[vmkit-commits] [PATCH] Refactor runtime-specific JavaJIT code to separate files

Will Dietz wdietz2 at illinois.edu
Wed Oct 26 18:11:32 PDT 2011


Inlined below.

For now, keeping the "spawn two .inc" files approach since I'm not
sure where else this code would live.

~Will


>From 84314ed791bfd85f1cb5a8d6be2c28dac09c6e7b Mon Sep 17 00:00:00 2001
From: Will Dietz <w at wdtz.org>
Date: Wed, 26 Oct 2011 19:56:09 -0500
Subject: [PATCH 2/3] Refactor runtime-specific JavaJIT code to separate
 files.

---
 lib/J3/Compiler/JavaJIT.cpp          |  235 +---------------------------------
 lib/J3/Compiler/JavaJITClasspath.inc |  228 +++++++++++++++++++++++++++++++++
 lib/J3/Compiler/JavaJITOpenJDK.inc   |    4 +
 3 files changed, 239 insertions(+), 228 deletions(-)
 create mode 100644 lib/J3/Compiler/JavaJITClasspath.inc
 create mode 100644 lib/J3/Compiler/JavaJITOpenJDK.inc

diff --git a/lib/J3/Compiler/JavaJIT.cpp b/lib/J3/Compiler/JavaJIT.cpp
index 6509b96..f693d48 100644
--- a/lib/J3/Compiler/JavaJIT.cpp
+++ b/lib/J3/Compiler/JavaJIT.cpp
@@ -2290,234 +2290,6 @@ void JavaJIT::invokeInterface(uint16 index) {
   }
 }

-void JavaJIT::lowerArraycopy(std::vector<Value*>& args) {
-  Function* meth = TheCompiler->getMethod(upcalls->VMSystemArraycopy, NULL);
-
-  Value* ptr_src = args[0];
-  Value* int32_start = args[1];
-  Value* ptr_dst = args[2];
-  Value* int32_start2 = args[3];
-  Value* int32_length = args[4];
-
-  JITVerifyNull(ptr_src);
-  JITVerifyNull(ptr_dst);
-
-  BasicBlock* label_entry = currentBlock;
-  BasicBlock* label_bb = createBasicBlock("bb");
-  BasicBlock* label_bb2 = createBasicBlock("bb2");
-  BasicBlock* label_bb4 = createBasicBlock("bb4");
-  BasicBlock* label_bb5 = createBasicBlock("bb5");
-  BasicBlock* label_bb12_preheader = createBasicBlock("bb12.preheader");
-  BasicBlock* label_bb7 = createBasicBlock("bb7");
-  BasicBlock* label_bb11 = createBasicBlock("bb11");
-  BasicBlock* label_memmove = createBasicBlock("memmove");
-  BasicBlock* label_backward = createBasicBlock("backward");
-  BasicBlock* label_return = createBasicBlock("return");
-
-  BasicBlock* log_label_entry = createBasicBlock("log_entry");
-  BasicBlock* log_label_bb = createBasicBlock("log_bb");
-
-  // Block entry (label_entry)
-  CallInst* ptr_16 = CallInst::Create(intrinsics->GetVTFunction, ptr_src, "",
-                                      label_entry);
-  CallInst* ptr_17 = CallInst::Create(intrinsics->GetVTFunction, ptr_dst, "",
-                                      label_entry);
-
-  ICmpInst* int1_18 = new ICmpInst(*label_entry, ICmpInst::ICMP_EQ, ptr_16,
-                                   ptr_17, "");
-  BranchInst::Create(label_bb, label_bb2, int1_18, label_entry);
-
-  // Block bb (label_bb)
-  currentBlock = label_bb;
-  CallInst* ptr_20 = CallInst::Create(intrinsics->GetClassFunction,
ptr_src, "",
-                                      label_bb);
-  std::vector<Value*> ptr_21_indices;
-  ptr_21_indices.push_back(intrinsics->constantZero);
-  ptr_21_indices.push_back(intrinsics->OffsetAccessInCommonClassConstant);
-  Instruction* ptr_21 =
-    GetElementPtrInst::Create(ptr_20, ptr_21_indices, "", label_bb);
-  LoadInst* int32_22 = new LoadInst(ptr_21, "", false, label_bb);
-  Value* cmp = BinaryOperator::CreateAnd(int32_22,
intrinsics->IsArrayConstant, "",
-                                         label_bb);
-  Value* zero = ConstantInt::get(Type::getInt16Ty(*llvmContext), 0);
-  ICmpInst* int1_23 = new ICmpInst(*label_bb, ICmpInst::ICMP_NE, cmp,
zero, "");
-  BranchInst::Create(label_bb4, label_bb2, int1_23, label_bb);
-
-
-  // Block bb2 (label_bb2)
-  currentBlock = label_bb2;
-  invoke(meth, args, "", label_bb2);
-  BranchInst::Create(label_return, currentBlock);
-
-
-  // Block bb4 (label_bb4)
-  currentBlock = label_bb4;
-  BinaryOperator* int32_27 = BinaryOperator::Create(Instruction::Add,
-                                                    int32_length, int32_start,
-                                                    "", label_bb4);
-  Value* int32_28 = arraySize(ptr_src);
-
-  ICmpInst* int1_29 = new ICmpInst(*label_bb4, ICmpInst::ICMP_ULE, int32_27,
-                                   int32_28, "");
-  BranchInst::Create(label_bb5, label_bb7, int1_29, label_bb4);
-
-  // Block bb5 (label_bb5)
-  currentBlock = label_bb5;
-  BinaryOperator* int32_31 = BinaryOperator::Create(Instruction::Add,
-                                                    int32_length, int32_start2,
-                                                    "", label_bb5);
-  Value* int32_32 = arraySize(ptr_dst);
-
-  ICmpInst* int1_33 = new ICmpInst(*label_bb5, ICmpInst::ICMP_ULE, int32_31,
-                                   int32_32, "");
-  BranchInst::Create(label_bb12_preheader, label_bb7, int1_33, label_bb5);
-
-  // Block bb12.preheader (label_bb12_preheader)
-  currentBlock = label_bb12_preheader;
-  ICmpInst* int1_35 = new ICmpInst(*label_bb12_preheader, ICmpInst::ICMP_UGT,
-                                   int32_length, intrinsics->constantZero, "");
-  BranchInst::Create(log_label_entry, label_return, int1_35,
label_bb12_preheader);
-
-  // Block bb7 (label_bb7)
-  currentBlock = label_bb7;
-  Value* VTArgs[1] = { Constant::getNullValue(intrinsics->VTType) };
-  throwRuntimeException(intrinsics->ArrayStoreExceptionFunction, VTArgs, 1);
-
-
-
-  // Block entry (label_entry)
-  currentBlock = log_label_entry;
-  Value* ptr_10_indices[2] = { intrinsics->constantZero,
-
intrinsics->OffsetBaseClassInArrayClassConstant };
-  Instruction* temp = new BitCastInst(ptr_20,
intrinsics->JavaClassArrayType, "",
-                                      log_label_entry);
-  Instruction* ptr_10 = GetElementPtrInst::Create(temp, ptr_10_indices, "",
-                                                  log_label_entry);
-
-  LoadInst* ptr_11 = new LoadInst(ptr_10, "", false, log_label_entry);
-
-  Value* ptr_12_indices[2] = { intrinsics->constantZero,
-                               intrinsics->OffsetAccessInCommonClassConstant };
-  Instruction* ptr_12 = GetElementPtrInst::Create(ptr_11, ptr_12_indices, "",
-                                                  log_label_entry);
-  LoadInst* int16_13 = new LoadInst(ptr_12, "", false, log_label_entry);
-
-  BinaryOperator* int32_15 = BinaryOperator::Create(Instruction::And, int16_13,
-
intrinsics->IsPrimitiveConstant,
-                                                    "", log_label_entry);
-  ICmpInst* int1_16 = new ICmpInst(*log_label_entry, ICmpInst::ICMP_EQ,
-                                   int32_15, zero, "");
-  BranchInst::Create(label_bb2, log_label_bb, int1_16, log_label_entry);
-
-  // Block bb (log_label_bb)
-  currentBlock = log_label_bb;
-  Value* ptr_11_indices[2] = { intrinsics->constantZero,
-
intrinsics->OffsetLogSizeInPrimitiveClassConstant };
-  temp = new BitCastInst(ptr_11, intrinsics->JavaClassPrimitiveType, "",
-                         log_label_bb);
-  GetElementPtrInst* ptr_18 = GetElementPtrInst::Create(temp, ptr_11_indices,
-                                                        "", log_label_bb);
-  LoadInst* int32_20 = new LoadInst(ptr_18, "", false, log_label_bb);
-
-  int32_start = BinaryOperator::CreateShl(int32_start, int32_20, "",
-                                          log_label_bb);
-  int32_start2 = BinaryOperator::CreateShl(int32_start2, int32_20, "",
-                                           log_label_bb);
-  int32_length = BinaryOperator::CreateShl(int32_length, int32_20, "",
-                                           log_label_bb);
-
-  ptr_src = new BitCastInst(ptr_src, intrinsics->JavaArrayUInt8Type, "",
-                            log_label_bb);
-
-  ptr_dst = new BitCastInst(ptr_dst, intrinsics->JavaArrayUInt8Type, "",
-                            log_label_bb);
-
-  Value* indexes[3] = { intrinsics->constantZero,
-                        intrinsics->JavaArrayElementsOffsetConstant,
-                        int32_start };
-  Instruction* ptr_42 = GetElementPtrInst::Create(ptr_src, indexes,
-                                                  "", log_label_bb);
-
-  indexes[2] = int32_start2;
-  Instruction* ptr_44 = GetElementPtrInst::Create(ptr_dst, indexes,
-                                                  "", log_label_bb);
-
-  BranchInst::Create(label_memmove, log_label_bb);
-
-  // Block memmove
-  currentBlock = label_memmove;
-  Value* src_int = new PtrToIntInst(ptr_42, intrinsics->pointerSizeType, "",
-                                    currentBlock);
-
-  Value* dst_int = new PtrToIntInst(ptr_44, intrinsics->pointerSizeType, "",
-                                    currentBlock);
-
-  cmp = new ICmpInst(*currentBlock, ICmpInst::ICMP_ULT, dst_int, src_int, "");
-
-  Value* increment = SelectInst::Create(cmp, intrinsics->constantOne,
-                                        intrinsics->constantMinusOne, "",
-                                        currentBlock);
-  BranchInst::Create(label_bb11, label_backward, cmp, currentBlock);
-
-  PHINode* phi_dst_ptr = PHINode::Create(ptr_44->getType(), 3, "", label_bb11);
-  PHINode* phi_src_ptr = PHINode::Create(ptr_44->getType(), 3, "", label_bb11);
-  phi_dst_ptr->addIncoming(ptr_44, currentBlock);
-  phi_src_ptr->addIncoming(ptr_42, currentBlock);
-
-  // Block backward
-  currentBlock = label_backward;
-
-  ptr_42 = GetElementPtrInst::Create(ptr_42, int32_length, "",
-                                     currentBlock);
-
-  ptr_44 = GetElementPtrInst::Create(ptr_44, int32_length, "",
-                                     currentBlock);
-
-  ptr_42 = GetElementPtrInst::Create(ptr_42, intrinsics->constantMinusOne, "",
-                                     currentBlock);
-
-  ptr_44 = GetElementPtrInst::Create(ptr_44, intrinsics->constantMinusOne, "",
-                                     currentBlock);
-
-  phi_dst_ptr->addIncoming(ptr_44, currentBlock);
-  phi_src_ptr->addIncoming(ptr_42, currentBlock);
-
-  BranchInst::Create(label_bb11, currentBlock);
-
-  // Block bb11 (label_bb11)
-  currentBlock = label_bb11;
-  Argument* fwdref_39 = new Argument(Type::getInt32Ty(*llvmContext));
-  PHINode* int32_i_016 = PHINode::Create(Type::getInt32Ty(*llvmContext), 2,
-                                         "i.016", label_bb11);
-  int32_i_016->addIncoming(fwdref_39, label_bb11);
-  int32_i_016->addIncoming(intrinsics->constantZero, log_label_bb);
-
-  LoadInst* ptr_43 = new LoadInst(phi_src_ptr, "", false, label_bb11);
-  new StoreInst(ptr_43, phi_dst_ptr, false, label_bb11);
-
-
-  ptr_42 = GetElementPtrInst::Create(phi_src_ptr, increment, "",
-                                     label_bb11);
-
-  ptr_44 = GetElementPtrInst::Create(phi_dst_ptr, increment, "",
-                                     label_bb11);
-  phi_dst_ptr->addIncoming(ptr_44, label_bb11);
-  phi_src_ptr->addIncoming(ptr_42, label_bb11);
-
-  BinaryOperator* int32_indvar_next =
-    BinaryOperator::Create(Instruction::Add, int32_i_016,
intrinsics->constantOne,
-                           "indvar.next", label_bb11);
-  ICmpInst* int1_exitcond = new ICmpInst(*label_bb11, ICmpInst::ICMP_EQ,
-                                         int32_indvar_next, int32_length,
-                                         "exitcond");
-  BranchInst::Create(label_return, label_bb11, int1_exitcond, label_bb11);
-
-  // Resolve Forward References
-  fwdref_39->replaceAllUsesWith(int32_indvar_next); delete fwdref_39;
-
-  currentBlock = label_return;
-}
-
 DebugLoc JavaJIT::CreateLocation() {
   DebugLoc DL = DebugLoc::get(currentBytecodeIndex, 0, DbgSubprogram);
   return DL;
@@ -2842,3 +2614,10 @@ void JavaJIT::finishExceptions() {
     }
   }
 }
+
+
+#ifdef USE_OPENJDK
+#include "JavaJITOpenJDK.inc"
+#else
+#include "JavaJITClasspath.inc"
+#endif
diff --git a/lib/J3/Compiler/JavaJITClasspath.inc
b/lib/J3/Compiler/JavaJITClasspath.inc
new file mode 100644
index 0000000..1c6211d
--- /dev/null
+++ b/lib/J3/Compiler/JavaJITClasspath.inc
@@ -0,0 +1,228 @@
+
+void JavaJIT::lowerArraycopy(std::vector<Value*>& args) {
+  Function* meth = TheCompiler->getMethod(upcalls->VMSystemArraycopy, NULL);
+
+  Value* ptr_src = args[0];
+  Value* int32_start = args[1];
+  Value* ptr_dst = args[2];
+  Value* int32_start2 = args[3];
+  Value* int32_length = args[4];
+
+  JITVerifyNull(ptr_src);
+  JITVerifyNull(ptr_dst);
+
+  BasicBlock* label_entry = currentBlock;
+  BasicBlock* label_bb = createBasicBlock("bb");
+  BasicBlock* label_bb2 = createBasicBlock("bb2");
+  BasicBlock* label_bb4 = createBasicBlock("bb4");
+  BasicBlock* label_bb5 = createBasicBlock("bb5");
+  BasicBlock* label_bb12_preheader = createBasicBlock("bb12.preheader");
+  BasicBlock* label_bb7 = createBasicBlock("bb7");
+  BasicBlock* label_bb11 = createBasicBlock("bb11");
+  BasicBlock* label_memmove = createBasicBlock("memmove");
+  BasicBlock* label_backward = createBasicBlock("backward");
+  BasicBlock* label_return = createBasicBlock("return");
+
+  BasicBlock* log_label_entry = createBasicBlock("log_entry");
+  BasicBlock* log_label_bb = createBasicBlock("log_bb");
+
+  // Block entry (label_entry)
+  CallInst* ptr_16 = CallInst::Create(intrinsics->GetVTFunction, ptr_src, "",
+                                      label_entry);
+  CallInst* ptr_17 = CallInst::Create(intrinsics->GetVTFunction, ptr_dst, "",
+                                      label_entry);
+
+  ICmpInst* int1_18 = new ICmpInst(*label_entry, ICmpInst::ICMP_EQ, ptr_16,
+                                   ptr_17, "");
+  BranchInst::Create(label_bb, label_bb2, int1_18, label_entry);
+
+  // Block bb (label_bb)
+  currentBlock = label_bb;
+  CallInst* ptr_20 = CallInst::Create(intrinsics->GetClassFunction,
ptr_src, "",
+                                      label_bb);
+  std::vector<Value*> ptr_21_indices;
+  ptr_21_indices.push_back(intrinsics->constantZero);
+  ptr_21_indices.push_back(intrinsics->OffsetAccessInCommonClassConstant);
+  Instruction* ptr_21 =
+    GetElementPtrInst::Create(ptr_20, ptr_21_indices, "", label_bb);
+  LoadInst* int32_22 = new LoadInst(ptr_21, "", false, label_bb);
+  Value* cmp = BinaryOperator::CreateAnd(int32_22,
intrinsics->IsArrayConstant, "",
+                                         label_bb);
+  Value* zero = ConstantInt::get(Type::getInt16Ty(*llvmContext), 0);
+  ICmpInst* int1_23 = new ICmpInst(*label_bb, ICmpInst::ICMP_NE, cmp,
zero, "");
+  BranchInst::Create(label_bb4, label_bb2, int1_23, label_bb);
+
+
+  // Block bb2 (label_bb2)
+  currentBlock = label_bb2;
+  invoke(meth, args, "", label_bb2);
+  BranchInst::Create(label_return, currentBlock);
+
+
+  // Block bb4 (label_bb4)
+  currentBlock = label_bb4;
+  BinaryOperator* int32_27 = BinaryOperator::Create(Instruction::Add,
+                                                    int32_length, int32_start,
+                                                    "", label_bb4);
+  Value* int32_28 = arraySize(ptr_src);
+
+  ICmpInst* int1_29 = new ICmpInst(*label_bb4, ICmpInst::ICMP_ULE, int32_27,
+                                   int32_28, "");
+  BranchInst::Create(label_bb5, label_bb7, int1_29, label_bb4);
+
+  // Block bb5 (label_bb5)
+  currentBlock = label_bb5;
+  BinaryOperator* int32_31 = BinaryOperator::Create(Instruction::Add,
+                                                    int32_length, int32_start2,
+                                                    "", label_bb5);
+  Value* int32_32 = arraySize(ptr_dst);
+
+  ICmpInst* int1_33 = new ICmpInst(*label_bb5, ICmpInst::ICMP_ULE, int32_31,
+                                   int32_32, "");
+  BranchInst::Create(label_bb12_preheader, label_bb7, int1_33, label_bb5);
+
+  // Block bb12.preheader (label_bb12_preheader)
+  currentBlock = label_bb12_preheader;
+  ICmpInst* int1_35 = new ICmpInst(*label_bb12_preheader, ICmpInst::ICMP_UGT,
+                                   int32_length, intrinsics->constantZero, "");
+  BranchInst::Create(log_label_entry, label_return, int1_35,
label_bb12_preheader);
+
+  // Block bb7 (label_bb7)
+  currentBlock = label_bb7;
+  Value* VTArgs[1] = { Constant::getNullValue(intrinsics->VTType) };
+  throwRuntimeException(intrinsics->ArrayStoreExceptionFunction, VTArgs, 1);
+
+
+
+  // Block entry (label_entry)
+  currentBlock = log_label_entry;
+  Value* ptr_10_indices[2] = { intrinsics->constantZero,
+
intrinsics->OffsetBaseClassInArrayClassConstant };
+  Instruction* temp = new BitCastInst(ptr_20,
intrinsics->JavaClassArrayType, "",
+                                      log_label_entry);
+  Instruction* ptr_10 = GetElementPtrInst::Create(temp, ptr_10_indices, "",
+                                                  log_label_entry);
+
+  LoadInst* ptr_11 = new LoadInst(ptr_10, "", false, log_label_entry);
+
+  Value* ptr_12_indices[2] = { intrinsics->constantZero,
+                               intrinsics->OffsetAccessInCommonClassConstant };
+  Instruction* ptr_12 = GetElementPtrInst::Create(ptr_11, ptr_12_indices, "",
+                                                  log_label_entry);
+  LoadInst* int16_13 = new LoadInst(ptr_12, "", false, log_label_entry);
+
+  BinaryOperator* int32_15 = BinaryOperator::Create(Instruction::And, int16_13,
+
intrinsics->IsPrimitiveConstant,
+                                                    "", log_label_entry);
+  ICmpInst* int1_16 = new ICmpInst(*log_label_entry, ICmpInst::ICMP_EQ,
+                                   int32_15, zero, "");
+  BranchInst::Create(label_bb2, log_label_bb, int1_16, log_label_entry);
+
+  // Block bb (log_label_bb)
+  currentBlock = log_label_bb;
+  Value* ptr_11_indices[2] = { intrinsics->constantZero,
+
intrinsics->OffsetLogSizeInPrimitiveClassConstant };
+  temp = new BitCastInst(ptr_11, intrinsics->JavaClassPrimitiveType, "",
+                         log_label_bb);
+  GetElementPtrInst* ptr_18 = GetElementPtrInst::Create(temp, ptr_11_indices,
+                                                        "", log_label_bb);
+  LoadInst* int32_20 = new LoadInst(ptr_18, "", false, log_label_bb);
+
+  int32_start = BinaryOperator::CreateShl(int32_start, int32_20, "",
+                                          log_label_bb);
+  int32_start2 = BinaryOperator::CreateShl(int32_start2, int32_20, "",
+                                           log_label_bb);
+  int32_length = BinaryOperator::CreateShl(int32_length, int32_20, "",
+                                           log_label_bb);
+
+  ptr_src = new BitCastInst(ptr_src, intrinsics->JavaArrayUInt8Type, "",
+                            log_label_bb);
+
+  ptr_dst = new BitCastInst(ptr_dst, intrinsics->JavaArrayUInt8Type, "",
+                            log_label_bb);
+
+  Value* indexes[3] = { intrinsics->constantZero,
+                        intrinsics->JavaArrayElementsOffsetConstant,
+                        int32_start };
+  Instruction* ptr_42 = GetElementPtrInst::Create(ptr_src, indexes,
+                                                  "", log_label_bb);
+
+  indexes[2] = int32_start2;
+  Instruction* ptr_44 = GetElementPtrInst::Create(ptr_dst, indexes,
+                                                  "", log_label_bb);
+
+  BranchInst::Create(label_memmove, log_label_bb);
+
+  // Block memmove
+  currentBlock = label_memmove;
+  Value* src_int = new PtrToIntInst(ptr_42, intrinsics->pointerSizeType, "",
+                                    currentBlock);
+
+  Value* dst_int = new PtrToIntInst(ptr_44, intrinsics->pointerSizeType, "",
+                                    currentBlock);
+
+  cmp = new ICmpInst(*currentBlock, ICmpInst::ICMP_ULT, dst_int, src_int, "");
+
+  Value* increment = SelectInst::Create(cmp, intrinsics->constantOne,
+                                        intrinsics->constantMinusOne, "",
+                                        currentBlock);
+  BranchInst::Create(label_bb11, label_backward, cmp, currentBlock);
+
+  PHINode* phi_dst_ptr = PHINode::Create(ptr_44->getType(), 3, "", label_bb11);
+  PHINode* phi_src_ptr = PHINode::Create(ptr_44->getType(), 3, "", label_bb11);
+  phi_dst_ptr->addIncoming(ptr_44, currentBlock);
+  phi_src_ptr->addIncoming(ptr_42, currentBlock);
+
+  // Block backward
+  currentBlock = label_backward;
+
+  ptr_42 = GetElementPtrInst::Create(ptr_42, int32_length, "",
+                                     currentBlock);
+
+  ptr_44 = GetElementPtrInst::Create(ptr_44, int32_length, "",
+                                     currentBlock);
+
+  ptr_42 = GetElementPtrInst::Create(ptr_42, intrinsics->constantMinusOne, "",
+                                     currentBlock);
+
+  ptr_44 = GetElementPtrInst::Create(ptr_44, intrinsics->constantMinusOne, "",
+                                     currentBlock);
+
+  phi_dst_ptr->addIncoming(ptr_44, currentBlock);
+  phi_src_ptr->addIncoming(ptr_42, currentBlock);
+
+  BranchInst::Create(label_bb11, currentBlock);
+
+  // Block bb11 (label_bb11)
+  currentBlock = label_bb11;
+  Argument* fwdref_39 = new Argument(Type::getInt32Ty(*llvmContext));
+  PHINode* int32_i_016 = PHINode::Create(Type::getInt32Ty(*llvmContext), 2,
+                                         "i.016", label_bb11);
+  int32_i_016->addIncoming(fwdref_39, label_bb11);
+  int32_i_016->addIncoming(intrinsics->constantZero, log_label_bb);
+
+  LoadInst* ptr_43 = new LoadInst(phi_src_ptr, "", false, label_bb11);
+  new StoreInst(ptr_43, phi_dst_ptr, false, label_bb11);
+
+
+  ptr_42 = GetElementPtrInst::Create(phi_src_ptr, increment, "",
+                                     label_bb11);
+
+  ptr_44 = GetElementPtrInst::Create(phi_dst_ptr, increment, "",
+                                     label_bb11);
+  phi_dst_ptr->addIncoming(ptr_44, label_bb11);
+  phi_src_ptr->addIncoming(ptr_42, label_bb11);
+
+  BinaryOperator* int32_indvar_next =
+    BinaryOperator::Create(Instruction::Add, int32_i_016,
intrinsics->constantOne,
+                           "indvar.next", label_bb11);
+  ICmpInst* int1_exitcond = new ICmpInst(*label_bb11, ICmpInst::ICMP_EQ,
+                                         int32_indvar_next, int32_length,
+                                         "exitcond");
+  BranchInst::Create(label_return, label_bb11, int1_exitcond, label_bb11);
+
+  // Resolve Forward References
+  fwdref_39->replaceAllUsesWith(int32_indvar_next); delete fwdref_39;
+
+  currentBlock = label_return;
+}
diff --git a/lib/J3/Compiler/JavaJITOpenJDK.inc
b/lib/J3/Compiler/JavaJITOpenJDK.inc
new file mode 100644
index 0000000..6d80a9a
--- /dev/null
+++ b/lib/J3/Compiler/JavaJITOpenJDK.inc
@@ -0,0 +1,4 @@
+void JavaJIT::lowerArraycopy(std::vector<Value*>& args) {
+  assert(0 && "Unable to lower array copy yet!");
+}
+
-- 
1.7.5.1



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