> Bootstrapped/regtested on x86_64-pc-linux-gnu
>
> gcc/ChangeLog:
>
> * lto-streamer.cc (lto_get_section_name): Remove random_seed in WPA.
This is also OK. (since it lacks explanation - the random suffixes are
added for ld -r to work. This never happens between WPA and ltrans, so
they only consume extra space and confuse the ltrans cache).
> ---
> gcc/lto-streamer.cc | 8 +++-
> 1 file changed, 7 insertions(+), 1 deletion(-)
>
> diff --git a/gcc/lto-streamer.cc b/gcc/lto-streamer.cc
> index 4968fd13413..53275e32618 100644
> --- a/gcc/lto-streamer.cc
> +++ b/gcc/lto-streamer.cc
> @@ -132,11 +132,17 @@ lto_get_section_name (int section_type, const char
> *name,
> doesn't confuse the reader with merged sections.
>
> For options don't add a ID, the option reader cannot deal with them
> - and merging should be ok here. */
> + and merging should be ok here.
> +
> + WPA output is sent to LTRANS directly inside of lto-wrapper, so name
> + uniqueness for external tools is not needed.
> + Randomness would inhibit incremental LTO. */
>if (section_type == LTO_section_opts)
> strcpy (post, "");
>else if (f != NULL)
> sprintf (post, "." HOST_WIDE_INT_PRINT_HEX_PURE, f->id);
> + else if (flag_wpa)
> +strcpy (post, ".0");
Con't post be just empty string?
>else
> sprintf (post, "." HOST_WIDE_INT_PRINT_HEX_PURE, get_random_seed
> (false));
>char *res = concat (section_name_prefix, sep, add, post, NULL);
> --
> 2.42.1
>
