http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56168
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |ASSIGNED
Last reconfirmed| |2013-02-01
AssignedTo|unassigned at gcc dot |rguenth at gcc dot gnu.org
|gnu.org |
Target Milestone|--- |4.8.0
Ever Confirmed|0 |1
--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> 2013-02-01
09:42:36 UTC ---
-f[no-]builtin-* is a frontend option not supported by LTO (nor by Fortran
for example). That it controls also middle-end behavior with respect to
LTO streaming 'pow' as a builtin is a bug I suppose (to be analyzed).
Probably caused by
/* For variables prefer the builtin if one is available. */
else if (TREE_CODE (prevailing->symbol.decl) == FUNCTION_DECL)
{
for (e = first; e; e = e->symbol.next_sharing_asm_name)
if (TREE_CODE (e->symbol.decl) == FUNCTION_DECL
&& DECL_BUILT_IN (e->symbol.decl))
{
prevailing = e;
break;
}
}
and LTO un-conditionally initializing all builtins (well, and that's needed
unless we can do that lazily during streaming as we stream builtin decls
by their DECL_FUNCTION_CODE ...).
Hm. I'll have a looksee.
