[PATCH] Workaround -Wmaybe-uninitialized false positives during profiledbootstrap

[Jakub Jelinek]

On Mon, Jan 19, 2015 at 03:44:20PM +0100, Martin Liška wrote:
> There's a bunch of another places that emit false positives. With following patch,
> I am able to run profiledbootstrap on x86_64-linux-pc and ppc64-linux-pc.

I don't know what we consider standard and where we allow warnings and thus
require --disable-werror, so will defer to Richard.

> --- a/gcc/tree.h
> +++ b/gcc/tree.h
> @@ -3050,6 +3050,11 @@ tree_int_cst_elt_check (tree __t, int __i,
>    return &CONST_CAST_TREE (__t)->int_cst.val[__i];
>  }
>  
> +/* Workaround -Wstrict-overflow false positive during profiledbootstrap.  */
> +
> +#pragma GCC diagnostic push
> +#pragma GCC diagnostic ignored "-Wstrict-overflow"

Just I wonder if this shouldn't be guarded by GCC_VERSION >= something
that actually supports those.
> +
>  inline tree *
>  tree_vec_elt_check (tree __t, int __i,
>                      const char *__f, int __l, const char *__g)
> @@ -3061,6 +3066,8 @@ tree_vec_elt_check (tree __t, int __i,
>    return &CONST_CAST_TREE (__t)->vec.a[__i];
>  }
>  
> +#pragma GCC diagnostic pop
> +
>  inline tree *
>  omp_clause_elt_check (tree __t, int __i,
>                        const char *__f, int __l, const char *__g)

	Jakub