[CodeGen] Avoid deprecated Address ctor in EmitLoadOfPointer()

This requires some adjustment in caller code, because there was
a confusion regarding the meaning of the PtrTy argument: This
argument is the type of the pointer being loaded, not the addresses
being loaded from.

Author: nikic

clang/lib/CodeGen/CGExpr.cpp

@@ -2547,10 +2547,10 @@ Address CodeGenFunction::EmitLoadOfPointer(Address Ptr,
                                            LValueBaseInfo *BaseInfo,
                                            TBAAAccessInfo *TBAAInfo) {
   llvm::Value *Addr = Builder.CreateLoad(Ptr);
-  return Address::deprecated(
-      Addr,
-      CGM.getNaturalTypeAlignment(PtrTy->getPointeeType(), BaseInfo, TBAAInfo,
-                                  /*forPointeeType=*/true));
+  return Address(Addr, ConvertTypeForMem(PtrTy->getPointeeType()),
+                 CGM.getNaturalTypeAlignment(PtrTy->getPointeeType(), BaseInfo,
+                                             TBAAInfo,
+                                             /*forPointeeType=*/true));
 }
 
 LValue CodeGenFunction::EmitLoadOfPointerLValue(Address PtrAddr,

clang/lib/CodeGen/CGOpenMPRuntime.cpp

@@ -4650,8 +4650,7 @@ CGOpenMPRuntime::getDepobjElements(CodeGenFunction &CGF, LValue DepobjLVal,
   RecordDecl *KmpDependInfoRD =
       cast<RecordDecl>(KmpDependInfoTy->getAsTagDecl());
   LValue Base = CGF.EmitLoadOfPointerLValue(
-      DepobjLVal.getAddress(CGF),
-      C.getPointerType(C.VoidPtrTy).castAs<PointerType>());
+      DepobjLVal.getAddress(CGF), C.VoidPtrTy.castAs<PointerType>());
   QualType KmpDependInfoPtrTy = C.getPointerType(KmpDependInfoTy);
   Address Addr = CGF.Builder.CreatePointerBitCastOrAddrSpaceCast(
       Base.getAddress(CGF), CGF.ConvertTypeForMem(KmpDependInfoPtrTy),
@@ -4748,8 +4747,7 @@ emitDepobjElementsSizes(CodeGenFunction &CGF, QualType &KmpDependInfoTy,
     for (const Expr *E : Data.DepExprs) {
       LValue DepobjLVal = CGF.EmitLValue(E->IgnoreParenImpCasts());
       LValue Base = CGF.EmitLoadOfPointerLValue(
-          DepobjLVal.getAddress(CGF),
-          C.getPointerType(C.VoidPtrTy).castAs<PointerType>());
+          DepobjLVal.getAddress(CGF), C.VoidPtrTy.castAs<PointerType>());
       Address Addr = CGF.Builder.CreatePointerBitCastOrAddrSpaceCast(
           Base.getAddress(CGF), KmpDependInfoPtrT,
           CGF.ConvertTypeForMem(KmpDependInfoTy));
@@ -4806,8 +4804,7 @@ static void emitDepobjElements(CodeGenFunction &CGF, QualType &KmpDependInfoTy,
       const Expr *E = Data.DepExprs[I];
       LValue DepobjLVal = CGF.EmitLValue(E->IgnoreParenImpCasts());
       LValue Base = CGF.EmitLoadOfPointerLValue(
-          DepobjLVal.getAddress(CGF),
-          C.getPointerType(C.VoidPtrTy).castAs<PointerType>());
+          DepobjLVal.getAddress(CGF), C.VoidPtrTy.castAs<PointerType>());
       Address Addr = CGF.Builder.CreatePointerBitCastOrAddrSpaceCast(
           Base.getAddress(CGF), KmpDependInfoPtrT,
           CGF.ConvertTypeForMem(KmpDependInfoTy));
@@ -5055,8 +5052,7 @@ void CGOpenMPRuntime::emitDestroyClause(CodeGenFunction &CGF, LValue DepobjLVal,
   QualType FlagsTy;
   getDependTypes(C, KmpDependInfoTy, FlagsTy);
   LValue Base = CGF.EmitLoadOfPointerLValue(
-      DepobjLVal.getAddress(CGF),
-      C.getPointerType(C.VoidPtrTy).castAs<PointerType>());
+      DepobjLVal.getAddress(CGF), C.VoidPtrTy.castAs<PointerType>());
   QualType KmpDependInfoPtrTy = C.getPointerType(KmpDependInfoTy);
   Address Addr = CGF.Builder.CreatePointerBitCastOrAddrSpaceCast(
       Base.getAddress(CGF), CGF.ConvertTypeForMem(KmpDependInfoPtrTy),
@@ -6038,8 +6034,7 @@ static llvm::Value *emitReduceFiniFunction(CodeGenModule &CGM,
   CodeGenFunction CGF(CGM);
   CGF.StartFunction(GlobalDecl(), C.VoidTy, Fn, FnInfo, Args, Loc, Loc);
   Address PrivateAddr = CGF.EmitLoadOfPointer(
-      CGF.GetAddrOfLocalVar(&Param),
-      C.getPointerType(C.VoidPtrTy).castAs<PointerType>());
+      CGF.GetAddrOfLocalVar(&Param), C.VoidPtrTy.castAs<PointerType>());
   llvm::Value *Size = nullptr;
   // If the size of the reduction item is non-constant, load it from global
   // threadprivate variable.

clang/lib/CodeGen/CGOpenMPRuntimeGPU.cpp

@@ -3545,8 +3545,7 @@ llvm::Function *CGOpenMPRuntimeGPU::createParallelDataSharingWrapper(
       isOpenMPLoopBoundSharingDirective(D.getDirectiveKind())) {
     SharedArgListAddress = CGF.EmitLoadOfPointer(
         GlobalArgs, CGF.getContext()
-                        .getPointerType(CGF.getContext().getPointerType(
-                            CGF.getContext().VoidPtrTy))
+                        .getPointerType(CGF.getContext().VoidPtrTy)
                         .castAs<PointerType>());
   }
   unsigned Idx = 0;

clang/lib/CodeGen/CodeGenFunction.h

@@ -2527,6 +2527,9 @@ class CodeGenFunction : public CodeGenTypeCache {
     return EmitLoadOfReferenceLValue(RefLVal);
   }
 
+  /// Load a pointer with type \p PtrTy stored at address \p Ptr.
+  /// Note that \p PtrTy is the type of the loaded pointer, not the addresses
+  /// it is loaded from.
   Address EmitLoadOfPointer(Address Ptr, const PointerType *PtrTy,
                             LValueBaseInfo *BaseInfo = nullptr,
                             TBAAAccessInfo *TBAAInfo = nullptr);