Subzero. Native 64-bit int arithmetic on x86-64.

crosstest/test_fcmp_main.cpp

 //===- subzero/crosstest/test_fcmp_main.cpp - Driver for tests ------------===//
 //
 //                        The Subzero Code Generator
 //
 // This file is distributed under the University of Illinois Open Source
 // License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 //
 // Driver for cross testing the fcmp bitcode instruction
@@ skipping 141 matching lines @@
         ++Failures;
         std::cout << Funcs[f].Name << "Vector(" << vectAsString<v4f32>(Value1)
                   << ", " << vectAsString<v4f32>(Value2)
                   << "): sz=" << vectAsString<v4si32>(ResultSz)
                   << " llc=" << vectAsString<v4si32>(ResultLlc) << "\n";
       }
     }
   }
 }
 
-int main(int argc, char **argv) {
+#ifdef X8664_STACK_HACK
+extern "C" int wrapped_main(int argc, char *argv[]) {
+#else  // !defined(X8664_STACK_HACK)
+int main(int argc, char *argv[]) {
+#endif // X8664_STACK_HACK
   size_t TotalTests = 0;
   size_t Passes = 0;
   size_t Failures = 0;
 
   initializeValues();
 
   testsScalar(TotalTests, Passes, Failures);
   testsVector(TotalTests, Passes, Failures);
 
   std::cout << "TotalTests=" << TotalTests << " Passes=" << Passes
             << " Failures=" << Failures << "\n";
   return Failures;
 }