go/test/fixedbugs/bug180.go

// run

// Copyright 2009 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 main

func shift(x int) int { return 1 << (1 << (1 << (uint(x)))) }

func main() {
	if n := shift(2); n != 1<<(1<<(1<<2)) {
		println("bad shift", n)
		panic("fail")
	}
}
test: use testlib (second 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 CC=golang-dev https://golang.org/cl/5673078 2012-02-16 21:49:30 -07:00			`// run`
get function calls out of the way before allocating registers in shift and div. fix behavior when res == a reserved register. R=ken OCL=32765 CL=32767 2009-08-04 20:16:57 -06:00
			`// Copyright 2009 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 main`

delete all uses of panicln by rewriting them using panic or, in the tests, println+panic. gofmt some tests too. R=rsc CC=golang-dev https://golang.org/cl/741041 2010-03-24 17:46:53 -06:00			`func shift(x int) int { return 1 << (1 << (1 << (uint(x)))) }`
get function calls out of the way before allocating registers in shift and div. fix behavior when res == a reserved register. R=ken OCL=32765 CL=32767 2009-08-04 20:16:57 -06:00
			`func main() {`
			`if n := shift(2); n != 1<<(1<<(1<<2)) {`
delete all uses of panicln by rewriting them using panic or, in the tests, println+panic. gofmt some tests too. R=rsc CC=golang-dev https://golang.org/cl/741041 2010-03-24 17:46:53 -06:00			`println("bad shift", n)`
			`panic("fail")`
get function calls out of the way before allocating registers in shift and div. fix behavior when res == a reserved register. R=ken OCL=32765 CL=32767 2009-08-04 20:16:57 -06:00			`}`
			`}`