Hi Jeffrey, On Fri, Nov 15, 2019 at 08:05:57PM -0500, Jeffrey Walton wrote: > g++ -DNDEBUG -g2 -O3 -mcpu=power9 -maltivec -c ppc_power9.cpp You forgot -Wall -Wextra, or at the very least -Wall. It probably will help you find this problem., too. -g2 is the default, and -maltivec is implied by -mcpu=power9. Why do you disable assertions (-DNDEBUG)? > ppc_simd.h: In function ‘uint32x4_p VecLoadBE(const byte*)’: > ppc_simd.h:466:24: error: ‘vec_xl_be’ was not declared in this scope > return (uint32x4_p)vec_xl_be(0, CONST_V8_CAST(src)); You didn't #include <altivec.h> in this scope, or you have undefined __VSX__, or undefined something else; it is impossible for us to tell. Always enable warnings, it helps. Segher
