set code model back to default as medium is causing the CPU.divide_by_zero_int32…

set code model back to default as medium is causing the CPU.divide_by_zero_int32 unit test to sefault when it throws an exception from the generated code (#328)

src/ngraph/codegen/compiler.cpp

@@ -209,7 +209,7 @@ StaticCompiler::StaticCompiler()
     auto& CGO = m_compiler->getInvocation().getCodeGenOpts();
     CGO.OptimizationLevel = 3;
     CGO.RelocationModel = "static";
-    CGO.CodeModel = "medium";
+    // CGO.CodeModel = "medium";
     CGO.ThreadModel = "posix";
     CGO.FloatABI = "hard";
     CGO.OmitLeafFramePointer = 1;

src/ngraph/codegen/execution_engine.cpp

@@ -42,7 +42,7 @@ bool codegen::ExecutionEngine::add_module(std::unique_ptr<llvm::Module>& module)
                                          .setEngineKind(llvm::EngineKind::JIT)
                                          .setOptLevel(llvm::CodeGenOpt::Aggressive)
                                          .setMCPU(llvm::sys::getHostCPUName())
-                                         .setCodeModel(llvm::CodeModel::Medium)
+                                         //  .setCodeModel(llvm::CodeModel::Medium)
                                          .setErrorStr(&m_jit_error)
                                          .create());