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// PR optimization/13067

// Origin: 

// This used to fail on the tree-ssa because of "out-of-ssa"

//  We might have a valid variable, but not a valid value when trying to find

//  useless statements created by out-of-ssa translation. In this case

//  val will be set to null, then later dereferenced.  Bad.

// { dg-do compile }

// { dg-options "-Os" }

struct Iterator

{

  Iterator operator++();

};

void GetChar(char* aChar);

void foo(char aChar)

{

  char quote;

  Iterator end;

  while (1) {

    if (aChar == '"')

      GetChar(&aChar);

    switch (aChar) {

    case 'a':

      ++end;

      if (quote) {

        if (quote == aChar) {

          quote = 0;

        }

      } else {

        quote = aChar;

      }

    }

  }

}