Generate a minimal llvm2ice.

tests_lit/lit.cfg

 # Taken from utils/lit/tests in the LLVM tree and hacked together to support
 # our tests.
 
 # -*- Python -*-
 
 import os
 import re
 import sys
 
 import lit.formats
@@ skipping 21 matching lines @@
 config.substitutions.append(('%{python}', sys.executable))
 
 pydir = os.path.join(bin_root, 'pydir')
 
 # Finding LLVM binary tools. All tools used in the tests must be listed in
 # the llvmbintools list.
 llvmbinpath = os.path.abspath(os.environ.get('LLVM_BIN_PATH'))
 
 # Finding Subzero tools
 llvm2icetool = os.path.join(bin_root, 'llvm2ice')
+minllvm2icetool = os.path.join(bin_root, 'minllvm2ice')
 
 # Convert LLVM source to PNaCl bitcode, read using the
 # Subzero bitcode reader, and then translate.
 config.substitutions.append(
   ('%p2i', ' '.join([os.path.join(pydir, 'run-llvm2ice.py'),
                      '--llvm2ice', llvm2icetool,
-                     '--llvm-bin-path', llvmbinpath
+                       '--llvm-bin-path', llvmbinpath
                     ])))
 
+# Using min Subzero, convert LLVM source to PNaCl bitcode, read using
+# the Subzero bitcode reader, and then translate.
+config.substitutions.append(
+  ('%minp2i', ' '.join([os.path.join(pydir, 'run-llvm2ice.py'),
+                       '--llvm2ice', minllvm2icetool,
+                       '--llvm-bin-path', llvmbinpath
+                       ])))
+
 # Convert LLVM source to PNaCl bitcode, read using the PNaCl bitcode reader,
 # convert to ICE using the ICE Converter, and then translate.
 # TODO(kschimpf) Deprecated, remove once p2i working.
 config.substitutions.append(
   ('%l2i', ' '.join([os.path.join(pydir, 'run-llvm2ice.py'),
                      '--llvm', '--llvm2ice', llvm2icetool,
                      '--llvm-bin-path', llvmbinpath
                     ])))
 
 # Read LLVM source, convert to ICE using the ICE converter, and then translate.
@@ skipping 26 matching lines @@
 # Add a feature to detect the Python version.
 config.available_features.add("python%d.%d" % (sys.version_info[0],
                                                sys.version_info[1]))
 
 # Debugging output
 def dbg(s):
   print '[DBG] %s' % s
 
 dbg('bin_root = %s' % bin_root)
 dbg('llvmbinpath = %s' % llvmbinpath)