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/* PR17544 Incorrect -Wunreachable-code warning

   Origin: Giovanni Bajo

   In C99 we append a "return 0;" when finishing a function, but it was

   not given a source location.  The gimplifier thinks a return statement

   needs a locus so it would add one, making the compiler generated code

   visible to the unreachable code warning.  */

/* { dg-do compile } */

/* { dg-options "-std=c99 -O -Wunreachable-code" } */

int main (void)    // 1

{                  // 2

  return 0;        // 3

}                  // 4