[tree-ssa] live analysis on local static functions

[Andrew MacLeod]

On Tue, 2003-10-14 at 13:03, law@redhat.com wrote:
> In message <1066149766.10504.1982.camel@p4>, Andrew MacLeod writes:

>  >
>  >I get out of ssa producing:
>  >
>  >q ()
>  >{
>  >  char * <U1244>;
>  >  char * retval.2;
>  >  char * T.1;
>  >
>  >
>  >  # BLOCK 0.  PRED: -1.  SUCC: 1.
>  >  {
>  >    {
>  >      static char * a = (char *)"";
>  >
>  >
>  >      #   VUSE <a_1>;
>  >      <U1244> = a;
>  >      goto <U11d0>;;
>  >    };
>  >
>  >    # BLOCK 1.  PRED: 0.  SUCC: 2.
>  >    <U11d0>:;;
>  >    (void)0;
>  >  };
>  >
>  >  # BLOCK 2.  PRED: 1.  SUCC: -2.
>  >  (void)0;
>  >  return <U1244>;;
>  >}
>  >

> But it still seems to me that something is missing the fact that "a"
> is actually used.  If "a" is marked as used, then everything ought to
> work as expected.

I am currently looking at why the VUSE <a_1> didnt mark 'a' as used.

Andrew