Index: llvm/lib/CodeGen/RegisterPressure.cpp
===================================================================
--- llvm/lib/CodeGen/RegisterPressure.cpp
+++ llvm/lib/CodeGen/RegisterPressure.cpp
@@ -646,7 +646,7 @@
 void PressureDiffs::init(unsigned N) {
   Size = N;
   if (N <= Max) {
-    memset(PDiffArray, 0, N * sizeof(PressureDiff));
+    memset((void *)PDiffArray, 0, N * sizeof(PressureDiff));
     return;
   }
   Max = Size;
Index: llvm/lib/ExecutionEngine/ExecutionEngine.cpp
===================================================================
--- llvm/lib/ExecutionEngine/ExecutionEngine.cpp
+++ llvm/lib/ExecutionEngine/ExecutionEngine.cpp
@@ -1044,7 +1044,7 @@
     *((double*)Ptr) = Val.DoubleVal;
     break;
   case Type::X86_FP80TyID:
-    memcpy(Ptr, Val.IntVal.getRawData(), 10);
+    memcpy((void *)Ptr, Val.IntVal.getRawData(), 10);
     break;
   case Type::PointerTyID:
     // Ensure 64 bit target pointers are fully initialized on 32 bit hosts.
Index: llvm/lib/Target/X86/Disassembler/X86Disassembler.cpp
===================================================================
--- llvm/lib/Target/X86/Disassembler/X86Disassembler.cpp
+++ llvm/lib/Target/X86/Disassembler/X86Disassembler.cpp
@@ -1717,7 +1717,7 @@
   CommentStream = &CStream;
 
   InternalInstruction Insn;
-  memset(&Insn, 0, sizeof(InternalInstruction));
+  memset((void *)&Insn, 0, sizeof(InternalInstruction));
   Insn.bytes = Bytes;
   Insn.startLocation = Address;
   Insn.readerCursor = Address;
Index: llvm/tools/llvm-nm/llvm-nm.cpp
===================================================================
--- llvm/tools/llvm-nm/llvm-nm.cpp
+++ llvm/tools/llvm-nm/llvm-nm.cpp
@@ -1636,7 +1636,7 @@
         if (!found) {
           LastSymbolName = Entry.symbolName();
           NMSymbol W;
-          memset(&W, '\0', sizeof(NMSymbol));
+          memset((void *)&W, '\0', sizeof(NMSymbol));
           W.Name = Entry.symbolName();
           W.Address = 0;
           W.Size = 0;