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Source file test/fixedbugs/bug456.go

Documentation: test/fixedbugs

  // 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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