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Source file test/fixedbugs/bug440_32.go

Documentation: test/fixedbugs

  // run
  
  // Test for 8g register move bug.  The optimizer gets confused
  // about 16- vs 32-bit moves during splitContractIndex.
  
  // Issue 3910.
  
  package main
  
  func main() {
  	const c = 0x12345678
  	index, n, offset := splitContractIndex(c)
  	if index != int((c&0xffff)>>5) || n != int(c&(1<<5-1)) || offset != (c>>16)&(1<<14-1) {
  		println("BUG", index, n, offset)
  	}
  }
  
  func splitContractIndex(ce uint32) (index, n, offset int) {
  	h := uint16(ce)
  	return int(h >> 5), int(h & (1<<5 - 1)), int(ce>>16) & (1<<14 - 1)
  }
  

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