https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94465
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Assignee|unassigned at gcc dot gnu.org |rguenth at gcc dot
gnu.org
Status|UNCONFIRMED |ASSIGNED
Target Milestone|--- |10.0
Last reconfirmed| |2020-04-03
Ever confirmed|0 |1
--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
The issue is that the SSA name is released:
arg:1 <ssa_name 0xffffb7ba1480 type <error_mark 0xffffb7b9ed80>
nothrow
def_stmt
version:3 in-free-list>
so we're dumping something that was freed. Indeed we're dumping
from delete_basic_block and there from cleanup_control_flow_pre
which fails to delete unreachable basic-blocks in postorder
which likely only matters for dumping.
