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[Bug lto/43038] DECL_PRESERVE_P or attribute((used)) static globals not completely preserved with -flto
- From: "d.g.gorbachev at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Tue, 1 Mar 2011 12:46:47 +0000
- Subject: [Bug lto/43038] DECL_PRESERVE_P or attribute((used)) static globals not completely preserved with -flto
- Auto-submitted: auto-generated
- References: <bug-43038-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43038
--- Comment #8 from Dmitry Gorbachev <d.g.gorbachev at gmail dot com> 2011-03-01 12:46:39 UTC ---
> The problem is that statics need to be mangled, so they persist
> as i.1234 instead. Really refering to a local symbol in asm is
> going to be difficult with LTO (any global or other static symbol
> with name i will cause a non-resolvable conflict).
One solution is to introduce a new attribute, say "nomangle", and shift
responsibility for possible conflicts on a user.