mirror of
https://github.com/golang/go
synced 2024-11-24 02:00:20 -07:00
7be97af2ff
Extend the optimization introduced in CL 141118 to the wasm architecture. And for reference, the rules trigger 212 times while building std and cmd $GOOS=js GOARCH=wasm gotip build std cmd $grep -E "Wasm.rules:44(1|2|3|4)" rulelog | wc -l 212 Updates #26498 Change-Id: I153684a2b98589ae812b42268da08b65679e09d1 Reviewed-on: https://go-review.googlesource.com/c/go/+/185477 Run-TryBot: Agniva De Sarker <agniva.quicksilver@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com> Reviewed-by: Richard Musiol <neelance@gmail.com>
65 lines
2.0 KiB
Go
65 lines
2.0 KiB
Go
// asmcheck
|
|
|
|
// Copyright 2018 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.
|
|
|
|
package codegen
|
|
|
|
// This file contains code generation tests related to the handling of
|
|
// string types.
|
|
|
|
func CountRunes(s string) int { // Issue #24923
|
|
// amd64:`.*countrunes`
|
|
return len([]rune(s))
|
|
}
|
|
|
|
func ToByteSlice() []byte { // Issue #24698
|
|
// amd64:`LEAQ\ttype\.\[3\]uint8`
|
|
// amd64:`CALL\truntime\.newobject`
|
|
// amd64:-`.*runtime.stringtoslicebyte`
|
|
return []byte("foo")
|
|
}
|
|
|
|
// Loading from read-only symbols should get transformed into constants.
|
|
func ConstantLoad() {
|
|
// 12592 = 0x3130
|
|
// 50 = 0x32
|
|
// amd64:`MOVW\t\$12592, \(`,`MOVB\t\$50, 2\(`
|
|
// 386:`MOVW\t\$12592, \(`,`MOVB\t\$50, 2\(`
|
|
// arm:`MOVW\t\$48`,`MOVW\t\$49`,`MOVW\t\$50`
|
|
// arm64:`MOVD\t\$12592`,`MOVD\t\$50`
|
|
// wasm:`I64Const\t\$12592`,`I64Store16\t\$0`,`I64Const\t\$50`,`I64Store8\t\$2`
|
|
bsink = []byte("012")
|
|
|
|
// 858927408 = 0x33323130
|
|
// 13620 = 0x3534
|
|
// amd64:`MOVL\t\$858927408`,`MOVW\t\$13620, 4\(`
|
|
// 386:`MOVL\t\$858927408`,`MOVW\t\$13620, 4\(`
|
|
// arm64:`MOVD\t\$858927408`,`MOVD\t\$13620`
|
|
// wasm:`I64Const\t\$858927408`,`I64Store32\t\$0`,`I64Const\t\$13620`,`I64Store16\t\$4`
|
|
bsink = []byte("012345")
|
|
|
|
// 3978425819141910832 = 0x3736353433323130
|
|
// 7306073769690871863 = 0x6564636261393837
|
|
// amd64:`MOVQ\t\$3978425819141910832`,`MOVQ\t\$7306073769690871863`
|
|
// 386:`MOVL\t\$858927408, \(`,`DUFFCOPY`
|
|
// arm64:`MOVD\t\$3978425819141910832`,`MOVD\t\$1650538808`,`MOVD\t\$25699`,`MOVD\t\$101`
|
|
// wasm:`I64Const\t\$3978425819141910832`,`I64Store\t\$0`,`I64Const\t\$7306073769690871863`,`I64Store\t\$7`
|
|
bsink = []byte("0123456789abcde")
|
|
|
|
// 56 = 0x38
|
|
// amd64:`MOVQ\t\$3978425819141910832`,`MOVB\t\$56`
|
|
bsink = []byte("012345678")
|
|
|
|
// 14648 = 0x3938
|
|
// amd64:`MOVQ\t\$3978425819141910832`,`MOVW\t\$14648`
|
|
bsink = []byte("0123456789")
|
|
|
|
// 1650538808 = 0x62613938
|
|
// amd64:`MOVQ\t\$3978425819141910832`,`MOVL\t\$1650538808`
|
|
bsink = []byte("0123456789ab")
|
|
}
|
|
|
|
var bsink []byte
|