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Re: [PATCH 9d] Don't call delete_tree_ssa for __RTL functions
On Tue, Jan 10, 2017 at 3:38 AM, David Malcolm <dmalcolm@redhat.com> wrote:
> gcc/ChangeLog:
> * final.c (rest_of_clean_state): Don't call delete_tree_ssa for
> __RTL functions.
Heh, so you are lucky that nothing looks at this. MEM_EXPRs can
contain SSA names
these days (for points-to info), but I suppose you don't parse
MEM_EXPRs fully yet.
I'm somewhat inclined to tell you calling init_tree_ssa () for __RTL
functions...
Richard.
> ---
> gcc/final.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/gcc/final.c b/gcc/final.c
> index 8a4c9f8..2483381 100644
> --- a/gcc/final.c
> +++ b/gcc/final.c
> @@ -4699,7 +4699,8 @@ rest_of_clean_state (void)
>
> free_bb_for_insn ();
>
> - delete_tree_ssa (cfun);
> + if (cfun->gimple_df)
> + delete_tree_ssa (cfun);
>
> /* We can reduce stack alignment on call site only when we are sure that
> the function body just produced will be actually used in the final
> --
> 1.8.5.3
>