[PATCH] Cleanup parameter of vectorizable_live_operation

[Bernd Edlinger]

Hi Richard,

I became aware of this while looking at the -Wshadow=compatible-local warnings.
The function vectorizable_live_operation uses a parameter called "vec_stmt"
that is shadowed by something also called "vec_stmt".  But in this case,
the vec_stmt actually only used as a boolean, i.e. pointer is NULL or not.

This changes the parameter vec_stmt to vec_stmt_p, and propagates that
change to can_vectorize_live_stmts.


Bootstrapped and reg-tested on x86_64-pc-linux-gnu.
Is it OK for trunk?


Thanks
Bernd.
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