From fd406f1ee2d94bafcb4943e4b21c2f4ea4bd8f3a Mon Sep 17 00:00:00 2001
From: Daniel Dunbar <daniel@zuster.org>
Date: Thu, 26 Aug 2010 03:48:08 +0000
Subject: Revert r112091, "Remap metadata attached to instructions when
 remapping individual ...", which depends on r111922, which I am reverting.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112157 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Transforms/Utils/CloneModule.cpp | 15 +++++++++++++++
 lib/Transforms/Utils/ValueMapper.cpp | 13 +------------
 2 files changed, 16 insertions(+), 12 deletions(-)

(limited to 'lib/Transforms')

diff --git a/lib/Transforms/Utils/CloneModule.cpp b/lib/Transforms/Utils/CloneModule.cpp
index c54edf6..25083ad 100644
--- a/lib/Transforms/Utils/CloneModule.cpp
+++ b/lib/Transforms/Utils/CloneModule.cpp
@@ -132,5 +132,20 @@ Module *llvm::CloneModule(const Module *M,
       NewNMD->addOperand(cast<MDNode>(MapValue(NMD.getOperand(i), VMap)));
   }
 
+  // Update metadata attach with instructions.
+  for (Module::iterator MI = New->begin(), ME = New->end(); MI != ME; ++MI)   
+    for (Function::iterator FI = MI->begin(), FE = MI->end(); 
+         FI != FE; ++FI)
+      for (BasicBlock::iterator BI = FI->begin(), BE = FI->end(); 
+           BI != BE; ++BI) {
+        SmallVector<std::pair<unsigned, MDNode *>, 4 > MDs;
+        BI->getAllMetadata(MDs);
+        for (SmallVector<std::pair<unsigned, MDNode *>, 4>::iterator 
+               MDI = MDs.begin(), MDE = MDs.end(); MDI != MDE; ++MDI) {
+          Value *MappedValue = MapValue(MDI->second, VMap);
+          if (MDI->second != MappedValue && MappedValue)
+            BI->setMetadata(MDI->first, cast<MDNode>(MappedValue));
+        }
+      }
   return New;
 }
diff --git a/lib/Transforms/Utils/ValueMapper.cpp b/lib/Transforms/Utils/ValueMapper.cpp
index 8b5ddb0..df11cbb 100644
--- a/lib/Transforms/Utils/ValueMapper.cpp
+++ b/lib/Transforms/Utils/ValueMapper.cpp
@@ -147,21 +147,10 @@ Value *llvm::MapValue(const Value *V, ValueToValueMapTy &VM) {
 /// current values into those specified by VMap.
 ///
 void llvm::RemapInstruction(Instruction *I, ValueToValueMapTy &VMap) {
-  // Remap operands.
   for (User::op_iterator op = I->op_begin(), E = I->op_end(); op != E; ++op) {
     Value *V = MapValue(*op, VMap);
     assert(V && "Referenced value not in value map!");
     *op = V;
   }
-
-  // Remap attached metadata.
-  SmallVector<std::pair<unsigned, MDNode *>, 4> MDs;
-  I->getAllMetadata(MDs);
-  for (SmallVectorImpl<std::pair<unsigned, MDNode *> >::iterator
-       MI = MDs.begin(), ME = MDs.end(); MI != ME; ++MI) {
-    Value *Old = MI->second;
-    Value *New = MapValue(Old, VMap);
-    if (New != Old)
-      I->setMetadata(MI->first, cast<MDNode>(New));
-  }
 }
+
-- 
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