test for FORCE_ALIGNED_MEMORY to reduce unaligned reads in bullet

1 files changed, 25 insertions, 10 deletions

diff --git a/tests/runner.py b/tests/runner.py
index 8ed8da65..6db4609e 100755
--- a/tests/runner.py
+++ b/tests/runner.py
@@ -7869,15 +7869,29 @@ def process(filename):
         Settings.SAFE_HEAP_LINES = ['btVoronoiSimplexSolver.h:40', 'btVoronoiSimplexSolver.h:41',
                                     'btVoronoiSimplexSolver.h:42', 'btVoronoiSimplexSolver.h:43']
 
-      self.do_run(open(path_from_root('tests', 'bullet', 'Demos', 'HelloWorld', 'HelloWorld.cpp'), 'r').read(),
-                   [open(path_from_root('tests', 'bullet', 'output.txt'), 'r').read(), # different roundings
-                    open(path_from_root('tests', 'bullet', 'output2.txt'), 'r').read(),
-                    open(path_from_root('tests', 'bullet', 'output3.txt'), 'r').read()],
-                   libraries=self.get_library('bullet', [os.path.join('src', '.libs', 'libBulletDynamics.a'),
-                                                          os.path.join('src', '.libs', 'libBulletCollision.a'),
-                                                          os.path.join('src', '.libs', 'libLinearMath.a')],
-                                               configure_args=['--disable-demos','--disable-dependency-tracking']),
-                   includes=[path_from_root('tests', 'bullet', 'src')])
+      def test():
+        self.do_run(open(path_from_root('tests', 'bullet', 'Demos', 'HelloWorld', 'HelloWorld.cpp'), 'r').read(),
+                     [open(path_from_root('tests', 'bullet', 'output.txt'), 'r').read(), # different roundings
+                      open(path_from_root('tests', 'bullet', 'output2.txt'), 'r').read(),
+                      open(path_from_root('tests', 'bullet', 'output3.txt'), 'r').read()],
+                     libraries=self.get_library('bullet', [os.path.join('src', '.libs', 'libBulletDynamics.a'),
+                                                            os.path.join('src', '.libs', 'libBulletCollision.a'),
+                                                            os.path.join('src', '.libs', 'libLinearMath.a')],
+                                                 configure_args=['--disable-demos','--disable-dependency-tracking']),
+                     includes=[path_from_root('tests', 'bullet', 'src')])
+      test()
+
+      assert 'asm2g' in test_modes
+      if self.run_name == 'asm2g':
+        # Test forced alignment
+        print >> sys.stderr, 'testing FORCE_ALIGNED_MEMORY'
+        old = open('src.cpp.o.js').read()
+        Settings.FORCE_ALIGNED_MEMORY = 1
+        test()
+        new = open('src.cpp.o.js').read()
+        print len(old), len(new), old.count('tempBigInt'), new.count('tempBigInt')
+        assert len(old) > len(new)
+        assert old.count('tempBigInt') > new.count('tempBigInt')
 
     def test_poppler(self):
       if self.emcc_args is None: return self.skip('very slow, we only do this in emcc runs')
@@ -9306,6 +9320,7 @@ finalizing 3 (global == 0)
   def make_run(fullname, name=-1, compiler=-1, llvm_opts=0, embetter=0, quantum_size=0, typed_arrays=0, emcc_args=None, env='{}'):
     exec('''
 class %s(T):
+  run_name = '%s'
   env = %s
 
   def tearDown(self):
@@ -9370,7 +9385,7 @@ class %s(T):
     Building.pick_llvm_opts(3)
 
 TT = %s
-''' % (fullname, env, fullname, fullname, compiler, str(emcc_args), llvm_opts, embetter, quantum_size, typed_arrays, fullname))
+''' % (fullname, fullname, env, fullname, fullname, compiler, str(emcc_args), llvm_opts, embetter, quantum_size, typed_arrays, fullname))
     return TT
 
   # Make one run with the defaults