> Hello.
>
> Following IPA ICF patch restricts thunk creation for static-chain thunks.
> Patch can bootstrap on x86_64-linux-pc and no new regression has been seen.
>
> Ready for thunk?
> Thanks,
> Martin
> >From b247009735cd294b3fd8b727905cb47b5cdaeb51 Mon Sep 17 00:00:00 2001
> From: mliska <mli...@suse.cz>
> Date: Mon, 22 Dec 2014 10:46:41 +0100
> Subject: [PATCH] IPA ICF: Fix for PR ipa/63851 and ipa/63852.
>
> gcc/ChangeLog:
>
> 2014-12-22 Martin Liska <mli...@suse.cz>
>
> PR ipa/63851
> PR ipa/63852
> * ipa-icf.c (sem_function::merge): Ignore merge operation
> for a thunk created from static chain.
OK.
Please add also the code to match TARGET_OPTION and OPTIMIZATION nodes
Honza
> ---
> gcc/ipa-icf.c | 8 ++++++++
> 1 file changed, 8 insertions(+)
>
> diff --git a/gcc/ipa-icf.c b/gcc/ipa-icf.c
> index 6cdc21b..b8ef6e0 100644
> --- a/gcc/ipa-icf.c
> +++ b/gcc/ipa-icf.c
> @@ -694,6 +694,14 @@ sem_function::merge (sem_item *alias_item)
> return 0;
> }
>
> + if (DECL_STATIC_CHAIN (alias->decl))
> + {
> + if (dump_file)
> + fprintf (dump_file, "Thunk creation is risky for static-chain
> functions.\n\n");
> +
> + return 0;
> + }
> +
> alias->icf_merged = true;
> ipa_merge_profiles (local_original, alias);
> alias->create_wrapper (local_original);
> --
> 2.1.2
>
