On Thu, Oct 6, 2022 at 7:27 PM Eric Botcazou via Gcc-patches
<gcc-patches@gcc.gnu.org> wrote:
>
> Hi,
>
> even at -O0 there may be a fair amount of DF computation performed when
> compiling large units and part of it appears to be useless.
>
> Bootstrapped/regtested on x86-64/Linux, OK for the mainline?

OK.

>
> 2022-10-06  Eric Botcazou  <ebotca...@adacore.com>
>
>         * function.cc (thread_prologue_and_epilogue_insns): Update only entry
>         and exit blocks when not optimizing.  Remove dead statement.
>
> --
> Eric Botcazou

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