Fix -Wcast-qual warnings.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101779 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Archive/Archive.cpp

@@ -241,7 +241,7 @@ llvm::GetBitcodeSymbols(const unsigned char *BufPtr, unsigned Length,
   // Get the module.
   std::auto_ptr<MemoryBuffer> Buffer(
     MemoryBuffer::getNewMemBuffer(Length, ModuleID.c_str()));
-  memcpy((char*)Buffer->getBufferStart(), BufPtr, Length);
+  memcpy(const_cast<char *>(Buffer->getBufferStart()), BufPtr, Length);
 
   Module *M = ParseBitcodeFile(Buffer.get(), Context, ErrMsg);
   if (!M)

lib/Archive/ArchiveReader.cpp

@@ -349,7 +349,8 @@ Archive::getAllModules(std::vector<Module*>& Modules,
         "(" + I->getPath().str() + ")";
       MemoryBuffer *Buffer =
         MemoryBuffer::getNewMemBuffer(I->getSize(), FullMemberName.c_str());
-      memcpy((char*)Buffer->getBufferStart(), I->getData(), I->getSize());
+      memcpy(const_cast<char *>(Buffer->getBufferStart()),
+             I->getData(), I->getSize());
 
       Module *M = ParseBitcodeFile(Buffer, Context, ErrMessage);
       delete Buffer;
@@ -489,7 +490,8 @@ Archive::findModuleDefiningSymbol(const std::string& symbol,
     mbr->getPath().str() + ")";
   MemoryBuffer *Buffer =MemoryBuffer::getNewMemBuffer(mbr->getSize(),
                                                       FullMemberName.c_str());
-  memcpy((char*)Buffer->getBufferStart(), mbr->getData(), mbr->getSize());
+  memcpy(const_cast<char *>(Buffer->getBufferStart()),
+         mbr->getData(), mbr->getSize());
 
   Module *m = getLazyBitcodeModule(Buffer, Context, ErrMsg);
   if (!m)
@@ -617,7 +619,8 @@ bool Archive::isBitcodeArchive() {
 
     MemoryBuffer *Buffer =
       MemoryBuffer::getNewMemBuffer(I->getSize(), FullMemberName.c_str());
-    memcpy((char*)Buffer->getBufferStart(), I->getData(), I->getSize());
+    memcpy(const_cast<char *>(Buffer->getBufferStart()),
+           I->getData(), I->getSize());
     Module *M = ParseBitcodeFile(Buffer, Context);
     delete Buffer;
     if (!M)

lib/VMCore/TypeSymbolTable.cpp

@@ -126,13 +126,15 @@ void TypeSymbolTable::refineAbstractType(const DerivedType *OldType,
   // faster to remove them all in one pass.
   //
   for (iterator I = begin(), E = end(); I != E; ++I) {
-    if (I->second == (Type*)OldType) {  // FIXME when Types aren't const.
+    // FIXME when Types aren't const.
+    if (I->second == const_cast<DerivedType *>(OldType)) {
 #if DEBUG_ABSTYPE
       dbgs() << "Removing type " << OldType->getDescription() << "\n";
 #endif
       OldType->removeAbstractTypeUser(this);
 
-      I->second = (Type*)NewType;  // TODO FIXME when types aren't const
+      // TODO FIXME when types aren't const
+      I->second = const_cast<Type *>(NewType);
       if (NewType->isAbstract()) {
 #if DEBUG_ABSTYPE
         dbgs() << "Added type " << NewType->getDescription() << "\n";