Hi I am trying to find if a code has functions candidates to AVX2 optimizations . I am running the following build commands but with no luck: gcc main.c test.c -o main -ftree-vectorizer-verbose=2 gcc main.c test.c -o main -fopt-info-vec=6 gcc main.c test.c -o main -fdump-tree-vect-details The only one that shows me something gcc -O2 -ftree-vectorizer-verbose=2 -fopt-info-vec-missed main.c test.c -o main But i have to run both -ftree-vectorizer-verbose=2 and -fopt-info-vec-missed I am trying to understand more or if I am doing something wrong Best Regards Victor Rodriguez