test for EMCC_OPTIMIZE_NORMALLY

1 files changed, 56 insertions, 0 deletions

diff --git a/tests/runner.py b/tests/runner.py
index 9cf40543..e9accf2b 100755
--- a/tests/runner.py
+++ b/tests/runner.py
@@ -9659,6 +9659,62 @@ seeked= file.
       code = open('a.out.js').read()
       assert 'SAFE_HEAP' in code, 'valid -s option had an effect'
 
+    def test_optimize_normally(self):
+      assert not os.environ.get('EMCC_OPTIMIZE_NORMALLY')
+      assert not os.environ.get('EMCC_DEBUG')
+
+      try:
+        os.environ['EMCC_OPTIMIZE_NORMALLY'] = '1'
+        os.environ['EMCC_DEBUG'] = '1'
+
+        open(self.in_dir('main.cpp'), 'w').write(r'''
+          extern "C" {
+            void something();
+          }
+
+          int main() {
+            something();
+            return 0;
+          }
+        ''')
+        open(self.in_dir('supp.cpp'), 'w').write(r'''
+          #include <stdio.h>
+
+          extern "C" {
+            void something() {
+              printf("yello\n");
+            }
+          }
+        ''')
+        out, err = Popen([PYTHON, EMCC, self.in_dir('main.cpp'), '-O2', '-o', 'main.o'], stdout=PIPE, stderr=PIPE).communicate()
+        assert "emcc: LLVM opts: ['-disable-inlining', '-O3']" in err
+        assert ' with -O3 since EMCC_OPTIMIZE_NORMALLY defined' in err
+
+        out, err = Popen([PYTHON, EMCC, self.in_dir('supp.cpp'), '-O2', '-o', 'supp.o'], stdout=PIPE, stderr=PIPE).communicate()
+        assert "emcc: LLVM opts: ['-disable-inlining', '-O3']" in err
+        assert ' with -O3 since EMCC_OPTIMIZE_NORMALLY defined' in err
+
+        out, err = Popen([PYTHON, EMCC, self.in_dir('main.o'), self.in_dir('supp.o'), '-O2', '-o', 'both.o'], stdout=PIPE, stderr=PIPE).communicate()
+        assert "emcc: LLVM opts: ['-disable-inlining', '-O3']" not in err
+        assert ' with -O3 since EMCC_OPTIMIZE_NORMALLY defined' not in err
+        assert 'despite EMCC_OPTIMIZE_NORMALLY since not source code' in err, err
+
+        out, err = Popen([PYTHON, EMCC, self.in_dir('main.cpp'), self.in_dir('supp.cpp'), '-O2', '-o', 'both2.o'], stdout=PIPE, stderr=PIPE).communicate()
+        assert "emcc: LLVM opts: ['-disable-inlining', '-O3']" in err
+        assert ' with -O3 since EMCC_OPTIMIZE_NORMALLY defined' in err
+
+        for last in ['both.o', 'both2.o']:
+          out, err = Popen([PYTHON, EMCC, self.in_dir('both.o'), '-O2', '-o', last + '.js'], stdout=PIPE, stderr=PIPE).communicate()
+          assert "emcc: LLVM opts: ['-disable-inlining', '-O3']" not in err
+          assert ' with -O3 since EMCC_OPTIMIZE_NORMALLY defined' not in err
+          output = run_js(last + '.js')
+          assert 'yello' in output, 'code works'
+        assert open('both.o.js').read() == open('both2.o.js').read()
+
+      finally:
+        del os.environ['EMCC_OPTIMIZE_NORMALLY']
+        del os.environ['EMCC_DEBUG']
+
     def test_conftest_s_flag_passing(self):
       open(os.path.join(self.get_dir(), 'conftest.c'), 'w').write(r'''
         int main() {