This is the mail archive of the
gcc-bugs@gcc.gnu.org
mailing list for the GCC project.
[Bug lto/52178] [4.7 regression] Ada bootstrap failure in LTO mode
- From: "ebotcazou at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Mon, 13 Feb 2012 13:54:31 +0000
- Subject: [Bug lto/52178] [4.7 regression] Ada bootstrap failure in LTO mode
- Auto-submitted: auto-generated
- References: <bug-52178-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52178
--- Comment #13 from Eric Botcazou <ebotcazou at gcc dot gnu.org> 2012-02-13 13:54:31 UTC ---
> Should PLACEHOLDER_EXPRs even survive gimplification? I see tree.c says
> if they survive until expand we'll ICE - but that comment is probably from
> before gimple/SSA times.
Yes, PLACEHOLDER_EXPRs are effectively useless once gimplification is done.
But they need to be somehow preserved, see free_lang_data_in_one_sizepos in
tree.c.