golang-image/vector/gen_acc_amd64.s.tmpl

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// Copyright 2016 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build !appengine
// +build gc
// +build !noasm
#include "textflag.h"
// fl is short for floating point math. fx is short for fixed point math.
DATA flAlmost65536<>+0x00(SB)/8, $0x477fffff477fffff
DATA flAlmost65536<>+0x08(SB)/8, $0x477fffff477fffff
DATA flOne<>+0x00(SB)/8, $0x3f8000003f800000
DATA flOne<>+0x08(SB)/8, $0x3f8000003f800000
DATA flSignMask<>+0x00(SB)/8, $0x7fffffff7fffffff
DATA flSignMask<>+0x08(SB)/8, $0x7fffffff7fffffff
// scatterAndMulBy0x101 is a PSHUFB mask that brings the low four bytes of an
// XMM register to the low byte of that register's four uint32 values. It
// duplicates those bytes, effectively multiplying each uint32 by 0x101.
//
// It transforms a little-endian 16-byte XMM value from
// ijkl????????????
// to
// ii00jj00kk00ll00
DATA scatterAndMulBy0x101<>+0x00(SB)/8, $0x8080010180800000
DATA scatterAndMulBy0x101<>+0x08(SB)/8, $0x8080030380800202
vector: remove a shift from the inner loop. PSHUFB already lets us pick certain bytes out of an XMM register. There's no need to shift by 8 bits (1 byte) beforehand. The code generator is simpler. There's also a small win on the benchmarks, especially for FixedAccumulateOpOverSIMD. name old time/op new time/op delta FixedAccumulateOpOverSIMD16-8 183ns ± 0% 174ns ± 0% -4.92% (p=0.000 n=8+8) FixedAccumulateOpSrcSIMD16-8 87.0ns ± 1% 86.3ns ± 0% -0.77% (p=0.000 n=10+9) FixedAccumulateMaskSIMD16-8 80.4ns ± 1% 81.2ns ± 1% +1.01% (p=0.000 n=10+10) FloatingAccumulateOpOverSIMD16-8 250ns ± 1% 244ns ± 0% -2.39% (p=0.000 n=10+8) FloatingAccumulateOpSrcSIMD16-8 176ns ± 1% 176ns ± 0% ~ (p=0.142 n=10+8) FloatingAccumulateMaskSIMD16-8 167ns ± 0% 167ns ± 0% ~ (p=0.137 n=8+10) FixedAccumulateOpOverSIMD64-8 2.73µs ± 1% 2.58µs ± 0% -5.36% (p=0.000 n=10+7) FixedAccumulateOpSrcSIMD64-8 1.18µs ± 1% 1.17µs ± 0% -0.33% (p=0.003 n=10+9) FixedAccumulateMaskSIMD64-8 1.09µs ± 0% 1.09µs ± 0% -0.17% (p=0.047 n=9+9) FloatingAccumulateOpOverSIMD64-8 3.67µs ± 0% 3.61µs ± 1% -1.47% (p=0.000 n=7+10) FloatingAccumulateOpSrcSIMD64-8 2.60µs ± 0% 2.61µs ± 0% +0.19% (p=0.003 n=8+8) FloatingAccumulateMaskSIMD64-8 2.47µs ± 0% 2.46µs ± 0% ~ (p=0.162 n=10+9) GlyphAlpha16Over-8 2.99µs ± 0% 2.98µs ± 1% -0.50% (p=0.021 n=9+10) GlyphAlpha16Src-8 2.89µs ± 1% 2.89µs ± 0% ~ (p=0.381 n=10+10) GlyphAlpha32Over-8 4.53µs ± 0% 4.50µs ± 0% -0.83% (p=0.000 n=10+10) GlyphAlpha32Src-8 4.14µs ± 0% 4.13µs ± 0% -0.21% (p=0.026 n=9+10) GlyphAlpha64Over-8 8.97µs ± 1% 8.80µs ± 0% -1.85% (p=0.000 n=10+9) GlyphAlpha64Src-8 7.42µs ± 1% 7.39µs ± 0% -0.45% (p=0.011 n=10+10) GlyphAlpha128Over-8 21.8µs ± 0% 21.2µs ± 0% -2.91% (p=0.000 n=9+9) GlyphAlpha128Src-8 15.6µs ± 0% 15.6µs ± 0% ~ (p=0.982 n=10+7) GlyphAlpha256Over-8 66.3µs ± 1% 63.7µs ± 0% -3.84% (p=0.000 n=10+9) GlyphAlpha256Src-8 41.2µs ± 1% 41.2µs ± 1% ~ (p=1.000 n=10+10) GlyphRGBA16Over-8 4.75µs ± 0% 4.75µs ± 1% ~ (p=0.735 n=9+10) GlyphRGBA16Src-8 4.20µs ± 0% 4.20µs ± 0% ~ (p=0.503 n=8+8) GlyphRGBA32Over-8 11.4µs ± 0% 11.4µs ± 0% ~ (p=0.119 n=9+9) GlyphRGBA32Src-8 9.34µs ± 1% 9.32µs ± 0% ~ (p=0.062 n=9+8) GlyphRGBA64Over-8 36.0µs ± 0% 36.1µs ± 0% ~ (p=0.209 n=8+9) GlyphRGBA64Src-8 27.9µs ± 1% 27.8µs ± 0% ~ (p=0.796 n=10+10) GlyphRGBA128Over-8 131µs ± 0% 131µs ± 0% ~ (p=0.931 n=9+9) GlyphRGBA128Src-8 97.9µs ± 0% 97.7µs ± 1% ~ (p=0.053 n=9+10) GlyphRGBA256Over-8 503µs ± 0% 503µs ± 1% ~ (p=0.274 n=8+10) GlyphRGBA256Src-8 370µs ± 0% 369µs ± 0% ~ (p=0.497 n=9+10) Change-Id: I56651e70b258792b83ea2a74904756243c88bef4 Reviewed-on: https://go-review.googlesource.com/31537 Reviewed-by: David Crawshaw <crawshaw@golang.org>
2016-10-20 06:15:53 +02:00
// gather is a PSHUFB mask that brings the second-lowest byte of the XMM
// register's four uint32 values to the low four bytes of that register.
//
// It transforms a little-endian 16-byte XMM value from
vector: remove a shift from the inner loop. PSHUFB already lets us pick certain bytes out of an XMM register. There's no need to shift by 8 bits (1 byte) beforehand. The code generator is simpler. There's also a small win on the benchmarks, especially for FixedAccumulateOpOverSIMD. name old time/op new time/op delta FixedAccumulateOpOverSIMD16-8 183ns ± 0% 174ns ± 0% -4.92% (p=0.000 n=8+8) FixedAccumulateOpSrcSIMD16-8 87.0ns ± 1% 86.3ns ± 0% -0.77% (p=0.000 n=10+9) FixedAccumulateMaskSIMD16-8 80.4ns ± 1% 81.2ns ± 1% +1.01% (p=0.000 n=10+10) FloatingAccumulateOpOverSIMD16-8 250ns ± 1% 244ns ± 0% -2.39% (p=0.000 n=10+8) FloatingAccumulateOpSrcSIMD16-8 176ns ± 1% 176ns ± 0% ~ (p=0.142 n=10+8) FloatingAccumulateMaskSIMD16-8 167ns ± 0% 167ns ± 0% ~ (p=0.137 n=8+10) FixedAccumulateOpOverSIMD64-8 2.73µs ± 1% 2.58µs ± 0% -5.36% (p=0.000 n=10+7) FixedAccumulateOpSrcSIMD64-8 1.18µs ± 1% 1.17µs ± 0% -0.33% (p=0.003 n=10+9) FixedAccumulateMaskSIMD64-8 1.09µs ± 0% 1.09µs ± 0% -0.17% (p=0.047 n=9+9) FloatingAccumulateOpOverSIMD64-8 3.67µs ± 0% 3.61µs ± 1% -1.47% (p=0.000 n=7+10) FloatingAccumulateOpSrcSIMD64-8 2.60µs ± 0% 2.61µs ± 0% +0.19% (p=0.003 n=8+8) FloatingAccumulateMaskSIMD64-8 2.47µs ± 0% 2.46µs ± 0% ~ (p=0.162 n=10+9) GlyphAlpha16Over-8 2.99µs ± 0% 2.98µs ± 1% -0.50% (p=0.021 n=9+10) GlyphAlpha16Src-8 2.89µs ± 1% 2.89µs ± 0% ~ (p=0.381 n=10+10) GlyphAlpha32Over-8 4.53µs ± 0% 4.50µs ± 0% -0.83% (p=0.000 n=10+10) GlyphAlpha32Src-8 4.14µs ± 0% 4.13µs ± 0% -0.21% (p=0.026 n=9+10) GlyphAlpha64Over-8 8.97µs ± 1% 8.80µs ± 0% -1.85% (p=0.000 n=10+9) GlyphAlpha64Src-8 7.42µs ± 1% 7.39µs ± 0% -0.45% (p=0.011 n=10+10) GlyphAlpha128Over-8 21.8µs ± 0% 21.2µs ± 0% -2.91% (p=0.000 n=9+9) GlyphAlpha128Src-8 15.6µs ± 0% 15.6µs ± 0% ~ (p=0.982 n=10+7) GlyphAlpha256Over-8 66.3µs ± 1% 63.7µs ± 0% -3.84% (p=0.000 n=10+9) GlyphAlpha256Src-8 41.2µs ± 1% 41.2µs ± 1% ~ (p=1.000 n=10+10) GlyphRGBA16Over-8 4.75µs ± 0% 4.75µs ± 1% ~ (p=0.735 n=9+10) GlyphRGBA16Src-8 4.20µs ± 0% 4.20µs ± 0% ~ (p=0.503 n=8+8) GlyphRGBA32Over-8 11.4µs ± 0% 11.4µs ± 0% ~ (p=0.119 n=9+9) GlyphRGBA32Src-8 9.34µs ± 1% 9.32µs ± 0% ~ (p=0.062 n=9+8) GlyphRGBA64Over-8 36.0µs ± 0% 36.1µs ± 0% ~ (p=0.209 n=8+9) GlyphRGBA64Src-8 27.9µs ± 1% 27.8µs ± 0% ~ (p=0.796 n=10+10) GlyphRGBA128Over-8 131µs ± 0% 131µs ± 0% ~ (p=0.931 n=9+9) GlyphRGBA128Src-8 97.9µs ± 0% 97.7µs ± 1% ~ (p=0.053 n=9+10) GlyphRGBA256Over-8 503µs ± 0% 503µs ± 1% ~ (p=0.274 n=8+10) GlyphRGBA256Src-8 370µs ± 0% 369µs ± 0% ~ (p=0.497 n=9+10) Change-Id: I56651e70b258792b83ea2a74904756243c88bef4 Reviewed-on: https://go-review.googlesource.com/31537 Reviewed-by: David Crawshaw <crawshaw@golang.org>
2016-10-20 06:15:53 +02:00
// ?i???j???k???l??
// to
// ijkl000000000000
vector: remove a shift from the inner loop. PSHUFB already lets us pick certain bytes out of an XMM register. There's no need to shift by 8 bits (1 byte) beforehand. The code generator is simpler. There's also a small win on the benchmarks, especially for FixedAccumulateOpOverSIMD. name old time/op new time/op delta FixedAccumulateOpOverSIMD16-8 183ns ± 0% 174ns ± 0% -4.92% (p=0.000 n=8+8) FixedAccumulateOpSrcSIMD16-8 87.0ns ± 1% 86.3ns ± 0% -0.77% (p=0.000 n=10+9) FixedAccumulateMaskSIMD16-8 80.4ns ± 1% 81.2ns ± 1% +1.01% (p=0.000 n=10+10) FloatingAccumulateOpOverSIMD16-8 250ns ± 1% 244ns ± 0% -2.39% (p=0.000 n=10+8) FloatingAccumulateOpSrcSIMD16-8 176ns ± 1% 176ns ± 0% ~ (p=0.142 n=10+8) FloatingAccumulateMaskSIMD16-8 167ns ± 0% 167ns ± 0% ~ (p=0.137 n=8+10) FixedAccumulateOpOverSIMD64-8 2.73µs ± 1% 2.58µs ± 0% -5.36% (p=0.000 n=10+7) FixedAccumulateOpSrcSIMD64-8 1.18µs ± 1% 1.17µs ± 0% -0.33% (p=0.003 n=10+9) FixedAccumulateMaskSIMD64-8 1.09µs ± 0% 1.09µs ± 0% -0.17% (p=0.047 n=9+9) FloatingAccumulateOpOverSIMD64-8 3.67µs ± 0% 3.61µs ± 1% -1.47% (p=0.000 n=7+10) FloatingAccumulateOpSrcSIMD64-8 2.60µs ± 0% 2.61µs ± 0% +0.19% (p=0.003 n=8+8) FloatingAccumulateMaskSIMD64-8 2.47µs ± 0% 2.46µs ± 0% ~ (p=0.162 n=10+9) GlyphAlpha16Over-8 2.99µs ± 0% 2.98µs ± 1% -0.50% (p=0.021 n=9+10) GlyphAlpha16Src-8 2.89µs ± 1% 2.89µs ± 0% ~ (p=0.381 n=10+10) GlyphAlpha32Over-8 4.53µs ± 0% 4.50µs ± 0% -0.83% (p=0.000 n=10+10) GlyphAlpha32Src-8 4.14µs ± 0% 4.13µs ± 0% -0.21% (p=0.026 n=9+10) GlyphAlpha64Over-8 8.97µs ± 1% 8.80µs ± 0% -1.85% (p=0.000 n=10+9) GlyphAlpha64Src-8 7.42µs ± 1% 7.39µs ± 0% -0.45% (p=0.011 n=10+10) GlyphAlpha128Over-8 21.8µs ± 0% 21.2µs ± 0% -2.91% (p=0.000 n=9+9) GlyphAlpha128Src-8 15.6µs ± 0% 15.6µs ± 0% ~ (p=0.982 n=10+7) GlyphAlpha256Over-8 66.3µs ± 1% 63.7µs ± 0% -3.84% (p=0.000 n=10+9) GlyphAlpha256Src-8 41.2µs ± 1% 41.2µs ± 1% ~ (p=1.000 n=10+10) GlyphRGBA16Over-8 4.75µs ± 0% 4.75µs ± 1% ~ (p=0.735 n=9+10) GlyphRGBA16Src-8 4.20µs ± 0% 4.20µs ± 0% ~ (p=0.503 n=8+8) GlyphRGBA32Over-8 11.4µs ± 0% 11.4µs ± 0% ~ (p=0.119 n=9+9) GlyphRGBA32Src-8 9.34µs ± 1% 9.32µs ± 0% ~ (p=0.062 n=9+8) GlyphRGBA64Over-8 36.0µs ± 0% 36.1µs ± 0% ~ (p=0.209 n=8+9) GlyphRGBA64Src-8 27.9µs ± 1% 27.8µs ± 0% ~ (p=0.796 n=10+10) GlyphRGBA128Over-8 131µs ± 0% 131µs ± 0% ~ (p=0.931 n=9+9) GlyphRGBA128Src-8 97.9µs ± 0% 97.7µs ± 1% ~ (p=0.053 n=9+10) GlyphRGBA256Over-8 503µs ± 0% 503µs ± 1% ~ (p=0.274 n=8+10) GlyphRGBA256Src-8 370µs ± 0% 369µs ± 0% ~ (p=0.497 n=9+10) Change-Id: I56651e70b258792b83ea2a74904756243c88bef4 Reviewed-on: https://go-review.googlesource.com/31537 Reviewed-by: David Crawshaw <crawshaw@golang.org>
2016-10-20 06:15:53 +02:00
DATA gather<>+0x00(SB)/8, $0x808080800d090501
DATA gather<>+0x08(SB)/8, $0x8080808080808080
DATA fxAlmost65536<>+0x00(SB)/8, $0x0000ffff0000ffff
DATA fxAlmost65536<>+0x08(SB)/8, $0x0000ffff0000ffff
DATA inverseFFFF<>+0x00(SB)/8, $0x8000800180008001
DATA inverseFFFF<>+0x08(SB)/8, $0x8000800180008001
GLOBL flAlmost65536<>(SB), (NOPTR+RODATA), $16
GLOBL flOne<>(SB), (NOPTR+RODATA), $16
GLOBL flSignMask<>(SB), (NOPTR+RODATA), $16
GLOBL scatterAndMulBy0x101<>(SB), (NOPTR+RODATA), $16
GLOBL gather<>(SB), (NOPTR+RODATA), $16
GLOBL fxAlmost65536<>(SB), (NOPTR+RODATA), $16
GLOBL inverseFFFF<>(SB), (NOPTR+RODATA), $16
// func haveSSE4_1() bool
TEXT ·haveSSE4_1(SB), NOSPLIT, $0
MOVQ $1, AX
CPUID
SHRQ $19, CX
ANDQ $1, CX
MOVB CX, ret+0(FP)
RET
// ----------------------------------------------------------------------------
vector: add SIMD versions of xxxAccumulateMask. name old time/op new time/op delta GlyphAlphaLoose16Over-8 3.96µs ± 0% 3.64µs ± 1% -8.08% (p=0.000 n=8+10) GlyphAlphaLoose16Src-8 3.64µs ± 0% 3.35µs ± 0% -7.88% (p=0.000 n=8+9) GlyphAlphaLoose32Over-8 8.45µs ± 0% 6.74µs ± 0% -20.22% (p=0.000 n=8+9) GlyphAlphaLoose32Src-8 7.24µs ± 0% 5.54µs ± 1% -23.48% (p=0.000 n=8+10) GlyphAlphaLoose64Over-8 22.2µs ± 0% 17.4µs ± 0% -21.67% (p=0.000 n=9+9) GlyphAlphaLoose64Src-8 17.6µs ± 1% 12.2µs ± 1% -30.32% (p=0.000 n=10+10) GlyphAlphaLoose128Over-8 67.9µs ± 0% 53.3µs ± 1% -21.53% (p=0.000 n=10+10) GlyphAlphaLoose128Src-8 48.2µs ± 0% 32.6µs ± 2% -32.41% (p=0.000 n=9+10) GlyphAlphaLoose256Over-8 242µs ± 1% 187µs ± 1% -22.96% (p=0.000 n=9+9) GlyphAlphaLoose256Src-8 163µs ± 0% 105µs ± 1% -35.83% (p=0.000 n=9+9) GlyphRGBA16Over-8 5.25µs ± 1% 4.95µs ± 0% -5.78% (p=0.000 n=9+9) GlyphRGBA16Src-8 4.72µs ± 0% 4.43µs ± 1% -6.22% (p=0.000 n=9+10) GlyphRGBA32Over-8 13.5µs ± 0% 11.9µs ± 1% -12.19% (p=0.000 n=9+10) GlyphRGBA32Src-8 11.5µs ± 1% 9.8µs ± 0% -14.72% (p=0.000 n=9+9) GlyphRGBA64Over-8 42.0µs ± 2% 36.9µs ± 1% -12.19% (p=0.000 n=10+10) GlyphRGBA64Src-8 34.1µs ± 1% 28.5µs ± 0% -16.25% (p=0.000 n=9+7) GlyphRGBA128Over-8 149µs ± 2% 133µs ± 1% -10.24% (p=0.000 n=10+9) GlyphRGBA128Src-8 115µs ± 1% 99µs ± 1% -13.57% (p=0.000 n=9+10) GlyphRGBA256Over-8 566µs ± 0% 511µs ± 1% -9.85% (p=0.000 n=9+10) GlyphRGBA256Src-8 435µs ± 0% 372µs ± 0% -14.64% (p=0.000 n=9+8) GlyphNRGBA16Over-8 26.9µs ± 3% 26.0µs ± 3% -3.55% (p=0.000 n=10+9) GlyphNRGBA16Src-8 18.8µs ± 2% 18.4µs ± 2% -2.21% (p=0.000 n=9+10) GlyphNRGBA32Over-8 99.1µs ± 2% 95.9µs ± 3% -3.23% (p=0.000 n=10+10) GlyphNRGBA32Src-8 65.6µs ± 3% 62.8µs ± 2% -4.36% (p=0.000 n=10+10) GlyphNRGBA64Over-8 376µs ± 4% 370µs ± 2% ~ (p=0.063 n=10+10) GlyphNRGBA64Src-8 238µs ± 3% 233µs ± 1% -2.21% (p=0.000 n=9+10) GlyphNRGBA128Over-8 1.52ms ± 2% 1.48ms ± 0% -2.11% (p=0.000 n=10+8) GlyphNRGBA128Src-8 951µs ± 3% 935µs ± 1% -1.69% (p=0.013 n=10+9) GlyphNRGBA256Over-8 6.00ms ± 1% 5.87ms ± 3% -2.12% (p=0.002 n=10+10) GlyphNRGBA256Src-8 3.94ms ± 2% 3.80ms ± 2% -3.64% (p=0.000 n=10+10) A comparison of the non-SIMD and SIMD versions: name time/op FixedAccumulateMask16-8 237ns ± 0% FixedAccumulateMaskSIMD16-8 80.0ns ± 1% FloatingAccumulateMask16-8 413ns ± 2% FloatingAccumulateMaskSIMD16-8 166ns ± 0% FixedAccumulateMask64-8 3.42µs ± 0% FixedAccumulateMaskSIMD64-8 1.09µs ± 0% FloatingAccumulateMask64-8 6.92µs ± 0% FloatingAccumulateMaskSIMD64-8 2.47µs ± 1% Change-Id: Ib6980e5975ed2842ff2a372f76dd5f2e95c5526c Reviewed-on: https://go-review.googlesource.com/30898 Reviewed-by: David Crawshaw <crawshaw@golang.org>
2016-10-13 05:50:52 +02:00
// func {{.LongName}}SIMD({{.Args}})
//
// XMM registers. Variable names are per
// https://github.com/google/font-rs/blob/master/src/accumulate.c
//
// xmm0 scratch
// xmm1 x
// xmm2 y, z
// xmm3 {{.XMM3}}
// xmm4 {{.XMM4}}
// xmm5 {{.XMM5}}
vector: add SIMD versions of xxxAccumulateMask. name old time/op new time/op delta GlyphAlphaLoose16Over-8 3.96µs ± 0% 3.64µs ± 1% -8.08% (p=0.000 n=8+10) GlyphAlphaLoose16Src-8 3.64µs ± 0% 3.35µs ± 0% -7.88% (p=0.000 n=8+9) GlyphAlphaLoose32Over-8 8.45µs ± 0% 6.74µs ± 0% -20.22% (p=0.000 n=8+9) GlyphAlphaLoose32Src-8 7.24µs ± 0% 5.54µs ± 1% -23.48% (p=0.000 n=8+10) GlyphAlphaLoose64Over-8 22.2µs ± 0% 17.4µs ± 0% -21.67% (p=0.000 n=9+9) GlyphAlphaLoose64Src-8 17.6µs ± 1% 12.2µs ± 1% -30.32% (p=0.000 n=10+10) GlyphAlphaLoose128Over-8 67.9µs ± 0% 53.3µs ± 1% -21.53% (p=0.000 n=10+10) GlyphAlphaLoose128Src-8 48.2µs ± 0% 32.6µs ± 2% -32.41% (p=0.000 n=9+10) GlyphAlphaLoose256Over-8 242µs ± 1% 187µs ± 1% -22.96% (p=0.000 n=9+9) GlyphAlphaLoose256Src-8 163µs ± 0% 105µs ± 1% -35.83% (p=0.000 n=9+9) GlyphRGBA16Over-8 5.25µs ± 1% 4.95µs ± 0% -5.78% (p=0.000 n=9+9) GlyphRGBA16Src-8 4.72µs ± 0% 4.43µs ± 1% -6.22% (p=0.000 n=9+10) GlyphRGBA32Over-8 13.5µs ± 0% 11.9µs ± 1% -12.19% (p=0.000 n=9+10) GlyphRGBA32Src-8 11.5µs ± 1% 9.8µs ± 0% -14.72% (p=0.000 n=9+9) GlyphRGBA64Over-8 42.0µs ± 2% 36.9µs ± 1% -12.19% (p=0.000 n=10+10) GlyphRGBA64Src-8 34.1µs ± 1% 28.5µs ± 0% -16.25% (p=0.000 n=9+7) GlyphRGBA128Over-8 149µs ± 2% 133µs ± 1% -10.24% (p=0.000 n=10+9) GlyphRGBA128Src-8 115µs ± 1% 99µs ± 1% -13.57% (p=0.000 n=9+10) GlyphRGBA256Over-8 566µs ± 0% 511µs ± 1% -9.85% (p=0.000 n=9+10) GlyphRGBA256Src-8 435µs ± 0% 372µs ± 0% -14.64% (p=0.000 n=9+8) GlyphNRGBA16Over-8 26.9µs ± 3% 26.0µs ± 3% -3.55% (p=0.000 n=10+9) GlyphNRGBA16Src-8 18.8µs ± 2% 18.4µs ± 2% -2.21% (p=0.000 n=9+10) GlyphNRGBA32Over-8 99.1µs ± 2% 95.9µs ± 3% -3.23% (p=0.000 n=10+10) GlyphNRGBA32Src-8 65.6µs ± 3% 62.8µs ± 2% -4.36% (p=0.000 n=10+10) GlyphNRGBA64Over-8 376µs ± 4% 370µs ± 2% ~ (p=0.063 n=10+10) GlyphNRGBA64Src-8 238µs ± 3% 233µs ± 1% -2.21% (p=0.000 n=9+10) GlyphNRGBA128Over-8 1.52ms ± 2% 1.48ms ± 0% -2.11% (p=0.000 n=10+8) GlyphNRGBA128Src-8 951µs ± 3% 935µs ± 1% -1.69% (p=0.013 n=10+9) GlyphNRGBA256Over-8 6.00ms ± 1% 5.87ms ± 3% -2.12% (p=0.002 n=10+10) GlyphNRGBA256Src-8 3.94ms ± 2% 3.80ms ± 2% -3.64% (p=0.000 n=10+10) A comparison of the non-SIMD and SIMD versions: name time/op FixedAccumulateMask16-8 237ns ± 0% FixedAccumulateMaskSIMD16-8 80.0ns ± 1% FloatingAccumulateMask16-8 413ns ± 2% FloatingAccumulateMaskSIMD16-8 166ns ± 0% FixedAccumulateMask64-8 3.42µs ± 0% FixedAccumulateMaskSIMD64-8 1.09µs ± 0% FloatingAccumulateMask64-8 6.92µs ± 0% FloatingAccumulateMaskSIMD64-8 2.47µs ± 1% Change-Id: Ib6980e5975ed2842ff2a372f76dd5f2e95c5526c Reviewed-on: https://go-review.googlesource.com/30898 Reviewed-by: David Crawshaw <crawshaw@golang.org>
2016-10-13 05:50:52 +02:00
// xmm6 {{.XMM6}}
// xmm7 offset
// xmm8 {{.XMM8}}
// xmm9 {{.XMM9}}
// xmm10 {{.XMM10}}
vector: add SIMD versions of xxxAccumulateMask. name old time/op new time/op delta GlyphAlphaLoose16Over-8 3.96µs ± 0% 3.64µs ± 1% -8.08% (p=0.000 n=8+10) GlyphAlphaLoose16Src-8 3.64µs ± 0% 3.35µs ± 0% -7.88% (p=0.000 n=8+9) GlyphAlphaLoose32Over-8 8.45µs ± 0% 6.74µs ± 0% -20.22% (p=0.000 n=8+9) GlyphAlphaLoose32Src-8 7.24µs ± 0% 5.54µs ± 1% -23.48% (p=0.000 n=8+10) GlyphAlphaLoose64Over-8 22.2µs ± 0% 17.4µs ± 0% -21.67% (p=0.000 n=9+9) GlyphAlphaLoose64Src-8 17.6µs ± 1% 12.2µs ± 1% -30.32% (p=0.000 n=10+10) GlyphAlphaLoose128Over-8 67.9µs ± 0% 53.3µs ± 1% -21.53% (p=0.000 n=10+10) GlyphAlphaLoose128Src-8 48.2µs ± 0% 32.6µs ± 2% -32.41% (p=0.000 n=9+10) GlyphAlphaLoose256Over-8 242µs ± 1% 187µs ± 1% -22.96% (p=0.000 n=9+9) GlyphAlphaLoose256Src-8 163µs ± 0% 105µs ± 1% -35.83% (p=0.000 n=9+9) GlyphRGBA16Over-8 5.25µs ± 1% 4.95µs ± 0% -5.78% (p=0.000 n=9+9) GlyphRGBA16Src-8 4.72µs ± 0% 4.43µs ± 1% -6.22% (p=0.000 n=9+10) GlyphRGBA32Over-8 13.5µs ± 0% 11.9µs ± 1% -12.19% (p=0.000 n=9+10) GlyphRGBA32Src-8 11.5µs ± 1% 9.8µs ± 0% -14.72% (p=0.000 n=9+9) GlyphRGBA64Over-8 42.0µs ± 2% 36.9µs ± 1% -12.19% (p=0.000 n=10+10) GlyphRGBA64Src-8 34.1µs ± 1% 28.5µs ± 0% -16.25% (p=0.000 n=9+7) GlyphRGBA128Over-8 149µs ± 2% 133µs ± 1% -10.24% (p=0.000 n=10+9) GlyphRGBA128Src-8 115µs ± 1% 99µs ± 1% -13.57% (p=0.000 n=9+10) GlyphRGBA256Over-8 566µs ± 0% 511µs ± 1% -9.85% (p=0.000 n=9+10) GlyphRGBA256Src-8 435µs ± 0% 372µs ± 0% -14.64% (p=0.000 n=9+8) GlyphNRGBA16Over-8 26.9µs ± 3% 26.0µs ± 3% -3.55% (p=0.000 n=10+9) GlyphNRGBA16Src-8 18.8µs ± 2% 18.4µs ± 2% -2.21% (p=0.000 n=9+10) GlyphNRGBA32Over-8 99.1µs ± 2% 95.9µs ± 3% -3.23% (p=0.000 n=10+10) GlyphNRGBA32Src-8 65.6µs ± 3% 62.8µs ± 2% -4.36% (p=0.000 n=10+10) GlyphNRGBA64Over-8 376µs ± 4% 370µs ± 2% ~ (p=0.063 n=10+10) GlyphNRGBA64Src-8 238µs ± 3% 233µs ± 1% -2.21% (p=0.000 n=9+10) GlyphNRGBA128Over-8 1.52ms ± 2% 1.48ms ± 0% -2.11% (p=0.000 n=10+8) GlyphNRGBA128Src-8 951µs ± 3% 935µs ± 1% -1.69% (p=0.013 n=10+9) GlyphNRGBA256Over-8 6.00ms ± 1% 5.87ms ± 3% -2.12% (p=0.002 n=10+10) GlyphNRGBA256Src-8 3.94ms ± 2% 3.80ms ± 2% -3.64% (p=0.000 n=10+10) A comparison of the non-SIMD and SIMD versions: name time/op FixedAccumulateMask16-8 237ns ± 0% FixedAccumulateMaskSIMD16-8 80.0ns ± 1% FloatingAccumulateMask16-8 413ns ± 2% FloatingAccumulateMaskSIMD16-8 166ns ± 0% FixedAccumulateMask64-8 3.42µs ± 0% FixedAccumulateMaskSIMD64-8 1.09µs ± 0% FloatingAccumulateMask64-8 6.92µs ± 0% FloatingAccumulateMaskSIMD64-8 2.47µs ± 1% Change-Id: Ib6980e5975ed2842ff2a372f76dd5f2e95c5526c Reviewed-on: https://go-review.googlesource.com/30898 Reviewed-by: David Crawshaw <crawshaw@golang.org>
2016-10-13 05:50:52 +02:00
TEXT ·{{.LongName}}SIMD(SB), NOSPLIT, ${{.FrameSize}}-{{.ArgsSize}}
{{.LoadArgs}}
// R10 = len(src) &^ 3
// R11 = len(src)
MOVQ R10, R11
ANDQ $-4, R10
{{.Setup}}
{{.LoadXMMRegs}}
// offset := XMM(0x00000000 repeated four times) // Cumulative sum.
XORPS X7, X7
// i := 0
MOVQ $0, R9
{{.ShortName}}Loop4:
// for i < (len(src) &^ 3)
CMPQ R9, R10
JAE {{.ShortName}}Loop1
// x = XMM(s0, s1, s2, s3)
//
// Where s0 is src[i+0], s1 is src[i+1], etc.
MOVOU (SI), X1
// scratch = XMM(0, s0, s1, s2)
// x += scratch // yields x == XMM(s0, s0+s1, s1+s2, s2+s3)
MOVOU X1, X0
PSLLO $4, X0
{{.Add}} X0, X1
// scratch = XMM(0, 0, 0, 0)
// scratch = XMM(scratch@0, scratch@0, x@0, x@1) // yields scratch == XMM(0, 0, s0, s0+s1)
// x += scratch // yields x == XMM(s0, s0+s1, s0+s1+s2, s0+s1+s2+s3)
XORPS X0, X0
SHUFPS $0x40, X1, X0
{{.Add}} X0, X1
// x += offset
{{.Add}} X7, X1
{{.ClampAndScale}}
{{.ConvertToInt32}}
{{.Store4}}
// offset = XMM(x@3, x@3, x@3, x@3)
MOVOU X1, X7
SHUFPS $0xff, X1, X7
// i += 4
// dst = dst[4:]
// src = src[4:]
ADDQ $4, R9
vector: add SIMD versions of xxxAccumulateMask. name old time/op new time/op delta GlyphAlphaLoose16Over-8 3.96µs ± 0% 3.64µs ± 1% -8.08% (p=0.000 n=8+10) GlyphAlphaLoose16Src-8 3.64µs ± 0% 3.35µs ± 0% -7.88% (p=0.000 n=8+9) GlyphAlphaLoose32Over-8 8.45µs ± 0% 6.74µs ± 0% -20.22% (p=0.000 n=8+9) GlyphAlphaLoose32Src-8 7.24µs ± 0% 5.54µs ± 1% -23.48% (p=0.000 n=8+10) GlyphAlphaLoose64Over-8 22.2µs ± 0% 17.4µs ± 0% -21.67% (p=0.000 n=9+9) GlyphAlphaLoose64Src-8 17.6µs ± 1% 12.2µs ± 1% -30.32% (p=0.000 n=10+10) GlyphAlphaLoose128Over-8 67.9µs ± 0% 53.3µs ± 1% -21.53% (p=0.000 n=10+10) GlyphAlphaLoose128Src-8 48.2µs ± 0% 32.6µs ± 2% -32.41% (p=0.000 n=9+10) GlyphAlphaLoose256Over-8 242µs ± 1% 187µs ± 1% -22.96% (p=0.000 n=9+9) GlyphAlphaLoose256Src-8 163µs ± 0% 105µs ± 1% -35.83% (p=0.000 n=9+9) GlyphRGBA16Over-8 5.25µs ± 1% 4.95µs ± 0% -5.78% (p=0.000 n=9+9) GlyphRGBA16Src-8 4.72µs ± 0% 4.43µs ± 1% -6.22% (p=0.000 n=9+10) GlyphRGBA32Over-8 13.5µs ± 0% 11.9µs ± 1% -12.19% (p=0.000 n=9+10) GlyphRGBA32Src-8 11.5µs ± 1% 9.8µs ± 0% -14.72% (p=0.000 n=9+9) GlyphRGBA64Over-8 42.0µs ± 2% 36.9µs ± 1% -12.19% (p=0.000 n=10+10) GlyphRGBA64Src-8 34.1µs ± 1% 28.5µs ± 0% -16.25% (p=0.000 n=9+7) GlyphRGBA128Over-8 149µs ± 2% 133µs ± 1% -10.24% (p=0.000 n=10+9) GlyphRGBA128Src-8 115µs ± 1% 99µs ± 1% -13.57% (p=0.000 n=9+10) GlyphRGBA256Over-8 566µs ± 0% 511µs ± 1% -9.85% (p=0.000 n=9+10) GlyphRGBA256Src-8 435µs ± 0% 372µs ± 0% -14.64% (p=0.000 n=9+8) GlyphNRGBA16Over-8 26.9µs ± 3% 26.0µs ± 3% -3.55% (p=0.000 n=10+9) GlyphNRGBA16Src-8 18.8µs ± 2% 18.4µs ± 2% -2.21% (p=0.000 n=9+10) GlyphNRGBA32Over-8 99.1µs ± 2% 95.9µs ± 3% -3.23% (p=0.000 n=10+10) GlyphNRGBA32Src-8 65.6µs ± 3% 62.8µs ± 2% -4.36% (p=0.000 n=10+10) GlyphNRGBA64Over-8 376µs ± 4% 370µs ± 2% ~ (p=0.063 n=10+10) GlyphNRGBA64Src-8 238µs ± 3% 233µs ± 1% -2.21% (p=0.000 n=9+10) GlyphNRGBA128Over-8 1.52ms ± 2% 1.48ms ± 0% -2.11% (p=0.000 n=10+8) GlyphNRGBA128Src-8 951µs ± 3% 935µs ± 1% -1.69% (p=0.013 n=10+9) GlyphNRGBA256Over-8 6.00ms ± 1% 5.87ms ± 3% -2.12% (p=0.002 n=10+10) GlyphNRGBA256Src-8 3.94ms ± 2% 3.80ms ± 2% -3.64% (p=0.000 n=10+10) A comparison of the non-SIMD and SIMD versions: name time/op FixedAccumulateMask16-8 237ns ± 0% FixedAccumulateMaskSIMD16-8 80.0ns ± 1% FloatingAccumulateMask16-8 413ns ± 2% FloatingAccumulateMaskSIMD16-8 166ns ± 0% FixedAccumulateMask64-8 3.42µs ± 0% FixedAccumulateMaskSIMD64-8 1.09µs ± 0% FloatingAccumulateMask64-8 6.92µs ± 0% FloatingAccumulateMaskSIMD64-8 2.47µs ± 1% Change-Id: Ib6980e5975ed2842ff2a372f76dd5f2e95c5526c Reviewed-on: https://go-review.googlesource.com/30898 Reviewed-by: David Crawshaw <crawshaw@golang.org>
2016-10-13 05:50:52 +02:00
ADDQ ${{.DstElemSize4}}, DI
ADDQ $16, SI
JMP {{.ShortName}}Loop4
{{.ShortName}}Loop1:
// for i < len(src)
CMPQ R9, R11
vector: add SIMD versions of xxxAccumulateMask. name old time/op new time/op delta GlyphAlphaLoose16Over-8 3.96µs ± 0% 3.64µs ± 1% -8.08% (p=0.000 n=8+10) GlyphAlphaLoose16Src-8 3.64µs ± 0% 3.35µs ± 0% -7.88% (p=0.000 n=8+9) GlyphAlphaLoose32Over-8 8.45µs ± 0% 6.74µs ± 0% -20.22% (p=0.000 n=8+9) GlyphAlphaLoose32Src-8 7.24µs ± 0% 5.54µs ± 1% -23.48% (p=0.000 n=8+10) GlyphAlphaLoose64Over-8 22.2µs ± 0% 17.4µs ± 0% -21.67% (p=0.000 n=9+9) GlyphAlphaLoose64Src-8 17.6µs ± 1% 12.2µs ± 1% -30.32% (p=0.000 n=10+10) GlyphAlphaLoose128Over-8 67.9µs ± 0% 53.3µs ± 1% -21.53% (p=0.000 n=10+10) GlyphAlphaLoose128Src-8 48.2µs ± 0% 32.6µs ± 2% -32.41% (p=0.000 n=9+10) GlyphAlphaLoose256Over-8 242µs ± 1% 187µs ± 1% -22.96% (p=0.000 n=9+9) GlyphAlphaLoose256Src-8 163µs ± 0% 105µs ± 1% -35.83% (p=0.000 n=9+9) GlyphRGBA16Over-8 5.25µs ± 1% 4.95µs ± 0% -5.78% (p=0.000 n=9+9) GlyphRGBA16Src-8 4.72µs ± 0% 4.43µs ± 1% -6.22% (p=0.000 n=9+10) GlyphRGBA32Over-8 13.5µs ± 0% 11.9µs ± 1% -12.19% (p=0.000 n=9+10) GlyphRGBA32Src-8 11.5µs ± 1% 9.8µs ± 0% -14.72% (p=0.000 n=9+9) GlyphRGBA64Over-8 42.0µs ± 2% 36.9µs ± 1% -12.19% (p=0.000 n=10+10) GlyphRGBA64Src-8 34.1µs ± 1% 28.5µs ± 0% -16.25% (p=0.000 n=9+7) GlyphRGBA128Over-8 149µs ± 2% 133µs ± 1% -10.24% (p=0.000 n=10+9) GlyphRGBA128Src-8 115µs ± 1% 99µs ± 1% -13.57% (p=0.000 n=9+10) GlyphRGBA256Over-8 566µs ± 0% 511µs ± 1% -9.85% (p=0.000 n=9+10) GlyphRGBA256Src-8 435µs ± 0% 372µs ± 0% -14.64% (p=0.000 n=9+8) GlyphNRGBA16Over-8 26.9µs ± 3% 26.0µs ± 3% -3.55% (p=0.000 n=10+9) GlyphNRGBA16Src-8 18.8µs ± 2% 18.4µs ± 2% -2.21% (p=0.000 n=9+10) GlyphNRGBA32Over-8 99.1µs ± 2% 95.9µs ± 3% -3.23% (p=0.000 n=10+10) GlyphNRGBA32Src-8 65.6µs ± 3% 62.8µs ± 2% -4.36% (p=0.000 n=10+10) GlyphNRGBA64Over-8 376µs ± 4% 370µs ± 2% ~ (p=0.063 n=10+10) GlyphNRGBA64Src-8 238µs ± 3% 233µs ± 1% -2.21% (p=0.000 n=9+10) GlyphNRGBA128Over-8 1.52ms ± 2% 1.48ms ± 0% -2.11% (p=0.000 n=10+8) GlyphNRGBA128Src-8 951µs ± 3% 935µs ± 1% -1.69% (p=0.013 n=10+9) GlyphNRGBA256Over-8 6.00ms ± 1% 5.87ms ± 3% -2.12% (p=0.002 n=10+10) GlyphNRGBA256Src-8 3.94ms ± 2% 3.80ms ± 2% -3.64% (p=0.000 n=10+10) A comparison of the non-SIMD and SIMD versions: name time/op FixedAccumulateMask16-8 237ns ± 0% FixedAccumulateMaskSIMD16-8 80.0ns ± 1% FloatingAccumulateMask16-8 413ns ± 2% FloatingAccumulateMaskSIMD16-8 166ns ± 0% FixedAccumulateMask64-8 3.42µs ± 0% FixedAccumulateMaskSIMD64-8 1.09µs ± 0% FloatingAccumulateMask64-8 6.92µs ± 0% FloatingAccumulateMaskSIMD64-8 2.47µs ± 1% Change-Id: Ib6980e5975ed2842ff2a372f76dd5f2e95c5526c Reviewed-on: https://go-review.googlesource.com/30898 Reviewed-by: David Crawshaw <crawshaw@golang.org>
2016-10-13 05:50:52 +02:00
JAE {{.ShortName}}End
// x = src[i] + offset
MOVL (SI), X1
{{.Add}} X7, X1
{{.ClampAndScale}}
{{.ConvertToInt32}}
{{.Store1}}
// offset = x
MOVOU X1, X7
// i += 1
// dst = dst[1:]
// src = src[1:]
ADDQ $1, R9
vector: add SIMD versions of xxxAccumulateMask. name old time/op new time/op delta GlyphAlphaLoose16Over-8 3.96µs ± 0% 3.64µs ± 1% -8.08% (p=0.000 n=8+10) GlyphAlphaLoose16Src-8 3.64µs ± 0% 3.35µs ± 0% -7.88% (p=0.000 n=8+9) GlyphAlphaLoose32Over-8 8.45µs ± 0% 6.74µs ± 0% -20.22% (p=0.000 n=8+9) GlyphAlphaLoose32Src-8 7.24µs ± 0% 5.54µs ± 1% -23.48% (p=0.000 n=8+10) GlyphAlphaLoose64Over-8 22.2µs ± 0% 17.4µs ± 0% -21.67% (p=0.000 n=9+9) GlyphAlphaLoose64Src-8 17.6µs ± 1% 12.2µs ± 1% -30.32% (p=0.000 n=10+10) GlyphAlphaLoose128Over-8 67.9µs ± 0% 53.3µs ± 1% -21.53% (p=0.000 n=10+10) GlyphAlphaLoose128Src-8 48.2µs ± 0% 32.6µs ± 2% -32.41% (p=0.000 n=9+10) GlyphAlphaLoose256Over-8 242µs ± 1% 187µs ± 1% -22.96% (p=0.000 n=9+9) GlyphAlphaLoose256Src-8 163µs ± 0% 105µs ± 1% -35.83% (p=0.000 n=9+9) GlyphRGBA16Over-8 5.25µs ± 1% 4.95µs ± 0% -5.78% (p=0.000 n=9+9) GlyphRGBA16Src-8 4.72µs ± 0% 4.43µs ± 1% -6.22% (p=0.000 n=9+10) GlyphRGBA32Over-8 13.5µs ± 0% 11.9µs ± 1% -12.19% (p=0.000 n=9+10) GlyphRGBA32Src-8 11.5µs ± 1% 9.8µs ± 0% -14.72% (p=0.000 n=9+9) GlyphRGBA64Over-8 42.0µs ± 2% 36.9µs ± 1% -12.19% (p=0.000 n=10+10) GlyphRGBA64Src-8 34.1µs ± 1% 28.5µs ± 0% -16.25% (p=0.000 n=9+7) GlyphRGBA128Over-8 149µs ± 2% 133µs ± 1% -10.24% (p=0.000 n=10+9) GlyphRGBA128Src-8 115µs ± 1% 99µs ± 1% -13.57% (p=0.000 n=9+10) GlyphRGBA256Over-8 566µs ± 0% 511µs ± 1% -9.85% (p=0.000 n=9+10) GlyphRGBA256Src-8 435µs ± 0% 372µs ± 0% -14.64% (p=0.000 n=9+8) GlyphNRGBA16Over-8 26.9µs ± 3% 26.0µs ± 3% -3.55% (p=0.000 n=10+9) GlyphNRGBA16Src-8 18.8µs ± 2% 18.4µs ± 2% -2.21% (p=0.000 n=9+10) GlyphNRGBA32Over-8 99.1µs ± 2% 95.9µs ± 3% -3.23% (p=0.000 n=10+10) GlyphNRGBA32Src-8 65.6µs ± 3% 62.8µs ± 2% -4.36% (p=0.000 n=10+10) GlyphNRGBA64Over-8 376µs ± 4% 370µs ± 2% ~ (p=0.063 n=10+10) GlyphNRGBA64Src-8 238µs ± 3% 233µs ± 1% -2.21% (p=0.000 n=9+10) GlyphNRGBA128Over-8 1.52ms ± 2% 1.48ms ± 0% -2.11% (p=0.000 n=10+8) GlyphNRGBA128Src-8 951µs ± 3% 935µs ± 1% -1.69% (p=0.013 n=10+9) GlyphNRGBA256Over-8 6.00ms ± 1% 5.87ms ± 3% -2.12% (p=0.002 n=10+10) GlyphNRGBA256Src-8 3.94ms ± 2% 3.80ms ± 2% -3.64% (p=0.000 n=10+10) A comparison of the non-SIMD and SIMD versions: name time/op FixedAccumulateMask16-8 237ns ± 0% FixedAccumulateMaskSIMD16-8 80.0ns ± 1% FloatingAccumulateMask16-8 413ns ± 2% FloatingAccumulateMaskSIMD16-8 166ns ± 0% FixedAccumulateMask64-8 3.42µs ± 0% FixedAccumulateMaskSIMD64-8 1.09µs ± 0% FloatingAccumulateMask64-8 6.92µs ± 0% FloatingAccumulateMaskSIMD64-8 2.47µs ± 1% Change-Id: Ib6980e5975ed2842ff2a372f76dd5f2e95c5526c Reviewed-on: https://go-review.googlesource.com/30898 Reviewed-by: David Crawshaw <crawshaw@golang.org>
2016-10-13 05:50:52 +02:00
ADDQ ${{.DstElemSize1}}, DI
ADDQ $4, SI
JMP {{.ShortName}}Loop1
{{.ShortName}}End:
RET