Chris Lattner 4a14fbc50c 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.

llvm-svn: 125827

2011-02-18 04:25:21 +00:00

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