[patch] Fix PR middle-end/53590

[Richard Guenther]

On Fri, Jun 15, 2012 at 6:48 PM, Eric Botcazou <ebotcazou@adacore.com> wrote:
>> Btw, I think we should enable this flag by default for all languages but
>> Java so that if you enable -fnon-call-exceptions for C or C++ you don't get
>> too many spurious exceptions from dead code.
>
> The attached patch enables it for the C family of languages (I'm not too sure
> about the other languages).  It also adds the missing bits related to inlining
> (with the annoying FIXME for LTO in can_inline_edge_p).
>
> Bootstrapped/regtested on x86_64-suse-linux, OK for mainline?

Ok.

Thanks,
Richard.

>
> 2012-06-15  Eric Botcazou  <ebotcazou@adacore.com>
>
>        PR middle-end/53590
>        * doc/invoke.texi (-fdelete-dead-exceptions): Update.
>        * cif-code.def (DEAD_EXCEPTIONS): New code.
>        * ipa-inline.c (can_inline_edge_p): Return false if the caller can
>        delete dead exceptions but the callee cannot.
>        * tree-inline.c (initialize_cfun): Copy can_delete_dead_exceptions.
> c-family/
>        * c-opts.c (c_common_init_options_struct): Set
>        opts->x_flag_delete_dead_exceptions to 1.
>
>
> --
> Eric Botcazou