https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117001
--- Comment #5 from Robert Hardwick <Robert.Hardwick at arm dot com> --- Not working on 11.4.0, i'll try 11.5.0 as you suggest. $ g++ --version g++ (Ubuntu 11.4.0-1ubuntu1~22.04) 11.4.0 g++ -O3 -march=armv8.2-a+sve test.cpp -o test $:~/tools/pytorch/pytorch/argmin_test$ ./test [0, 0, 0, 1, 0, 0, 1, 0] --- yes apologies, forgot the #include <iostream> line in the reproducible example code.