go/test/fixedbugs/bug288.go

// compile

// Copyright 2010 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.

// Used to run out of registers on 8g.  Issue 868.

package main

func main() {
	var r uint32
	var buf [4]byte
	a := buf[0:4]
	r = (((((uint32(a[3]) << 8) | uint32(a[2])) << 8) |
		uint32(a[1])) << 8) | uint32(a[0])
	_ = r
}
test: use testlib (third 100) X ,s;^// \$G (\$D/)?\$F\.go $;// compile;g X ,s;^// \$G (\$D/)?\$F\.go && \$L \$F\.\$A $;// build;g X ,s;^// \$G (\$D/)?\$F\.go && \$L \$F\.\$A && \./\$A\.out $;// run;g X ,s;^// errchk \$G( -e)? (\$D/)?\$F\.go $;// errorcheck;g R=golang-dev, bradfitz CC=golang-dev https://golang.org/cl/5656083 2012-02-16 21:49:59 -07:00			`// compile`
8g: out of register bug fix Fixes #868. R=ken2 CC=golang-dev https://golang.org/cl/1695049 2010-06-30 21:45:50 -06:00
			`// Copyright 2010 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.`

			`// Used to run out of registers on 8g. Issue 868.`

			`package main`

			`func main() {`
			`var r uint32`
			`var buf [4]byte`
			`a := buf[0:4]`
			`r = (((((uint32(a[3]) << 8) \| uint32(a[2])) << 8) \|`
			`uint32(a[1])) << 8) \| uint32(a[0])`
			`_ = r`
			`}`