Add Subzero to test scripts.

pnacl/driver/pnacl-translate.py

 #!/usr/bin/python
 # Copyright (c) 2012 The Native Client Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 import driver_tools
 import filetype
 import ldtools
 import multiprocessing
 import os
@@ skipping 173 matching lines @@
                   "env.append('LLC_FLAGS_EXTRA', $0)"),
   ( '(-pnaclabi-verify=.*)', "env.append('LLC_FLAGS_EXTRA', $0)"),
   ( '(-pnaclabi-verify-fatal-errors=.*)', "env.append('LLC_FLAGS_EXTRA', $0)"),
   # Allow overriding the -O level.
   ( '-O([0-3])', "env.set('OPT_LEVEL', $0)"),
 
   # This adds arch specific flags to the llc invocation aimed at
   # improving translation speed at the expense of code quality.
   ( '-translate-fast',  "env.set('FAST_TRANSLATION', '1')"),
   # Allow Subzero.
-  ( '--sz', "env.set('USE_SZ', '1')"),
+  ( '--use-sz', "env.set('USE_SZ', '1')"),
 
   ( '-nostdlib',       "env.set('USE_STDLIB', '0')"),
 
   # Disables the default libraries.
   # This flag is needed for building libgcc_s.so.
   ( '-nodefaultlibs',  "env.set('USE_DEFAULTLIBS', '0')"),
 
   ( '--noirt',         "env.set('USE_IRT', '0')"),
   ( '--noirtshim',     "env.set('USE_IRT_SHIM', '0')"),
 
@@ skipping 379 matching lines @@
   The default output file type is .nexe, which assumes that the input file
   type is .pexe.  Native object files and assembly can also be generated
   with the -S and -c commandline flags.
 
 ADVANCED OPTIONS:
   -mattr=<+feat1,-feat2>  Toggle specific cpu features on and off.
   -mcpu=<cpu-name>        Target a specific cpu type.  Tunes code as well as
                           turns cpu features on and off.
   -S                      Generate native assembly only.
   -c                      Generate native object file only.
+  --use-sz                Use the Subzero fast translator.
   --pnacl-sb              Use the translator which runs inside the NaCl sandbox.
                           Applies to both pnacl-llc and pnacl-sz translators.
   -O[0-3]                 Change translation-time optimization level.
 """