Comment 6 for bug 1608180

Can you show us your C[XX]FLAGS? Perhaps your CPU does not support some instruction(s) that compiler is generating due to presence of -march=<wrong-cpu> or even -march=native. Version 0.14.1's code might not trigger this particular code generation logic (optimization) in the compiler.

You might also want to set -O0 to disable all optimizations, or try GCC instead of Clang (default compiler on contemporary FreeBSD versions) and see if it changes anything.