {v1short}");
Console.WriteLine($"v1ushort: {v1ushort}");
Console.WriteLine($"v1int: {v1int}");
Console.WriteLine($"v1uint: {v1uint}");
Console.WriteLine($"sbyte to short sign ext (lower): {PackedSimd.SignExtendWideningLower(v1sbyte)}");
Console.WriteLine($"sbyte to short sign ext (upper): {PackedSimd.SignExtendWideningUpper(v1sbyte)}");
Console.WriteLine($"sbyte to short zero ext (lower): {PackedSimd.ZeroExtendWideningLower(v1sbyte)}");
Console.WriteLine($"sbyte to short zero ext (upper): {PackedSimd.ZeroExtendWideningUpper(v1sbyte)}");
Console.WriteLine($"byte to ushort sign ext (lower): {PackedSimd.SignExtendWideningLower(v1byte)}");
Console.WriteLine($"byte to ushort sign ext (upper): {PackedSimd.SignExtendWideningUpper(v1byte)}");
Console.WriteLine($"byte to ushort zero ext (lower): {PackedSimd.ZeroExtendWideningLower(v1byte)}");
Console.WriteLine($"byte to ushort zero ext (upper): {PackedSimd.ZeroExtendWideningUpper(v1byte)}");
Console.WriteLine($"short to int sign ext (lower): {PackedSimd.SignExtendWideningLower(v1short)}");
Console.WriteLine($"short to int sign ext (upper): {PackedSimd.SignExtendWideningUpper(v1short)}");
Console.WriteLine($"short to int zero ext (lower): {PackedSimd.ZeroExtendWideningLower(v1short)}");
Console.WriteLine($"short to int zero ext (upper): {PackedSimd.ZeroExtendWideningUpper(v1short)}");
Console.WriteLine($"ushort to uint sign ext (lower): {PackedSimd.SignExtendWideningLower(v1ushort)}");
Console.WriteLine($"ushort to uint sign ext (upper): {PackedSimd.SignExtendWideningUpper(v1ushort)}");
Console.WriteLine($"ushort to uint zero ext (lower): {PackedSimd.ZeroExtendWideningLower(v1ushort)}");
Console.WriteLine($"ushort to uint zero ext (upper): {PackedSimd.ZeroExtendWideningUpper(v1ushort)}");
Console.WriteLine($"int to long sign ext (lower): {PackedSimd.SignExtendWideningLower(v1int)}");
Console.WriteLine($"int to long sign ext (upper): {PackedSimd.SignExtendWideningUpper(v1int)}");
Console.WriteLine($"int to long zero ext (lower): {PackedSimd.ZeroExtendWideningLower(v1int)}");
Console.WriteLine($"int to long zero ext (upper): {PackedSimd.ZeroExtendWideningUpper(v1int)}");
Console.WriteLine($"uint to ulong sign ext (lower): {PackedSimd.SignExtendWideningLower(v1uint)}");
Console.WriteLine($"uint to ulong sign ext (upper): {PackedSimd.SignExtendWideningUpper(v1uint)}");
Console.WriteLine($"uint to ulong zero ext (lower): {PackedSimd.ZeroExtendWideningLower(v1uint)}");
Console.WriteLine($"uint to ulong zero ext (upper): {PackedSimd.ZeroExtendWideningUpper(v1uint)}");
}

output:
 v1sbyte: <-2, -25, 81, 85, 94, -114, -46, 18, 1, -66, 46, -73, 76, -4, 124, 88>
v1byte: <0, 229, 13, 234, 228, 107, 238, 119, 4, 190, 183, 84, 87, 127, 46, 135>
v1short: <-21942, 12726, -31745, -3459, 11206, -25452, 15233, -19319>
v1ushort: <58688, 38751, 4831, 63651, 29450, 49653, 62398, 19778>
v1int: <-330723718, 654137123, 666254210, -764101589>
v1uint: <1734002338, 80703557, 1326853359, 991892688>
sbyte to short sign ext (lower): <-2, -25, 81, 85, 94, -114, -46, 18>
sbyte to short sign ext (upper): <1, -66, 46, -73, 76, -4, 124, 88>
sbyte to short zero ext (lower): <254, 231, 81, 85, 94, 142, 210, 18>
sbyte to short zero ext (upper): <1, 190, 46, 183, 76, 252, 124, 88>
byte to ushort sign ext (lower): <0, 65509, 13, 65514, 65508, 107, 65518, 119>
byte to ushort sign ext (upper): <4, 65470, 65463, 84, 87, 127, 46, 65415>
byte to ushort zero ext (lower): <0, 229, 13, 234, 228, 107, 238, 119>
byte to ushort zero ext (upper): <4, 190, 183, 84, 87, 127, 46, 135>
short to int sign ext (lower): <-21942, 12726, -31745, -3459>
short to int sign ext (upper): <11206, -25452, 15233, -19319>
short to int zero ext (lower): <43594, 12726, 33791, 62077>
short to int zero ext (upper): <11206, 40084, 15233, 46217>
ushort to uint sign ext (lower): <4294960448, 4294940511, 4831, 4294965411>
ushort to uint sign ext (upper): <29450, 4294951413, 4294964158, 19778>
ushort to uint zero ext (lower): <58688, 38751, 4831, 63651>
ushort to uint zero ext (upper): <29450, 49653, 62398, 19778>
int to long sign ext (lower): <-330723718, 654137123>
int to long sign ext (upper): <666254210, -764101589>
int to long zero ext (lower): <3964243578, 654137123>
int to long zero ext (upper): <666254210, 3530865707>
uint to ulong sign ext (lower): <1734002338, 80703557>
uint to ulong sign ext (upper): <1326853359, 991892688>
uint to ulong zero ext (lower): <1734002338, 80703557>
uint to ulong zero ext (upper): <1326853359, 991892688>

emitted code check:
> wa-info -v -d -f TestExtConv src/mono/sample/wasm/console-node/bin/Release/AppBundle/dotnet.native.wasm|grep SIMD|egrep 'ext'
i16x8.extend.low.i8x16.s [SIMD]
i16x8.extend.high.i8x16.s [SIMD]
i16x8.extend.low.i8x16.u [SIMD]
i16x8.extend.low.i8x16.u [SIMD]
i16x8.extend.low.i8x16.s [SIMD]
i16x8.extend.high.i8x16.s [SIMD]
i16x8.extend.low.i8x16.u [SIMD]
i16x8.extend.low.i8x16.u [SIMD]
i32x4.extend.low.i16x8.s [SIMD]
i32x4.extend.high.i16x8.s [SIMD]
i32x4.extend.low.i16x8.u [SIMD]
i32x4.extend.low.i16x8.u [SIMD]
i32x4.extend.low.i16x8.s [SIMD]
i32x4.extend.high.i16x8.s [SIMD]
i32x4.extend.low.i16x8.u [SIMD]
i32x4.extend.low.i16x8.u [SIMD]
i64x2.extend.low.i32x4.s [SIMD]
i64x2.extend.high.i32x4.s [SIMD]
i64x2.extend.low.i32x4.u [SIMD]
i64x2.extend.low.i32x4.u [SIMD]
i64x2.extend.low.i32x4.s [SIMD]
i64x2.extend.high.i32x4.s [SIMD]
i64x2.extend.low.i32x4.u [SIMD]
i64x2.extend.low.i32x4.u [SIMD]

vargaz
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May 15, 2023
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Comment threadsrc/mono/mono/mini/mini-llvm.c
Outdated

@radekdoulik
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May 15, 2023

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Looks like the SN_ZeroExtendWideningUpper is either not emitted right or reported wrong by wa-info, I will look into that.
@build-analysisbuild-analysisBot
mentioned this pull request
May 15, 2023

Closed

@radekdoulik
radekdoulik
commented
May 15, 2023

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MemberAuthor
Looks like the SN_ZeroExtendWideningUpper is either not emitted right or reported wrong by wa-info, I will look into that.
Looks like llvm is optimizing the code to use i16x8.extend.low.i8x16.u instead of i16x8.extend.high.i8x16.u. Not sure why. The actual output is right though.
The "optimized" code:
...
i8x16.shuffle 0x00000000000000000f0e0d0c0b0a0908 [SIMD]
i16x8.extend.low.i8x16.u [SIMD]
...

@radekdoulik
radekdoulik
merged commit c887bc7
into
dotnet:mainMay 15, 2023
@ghostghost
locked as resolved and limited conversation to collaborators
Jun 15, 2023
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Sign in.


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@lambdageeklambdageekAwaiting requested review from lambdageek
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@lewinglewingAwaiting requested review from lewing

1 more reviewer

@vargazvargazvargaz approved these changes
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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('^' + ".*" + '

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[wasm] Add extending conversions to PackedSimd - #86252
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radekdoulik merged 2 commits into
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radekdoulik:pr-wasm-packed-simd-ext-conversions
May 15, 2023
Merged
[wasm] Add extending conversions to PackedSimd#86252
radekdoulik merged 2 commits into
dotnet:mainfrom 
radekdoulik:pr-wasm-packed-simd-ext-conversions
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Note regarding the new-api-needs-documentation label:
This serves as a reminder for when your PR is modifying a ref *.cs file and adding/modifying public APIs, please make sure the API implementation in the src *.cs file is documented with triple slash comments, so the PR reviewers can sign off that change.
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Test method:
 static void TestExtConversions()
{
Vector128<int> v1int = Vector128.Create(RandomInt, RandomInt, RandomInt, RandomInt);
Vector128<uint> v1uint = Vector128.Create((uint)Random.Shared.Next(), (uint)Random.Shared.Next(), (uint)Random.Shared.Next(), (uint)Random.Shared.Next());
Vector128<byte> v1byte = Vector128.Create(0, (byte)Random.Shared.Next(), (byte)Random.Shared.Next(), (byte)Random.Shared.Next(), (byte)Random.Shared.Next(), (byte)Random.Shared.Next(), (byte)Random.Shared.Next(), (byte)Random.Shared.Next(), (byte)Random.Shared.Next(), (byte)Random.Shared.Next(), (byte)Random.Shared.Next(), (byte)Random.Shared.Next(), (byte)Random.Shared.Next(), (byte)Random.Shared.Next(), (byte)Random.Shared.Next(), (byte)Random.Shared.Next());
Vector128<sbyte> v1sbyte = Vector128.Create(RandomSByte, RandomSByte, RandomSByte, RandomSByte, RandomSByte, RandomSByte, RandomSByte, RandomSByte, RandomSByte, RandomSByte, RandomSByte, RandomSByte, RandomSByte, RandomSByte, RandomSByte, RandomSByte);
Vector128<short> v1short = Vector128.Create(RandomShort, RandomShort, RandomShort, RandomShort, RandomShort, RandomShort, RandomShort, RandomShort);
Vector128<ushort> v1ushort = Vector128.Create((ushort)Random.Shared.Next(), (ushort)Random.Shared.Next(), (ushort)Random.Shared.Next(), (ushort)Random.Shared.Next(), (ushort)Random.Shared.Next(), (ushort)Random.Shared.Next(), (ushort)Random.Shared.Next(), (ushort)Random.Shared.Next());
Console.WriteLine($"v1sbyte: {v1sbyte}");
Console.WriteLine($"v1byte: {v1byte}");
Console.WriteLine($"v1short: {v1short}");
Console.WriteLine($"v1ushort: {v1ushort}");
Console.WriteLine($"v1int: {v1int}");
Console.WriteLine($"v1uint: {v1uint}");
Console.WriteLine($"sbyte to short sign ext (lower): {PackedSimd.SignExtendWideningLower(v1sbyte)}");
Console.WriteLine($"sbyte to short sign ext (upper): {PackedSimd.SignExtendWideningUpper(v1sbyte)}");
Console.WriteLine($"sbyte to short zero ext (lower): {PackedSimd.ZeroExtendWideningLower(v1sbyte)}");
Console.WriteLine($"sbyte to short zero ext (upper): {PackedSimd.ZeroExtendWideningUpper(v1sbyte)}");
Console.WriteLine($"byte to ushort sign ext (lower): {PackedSimd.SignExtendWideningLower(v1byte)}");
Console.WriteLine($"byte to ushort sign ext (upper): {PackedSimd.SignExtendWideningUpper(v1byte)}");
Console.WriteLine($"byte to ushort zero ext (lower): {PackedSimd.ZeroExtendWideningLower(v1byte)}");
Console.WriteLine($"byte to ushort zero ext (upper): {PackedSimd.ZeroExtendWideningUpper(v1byte)}");
Console.WriteLine($"short to int sign ext (lower): {PackedSimd.SignExtendWideningLower(v1short)}");
Console.WriteLine($"short to int sign ext (upper): {PackedSimd.SignExtendWideningUpper(v1short)}");
Console.WriteLine($"short to int zero ext (lower): {PackedSimd.ZeroExtendWideningLower(v1short)}");
Console.WriteLine($"short to int zero ext (upper): {PackedSimd.ZeroExtendWideningUpper(v1short)}");
Console.WriteLine($"ushort to uint sign ext (lower): {PackedSimd.SignExtendWideningLower(v1ushort)}");
Console.WriteLine($"ushort to uint sign ext (upper): {PackedSimd.SignExtendWideningUpper(v1ushort)}");
Console.WriteLine($"ushort to uint zero ext (lower): {PackedSimd.ZeroExtendWideningLower(v1ushort)}");
Console.WriteLine($"ushort to uint zero ext (upper): {PackedSimd.ZeroExtendWideningUpper(v1ushort)}");
Console.WriteLine($"int to long sign ext (lower): {PackedSimd.SignExtendWideningLower(v1int)}");
Console.WriteLine($"int to long sign ext (upper): {PackedSimd.SignExtendWideningUpper(v1int)}");
Console.WriteLine($"int to long zero ext (lower): {PackedSimd.ZeroExtendWideningLower(v1int)}");
Console.WriteLine($"int to long zero ext (upper): {PackedSimd.ZeroExtendWideningUpper(v1int)}");
Console.WriteLine($"uint to ulong sign ext (lower): {PackedSimd.SignExtendWideningLower(v1uint)}");
Console.WriteLine($"uint to ulong sign ext (upper): {PackedSimd.SignExtendWideningUpper(v1uint)}");
Console.WriteLine($"uint to ulong zero ext (lower): {PackedSimd.ZeroExtendWideningLower(v1uint)}");
Console.WriteLine($"uint to ulong zero ext (upper): {PackedSimd.ZeroExtendWideningUpper(v1uint)}");
}

output:
 v1sbyte: <-2, -25, 81, 85, 94, -114, -46, 18, 1, -66, 46, -73, 76, -4, 124, 88>
v1byte: <0, 229, 13, 234, 228, 107, 238, 119, 4, 190, 183, 84, 87, 127, 46, 135>
v1short: <-21942, 12726, -31745, -3459, 11206, -25452, 15233, -19319>
v1ushort: <58688, 38751, 4831, 63651, 29450, 49653, 62398, 19778>
v1int: <-330723718, 654137123, 666254210, -764101589>
v1uint: <1734002338, 80703557, 1326853359, 991892688>
sbyte to short sign ext (lower): <-2, -25, 81, 85, 94, -114, -46, 18>
sbyte to short sign ext (upper): <1, -66, 46, -73, 76, -4, 124, 88>
sbyte to short zero ext (lower): <254, 231, 81, 85, 94, 142, 210, 18>
sbyte to short zero ext (upper): <1, 190, 46, 183, 76, 252, 124, 88>
byte to ushort sign ext (lower): <0, 65509, 13, 65514, 65508, 107, 65518, 119>
byte to ushort sign ext (upper): <4, 65470, 65463, 84, 87, 127, 46, 65415>
byte to ushort zero ext (lower): <0, 229, 13, 234, 228, 107, 238, 119>
byte to ushort zero ext (upper): <4, 190, 183, 84, 87, 127, 46, 135>
short to int sign ext (lower): <-21942, 12726, -31745, -3459>
short to int sign ext (upper): <11206, -25452, 15233, -19319>
short to int zero ext (lower): <43594, 12726, 33791, 62077>
short to int zero ext (upper): <11206, 40084, 15233, 46217>
ushort to uint sign ext (lower): <4294960448, 4294940511, 4831, 4294965411>
ushort to uint sign ext (upper): <29450, 4294951413, 4294964158, 19778>
ushort to uint zero ext (lower): <58688, 38751, 4831, 63651>
ushort to uint zero ext (upper): <29450, 49653, 62398, 19778>
int to long sign ext (lower): <-330723718, 654137123>
int to long sign ext (upper): <666254210, -764101589>
int to long zero ext (lower): <3964243578, 654137123>
int to long zero ext (upper): <666254210, 3530865707>
uint to ulong sign ext (lower): <1734002338, 80703557>
uint to ulong sign ext (upper): <1326853359, 991892688>
uint to ulong zero ext (lower): <1734002338, 80703557>
uint to ulong zero ext (upper): <1326853359, 991892688>

emitted code check:
> wa-info -v -d -f TestExtConv src/mono/sample/wasm/console-node/bin/Release/AppBundle/dotnet.native.wasm|grep SIMD|egrep 'ext'
i16x8.extend.low.i8x16.s [SIMD]
i16x8.extend.high.i8x16.s [SIMD]
i16x8.extend.low.i8x16.u [SIMD]
i16x8.extend.low.i8x16.u [SIMD]
i16x8.extend.low.i8x16.s [SIMD]
i16x8.extend.high.i8x16.s [SIMD]
i16x8.extend.low.i8x16.u [SIMD]
i16x8.extend.low.i8x16.u [SIMD]
i32x4.extend.low.i16x8.s [SIMD]
i32x4.extend.high.i16x8.s [SIMD]
i32x4.extend.low.i16x8.u [SIMD]
i32x4.extend.low.i16x8.u [SIMD]
i32x4.extend.low.i16x8.s [SIMD]
i32x4.extend.high.i16x8.s [SIMD]
i32x4.extend.low.i16x8.u [SIMD]
i32x4.extend.low.i16x8.u [SIMD]
i64x2.extend.low.i32x4.s [SIMD]
i64x2.extend.high.i32x4.s [SIMD]
i64x2.extend.low.i32x4.u [SIMD]
i64x2.extend.low.i32x4.u [SIMD]
i64x2.extend.low.i32x4.s [SIMD]
i64x2.extend.high.i32x4.s [SIMD]
i64x2.extend.low.i32x4.u [SIMD]
i64x2.extend.low.i32x4.u [SIMD]

vargaz
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May 15, 2023
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Comment threadsrc/mono/mono/mini/mini-llvm.c
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Looks like the SN_ZeroExtendWideningUpper is either not emitted right or reported wrong by wa-info, I will look into that.
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May 15, 2023

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@radekdoulik
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Looks like the SN_ZeroExtendWideningUpper is either not emitted right or reported wrong by wa-info, I will look into that.
Looks like llvm is optimizing the code to use i16x8.extend.low.i8x16.u instead of i16x8.extend.high.i8x16.u. Not sure why. The actual output is right though.
The "optimized" code:
...
i8x16.shuffle 0x00000000000000000f0e0d0c0b0a0908 [SIMD]
i16x8.extend.low.i8x16.u [SIMD]
...

@radekdoulik
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dotnet:mainMay 15, 2023
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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('^' + ".*" + '

Skip to content
[wasm] Add extending conversions to PackedSimd - #86252
Merged
radekdoulik merged 2 commits into
dotnet:mainfrom 
radekdoulik:pr-wasm-packed-simd-ext-conversions
May 15, 2023
Merged
[wasm] Add extending conversions to PackedSimd#86252
radekdoulik merged 2 commits into
dotnet:mainfrom 
radekdoulik:pr-wasm-packed-simd-ext-conversions
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Note regarding the new-api-needs-documentation label:
This serves as a reminder for when your PR is modifying a ref *.cs file and adding/modifying public APIs, please make sure the API implementation in the src *.cs file is documented with triple slash comments, so the PR reviewers can sign off that change.
@radekdoulik
radekdoulik
requested a review
from lewingMay 15, 2023 15:09
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Tagging subscribers to this area: @dotnet/area-system-runtime-intrinsics

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Author:radekdoulik
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Test method:
 static void TestExtConversions()
{
Vector128<int> v1int = Vector128.Create(RandomInt, RandomInt, RandomInt, RandomInt);
Vector128<uint> v1uint = Vector128.Create((uint)Random.Shared.Next(), (uint)Random.Shared.Next(), (uint)Random.Shared.Next(), (uint)Random.Shared.Next());
Vector128<byte> v1byte = Vector128.Create(0, (byte)Random.Shared.Next(), (byte)Random.Shared.Next(), (byte)Random.Shared.Next(), (byte)Random.Shared.Next(), (byte)Random.Shared.Next(), (byte)Random.Shared.Next(), (byte)Random.Shared.Next(), (byte)Random.Shared.Next(), (byte)Random.Shared.Next(), (byte)Random.Shared.Next(), (byte)Random.Shared.Next(), (byte)Random.Shared.Next(), (byte)Random.Shared.Next(), (byte)Random.Shared.Next(), (byte)Random.Shared.Next());
Vector128<sbyte> v1sbyte = Vector128.Create(RandomSByte, RandomSByte, RandomSByte, RandomSByte, RandomSByte, RandomSByte, RandomSByte, RandomSByte, RandomSByte, RandomSByte, RandomSByte, RandomSByte, RandomSByte, RandomSByte, RandomSByte, RandomSByte);
Vector128<short> v1short = Vector128.Create(RandomShort, RandomShort, RandomShort, RandomShort, RandomShort, RandomShort, RandomShort, RandomShort);
Vector128<ushort> v1ushort = Vector128.Create((ushort)Random.Shared.Next(), (ushort)Random.Shared.Next(), (ushort)Random.Shared.Next(), (ushort)Random.Shared.Next(), (ushort)Random.Shared.Next(), (ushort)Random.Shared.Next(), (ushort)Random.Shared.Next(), (ushort)Random.Shared.Next());
Console.WriteLine($"v1sbyte: {v1sbyte}");
Console.WriteLine($"v1byte: {v1byte}");
Console.WriteLine($"v1short: {v1short}");
Console.WriteLine($"v1ushort: {v1ushort}");
Console.WriteLine($"v1int: {v1int}");
Console.WriteLine($"v1uint: {v1uint}");
Console.WriteLine($"sbyte to short sign ext (lower): {PackedSimd.SignExtendWideningLower(v1sbyte)}");
Console.WriteLine($"sbyte to short sign ext (upper): {PackedSimd.SignExtendWideningUpper(v1sbyte)}");
Console.WriteLine($"sbyte to short zero ext (lower): {PackedSimd.ZeroExtendWideningLower(v1sbyte)}");
Console.WriteLine($"sbyte to short zero ext (upper): {PackedSimd.ZeroExtendWideningUpper(v1sbyte)}");
Console.WriteLine($"byte to ushort sign ext (lower): {PackedSimd.SignExtendWideningLower(v1byte)}");
Console.WriteLine($"byte to ushort sign ext (upper): {PackedSimd.SignExtendWideningUpper(v1byte)}");
Console.WriteLine($"byte to ushort zero ext (lower): {PackedSimd.ZeroExtendWideningLower(v1byte)}");
Console.WriteLine($"byte to ushort zero ext (upper): {PackedSimd.ZeroExtendWideningUpper(v1byte)}");
Console.WriteLine($"short to int sign ext (lower): {PackedSimd.SignExtendWideningLower(v1short)}");
Console.WriteLine($"short to int sign ext (upper): {PackedSimd.SignExtendWideningUpper(v1short)}");
Console.WriteLine($"short to int zero ext (lower): {PackedSimd.ZeroExtendWideningLower(v1short)}");
Console.WriteLine($"short to int zero ext (upper): {PackedSimd.ZeroExtendWideningUpper(v1short)}");
Console.WriteLine($"ushort to uint sign ext (lower): {PackedSimd.SignExtendWideningLower(v1ushort)}");
Console.WriteLine($"ushort to uint sign ext (upper): {PackedSimd.SignExtendWideningUpper(v1ushort)}");
Console.WriteLine($"ushort to uint zero ext (lower): {PackedSimd.ZeroExtendWideningLower(v1ushort)}");
Console.WriteLine($"ushort to uint zero ext (upper): {PackedSimd.ZeroExtendWideningUpper(v1ushort)}");
Console.WriteLine($"int to long sign ext (lower): {PackedSimd.SignExtendWideningLower(v1int)}");
Console.WriteLine($"int to long sign ext (upper): {PackedSimd.SignExtendWideningUpper(v1int)}");
Console.WriteLine($"int to long zero ext (lower): {PackedSimd.ZeroExtendWideningLower(v1int)}");
Console.WriteLine($"int to long zero ext (upper): {PackedSimd.ZeroExtendWideningUpper(v1int)}");
Console.WriteLine($"uint to ulong sign ext (lower): {PackedSimd.SignExtendWideningLower(v1uint)}");
Console.WriteLine($"uint to ulong sign ext (upper): {PackedSimd.SignExtendWideningUpper(v1uint)}");
Console.WriteLine($"uint to ulong zero ext (lower): {PackedSimd.ZeroExtendWideningLower(v1uint)}");
Console.WriteLine($"uint to ulong zero ext (upper): {PackedSimd.ZeroExtendWideningUpper(v1uint)}");
}

output:
 v1sbyte: <-2, -25, 81, 85, 94, -114, -46, 18, 1, -66, 46, -73, 76, -4, 124, 88>
v1byte: <0, 229, 13, 234, 228, 107, 238, 119, 4, 190, 183, 84, 87, 127, 46, 135>
v1short: <-21942, 12726, -31745, -3459, 11206, -25452, 15233, -19319>
v1ushort: <58688, 38751, 4831, 63651, 29450, 49653, 62398, 19778>
v1int: <-330723718, 654137123, 666254210, -764101589>
v1uint: <1734002338, 80703557, 1326853359, 991892688>
sbyte to short sign ext (lower): <-2, -25, 81, 85, 94, -114, -46, 18>
sbyte to short sign ext (upper): <1, -66, 46, -73, 76, -4, 124, 88>
sbyte to short zero ext (lower): <254, 231, 81, 85, 94, 142, 210, 18>
sbyte to short zero ext (upper): <1, 190, 46, 183, 76, 252, 124, 88>
byte to ushort sign ext (lower): <0, 65509, 13, 65514, 65508, 107, 65518, 119>
byte to ushort sign ext (upper): <4, 65470, 65463, 84, 87, 127, 46, 65415>
byte to ushort zero ext (lower): <0, 229, 13, 234, 228, 107, 238, 119>
byte to ushort zero ext (upper): <4, 190, 183, 84, 87, 127, 46, 135>
short to int sign ext (lower): <-21942, 12726, -31745, -3459>
short to int sign ext (upper): <11206, -25452, 15233, -19319>
short to int zero ext (lower): <43594, 12726, 33791, 62077>
short to int zero ext (upper): <11206, 40084, 15233, 46217>
ushort to uint sign ext (lower): <4294960448, 4294940511, 4831, 4294965411>
ushort to uint sign ext (upper): <29450, 4294951413, 4294964158, 19778>
ushort to uint zero ext (lower): <58688, 38751, 4831, 63651>
ushort to uint zero ext (upper): <29450, 49653, 62398, 19778>
int to long sign ext (lower): <-330723718, 654137123>
int to long sign ext (upper): <666254210, -764101589>
int to long zero ext (lower): <3964243578, 654137123>
int to long zero ext (upper): <666254210, 3530865707>
uint to ulong sign ext (lower): <1734002338, 80703557>
uint to ulong sign ext (upper): <1326853359, 991892688>
uint to ulong zero ext (lower): <1734002338, 80703557>
uint to ulong zero ext (upper): <1326853359, 991892688>

emitted code check:
> wa-info -v -d -f TestExtConv src/mono/sample/wasm/console-node/bin/Release/AppBundle/dotnet.native.wasm|grep SIMD|egrep 'ext'
i16x8.extend.low.i8x16.s [SIMD]
i16x8.extend.high.i8x16.s [SIMD]
i16x8.extend.low.i8x16.u [SIMD]
i16x8.extend.low.i8x16.u [SIMD]
i16x8.extend.low.i8x16.s [SIMD]
i16x8.extend.high.i8x16.s [SIMD]
i16x8.extend.low.i8x16.u [SIMD]
i16x8.extend.low.i8x16.u [SIMD]
i32x4.extend.low.i16x8.s [SIMD]
i32x4.extend.high.i16x8.s [SIMD]
i32x4.extend.low.i16x8.u [SIMD]
i32x4.extend.low.i16x8.u [SIMD]
i32x4.extend.low.i16x8.s [SIMD]
i32x4.extend.high.i16x8.s [SIMD]
i32x4.extend.low.i16x8.u [SIMD]
i32x4.extend.low.i16x8.u [SIMD]
i64x2.extend.low.i32x4.s [SIMD]
i64x2.extend.high.i32x4.s [SIMD]
i64x2.extend.low.i32x4.u [SIMD]
i64x2.extend.low.i32x4.u [SIMD]
i64x2.extend.low.i32x4.s [SIMD]
i64x2.extend.high.i32x4.s [SIMD]
i64x2.extend.low.i32x4.u [SIMD]
i64x2.extend.low.i32x4.u [SIMD]

vargaz
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Comment threadsrc/mono/mono/mini/mini-llvm.c
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Looks like the SN_ZeroExtendWideningUpper is either not emitted right or reported wrong by wa-info, I will look into that.
@build-analysisbuild-analysisBot
mentioned this pull request
May 15, 2023

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@radekdoulik
radekdoulik
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May 15, 2023

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Looks like the SN_ZeroExtendWideningUpper is either not emitted right or reported wrong by wa-info, I will look into that.
Looks like llvm is optimizing the code to use i16x8.extend.low.i8x16.u instead of i16x8.extend.high.i8x16.u. Not sure why. The actual output is right though.
The "optimized" code:
...
i8x16.shuffle 0x00000000000000000f0e0d0c0b0a0908 [SIMD]
i16x8.extend.low.i8x16.u [SIMD]
...

@radekdoulik
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merged commit c887bc7
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dotnet:mainMay 15, 2023
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@lambdageeklambdageekAwaiting requested review from lambdageek
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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" + '

Skip to content
[wasm] Add extending conversions to PackedSimd - #86252
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radekdoulik merged 2 commits into
dotnet:mainfrom 
radekdoulik:pr-wasm-packed-simd-ext-conversions
May 15, 2023
Merged
[wasm] Add extending conversions to PackedSimd#86252
radekdoulik merged 2 commits into
dotnet:mainfrom 
radekdoulik:pr-wasm-packed-simd-ext-conversions
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Note regarding the new-api-needs-documentation label:
This serves as a reminder for when your PR is modifying a ref *.cs file and adding/modifying public APIs, please make sure the API implementation in the src *.cs file is documented with triple slash comments, so the PR reviewers can sign off that change.
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Issue Details
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Test method:
 static void TestExtConversions()
{
Vector128<int> v1int = Vector128.Create(RandomInt, RandomInt, RandomInt, RandomInt);
Vector128<uint> v1uint = Vector128.Create((uint)Random.Shared.Next(), (uint)Random.Shared.Next(), (uint)Random.Shared.Next(), (uint)Random.Shared.Next());
Vector128<byte> v1byte = Vector128.Create(0, (byte)Random.Shared.Next(), (byte)Random.Shared.Next(), (byte)Random.Shared.Next(), (byte)Random.Shared.Next(), (byte)Random.Shared.Next(), (byte)Random.Shared.Next(), (byte)Random.Shared.Next(), (byte)Random.Shared.Next(), (byte)Random.Shared.Next(), (byte)Random.Shared.Next(), (byte)Random.Shared.Next(), (byte)Random.Shared.Next(), (byte)Random.Shared.Next(), (byte)Random.Shared.Next(), (byte)Random.Shared.Next());
Vector128<sbyte> v1sbyte = Vector128.Create(RandomSByte, RandomSByte, RandomSByte, RandomSByte, RandomSByte, RandomSByte, RandomSByte, RandomSByte, RandomSByte, RandomSByte, RandomSByte, RandomSByte, RandomSByte, RandomSByte, RandomSByte, RandomSByte);
Vector128<short> v1short = Vector128.Create(RandomShort, RandomShort, RandomShort, RandomShort, RandomShort, RandomShort, RandomShort, RandomShort);
Vector128<ushort> v1ushort = Vector128.Create((ushort)Random.Shared.Next(), (ushort)Random.Shared.Next(), (ushort)Random.Shared.Next(), (ushort)Random.Shared.Next(), (ushort)Random.Shared.Next(), (ushort)Random.Shared.Next(), (ushort)Random.Shared.Next(), (ushort)Random.Shared.Next());
Console.WriteLine($"v1sbyte: {v1sbyte}");
Console.WriteLine($"v1byte: {v1byte}");
Console.WriteLine($"v1short: {v1short}");
Console.WriteLine($"v1ushort: {v1ushort}");
Console.WriteLine($"v1int: {v1int}");
Console.WriteLine($"v1uint: {v1uint}");
Console.WriteLine($"sbyte to short sign ext (lower): {PackedSimd.SignExtendWideningLower(v1sbyte)}");
Console.WriteLine($"sbyte to short sign ext (upper): {PackedSimd.SignExtendWideningUpper(v1sbyte)}");
Console.WriteLine($"sbyte to short zero ext (lower): {PackedSimd.ZeroExtendWideningLower(v1sbyte)}");
Console.WriteLine($"sbyte to short zero ext (upper): {PackedSimd.ZeroExtendWideningUpper(v1sbyte)}");
Console.WriteLine($"byte to ushort sign ext (lower): {PackedSimd.SignExtendWideningLower(v1byte)}");
Console.WriteLine($"byte to ushort sign ext (upper): {PackedSimd.SignExtendWideningUpper(v1byte)}");
Console.WriteLine($"byte to ushort zero ext (lower): {PackedSimd.ZeroExtendWideningLower(v1byte)}");
Console.WriteLine($"byte to ushort zero ext (upper): {PackedSimd.ZeroExtendWideningUpper(v1byte)}");
Console.WriteLine($"short to int sign ext (lower): {PackedSimd.SignExtendWideningLower(v1short)}");
Console.WriteLine($"short to int sign ext (upper): {PackedSimd.SignExtendWideningUpper(v1short)}");
Console.WriteLine($"short to int zero ext (lower): {PackedSimd.ZeroExtendWideningLower(v1short)}");
Console.WriteLine($"short to int zero ext (upper): {PackedSimd.ZeroExtendWideningUpper(v1short)}");
Console.WriteLine($"ushort to uint sign ext (lower): {PackedSimd.SignExtendWideningLower(v1ushort)}");
Console.WriteLine($"ushort to uint sign ext (upper): {PackedSimd.SignExtendWideningUpper(v1ushort)}");
Console.WriteLine($"ushort to uint zero ext (lower): {PackedSimd.ZeroExtendWideningLower(v1ushort)}");
Console.WriteLine($"ushort to uint zero ext (upper): {PackedSimd.ZeroExtendWideningUpper(v1ushort)}");
Console.WriteLine($"int to long sign ext (lower): {PackedSimd.SignExtendWideningLower(v1int)}");
Console.WriteLine($"int to long sign ext (upper): {PackedSimd.SignExtendWideningUpper(v1int)}");
Console.WriteLine($"int to long zero ext (lower): {PackedSimd.ZeroExtendWideningLower(v1int)}");
Console.WriteLine($"int to long zero ext (upper): {PackedSimd.ZeroExtendWideningUpper(v1int)}");
Console.WriteLine($"uint to ulong sign ext (lower): {PackedSimd.SignExtendWideningLower(v1uint)}");
Console.WriteLine($"uint to ulong sign ext (upper): {PackedSimd.SignExtendWideningUpper(v1uint)}");
Console.WriteLine($"uint to ulong zero ext (lower): {PackedSimd.ZeroExtendWideningLower(v1uint)}");
Console.WriteLine($"uint to ulong zero ext (upper): {PackedSimd.ZeroExtendWideningUpper(v1uint)}");
}

output:
 v1sbyte: <-2, -25, 81, 85, 94, -114, -46, 18, 1, -66, 46, -73, 76, -4, 124, 88>
v1byte: <0, 229, 13, 234, 228, 107, 238, 119, 4, 190, 183, 84, 87, 127, 46, 135>
v1short: <-21942, 12726, -31745, -3459, 11206, -25452, 15233, -19319>
v1ushort: <58688, 38751, 4831, 63651, 29450, 49653, 62398, 19778>
v1int: <-330723718, 654137123, 666254210, -764101589>
v1uint: <1734002338, 80703557, 1326853359, 991892688>
sbyte to short sign ext (lower): <-2, -25, 81, 85, 94, -114, -46, 18>
sbyte to short sign ext (upper): <1, -66, 46, -73, 76, -4, 124, 88>
sbyte to short zero ext (lower): <254, 231, 81, 85, 94, 142, 210, 18>
sbyte to short zero ext (upper): <1, 190, 46, 183, 76, 252, 124, 88>
byte to ushort sign ext (lower): <0, 65509, 13, 65514, 65508, 107, 65518, 119>
byte to ushort sign ext (upper): <4, 65470, 65463, 84, 87, 127, 46, 65415>
byte to ushort zero ext (lower): <0, 229, 13, 234, 228, 107, 238, 119>
byte to ushort zero ext (upper): <4, 190, 183, 84, 87, 127, 46, 135>
short to int sign ext (lower): <-21942, 12726, -31745, -3459>
short to int sign ext (upper): <11206, -25452, 15233, -19319>
short to int zero ext (lower): <43594, 12726, 33791, 62077>
short to int zero ext (upper): <11206, 40084, 15233, 46217>
ushort to uint sign ext (lower): <4294960448, 4294940511, 4831, 4294965411>
ushort to uint sign ext (upper): <29450, 4294951413, 4294964158, 19778>
ushort to uint zero ext (lower): <58688, 38751, 4831, 63651>
ushort to uint zero ext (upper): <29450, 49653, 62398, 19778>
int to long sign ext (lower): <-330723718, 654137123>
int to long sign ext (upper): <666254210, -764101589>
int to long zero ext (lower): <3964243578, 654137123>
int to long zero ext (upper): <666254210, 3530865707>
uint to ulong sign ext (lower): <1734002338, 80703557>
uint to ulong sign ext (upper): <1326853359, 991892688>
uint to ulong zero ext (lower): <1734002338, 80703557>
uint to ulong zero ext (upper): <1326853359, 991892688>

emitted code check:
> wa-info -v -d -f TestExtConv src/mono/sample/wasm/console-node/bin/Release/AppBundle/dotnet.native.wasm|grep SIMD|egrep 'ext'
i16x8.extend.low.i8x16.s [SIMD]
i16x8.extend.high.i8x16.s [SIMD]
i16x8.extend.low.i8x16.u [SIMD]
i16x8.extend.low.i8x16.u [SIMD]
i16x8.extend.low.i8x16.s [SIMD]
i16x8.extend.high.i8x16.s [SIMD]
i16x8.extend.low.i8x16.u [SIMD]
i16x8.extend.low.i8x16.u [SIMD]
i32x4.extend.low.i16x8.s [SIMD]
i32x4.extend.high.i16x8.s [SIMD]
i32x4.extend.low.i16x8.u [SIMD]
i32x4.extend.low.i16x8.u [SIMD]
i32x4.extend.low.i16x8.s [SIMD]
i32x4.extend.high.i16x8.s [SIMD]
i32x4.extend.low.i16x8.u [SIMD]
i32x4.extend.low.i16x8.u [SIMD]
i64x2.extend.low.i32x4.s [SIMD]
i64x2.extend.high.i32x4.s [SIMD]
i64x2.extend.low.i32x4.u [SIMD]
i64x2.extend.low.i32x4.u [SIMD]
i64x2.extend.low.i32x4.s [SIMD]
i64x2.extend.high.i32x4.s [SIMD]
i64x2.extend.low.i32x4.u [SIMD]
i64x2.extend.low.i32x4.u [SIMD]

vargaz
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Comment threadsrc/mono/mono/mini/mini-llvm.c
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Looks like the SN_ZeroExtendWideningUpper is either not emitted right or reported wrong by wa-info, I will look into that.
@build-analysisbuild-analysisBot
mentioned this pull request
May 15, 2023

Closed

@radekdoulik
radekdoulik
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May 15, 2023

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MemberAuthor
Looks like the SN_ZeroExtendWideningUpper is either not emitted right or reported wrong by wa-info, I will look into that.
Looks like llvm is optimizing the code to use i16x8.extend.low.i8x16.u instead of i16x8.extend.high.i8x16.u. Not sure why. The actual output is right though.
The "optimized" code:
...
i8x16.shuffle 0x00000000000000000f0e0d0c0b0a0908 [SIMD]
i16x8.extend.low.i8x16.u [SIMD]
...

@radekdoulik
radekdoulik
merged commit c887bc7
into
dotnet:mainMay 15, 2023
@ghostghost
locked as resolved and limited conversation to collaborators
Jun 15, 2023
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@lambdageeklambdageekAwaiting requested review from lambdageek
@SamMonoRTSamMonoRTAwaiting requested review from SamMonoRT
@lewinglewingAwaiting requested review from lewing

1 more reviewer

@vargazvargazvargaz approved these changes
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, '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('^' + ".*" + '

Skip to content
[wasm] Add extending conversions to PackedSimd - #86252
Merged
radekdoulik merged 2 commits into
dotnet:mainfrom 
radekdoulik:pr-wasm-packed-simd-ext-conversions
May 15, 2023
Merged
[wasm] Add extending conversions to PackedSimd#86252
radekdoulik merged 2 commits into
dotnet:mainfrom 
radekdoulik:pr-wasm-packed-simd-ext-conversions
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@radekdoulik
@radekdoulikradekdoulik
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@ghost
ghost
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Note regarding the new-api-needs-documentation label:
This serves as a reminder for when your PR is modifying a ref *.cs file and adding/modifying public APIs, please make sure the API implementation in the src *.cs file is documented with triple slash comments, so the PR reviewers can sign off that change.
@radekdoulik
radekdoulik
requested a review
from lewingMay 15, 2023 15:09
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Tagging subscribers to this area: @dotnet/area-system-runtime-intrinsics

See info in area-owners.md if you want to be subscribed.
Issue Details
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Author:radekdoulik
Assignees:-
Labels:
area-System.Runtime.Intrinsics, new-api-needs-documentation
Milestone:-
@radekdoulik
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May 15, 2023

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Test method:
 static void TestExtConversions()
{
Vector128<int> v1int = Vector128.Create(RandomInt, RandomInt, RandomInt, RandomInt);
Vector128<uint> v1uint = Vector128.Create((uint)Random.Shared.Next(), (uint)Random.Shared.Next(), (uint)Random.Shared.Next(), (uint)Random.Shared.Next());
Vector128<byte> v1byte = Vector128.Create(0, (byte)Random.Shared.Next(), (byte)Random.Shared.Next(), (byte)Random.Shared.Next(), (byte)Random.Shared.Next(), (byte)Random.Shared.Next(), (byte)Random.Shared.Next(), (byte)Random.Shared.Next(), (byte)Random.Shared.Next(), (byte)Random.Shared.Next(), (byte)Random.Shared.Next(), (byte)Random.Shared.Next(), (byte)Random.Shared.Next(), (byte)Random.Shared.Next(), (byte)Random.Shared.Next(), (byte)Random.Shared.Next());
Vector128<sbyte> v1sbyte = Vector128.Create(RandomSByte, RandomSByte, RandomSByte, RandomSByte, RandomSByte, RandomSByte, RandomSByte, RandomSByte, RandomSByte, RandomSByte, RandomSByte, RandomSByte, RandomSByte, RandomSByte, RandomSByte, RandomSByte);
Vector128<short> v1short = Vector128.Create(RandomShort, RandomShort, RandomShort, RandomShort, RandomShort, RandomShort, RandomShort, RandomShort);
Vector128<ushort> v1ushort = Vector128.Create((ushort)Random.Shared.Next(), (ushort)Random.Shared.Next(), (ushort)Random.Shared.Next(), (ushort)Random.Shared.Next(), (ushort)Random.Shared.Next(), (ushort)Random.Shared.Next(), (ushort)Random.Shared.Next(), (ushort)Random.Shared.Next());
Console.WriteLine($"v1sbyte: {v1sbyte}");
Console.WriteLine($"v1byte: {v1byte}");
Console.WriteLine($"v1short: {v1short}");
Console.WriteLine($"v1ushort: {v1ushort}");
Console.WriteLine($"v1int: {v1int}");
Console.WriteLine($"v1uint: {v1uint}");
Console.WriteLine($"sbyte to short sign ext (lower): {PackedSimd.SignExtendWideningLower(v1sbyte)}");
Console.WriteLine($"sbyte to short sign ext (upper): {PackedSimd.SignExtendWideningUpper(v1sbyte)}");
Console.WriteLine($"sbyte to short zero ext (lower): {PackedSimd.ZeroExtendWideningLower(v1sbyte)}");
Console.WriteLine($"sbyte to short zero ext (upper): {PackedSimd.ZeroExtendWideningUpper(v1sbyte)}");
Console.WriteLine($"byte to ushort sign ext (lower): {PackedSimd.SignExtendWideningLower(v1byte)}");
Console.WriteLine($"byte to ushort sign ext (upper): {PackedSimd.SignExtendWideningUpper(v1byte)}");
Console.WriteLine($"byte to ushort zero ext (lower): {PackedSimd.ZeroExtendWideningLower(v1byte)}");
Console.WriteLine($"byte to ushort zero ext (upper): {PackedSimd.ZeroExtendWideningUpper(v1byte)}");
Console.WriteLine($"short to int sign ext (lower): {PackedSimd.SignExtendWideningLower(v1short)}");
Console.WriteLine($"short to int sign ext (upper): {PackedSimd.SignExtendWideningUpper(v1short)}");
Console.WriteLine($"short to int zero ext (lower): {PackedSimd.ZeroExtendWideningLower(v1short)}");
Console.WriteLine($"short to int zero ext (upper): {PackedSimd.ZeroExtendWideningUpper(v1short)}");
Console.WriteLine($"ushort to uint sign ext (lower): {PackedSimd.SignExtendWideningLower(v1ushort)}");
Console.WriteLine($"ushort to uint sign ext (upper): {PackedSimd.SignExtendWideningUpper(v1ushort)}");
Console.WriteLine($"ushort to uint zero ext (lower): {PackedSimd.ZeroExtendWideningLower(v1ushort)}");
Console.WriteLine($"ushort to uint zero ext (upper): {PackedSimd.ZeroExtendWideningUpper(v1ushort)}");
Console.WriteLine($"int to long sign ext (lower): {PackedSimd.SignExtendWideningLower(v1int)}");
Console.WriteLine($"int to long sign ext (upper): {PackedSimd.SignExtendWideningUpper(v1int)}");
Console.WriteLine($"int to long zero ext (lower): {PackedSimd.ZeroExtendWideningLower(v1int)}");
Console.WriteLine($"int to long zero ext (upper): {PackedSimd.ZeroExtendWideningUpper(v1int)}");
Console.WriteLine($"uint to ulong sign ext (lower): {PackedSimd.SignExtendWideningLower(v1uint)}");
Console.WriteLine($"uint to ulong sign ext (upper): {PackedSimd.SignExtendWideningUpper(v1uint)}");
Console.WriteLine($"uint to ulong zero ext (lower): {PackedSimd.ZeroExtendWideningLower(v1uint)}");
Console.WriteLine($"uint to ulong zero ext (upper): {PackedSimd.ZeroExtendWideningUpper(v1uint)}");
}

output:
 v1sbyte: <-2, -25, 81, 85, 94, -114, -46, 18, 1, -66, 46, -73, 76, -4, 124, 88>
v1byte: <0, 229, 13, 234, 228, 107, 238, 119, 4, 190, 183, 84, 87, 127, 46, 135>
v1short: <-21942, 12726, -31745, -3459, 11206, -25452, 15233, -19319>
v1ushort: <58688, 38751, 4831, 63651, 29450, 49653, 62398, 19778>
v1int: <-330723718, 654137123, 666254210, -764101589>
v1uint: <1734002338, 80703557, 1326853359, 991892688>
sbyte to short sign ext (lower): <-2, -25, 81, 85, 94, -114, -46, 18>
sbyte to short sign ext (upper): <1, -66, 46, -73, 76, -4, 124, 88>
sbyte to short zero ext (lower): <254, 231, 81, 85, 94, 142, 210, 18>
sbyte to short zero ext (upper): <1, 190, 46, 183, 76, 252, 124, 88>
byte to ushort sign ext (lower): <0, 65509, 13, 65514, 65508, 107, 65518, 119>
byte to ushort sign ext (upper): <4, 65470, 65463, 84, 87, 127, 46, 65415>
byte to ushort zero ext (lower): <0, 229, 13, 234, 228, 107, 238, 119>
byte to ushort zero ext (upper): <4, 190, 183, 84, 87, 127, 46, 135>
short to int sign ext (lower): <-21942, 12726, -31745, -3459>
short to int sign ext (upper): <11206, -25452, 15233, -19319>
short to int zero ext (lower): <43594, 12726, 33791, 62077>
short to int zero ext (upper): <11206, 40084, 15233, 46217>
ushort to uint sign ext (lower): <4294960448, 4294940511, 4831, 4294965411>
ushort to uint sign ext (upper): <29450, 4294951413, 4294964158, 19778>
ushort to uint zero ext (lower): <58688, 38751, 4831, 63651>
ushort to uint zero ext (upper): <29450, 49653, 62398, 19778>
int to long sign ext (lower): <-330723718, 654137123>
int to long sign ext (upper): <666254210, -764101589>
int to long zero ext (lower): <3964243578, 654137123>
int to long zero ext (upper): <666254210, 3530865707>
uint to ulong sign ext (lower): <1734002338, 80703557>
uint to ulong sign ext (upper): <1326853359, 991892688>
uint to ulong zero ext (lower): <1734002338, 80703557>
uint to ulong zero ext (upper): <1326853359, 991892688>

emitted code check:
> wa-info -v -d -f TestExtConv src/mono/sample/wasm/console-node/bin/Release/AppBundle/dotnet.native.wasm|grep SIMD|egrep 'ext'
i16x8.extend.low.i8x16.s [SIMD]
i16x8.extend.high.i8x16.s [SIMD]
i16x8.extend.low.i8x16.u [SIMD]
i16x8.extend.low.i8x16.u [SIMD]
i16x8.extend.low.i8x16.s [SIMD]
i16x8.extend.high.i8x16.s [SIMD]
i16x8.extend.low.i8x16.u [SIMD]
i16x8.extend.low.i8x16.u [SIMD]
i32x4.extend.low.i16x8.s [SIMD]
i32x4.extend.high.i16x8.s [SIMD]
i32x4.extend.low.i16x8.u [SIMD]
i32x4.extend.low.i16x8.u [SIMD]
i32x4.extend.low.i16x8.s [SIMD]
i32x4.extend.high.i16x8.s [SIMD]
i32x4.extend.low.i16x8.u [SIMD]
i32x4.extend.low.i16x8.u [SIMD]
i64x2.extend.low.i32x4.s [SIMD]
i64x2.extend.high.i32x4.s [SIMD]
i64x2.extend.low.i32x4.u [SIMD]
i64x2.extend.low.i32x4.u [SIMD]
i64x2.extend.low.i32x4.s [SIMD]
i64x2.extend.high.i32x4.s [SIMD]
i64x2.extend.low.i32x4.u [SIMD]
i64x2.extend.low.i32x4.u [SIMD]

vargaz
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May 15, 2023
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Comment threadsrc/mono/mono/mini/mini-llvm.c
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Looks like the SN_ZeroExtendWideningUpper is either not emitted right or reported wrong by wa-info, I will look into that.
@build-analysisbuild-analysisBot
mentioned this pull request
May 15, 2023

Closed

@radekdoulik
radekdoulik
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May 15, 2023

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Looks like the SN_ZeroExtendWideningUpper is either not emitted right or reported wrong by wa-info, I will look into that.
Looks like llvm is optimizing the code to use i16x8.extend.low.i8x16.u instead of i16x8.extend.high.i8x16.u. Not sure why. The actual output is right though.
The "optimized" code:
...
i8x16.shuffle 0x00000000000000000f0e0d0c0b0a0908 [SIMD]
i16x8.extend.low.i8x16.u [SIMD]
...

@radekdoulik
radekdoulik
merged commit c887bc7
into
dotnet:mainMay 15, 2023
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Jun 15, 2023
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@lambdageeklambdageekAwaiting requested review from lambdageek
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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('^' + ".*" + '

Skip to content
[wasm] Add extending conversions to PackedSimd - #86252
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radekdoulik merged 2 commits into
dotnet:mainfrom 
radekdoulik:pr-wasm-packed-simd-ext-conversions
May 15, 2023
Merged
[wasm] Add extending conversions to PackedSimd#86252
radekdoulik merged 2 commits into
dotnet:mainfrom 
radekdoulik:pr-wasm-packed-simd-ext-conversions
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Note regarding the new-api-needs-documentation label:
This serves as a reminder for when your PR is modifying a ref *.cs file and adding/modifying public APIs, please make sure the API implementation in the src *.cs file is documented with triple slash comments, so the PR reviewers can sign off that change.
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Tagging subscribers to this area: @dotnet/area-system-runtime-intrinsics

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Test method:
 static void TestExtConversions()
{
Vector128<int> v1int = Vector128.Create(RandomInt, RandomInt, RandomInt, RandomInt);
Vector128<uint> v1uint = Vector128.Create((uint)Random.Shared.Next(), (uint)Random.Shared.Next(), (uint)Random.Shared.Next(), (uint)Random.Shared.Next());
Vector128<byte> v1byte = Vector128.Create(0, (byte)Random.Shared.Next(), (byte)Random.Shared.Next(), (byte)Random.Shared.Next(), (byte)Random.Shared.Next(), (byte)Random.Shared.Next(), (byte)Random.Shared.Next(), (byte)Random.Shared.Next(), (byte)Random.Shared.Next(), (byte)Random.Shared.Next(), (byte)Random.Shared.Next(), (byte)Random.Shared.Next(), (byte)Random.Shared.Next(), (byte)Random.Shared.Next(), (byte)Random.Shared.Next(), (byte)Random.Shared.Next());
Vector128<sbyte> v1sbyte = Vector128.Create(RandomSByte, RandomSByte, RandomSByte, RandomSByte, RandomSByte, RandomSByte, RandomSByte, RandomSByte, RandomSByte, RandomSByte, RandomSByte, RandomSByte, RandomSByte, RandomSByte, RandomSByte, RandomSByte);
Vector128<short> v1short = Vector128.Create(RandomShort, RandomShort, RandomShort, RandomShort, RandomShort, RandomShort, RandomShort, RandomShort);
Vector128<ushort> v1ushort = Vector128.Create((ushort)Random.Shared.Next(), (ushort)Random.Shared.Next(), (ushort)Random.Shared.Next(), (ushort)Random.Shared.Next(), (ushort)Random.Shared.Next(), (ushort)Random.Shared.Next(), (ushort)Random.Shared.Next(), (ushort)Random.Shared.Next());
Console.WriteLine($"v1sbyte: {v1sbyte}");
Console.WriteLine($"v1byte: {v1byte}");
Console.WriteLine($"v1short: {v1short}");
Console.WriteLine($"v1ushort: {v1ushort}");
Console.WriteLine($"v1int: {v1int}");
Console.WriteLine($"v1uint: {v1uint}");
Console.WriteLine($"sbyte to short sign ext (lower): {PackedSimd.SignExtendWideningLower(v1sbyte)}");
Console.WriteLine($"sbyte to short sign ext (upper): {PackedSimd.SignExtendWideningUpper(v1sbyte)}");
Console.WriteLine($"sbyte to short zero ext (lower): {PackedSimd.ZeroExtendWideningLower(v1sbyte)}");
Console.WriteLine($"sbyte to short zero ext (upper): {PackedSimd.ZeroExtendWideningUpper(v1sbyte)}");
Console.WriteLine($"byte to ushort sign ext (lower): {PackedSimd.SignExtendWideningLower(v1byte)}");
Console.WriteLine($"byte to ushort sign ext (upper): {PackedSimd.SignExtendWideningUpper(v1byte)}");
Console.WriteLine($"byte to ushort zero ext (lower): {PackedSimd.ZeroExtendWideningLower(v1byte)}");
Console.WriteLine($"byte to ushort zero ext (upper): {PackedSimd.ZeroExtendWideningUpper(v1byte)}");
Console.WriteLine($"short to int sign ext (lower): {PackedSimd.SignExtendWideningLower(v1short)}");
Console.WriteLine($"short to int sign ext (upper): {PackedSimd.SignExtendWideningUpper(v1short)}");
Console.WriteLine($"short to int zero ext (lower): {PackedSimd.ZeroExtendWideningLower(v1short)}");
Console.WriteLine($"short to int zero ext (upper): {PackedSimd.ZeroExtendWideningUpper(v1short)}");
Console.WriteLine($"ushort to uint sign ext (lower): {PackedSimd.SignExtendWideningLower(v1ushort)}");
Console.WriteLine($"ushort to uint sign ext (upper): {PackedSimd.SignExtendWideningUpper(v1ushort)}");
Console.WriteLine($"ushort to uint zero ext (lower): {PackedSimd.ZeroExtendWideningLower(v1ushort)}");
Console.WriteLine($"ushort to uint zero ext (upper): {PackedSimd.ZeroExtendWideningUpper(v1ushort)}");
Console.WriteLine($"int to long sign ext (lower): {PackedSimd.SignExtendWideningLower(v1int)}");
Console.WriteLine($"int to long sign ext (upper): {PackedSimd.SignExtendWideningUpper(v1int)}");
Console.WriteLine($"int to long zero ext (lower): {PackedSimd.ZeroExtendWideningLower(v1int)}");
Console.WriteLine($"int to long zero ext (upper): {PackedSimd.ZeroExtendWideningUpper(v1int)}");
Console.WriteLine($"uint to ulong sign ext (lower): {PackedSimd.SignExtendWideningLower(v1uint)}");
Console.WriteLine($"uint to ulong sign ext (upper): {PackedSimd.SignExtendWideningUpper(v1uint)}");
Console.WriteLine($"uint to ulong zero ext (lower): {PackedSimd.ZeroExtendWideningLower(v1uint)}");
Console.WriteLine($"uint to ulong zero ext (upper): {PackedSimd.ZeroExtendWideningUpper(v1uint)}");
}

output:
 v1sbyte: <-2, -25, 81, 85, 94, -114, -46, 18, 1, -66, 46, -73, 76, -4, 124, 88>
v1byte: <0, 229, 13, 234, 228, 107, 238, 119, 4, 190, 183, 84, 87, 127, 46, 135>
v1short: <-21942, 12726, -31745, -3459, 11206, -25452, 15233, -19319>
v1ushort: <58688, 38751, 4831, 63651, 29450, 49653, 62398, 19778>
v1int: <-330723718, 654137123, 666254210, -764101589>
v1uint: <1734002338, 80703557, 1326853359, 991892688>
sbyte to short sign ext (lower): <-2, -25, 81, 85, 94, -114, -46, 18>
sbyte to short sign ext (upper): <1, -66, 46, -73, 76, -4, 124, 88>
sbyte to short zero ext (lower): <254, 231, 81, 85, 94, 142, 210, 18>
sbyte to short zero ext (upper): <1, 190, 46, 183, 76, 252, 124, 88>
byte to ushort sign ext (lower): <0, 65509, 13, 65514, 65508, 107, 65518, 119>
byte to ushort sign ext (upper): <4, 65470, 65463, 84, 87, 127, 46, 65415>
byte to ushort zero ext (lower): <0, 229, 13, 234, 228, 107, 238, 119>
byte to ushort zero ext (upper): <4, 190, 183, 84, 87, 127, 46, 135>
short to int sign ext (lower): <-21942, 12726, -31745, -3459>
short to int sign ext (upper): <11206, -25452, 15233, -19319>
short to int zero ext (lower): <43594, 12726, 33791, 62077>
short to int zero ext (upper): <11206, 40084, 15233, 46217>
ushort to uint sign ext (lower): <4294960448, 4294940511, 4831, 4294965411>
ushort to uint sign ext (upper): <29450, 4294951413, 4294964158, 19778>
ushort to uint zero ext (lower): <58688, 38751, 4831, 63651>
ushort to uint zero ext (upper): <29450, 49653, 62398, 19778>
int to long sign ext (lower): <-330723718, 654137123>
int to long sign ext (upper): <666254210, -764101589>
int to long zero ext (lower): <3964243578, 654137123>
int to long zero ext (upper): <666254210, 3530865707>
uint to ulong sign ext (lower): <1734002338, 80703557>
uint to ulong sign ext (upper): <1326853359, 991892688>
uint to ulong zero ext (lower): <1734002338, 80703557>
uint to ulong zero ext (upper): <1326853359, 991892688>

emitted code check:
> wa-info -v -d -f TestExtConv src/mono/sample/wasm/console-node/bin/Release/AppBundle/dotnet.native.wasm|grep SIMD|egrep 'ext'
i16x8.extend.low.i8x16.s [SIMD]
i16x8.extend.high.i8x16.s [SIMD]
i16x8.extend.low.i8x16.u [SIMD]
i16x8.extend.low.i8x16.u [SIMD]
i16x8.extend.low.i8x16.s [SIMD]
i16x8.extend.high.i8x16.s [SIMD]
i16x8.extend.low.i8x16.u [SIMD]
i16x8.extend.low.i8x16.u [SIMD]
i32x4.extend.low.i16x8.s [SIMD]
i32x4.extend.high.i16x8.s [SIMD]
i32x4.extend.low.i16x8.u [SIMD]
i32x4.extend.low.i16x8.u [SIMD]
i32x4.extend.low.i16x8.s [SIMD]
i32x4.extend.high.i16x8.s [SIMD]
i32x4.extend.low.i16x8.u [SIMD]
i32x4.extend.low.i16x8.u [SIMD]
i64x2.extend.low.i32x4.s [SIMD]
i64x2.extend.high.i32x4.s [SIMD]
i64x2.extend.low.i32x4.u [SIMD]
i64x2.extend.low.i32x4.u [SIMD]
i64x2.extend.low.i32x4.s [SIMD]
i64x2.extend.high.i32x4.s [SIMD]
i64x2.extend.low.i32x4.u [SIMD]
i64x2.extend.low.i32x4.u [SIMD]

vargaz
vargaz
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May 15, 2023
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Comment threadsrc/mono/mono/mini/mini-llvm.c
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@radekdoulik
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Looks like the SN_ZeroExtendWideningUpper is either not emitted right or reported wrong by wa-info, I will look into that.
@build-analysisbuild-analysisBot
mentioned this pull request
May 15, 2023

Closed

@radekdoulik
radekdoulik
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May 15, 2023

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Looks like the SN_ZeroExtendWideningUpper is either not emitted right or reported wrong by wa-info, I will look into that.
Looks like llvm is optimizing the code to use i16x8.extend.low.i8x16.u instead of i16x8.extend.high.i8x16.u. Not sure why. The actual output is right though.
The "optimized" code:
...
i8x16.shuffle 0x00000000000000000f0e0d0c0b0a0908 [SIMD]
i16x8.extend.low.i8x16.u [SIMD]
...

@radekdoulik
radekdoulik
merged commit c887bc7
into
dotnet:mainMay 15, 2023
@ghostghost
locked as resolved and limited conversation to collaborators
Jun 15, 2023
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@lambdageeklambdageekAwaiting requested review from lambdageek
@SamMonoRTSamMonoRTAwaiting requested review from SamMonoRT
@lewinglewingAwaiting requested review from lewing

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@vargazvargazvargaz approved these changes
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, '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
[wasm] Add extending conversions to PackedSimd - #86252
Merged
radekdoulik merged 2 commits into
dotnet:mainfrom 
radekdoulik:pr-wasm-packed-simd-ext-conversions
May 15, 2023
Merged
[wasm] Add extending conversions to PackedSimd#86252
radekdoulik merged 2 commits into
dotnet:mainfrom 
radekdoulik:pr-wasm-packed-simd-ext-conversions
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Note regarding the new-api-needs-documentation label:
This serves as a reminder for when your PR is modifying a ref *.cs file and adding/modifying public APIs, please make sure the API implementation in the src *.cs file is documented with triple slash comments, so the PR reviewers can sign off that change.
@radekdoulik
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Test method:
 static void TestExtConversions()
{
Vector128<int> v1int = Vector128.Create(RandomInt, RandomInt, RandomInt, RandomInt);
Vector128<uint> v1uint = Vector128.Create((uint)Random.Shared.Next(), (uint)Random.Shared.Next(), (uint)Random.Shared.Next(), (uint)Random.Shared.Next());
Vector128<byte> v1byte = Vector128.Create(0, (byte)Random.Shared.Next(), (byte)Random.Shared.Next(), (byte)Random.Shared.Next(), (byte)Random.Shared.Next(), (byte)Random.Shared.Next(), (byte)Random.Shared.Next(), (byte)Random.Shared.Next(), (byte)Random.Shared.Next(), (byte)Random.Shared.Next(), (byte)Random.Shared.Next(), (byte)Random.Shared.Next(), (byte)Random.Shared.Next(), (byte)Random.Shared.Next(), (byte)Random.Shared.Next(), (byte)Random.Shared.Next());
Vector128<sbyte> v1sbyte = Vector128.Create(RandomSByte, RandomSByte, RandomSByte, RandomSByte, RandomSByte, RandomSByte, RandomSByte, RandomSByte, RandomSByte, RandomSByte, RandomSByte, RandomSByte, RandomSByte, RandomSByte, RandomSByte, RandomSByte);
Vector128<short> v1short = Vector128.Create(RandomShort, RandomShort, RandomShort, RandomShort, RandomShort, RandomShort, RandomShort, RandomShort);
Vector128<ushort> v1ushort = Vector128.Create((ushort)Random.Shared.Next(), (ushort)Random.Shared.Next(), (ushort)Random.Shared.Next(), (ushort)Random.Shared.Next(), (ushort)Random.Shared.Next(), (ushort)Random.Shared.Next(), (ushort)Random.Shared.Next(), (ushort)Random.Shared.Next());
Console.WriteLine($"v1sbyte: {v1sbyte}");
Console.WriteLine($"v1byte: {v1byte}");
Console.WriteLine($"v1short: {v1short}");
Console.WriteLine($"v1ushort: {v1ushort}");
Console.WriteLine($"v1int: {v1int}");
Console.WriteLine($"v1uint: {v1uint}");
Console.WriteLine($"sbyte to short sign ext (lower): {PackedSimd.SignExtendWideningLower(v1sbyte)}");
Console.WriteLine($"sbyte to short sign ext (upper): {PackedSimd.SignExtendWideningUpper(v1sbyte)}");
Console.WriteLine($"sbyte to short zero ext (lower): {PackedSimd.ZeroExtendWideningLower(v1sbyte)}");
Console.WriteLine($"sbyte to short zero ext (upper): {PackedSimd.ZeroExtendWideningUpper(v1sbyte)}");
Console.WriteLine($"byte to ushort sign ext (lower): {PackedSimd.SignExtendWideningLower(v1byte)}");
Console.WriteLine($"byte to ushort sign ext (upper): {PackedSimd.SignExtendWideningUpper(v1byte)}");
Console.WriteLine($"byte to ushort zero ext (lower): {PackedSimd.ZeroExtendWideningLower(v1byte)}");
Console.WriteLine($"byte to ushort zero ext (upper): {PackedSimd.ZeroExtendWideningUpper(v1byte)}");
Console.WriteLine($"short to int sign ext (lower): {PackedSimd.SignExtendWideningLower(v1short)}");
Console.WriteLine($"short to int sign ext (upper): {PackedSimd.SignExtendWideningUpper(v1short)}");
Console.WriteLine($"short to int zero ext (lower): {PackedSimd.ZeroExtendWideningLower(v1short)}");
Console.WriteLine($"short to int zero ext (upper): {PackedSimd.ZeroExtendWideningUpper(v1short)}");
Console.WriteLine($"ushort to uint sign ext (lower): {PackedSimd.SignExtendWideningLower(v1ushort)}");
Console.WriteLine($"ushort to uint sign ext (upper): {PackedSimd.SignExtendWideningUpper(v1ushort)}");
Console.WriteLine($"ushort to uint zero ext (lower): {PackedSimd.ZeroExtendWideningLower(v1ushort)}");
Console.WriteLine($"ushort to uint zero ext (upper): {PackedSimd.ZeroExtendWideningUpper(v1ushort)}");
Console.WriteLine($"int to long sign ext (lower): {PackedSimd.SignExtendWideningLower(v1int)}");
Console.WriteLine($"int to long sign ext (upper): {PackedSimd.SignExtendWideningUpper(v1int)}");
Console.WriteLine($"int to long zero ext (lower): {PackedSimd.ZeroExtendWideningLower(v1int)}");
Console.WriteLine($"int to long zero ext (upper): {PackedSimd.ZeroExtendWideningUpper(v1int)}");
Console.WriteLine($"uint to ulong sign ext (lower): {PackedSimd.SignExtendWideningLower(v1uint)}");
Console.WriteLine($"uint to ulong sign ext (upper): {PackedSimd.SignExtendWideningUpper(v1uint)}");
Console.WriteLine($"uint to ulong zero ext (lower): {PackedSimd.ZeroExtendWideningLower(v1uint)}");
Console.WriteLine($"uint to ulong zero ext (upper): {PackedSimd.ZeroExtendWideningUpper(v1uint)}");
}

output:
 v1sbyte: <-2, -25, 81, 85, 94, -114, -46, 18, 1, -66, 46, -73, 76, -4, 124, 88>
v1byte: <0, 229, 13, 234, 228, 107, 238, 119, 4, 190, 183, 84, 87, 127, 46, 135>
v1short: <-21942, 12726, -31745, -3459, 11206, -25452, 15233, -19319>
v1ushort: <58688, 38751, 4831, 63651, 29450, 49653, 62398, 19778>
v1int: <-330723718, 654137123, 666254210, -764101589>
v1uint: <1734002338, 80703557, 1326853359, 991892688>
sbyte to short sign ext (lower): <-2, -25, 81, 85, 94, -114, -46, 18>
sbyte to short sign ext (upper): <1, -66, 46, -73, 76, -4, 124, 88>
sbyte to short zero ext (lower): <254, 231, 81, 85, 94, 142, 210, 18>
sbyte to short zero ext (upper): <1, 190, 46, 183, 76, 252, 124, 88>
byte to ushort sign ext (lower): <0, 65509, 13, 65514, 65508, 107, 65518, 119>
byte to ushort sign ext (upper): <4, 65470, 65463, 84, 87, 127, 46, 65415>
byte to ushort zero ext (lower): <0, 229, 13, 234, 228, 107, 238, 119>
byte to ushort zero ext (upper): <4, 190, 183, 84, 87, 127, 46, 135>
short to int sign ext (lower): <-21942, 12726, -31745, -3459>
short to int sign ext (upper): <11206, -25452, 15233, -19319>
short to int zero ext (lower): <43594, 12726, 33791, 62077>
short to int zero ext (upper): <11206, 40084, 15233, 46217>
ushort to uint sign ext (lower): <4294960448, 4294940511, 4831, 4294965411>
ushort to uint sign ext (upper): <29450, 4294951413, 4294964158, 19778>
ushort to uint zero ext (lower): <58688, 38751, 4831, 63651>
ushort to uint zero ext (upper): <29450, 49653, 62398, 19778>
int to long sign ext (lower): <-330723718, 654137123>
int to long sign ext (upper): <666254210, -764101589>
int to long zero ext (lower): <3964243578, 654137123>
int to long zero ext (upper): <666254210, 3530865707>
uint to ulong sign ext (lower): <1734002338, 80703557>
uint to ulong sign ext (upper): <1326853359, 991892688>
uint to ulong zero ext (lower): <1734002338, 80703557>
uint to ulong zero ext (upper): <1326853359, 991892688>

emitted code check:
> wa-info -v -d -f TestExtConv src/mono/sample/wasm/console-node/bin/Release/AppBundle/dotnet.native.wasm|grep SIMD|egrep 'ext'
i16x8.extend.low.i8x16.s [SIMD]
i16x8.extend.high.i8x16.s [SIMD]
i16x8.extend.low.i8x16.u [SIMD]
i16x8.extend.low.i8x16.u [SIMD]
i16x8.extend.low.i8x16.s [SIMD]
i16x8.extend.high.i8x16.s [SIMD]
i16x8.extend.low.i8x16.u [SIMD]
i16x8.extend.low.i8x16.u [SIMD]
i32x4.extend.low.i16x8.s [SIMD]
i32x4.extend.high.i16x8.s [SIMD]
i32x4.extend.low.i16x8.u [SIMD]
i32x4.extend.low.i16x8.u [SIMD]
i32x4.extend.low.i16x8.s [SIMD]
i32x4.extend.high.i16x8.s [SIMD]
i32x4.extend.low.i16x8.u [SIMD]
i32x4.extend.low.i16x8.u [SIMD]
i64x2.extend.low.i32x4.s [SIMD]
i64x2.extend.high.i32x4.s [SIMD]
i64x2.extend.low.i32x4.u [SIMD]
i64x2.extend.low.i32x4.u [SIMD]
i64x2.extend.low.i32x4.s [SIMD]
i64x2.extend.high.i32x4.s [SIMD]
i64x2.extend.low.i32x4.u [SIMD]
i64x2.extend.low.i32x4.u [SIMD]

vargaz
vargaz
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May 15, 2023
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Comment threadsrc/mono/mono/mini/mini-llvm.c
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@radekdoulik
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May 15, 2023

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Looks like the SN_ZeroExtendWideningUpper is either not emitted right or reported wrong by wa-info, I will look into that.
@build-analysisbuild-analysisBot
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May 15, 2023

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@radekdoulik
radekdoulik
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May 15, 2023

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Looks like the SN_ZeroExtendWideningUpper is either not emitted right or reported wrong by wa-info, I will look into that.
Looks like llvm is optimizing the code to use i16x8.extend.low.i8x16.u instead of i16x8.extend.high.i8x16.u. Not sure why. The actual output is right though.
The "optimized" code:
...
i8x16.shuffle 0x00000000000000000f0e0d0c0b0a0908 [SIMD]
i16x8.extend.low.i8x16.u [SIMD]
...

@radekdoulik
radekdoulik
merged commit c887bc7
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dotnet:mainMay 15, 2023
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Jun 15, 2023
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