Factor common code in JIT

[yaron.keren]

Summary

FunctionPassManager initialization code repeats three times, identical.

[yaron.keren]

JIT gone.

lib/ExecutionEngine/JIT/JIT.h

 
   JIT(Module *M, TargetMachine &tm, TargetJITInfo &tji,
       JITMemoryManager *JMM, bool AllocateGVsWithCode);
+
+  /// initPM - initialize the PassManager.
+  void initPM(Module *M, const MutexGuard &locked);
 public:
   ~JIT();
 

lib/ExecutionEngine/JIT/JIT.cpp

   }
 }
 
+void JIT::initPM(Module *M, const MutexGuard &locked) {
+  FunctionPassManager &PM = jitstate->getPM(locked);
+  M->setDataLayout(TM.getDataLayout());
+  PM.add(new DataLayoutPass(M));
+
+  // Turn the machine code intermediate representation into bytes in memory that
+  // may be executed.
+  if (TM.addPassesToEmitMachineCode(PM, *JCE, !getVerifyModules())) {
+    report_fatal_error("Target does not support machine code emission!");
+  }
+
+  // Initialize passes.
+  PM.doInitialization();
+}
+
 JIT::JIT(Module *M, TargetMachine &tm, TargetJITInfo &tji,
          JITMemoryManager *jmm, bool GVsWithCode)
   : ExecutionEngine(M), TM(tm), TJI(tji),

 
   // Add target data
   MutexGuard locked(lock);
-  FunctionPassManager &PM = jitstate->getPM(locked);
-  M->setDataLayout(TM.getDataLayout());
-  PM.add(new DataLayoutPass(M));
-
-  // Turn the machine code intermediate representation into bytes in memory that
-  // may be executed.
-  if (TM.addPassesToEmitMachineCode(PM, *JCE, !getVerifyModules())) {
-    report_fatal_error("Target does not support machine code emission!");
-  }
-
-  // Initialize passes.
-  PM.doInitialization();
+  initPM(M, lock);
 }
 
 JIT::~JIT() {

 
     jitstate = new JITState(M);
 
-    FunctionPassManager &PM = jitstate->getPM(locked);
-    M->setDataLayout(TM.getDataLayout());
-    PM.add(new DataLayoutPass(M));
-
-    // Turn the machine code intermediate representation into bytes in memory
-    // that may be executed.
-    if (TM.addPassesToEmitMachineCode(PM, *JCE, !getVerifyModules())) {
-      report_fatal_error("Target does not support machine code emission!");
-    }
-
-    // Initialize passes.
-    PM.doInitialization();
+    initPM(M, lock);
   }
 
   ExecutionEngine::addModule(M);

   if (!jitstate && !Modules.empty()) {
     jitstate = new JITState(Modules[0]);
 
-    FunctionPassManager &PM = jitstate->getPM(locked);
-    M->setDataLayout(TM.getDataLayout());
-    PM.add(new DataLayoutPass(M));
-
-    // Turn the machine code intermediate representation into bytes in memory
-    // that may be executed.
-    if (TM.addPassesToEmitMachineCode(PM, *JCE, !getVerifyModules())) {
-      report_fatal_error("Target does not support machine code emission!");
-    }
-
-    // Initialize passes.
-    PM.doInitialization();
+    initPM(M, lock);
   }
   return result;
 }