Remove 'unwinds to' support from mainline. This patch undoes r47802 r47989
r48047 r48084 r48085 r48086 r48088 r48096 r48099 r48109 and r48123.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50265 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Bitcode/Writer/BitcodeWriter.cpp b/lib/Bitcode/Writer/BitcodeWriter.cpp
index 96f045c..713a82b 100644
--- a/lib/Bitcode/Writer/BitcodeWriter.cpp
+++ b/lib/Bitcode/Writer/BitcodeWriter.cpp
@@ -970,20 +970,13 @@
   unsigned InstID = CstEnd;
   
   // Finally, emit all the instructions, in order.
-  for (Function::const_iterator BB = F.begin(), E = F.end(); BB != E; ++BB) {
-    if (const BasicBlock *unwindDest = BB->getUnwindDest()) {
-      Vals.push_back(VE.getValueID(unwindDest));
-      Stream.EmitRecord(bitc::FUNC_CODE_INST_BB_UNWINDDEST, Vals);
-      Vals.clear();
-    }   
-
+  for (Function::const_iterator BB = F.begin(), E = F.end(); BB != E; ++BB)
     for (BasicBlock::const_iterator I = BB->begin(), E = BB->end();
          I != E; ++I) {
       WriteInstruction(*I, InstID, VE, Stream, Vals);
       if (I->getType() != Type::VoidTy)
         ++InstID;
     }
-  }
   
   // Emit names for all the instructions etc.
   WriteValueSymbolTable(F.getValueSymbolTable(), VE, Stream);