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name old time/op new time/op delta GlyphAlpha16Over-8 3.55µs ± 0% 3.17µs ± 0% -10.58% (p=0.000 n=10+10) GlyphAlpha32Over-8 6.73µs ± 1% 4.94µs ± 0% -26.55% (p=0.000 n=10+9) GlyphAlpha64Over-8 16.4µs ± 0% 9.6µs ± 0% -41.30% (p=0.000 n=9+10) GlyphAlpha128Over-8 47.3µs ± 0% 23.1µs ± 1% -51.09% (p=0.000 n=9+9) GlyphAlpha256Over-8 159µs ± 0% 69µs ± 0% -56.82% (p=0.000 n=9+8) A comparison of the non-SIMD and SIMD versions: name time/op FixedAccumulateOpOver16-8 579ns ± 0% FixedAccumulateOpOverSIMD16-8 183ns ± 0% FloatingAccumulateOpOver16-8 670ns ± 1% FloatingAccumulateOpOverSIMD16-8 242ns ± 0% FixedAccumulateOpOver64-8 9.61µs ± 0% FixedAccumulateOpOverSIMD64-8 2.72µs ± 0% FloatingAccumulateOpOver64-8 11.1µs ± 0% FloatingAccumulateOpOverSIMD64-8 3.65µs ± 0% Change-Id: I08273c40ac5445f39b77a88fb8b6b07fd3e5f84b Reviewed-on: https://go-review.googlesource.com/30831 Reviewed-by: David Crawshaw <crawshaw@golang.org>
28 lines
634 B
Go
28 lines
634 B
Go
// Copyright 2016 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// +build !appengine
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// +build gc
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// +build !noasm
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package vector
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func haveSSE4_1() bool
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var haveFixedAccumulateSIMD = haveSSE4_1()
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const haveFloatingAccumulateSIMD = true
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//go:noescape
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func fixedAccumulateOpOverSIMD(dst []uint8, src []uint32)
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//go:noescape
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func fixedAccumulateOpSrcSIMD(dst []uint8, src []uint32)
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//go:noescape
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func floatingAccumulateOpOverSIMD(dst []uint8, src []float32)
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//go:noescape
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func floatingAccumulateOpSrcSIMD(dst []uint8, src []float32)
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