Stupid question, but how do I compile C files to eir?

[Its-Jakey]

I tried using 8cc in out/8cc to compile a c file but all I get when I run 8cc is

`Usage: 8cc [ -E ][ -a ] [ -h ]

-I add to include path
-E print preprocessed source code
-D name Predefine name as a macro
-D name=def
-S Stop before assembly (default)
-c Do not run linker (default)
-U name Undefine name
-fdump-ast print AST
-fdump-stack Print stacktrace
-fno-dump-source Do not emit source code as assembly comment
-o filename Output to the specified file
-g Do nothing at this moment
-Wall Enable all warnings
-Werror Make all warnings into errors
-O Does nothing at this moment
-m64 Output 64-bit code (default)
-w Disable all warnings
-h print this help

One of -a, -c, -E or -S must be specified.
`
i still get this message even if i specify '-a'
What am i doing wrong?

[none-None1]

It seems that you should specify -S instead:

./8cc test.c -o test.eir -S