Remove the hack to check UNAME_RELEASE when identifying the Darwin version.

[oota-llvm.git] / lib / Transforms / Utils / CloneFunction.cpp

diff --git a/lib/Transforms/Utils/CloneFunction.cpp b/lib/Transforms/Utils/CloneFunction.cpp
index 80da08611dc70bfb57e736c5faba771ff5079fa6..6d6661e8254264023d2d3749914acee1d9fca3d8 100644 (file)
--- a/lib/Transforms/Utils/CloneFunction.cpp
+++ b/lib/Transforms/Utils/CloneFunction.cpp
@@ -112,8 +112,7 @@ void llvm::CloneFunctionInto(Function *NewFunc, const Function *OldFunc,
     const BasicBlock &BB = *BI;
 
     // Create a new basic block and copy instructions into it!
-    BasicBlock *CBB = CloneBasicBlock(&BB, VMap, NameSuffix, NewFunc,
-                                      CodeInfo);
+    BasicBlock *CBB = CloneBasicBlock(&BB, VMap, NameSuffix, NewFunc, CodeInfo);
     VMap[&BB] = CBB;                       // Add basic block mapping.
 
     if (ReturnInst *RI = dyn_cast<ReturnInst>(CBB->getTerminator()))
@@ -122,12 +121,12 @@ void llvm::CloneFunctionInto(Function *NewFunc, const Function *OldFunc,
 
   // Loop over all of the instructions in the function, fixing up operand
   // references as we go.  This uses VMap to do all the hard work.
-  //
   for (Function::iterator BB = cast<BasicBlock>(VMap[OldFunc->begin()]),
          BE = NewFunc->end(); BB != BE; ++BB)
     // Loop over all instructions, fixing each one as we find it...
     for (BasicBlock::iterator II = BB->begin(); II != BB->end(); ++II)
-      RemapInstruction(II, VMap, ModuleLevelChanges);
+      RemapInstruction(II, VMap,
+                       ModuleLevelChanges ? RF_None : RF_NoModuleLevelChanges);
 }
 
 /// CloneFunction - Return a copy of the specified function, but without
@@ -138,11 +137,10 @@ void llvm::CloneFunctionInto(Function *NewFunc, const Function *OldFunc,
 /// updated to include mappings from all of the instructions and basicblocks in
 /// the function from their old to new values.
 ///
-Function *llvm::CloneFunction(const Function *F,
-                              ValueToValueMapTy &VMap,
+Function *llvm::CloneFunction(const Function *F, ValueToValueMapTy &VMap,
                               bool ModuleLevelChanges,
                               ClonedCodeInfo *CodeInfo) {
-  std::vector<const Type*> ArgTypes;
+  std::vector<Type*> ArgTypes;
 
   // The user might be deleting arguments to the function by specifying them in
   // the VMap.  If so, we need to not add the arguments to the arg ty vector
@@ -322,7 +320,8 @@ ConstantFoldMappedInstruction(const Instruction *I) {
   SmallVector<Constant*, 8> Ops;
   for (unsigned i = 0, e = I->getNumOperands(); i != e; ++i)
     if (Constant *Op = dyn_cast_or_null<Constant>(MapValue(I->getOperand(i),
-                                                   VMap, ModuleLevelChanges)))
+                                                           VMap,
+                  ModuleLevelChanges ? RF_None : RF_NoModuleLevelChanges)))
       Ops.push_back(Op);
     else
       return 0;  // All operands not constant!
@@ -339,20 +338,7 @@ ConstantFoldMappedInstruction(const Instruction *I) {
             return ConstantFoldLoadThroughGEPConstantExpr(GV->getInitializer(),
                                                           CE);
 
-  return ConstantFoldInstOperands(I->getOpcode(), I->getType(), &Ops[0],
-                                  Ops.size(), TD);
-}
-
-static DebugLoc
-UpdateInlinedAtInfo(const DebugLoc &InsnDL, const DebugLoc &TheCallDL,
-                    LLVMContext &Ctx) {
-  DebugLoc NewLoc = TheCallDL;
-  if (MDNode *IA = InsnDL.getInlinedAt(Ctx))
-    NewLoc = UpdateInlinedAtInfo(DebugLoc::getFromDILocation(IA), TheCallDL,
-                                 Ctx);
-
-  return DebugLoc::get(InsnDL.getLine(), InsnDL.getCol(),
-                       InsnDL.getScope(Ctx), NewLoc.getAsMDNode(Ctx));
+  return ConstantFoldInstOperands(I->getOpcode(), I->getType(), Ops, TD);
 }
 
 /// CloneAndPruneFunctionInto - This works exactly like CloneFunctionInto,
@@ -419,49 +405,14 @@ void llvm::CloneAndPruneFunctionInto(Function *NewFunc, const Function *OldFunc,
     if (PHINode *PN = dyn_cast<PHINode>(I)) {
       // Skip over all PHI nodes, remembering them for later.
       BasicBlock::const_iterator OldI = BI->begin();
-      for (; (PN = dyn_cast<PHINode>(I)); ++I, ++OldI) {
-        if (I->hasMetadata()) {
-          if (!TheCallDL.isUnknown()) {
-            DebugLoc IDL = I->getDebugLoc();
-            if (!IDL.isUnknown()) {
-              DebugLoc NewDL = UpdateInlinedAtInfo(IDL, TheCallDL,
-                                                   I->getContext());
-              I->setDebugLoc(NewDL);
-            }
-          } else {
-            // The cloned instruction has dbg info but the call instruction
-            // does not have dbg info. Remove dbg info from cloned instruction.
-            I->setDebugLoc(DebugLoc());
-          }
-        }
+      for (; (PN = dyn_cast<PHINode>(I)); ++I, ++OldI)
         PHIToResolve.push_back(cast<PHINode>(OldI));
-      }
     }
     
-    // FIXME:
-    // FIXME:
-    // FIXME: Unclone all this metadata stuff.
-    // FIXME:
-    // FIXME:
-    
     // Otherwise, remap the rest of the instructions normally.
-    for (; I != NewBB->end(); ++I) {
-      if (I->hasMetadata()) {
-        if (!TheCallDL.isUnknown()) {
-          DebugLoc IDL = I->getDebugLoc();
-          if (!IDL.isUnknown()) {
-            DebugLoc NewDL = UpdateInlinedAtInfo(IDL, TheCallDL,
-                                                 I->getContext());
-            I->setDebugLoc(NewDL);
-          }
-        } else {
-          // The cloned instruction has dbg info but the call instruction
-          // does not have dbg info. Remove dbg info from cloned instruction.
-          I->setDebugLoc(DebugLoc());
-        }
-      }
-      RemapInstruction(I, VMap, ModuleLevelChanges);
-    }
+    for (; I != NewBB->end(); ++I)
+      RemapInstruction(I, VMap,
+                       ModuleLevelChanges ? RF_None : RF_NoModuleLevelChanges);
   }
   
   // Defer PHI resolution until rest of function is resolved, PHI resolution
@@ -480,10 +431,10 @@ void llvm::CloneAndPruneFunctionInto(Function *NewFunc, const Function *OldFunc,
       PHINode *PN = cast<PHINode>(VMap[OPN]);
       for (unsigned pred = 0, e = NumPreds; pred != e; ++pred) {
         Value *V = VMap[PN->getIncomingBlock(pred)];
-        if (BasicBlock *MappedBlock = 
-            cast_or_null<BasicBlock>(V)) {
+        if (BasicBlock *MappedBlock = cast_or_null<BasicBlock>(V)) {
           Value *InVal = MapValue(PN->getIncomingValue(pred),
-                                  VMap, ModuleLevelChanges);
+                                  VMap, 
+                        ModuleLevelChanges ? RF_None : RF_NoModuleLevelChanges);
           assert(InVal && "Unknown input value?");
           PN->setIncomingValue(pred, InVal);
           PN->setIncomingBlock(pred, MappedBlock);
@@ -572,12 +523,12 @@ void llvm::CloneAndPruneFunctionInto(Function *NewFunc, const Function *OldFunc,
     // removed, so we just need to splice the blocks.
     BI->eraseFromParent();
     
-    // Move all the instructions in the succ to the pred.
-    I->getInstList().splice(I->end(), Dest->getInstList());
-    
     // Make all PHI nodes that referred to Dest now refer to I as their source.
     Dest->replaceAllUsesWith(I);
 
+    // Move all the instructions in the succ to the pred.
+    I->getInstList().splice(I->end(), Dest->getInstList());
+    
     // Remove the dest block.
     Dest->eraseFromParent();