https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86081
Richard Biener <rguenth at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |RESOLVED Known to work| |6.1.0 Resolution|--- |FIXED Known to fail| |5.5.0 --- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> --- This has been fixed in GCC 6. A workaround is to not use -floop-block. Note that GCC 5 is no longer maintained.