Generate a minimal llvm2ice.

tests_lit/lit.cfg

Index: tests_lit/lit.cfg
diff --git a/tests_lit/lit.cfg b/tests_lit/lit.cfg
index 825f7d2b3051d4bc366080b71cdbb696fc540b91..de8c1317d3d917cbe0632bb276ee3900de452f11 100644
--- a/tests_lit/lit.cfg
+++ b/tests_lit/lit.cfg
@@ -39,15 +39,24 @@ 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.