https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81142
tomas_paukrt at conel dot cz changed: What |Removed |Added ---------------------------------------------------------------------------- Known to fail| |4.9.4, 5.4.0, 6.3.0 --- Comment #5 from tomas_paukrt at conel dot cz --- I was able to reproduce this bug with GCC 5.4.0 and 6.3.0. GCC 7.1.0 generates slightly different assembler code and I have not been able to trigger this bug yet.