http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59654
janus at gcc dot gnu.org changed: What |Removed |Added ---------------------------------------------------------------------------- Attachment #31557|0 |1 is obsolete| | --- Comment #11 from janus at gcc dot gnu.org --- Created attachment 31560 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=31560&action=edit further reduced test case Here is a further reduced test case. The behavior is the same as before, but it is extremely shaky. Adding or removing completely unused statements will influence the runtime behavior. Classical Heisenbug.