Seprate the comand about SSE in Clang

Hi, guys
I am trying to separate the command form the clang,
such as:
test -msse4.1 sse_test.c -o sse_test

test is just the sub program of the clang,
but I not find how the sse command execute in the clang command.
I just want to separate the command from clang, so it just a program that execute the sse code.

if you know the execute flow about the SSE, please tell me.

Thanks,
yao