Don't unroll loops whose header block's address is taken. This is part of a futile attempt to not "break" bizzaro code like this:
Don't unroll loops whose header block's address is taken.
This is part of a futile attempt to not "break" bizzaro
code like this:

 l1:
  printf("l1: %p\n", &&l1);
  ++x;

  if( x < 3 ) goto l1;


Previously we'd fold &&l1 to 1, which is fine per our semantics
but not helpful to the user.



git-svn-id: 0ff597fd157e6f4fc38580e8d64ab130330d2411@125827 91177308-0d34-0410-b5e6-96231b3b80d8

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