Update auto_update_tests.py for trap-mode flags (#1225)

Author: jgravelle-google

auto_update_tests.py

@@ -49,20 +49,29 @@
           cmd += ['--source-map', os.path.join('test', wasm + '.map'), '-o', 'a.wasm']
           run_command(cmd)
 
+extension_arg_map = {
+  '.wast': [],
+  '.clamp.wast': ['--trap-mode=clamp'],
+  '.js.wast': ['--trap-mode=js'],
+}
 for dot_s_dir in ['dot_s', 'llvm_autogenerated']:
   for s in sorted(os.listdir(os.path.join('test', dot_s_dir))):
     if not s.endswith('.s'): continue
     print '..', s
-    wasm = s.replace('.s', '.wast')
-    full = os.path.join('test', dot_s_dir, s)
-    stack_alloc = ['--allocate-stack=1024'] if dot_s_dir == 'llvm_autogenerated' else []
-    cmd = S2WASM + [full, '--emscripten-glue'] + stack_alloc
-    if s.startswith('start_'):
-      cmd.append('--start')
-    actual = run_command(cmd, stderr=subprocess.PIPE, expected_err='')
-
-    expected_file = os.path.join('test', dot_s_dir, wasm)
-    with open(expected_file, 'w') as o: o.write(actual)
+    for ext, ext_args in extension_arg_map.iteritems():
+      wasm = s.replace('.s', ext)
+      expected_file = os.path.join('test', dot_s_dir, wasm)
+      if ext != '.wast' and not os.path.exists(expected_file):
+        continue
+
+      full = os.path.join('test', dot_s_dir, s)
+      stack_alloc = ['--allocate-stack=1024'] if dot_s_dir == 'llvm_autogenerated' else []
+      cmd = S2WASM + [full, '--emscripten-glue'] + stack_alloc + ext_args
+      if s.startswith('start_'):
+        cmd.append('--start')
+      actual = run_command(cmd, stderr=subprocess.PIPE, expected_err='')
+
+      with open(expected_file, 'w') as o: o.write(actual)
 
 for t in sorted(os.listdir(os.path.join('test', 'print'))):
   if t.endswith('.wast'):