assemble_alias in varasm.c sets varpool->alias to 1, but fails to set
varpool->extra_name to anything.
This leads to trouble further down the line. In my case, varpool_remove_node
fails with a NULL-pointer exception.
This appears to be target/host independent. So far, the only work around I have
is to disable optimization.
Test case to follow ...
--
Summary: varpool SEGV
Product: gcc
Version: 4.6.0
Status: UNCONFIRMED
Keywords: ice-on-valid-code
Severity: critical
Priority: P3
Component: middle-end
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: ams at gcc dot gnu dot org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44197
