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go/src/pkg/runtime/arch_386.h
Rémy Oudompheng 045dbeaf05 cmd/gc, runtime: inline append in frontend.
A new transformation during walk turns append calls
into a combination of growslice and memmove.

benchmark                     old ns/op    new ns/op    delta
BenchmarkAppend                     141          141   +0.00%
BenchmarkAppend1Byte                 18           11  -39.56%
BenchmarkAppend4Bytes                19           10  -42.63%
BenchmarkAppend7Bytes                18           10  -42.16%
BenchmarkAppend8Bytes                18           10  -40.44%
BenchmarkAppend15Bytes               19           11  -41.67%
BenchmarkAppend16Bytes               19           11  -41.97%
BenchmarkAppend32Bytes               23           14  -38.82%
BenchmarkAppendStr1Byte              14           10  -23.78%
BenchmarkAppendStr4Bytes             14           11  -21.13%
BenchmarkAppendStr8Bytes             14           10  -25.17%
BenchmarkAppendStr16Bytes            19           11  -41.45%
BenchmarkAppendStr32Bytes            18           14  -19.44%
BenchmarkAppendSpecialCase           62           63   +1.77%

R=golang-dev, khr, cshapiro, rsc, dave
CC=golang-dev
https://golang.org/cl/12815046
2013-09-16 20:31:21 -04:00

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C

// Copyright 2011 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.
enum {
thechar = '8',
BigEndian = 0,
CacheLineSize = 64,
RuntimeGogoBytes = 64,
PCQuantum = 1
};