https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110960
--- Comment #1 from John Platts <john_platts at hotmail dot com> --- Created attachment 55710 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=55710&action=edit Test program to reproduce SatWidenMulPairwiseAdd compilation bug The attached ppc9_sat_widen_mul_pairwise_add_test_080823_4.cpp program needs to be compiled with the "-mcpu=power9 -std=c++17" options, but has no dependencies on Google Highway or CMake. The attached ppc9_sat_widen_mul_pairwise_add_test_080823_4 program runs successfully if compiled with the "-mcpu=power9 -std=c++17" option with GCC 9.