https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107679
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Component|fortran |middle-end
Assignee|unassigned at gcc dot gnu.org |rguenth at gcc dot
gnu.org
Status|NEW |ASSIGNED
Priority|P4 |P3
--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> ---
Kind-of, yes. Somehow 'z' got marked for renaming, probably because we removed
a TREE_ADDRESABLE flag. The SSA rewrite wants to replace
<bb 2> [local count: 1073741824]:
z ={v} {CLOBBER};
return;
with an "uninitialized" def, but for PARM_DECLs the default def would be
the actual parameter value. There's nothing wrong with clobbering 'z'
I think, just the into-ssa code isn't prepared for this - the fix would be
to create an anonymous default def in this case.
