simd-go-POC

This repository is an attempt at adding SIMD to Go through compiler intrinsics.

Init

git submodule update --init --recursive

Build

pushd go && ../build.sh && popd

Run

go/bin/go run [-tags neon|sse2|sse4.1|ssse3] ./examples/{NAME}.go

Architecture

• patches -> patching existing files
• overlays -> new dirs+files

Supported Intrinsics

legend:

• 🚫 not available
• ✅ implemented
• ❌ not implemented (maybe unavailable)

Intrinsic	NEON	SSE2	SSE4.1	SSSE3
Add8x16	✅	✅	✅	🚫
AddU8x16	✅	✅	✅	🚫
Sub8x16	✅	✅	✅	🚫
SubU8x16	✅	✅	✅	🚫
SaturatingAdd8x16	✅	✅	✅	🚫
SaturatingAddU8x16	✅	✅	✅	🚫
SaturatingSub8x16	✅	✅	✅	🚫
SaturatingSubU8x16	✅	✅	✅	🚫
And8x16	✅	✅	✅	🚫
AndU8x16	✅	✅	✅	🚫
And16x8	❌	✅	✅	🚫
AndU16x8	❌	✅	✅	🚫
Or8x16	✅	✅	✅	🚫
OrU8x16	✅	✅	✅	🚫
Xor8x16	✅	✅	✅	🚫
Xor8x16	✅	✅	✅	🚫
ShiftLeftU8x16	✅	🚫	🚫	🚫
ShiftLeft8x16	✅	🚫	🚫	🚫
ShiftRightU8x16	✅	🚫	🚫	🚫
ShiftRight8x16	✅	🚫	🚫	🚫
ShiftRightU16x8	❌	✅	✅	🚫
ShiftRight16x8	❌	✅	✅	🚫
Max8x16	✅	🚫	✅	🚫
MaxU8x16	✅	✅	✅	🚫
Min8x16	✅	🚫	✅	🚫
MinU8x16	✅	✅	✅	🚫
ReduceMax8x16	✅	🚫	🚫	🚫
ReduceMaxU8x16	✅	🚫	🚫	🚫
ReduceMin8x16	✅	🚫	🚫	🚫
ReduceMinU8x16	✅	❌	❌	🚫
ExtractU8x16	✅	❌	❌	✅
Extract8x16	✅	❌	❌	✅
LookupU8x16	✅	❌	❌	✅
Lookup8x16	✅	❌	❌	✅
AllZerosU8x16	❌	❌	✅	🚫
AllZeros8x16	❌	❌	✅	🚫
MovMaskByteU8x16	🚫	✅	✅	🚫
MovMaskByte8x16	🚫	✅	✅	🚫
SplatU8x16	✅	❌	❌	🚫
Splat8x16	✅	❌	❌	🚫