On Fri, Jan 13, 2023 at 11:50 AM Eric Botcazou via Gcc-patches
<gcc-patches@gcc.gnu.org> wrote:
>
> Hi,
>
> unlike other IPA passes, the ICF pass can be run at -O0 and some testcases
> rely on this in the testsuite.  Now it effectively creates a tail call so the
> DF information needs be updated in this case after epilogue creation.
>
> Tested on x86-64/Linux, OK for mainline?

OK.

Richard.

>
>
> 2023-01-13  Eric Botcazou  <ebotca...@adacore.com>
>
>         PR rtl-optimization/108274
>         * function.cc (thread_prologue_and_epilogue_insns): Also update the
>         DF information for calls in a few more cases.
>
> --
> Eric Botcazou

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