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// run
// Copyright 2012 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.
// Issue 3907: out of fixed registers in nested byte multiply.
// Used to happen with both 6g and 8g.
package main
func F(a, b, c, d uint8) uint8 {
return a * (b * (c * (d *
(a * (b * (c * (d *
(a * (b * (c * (d *
a * (b * (c * d)))))))))))))
}
func main() {
var a, b, c, d uint8 = 1, 1, 1, 1
x := F(a, b, c, d)
if x != 1 {
println(x)
panic("x != 1")
}
}
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