Mark several PointerIntPair methods as lvalue-only

No point in mutating 'this' if it's just going to be thrown away.

https://reviews.llvm.org/D63945

llvm-svn: 374102

Author: jrose-apple

llvm/include/llvm/ADT/PointerIntPair.h

@@ -13,6 +13,7 @@
 #ifndef LLVM_ADT_POINTERINTPAIR_H
 #define LLVM_ADT_POINTERINTPAIR_H
 
+#include "llvm/Support/Compiler.h"
 #include "llvm/Support/PointerLikeTypeTraits.h"
 #include "llvm/Support/type_traits.h"
 #include <cassert>
@@ -59,19 +60,19 @@ class PointerIntPair {
 
   IntType getInt() const { return (IntType)Info::getInt(Value); }
 
-  void setPointer(PointerTy PtrVal) {
+  void setPointer(PointerTy PtrVal) LLVM_LVALUE_FUNCTION {
     Value = Info::updatePointer(Value, PtrVal);
   }
 
-  void setInt(IntType IntVal) {
+  void setInt(IntType IntVal) LLVM_LVALUE_FUNCTION {
     Value = Info::updateInt(Value, static_cast<intptr_t>(IntVal));
   }
 
-  void initWithPointer(PointerTy PtrVal) {
+  void initWithPointer(PointerTy PtrVal) LLVM_LVALUE_FUNCTION {
     Value = Info::updatePointer(0, PtrVal);
   }
 
-  void setPointerAndInt(PointerTy PtrVal, IntType IntVal) {
+  void setPointerAndInt(PointerTy PtrVal, IntType IntVal) LLVM_LVALUE_FUNCTION {
     Value = Info::updateInt(Info::updatePointer(0, PtrVal),
                             static_cast<intptr_t>(IntVal));
   }
@@ -89,7 +90,7 @@ class PointerIntPair {
 
   void *getOpaqueValue() const { return reinterpret_cast<void *>(Value); }
 
-  void setFromOpaqueValue(void *Val) {
+  void setFromOpaqueValue(void *Val) LLVM_LVALUE_FUNCTION {
     Value = reinterpret_cast<intptr_t>(Val);
   }