Fixed frontend hpvm-clang flags

hpvm/projects/torch2hpvm/torch2hpvm/compile.py

@@ -173,6 +173,8 @@ class ModelExporter:
 
         args = [
             "hpvm-clang",
+            "-O3",
+            "-fno-exceptions",
             str(self.codefile),
             str(output_binary),
             *self.compile_args,