diff --git a/include/llvm/ADT/APInt.h b/include/llvm/ADT/APInt.h
index c88d9651d68..f7df648d27e 100644
--- a/include/llvm/ADT/APInt.h
+++ b/include/llvm/ADT/APInt.h
@@ -2286,7 +2286,7 @@ void StoreIntToMemory(const APInt &IntVal, uint8_t *Dst, unsigned StoreBytes);
 
 /// LoadIntFromMemory - Loads the integer stored in the LoadBytes bytes starting
 /// from Src into IntVal, which is assumed to be wide enough and to hold zero.
-void LoadIntFromMemory(APInt &IntVal, uint8_t *Src, unsigned LoadBytes);
+void LoadIntFromMemory(APInt &IntVal, const uint8_t *Src, unsigned LoadBytes);
 
 } // namespace llvm
 
diff --git a/lib/Support/APInt.cpp b/lib/Support/APInt.cpp
index 4a591efb141..9a6f93feaa2 100644
--- a/lib/Support/APInt.cpp
+++ b/lib/Support/APInt.cpp
@@ -3086,7 +3086,8 @@ void llvm::StoreIntToMemory(const APInt &IntVal, uint8_t *Dst,
 
 /// LoadIntFromMemory - Loads the integer stored in the LoadBytes bytes starting
 /// from Src into IntVal, which is assumed to be wide enough and to hold zero.
-void llvm::LoadIntFromMemory(APInt &IntVal, uint8_t *Src, unsigned LoadBytes) {
+void llvm::LoadIntFromMemory(APInt &IntVal, const uint8_t *Src,
+                             unsigned LoadBytes) {
   assert((IntVal.getBitWidth()+7)/8 >= LoadBytes && "Integer too small!");
   uint8_t *Dst = reinterpret_cast<uint8_t *>(
                    const_cast<uint64_t *>(IntVal.getRawData()));