Update slang for LLVM 3.4 rebase.

Remove LinkOnceODRAutoHideLinkage, since it is now just a special case of
LinkOnceODRLinkage.

Remove CaseRange expansion code from all bitcode writers, since it is now dead.

Fix up HeaderSearch constructor.

Change-Id: I38547486be509b16ea5d8218b43c31ae35b37d3b

2 files changed, 1 insertions, 68 deletions

diff --git a/BitWriter_2_9/BitcodeWriter.cpp b/BitWriter_2_9/BitcodeWriter.cpp
index 0d45193..b87cad9 100644
--- a/BitWriter_2_9/BitcodeWriter.cpp
+++ b/BitWriter_2_9/BitcodeWriter.cpp
@@ -404,7 +404,6 @@ static unsigned getEncodedLinkage(const GlobalValue *GV) {
   case GlobalValue::AvailableExternallyLinkage:      return 12;
   case GlobalValue::LinkerPrivateLinkage:            return 13;
   case GlobalValue::LinkerPrivateWeakLinkage:        return 14;
-  case GlobalValue::LinkOnceODRAutoHideLinkage:      return 15;
   }
   llvm_unreachable("Invalid linkage");
 }
@@ -1161,20 +1160,8 @@ static void WriteInstruction(const Instruction &I, unsigned InstID,
       Vals.push_back(VE.getValueID(SI.getDefaultDest()));
       for (SwitchInst::ConstCaseIt i = SI.case_begin(), e = SI.case_end();
            i != e; ++i) {
-        const IntegersSubset& CaseRanges = i.getCaseValueEx();
-
-        if (CaseRanges.isSingleNumber()) {
-          Vals.push_back(VE.getValueID(CaseRanges.getSingleNumber(0).toConstantInt()));
+          Vals.push_back(VE.getValueID(i.getCaseValue()));
           Vals.push_back(VE.getValueID(i.getCaseSuccessor()));
-        } else if (CaseRanges.isSingleNumbersOnly()) {
-          for (unsigned ri = 0, rn = CaseRanges.getNumItems();
-               ri != rn; ++ri) {
-            Vals.push_back(VE.getValueID(CaseRanges.getSingleNumber(ri).toConstantInt()));
-            Vals.push_back(VE.getValueID(i.getCaseSuccessor()));
-          }
-        } else {
-          llvm_unreachable("Not single number?");
-        }
       }
     }
     break;
diff --git a/BitWriter_2_9/BitcodeWriterPass.cpp b/BitWriter_2_9/BitcodeWriterPass.cpp
index dfacc54..d43d690 100644
--- a/BitWriter_2_9/BitcodeWriterPass.cpp
+++ b/BitWriter_2_9/BitcodeWriterPass.cpp
@@ -22,7 +22,6 @@ namespace {
   class WriteBitcodePass : public ModulePass {
     raw_ostream &OS; // raw_ostream to print on
 
-    bool expandCaseRange(Function &F);
   public:
     static char ID; // Pass identification, replacement for typeid
     explicit WriteBitcodePass(raw_ostream &o)
@@ -32,10 +31,6 @@ namespace {
 
     bool runOnModule(Module &M) {
       bool Changed = false;
-      for (Module::iterator F = M.begin(), E = M.end(); F != E; ++F)
-        if (!F->isDeclaration())
-          Changed |= expandCaseRange(*F);
-
       llvm_2_9::WriteBitcodeToFile(&M, OS);
       return Changed;
     }
@@ -44,55 +39,6 @@ namespace {
 
 char WriteBitcodePass::ID = 0;
 
-/// expandCaseRange - Expand case range into explicit case values within the
-/// range
-bool WriteBitcodePass::expandCaseRange(Function &F) {
-  bool Changed = false;
-
-  for (Function::iterator BB = F.begin(), E = F.end(); BB != E; ++BB) {
-    SwitchInst *SI = dyn_cast<SwitchInst>(BB->getTerminator());
-    if (SI == NULL) {
-      continue;
-    }
-
-    for (SwitchInst::CaseIt i = SI->case_begin(), e = SI->case_end();
-         i != e; ++i) {
-      IntegersSubset& CaseRanges = i.getCaseValueEx();
-
-      // All case ranges are already in single case values
-      if (CaseRanges.isSingleNumbersOnly()) {
-        continue;
-      }
-
-      // Create a new case
-      Type *IntTy = SI->getCondition()->getType();
-      IntegersSubsetToBB CaseBuilder;
-      Changed = true;
-
-      for (unsigned ri = 0, rn = CaseRanges.getNumItems(); ri != rn; ++ri) {
-        IntegersSubset::Range r = CaseRanges.getItem(ri);
-        bool IsSingleNumber = CaseRanges.isSingleNumber(ri);
-
-        if (IsSingleNumber) {
-          CaseBuilder.add(r);
-        } else {
-          const APInt &Low = r.getLow();
-          const APInt &High = r.getHigh();
-
-          for (APInt V = Low; V != High; V++) {
-            assert(r.isInRange(V) && "Unexpected out-of-range case value!");
-            CaseBuilder.add(IntItem::fromType(IntTy, V));
-          }
-        }
-
-        IntegersSubset Case = CaseBuilder.getCase();
-        i.setValueEx(Case);
-      }
-    }
-  }
-  return Changed;
-}
-
 /// createBitcodeWriterPass - Create and return a pass that writes the module
 /// to the specified ostream.
 llvm::ModulePass *llvm_2_9::createBitcodeWriterPass(llvm::raw_ostream &Str) {