mirror of
https://github.com/golang/go
synced 2024-11-20 08:54:40 -07:00
42 lines
907 B
Go
42 lines
907 B
Go
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// Copyright 2014 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 ignore
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package main
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import (
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"flag"
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"fmt"
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"log"
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"os"
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)
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func main() {
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flag.Parse()
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if flag.NArg() > 0 {
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f, err := os.Create(flag.Arg(0))
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if err != nil {
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log.Fatal(err)
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}
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os.Stdout = f
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}
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fmt.Printf("// generated by wbfat_gen.go; use go generate\n\n")
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fmt.Printf("package runtime\n")
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for i := uint(2); i <= 4; i++ {
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for j := 1; j < 1<<i; j++ {
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fmt.Printf("\n//go:nosplit\n")
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fmt.Printf("func writebarrierfat%0*b(dst *[%d]uintptr, _ *byte, src [%d]uintptr) {\n", int(i), j, i, i)
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for k := uint(0); k < i; k++ {
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if j&(1<<(i-1-k)) != 0 {
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fmt.Printf("\twritebarrierptr(&dst[%d], src[%d])\n", k, k)
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} else {
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fmt.Printf("\tdst[%d] = src[%d]\n", k, k)
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}
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}
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fmt.Printf("}\n")
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}
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}
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}
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