Subzero: Allow extra args to be passed to llc and Subzero.

Use --llc to pass extra arguments to pnacl-translate.

Use --sz to pass extra arguments to llvm2ice.

The --stats argument is removed from the script because it is Subzero-only, and can now be done with --sz=--stats .

BUG= none
R=jvoung@chromium.org

Review URL: https://codereview.chromium.org/582593002
1 file changed