The following commands show a simple assembly file. Then it is built two times. The first build processes the file as GNU-syntax assembly. The second build processes the file as TI-syntax assembly. Both builds use -O0, an option which is not relevant for assembly. The GNU-syntax build emits no diagnostic. The TI-syntax build emits a diagnostic.

% type file.asm
        .text
        nop

% tiarmclang -c -O0 file.asm

% tiarmclang -c -O0 -xti-asm file.asm
tiarmclang: warning: argument unused during compilation: '-O0' [-Wunused-command-line-argument]