diff --git a/llvm/include/llvm/IR/IRBuilder.h b/llvm/include/llvm/IR/IRBuilder.h
--- a/llvm/include/llvm/IR/IRBuilder.h
+++ b/llvm/include/llvm/IR/IRBuilder.h
@@ -1759,8 +1759,10 @@
   /// parameter.
   /// FIXME: Remove this function once transition to Align is over.
   /// Use the version that takes MaybeAlign instead of this one.
-  LoadInst *CreateAlignedLoad(Type *Ty, Value *Ptr, unsigned Align,
-                              const char *Name) {
+  LLVM_ATTRIBUTE_DEPRECATED(LoadInst *CreateAlignedLoad(Type *Ty, Value *Ptr,
+                                                        unsigned Align,
+                                                        const char *Name),
+                            "Use the version that takes NaybeAlign instead") {
     return CreateAlignedLoad(Ty, Ptr, MaybeAlign(Align), Name);
   }
   LoadInst *CreateAlignedLoad(Type *Ty, Value *Ptr, MaybeAlign Align,
@@ -1771,8 +1773,10 @@
   }
   /// FIXME: Remove this function once transition to Align is over.
   /// Use the version that takes MaybeAlign instead of this one.
-  LoadInst *CreateAlignedLoad(Type *Ty, Value *Ptr, unsigned Align,
-                              const Twine &Name = "") {
+  LLVM_ATTRIBUTE_DEPRECATED(LoadInst *CreateAlignedLoad(Type *Ty, Value *Ptr,
+                                                        unsigned Align,
+                                                        const Twine &Name = ""),
+                            "Use the version that takes MaybeAlign instead") {
     return CreateAlignedLoad(Ty, Ptr, MaybeAlign(Align), Name);
   }
   LoadInst *CreateAlignedLoad(Type *Ty, Value *Ptr, MaybeAlign Align,
@@ -1783,8 +1787,11 @@
   }
   /// FIXME: Remove this function once transition to Align is over.
   /// Use the version that takes MaybeAlign instead of this one.
-  LoadInst *CreateAlignedLoad(Type *Ty, Value *Ptr, unsigned Align,
-                              bool isVolatile, const Twine &Name = "") {
+  LLVM_ATTRIBUTE_DEPRECATED(LoadInst *CreateAlignedLoad(Type *Ty, Value *Ptr,
+                                                        unsigned Align,
+                                                        bool isVolatile,
+                                                        const Twine &Name = ""),
+                            "Use the version that takes MaybeAlign instead") {
     return CreateAlignedLoad(Ty, Ptr, MaybeAlign(Align), isVolatile, Name);
   }
   LoadInst *CreateAlignedLoad(Type *Ty, Value *Ptr, MaybeAlign Align,
@@ -1797,19 +1804,19 @@
   // Deprecated [opaque pointer types]
   LoadInst *CreateAlignedLoad(Value *Ptr, unsigned Align, const char *Name) {
     return CreateAlignedLoad(Ptr->getType()->getPointerElementType(), Ptr,
-                             Align, Name);
+                             MaybeAlign(Align), Name);
   }
   // Deprecated [opaque pointer types]
   LoadInst *CreateAlignedLoad(Value *Ptr, unsigned Align,
                               const Twine &Name = "") {
     return CreateAlignedLoad(Ptr->getType()->getPointerElementType(), Ptr,
-                             Align, Name);
+                             MaybeAlign(Align), Name);
   }
   // Deprecated [opaque pointer types]
   LoadInst *CreateAlignedLoad(Value *Ptr, unsigned Align, bool isVolatile,
                               const Twine &Name = "") {
     return CreateAlignedLoad(Ptr->getType()->getPointerElementType(), Ptr,
-                             Align, isVolatile, Name);
+                             MaybeAlign(Align), isVolatile, Name);
   }
   // Deprecated [opaque pointer types]
   LoadInst *CreateAlignedLoad(Value *Ptr, MaybeAlign Align, const char *Name) {
diff --git a/llvm/include/llvm/IR/Instructions.h b/llvm/include/llvm/IR/Instructions.h
--- a/llvm/include/llvm/IR/Instructions.h
+++ b/llvm/include/llvm/IR/Instructions.h
@@ -109,8 +109,12 @@
 
   /// Return the alignment of the memory that is being allocated by the
   /// instruction.
+  MaybeAlign getAlign() const {
+    return decodeMaybeAlign(getSubclassDataFromInstruction() & 31);
+  }
+  // FIXME: Remove this one transition to Align is over.
   unsigned getAlignment() const {
-    if (const auto MA = decodeMaybeAlign(getSubclassDataFromInstruction() & 31))
+    if (const auto MA = getAlign())
       return MA->value();
     return 0;
   }
diff --git a/llvm/lib/CodeGen/AtomicExpandPass.cpp b/llvm/lib/CodeGen/AtomicExpandPass.cpp
--- a/llvm/lib/CodeGen/AtomicExpandPass.cpp
+++ b/llvm/lib/CodeGen/AtomicExpandPass.cpp
@@ -1622,7 +1622,7 @@
   bool UseSizedLibcall = canUseSizedAtomicCall(Size, Align, DL);
   Type *SizedIntTy = Type::getIntNTy(Ctx, Size * 8);
 
-  unsigned AllocaAlignment = DL.getPrefTypeAlignment(SizedIntTy);
+  const llvm::Align AllocaAlignment(DL.getPrefTypeAlignment(SizedIntTy));
 
   // TODO: the "order" argument type is "int", not int32. So
   // getInt32Ty may be wrong if the arch uses e.g. 16-bit ints.
@@ -1712,14 +1712,15 @@
   // 'expected' argument, if present.
   if (CASExpected) {
     AllocaCASExpected = AllocaBuilder.CreateAlloca(CASExpected->getType());
-    AllocaCASExpected->setAlignment(MaybeAlign(AllocaAlignment));
+    AllocaCASExpected->setAlignment(AllocaAlignment);
     unsigned AllocaAS =  AllocaCASExpected->getType()->getPointerAddressSpace();
 
     AllocaCASExpected_i8 =
       Builder.CreateBitCast(AllocaCASExpected,
                             Type::getInt8PtrTy(Ctx, AllocaAS));
     Builder.CreateLifetimeStart(AllocaCASExpected_i8, SizeVal64);
-    Builder.CreateAlignedStore(CASExpected, AllocaCASExpected, AllocaAlignment);
+    Builder.CreateAlignedStore(CASExpected, AllocaCASExpected,
+                               AllocaAlignment.value());
     Args.push_back(AllocaCASExpected_i8);
   }
 
@@ -1731,11 +1732,12 @@
       Args.push_back(IntValue);
     } else {
       AllocaValue = AllocaBuilder.CreateAlloca(ValueOperand->getType());
-      AllocaValue->setAlignment(MaybeAlign(AllocaAlignment));
+      AllocaValue->setAlignment(AllocaAlignment);
       AllocaValue_i8 =
           Builder.CreateBitCast(AllocaValue, Type::getInt8PtrTy(Ctx));
       Builder.CreateLifetimeStart(AllocaValue_i8, SizeVal64);
-      Builder.CreateAlignedStore(ValueOperand, AllocaValue, AllocaAlignment);
+      Builder.CreateAlignedStore(ValueOperand, AllocaValue,
+                                 AllocaAlignment.value());
       Args.push_back(AllocaValue_i8);
     }
   }
@@ -1743,7 +1745,7 @@
   // 'ret' argument.
   if (!CASExpected && HasResult && !UseSizedLibcall) {
     AllocaResult = AllocaBuilder.CreateAlloca(I->getType());
-    AllocaResult->setAlignment(MaybeAlign(AllocaAlignment));
+    AllocaResult->setAlignment(AllocaAlignment);
     unsigned AllocaAS =  AllocaResult->getType()->getPointerAddressSpace();
     AllocaResult_i8 =
       Builder.CreateBitCast(AllocaResult, Type::getInt8PtrTy(Ctx, AllocaAS));
diff --git a/llvm/lib/CodeGen/InterleavedLoadCombinePass.cpp b/llvm/lib/CodeGen/InterleavedLoadCombinePass.cpp
--- a/llvm/lib/CodeGen/InterleavedLoadCombinePass.cpp
+++ b/llvm/lib/CodeGen/InterleavedLoadCombinePass.cpp
@@ -1220,7 +1220,7 @@
                                       "interleaved.wide.ptrcast");
 
   // Create the wide load and update the MemorySSA.
-  auto LI = Builder.CreateAlignedLoad(ILTy, CI, InsertionPoint->getAlignment(),
+  auto LI = Builder.CreateAlignedLoad(ILTy, CI, InsertionPoint->getAlign(),
                                       "interleaved.wide.load");
   auto MSSAU = MemorySSAUpdater(&MSSA);
   MemoryUse *MSSALoad = cast<MemoryUse>(MSSAU.createMemoryAccessBefore(
diff --git a/llvm/lib/CodeGen/PreISelIntrinsicLowering.cpp b/llvm/lib/CodeGen/PreISelIntrinsicLowering.cpp
--- a/llvm/lib/CodeGen/PreISelIntrinsicLowering.cpp
+++ b/llvm/lib/CodeGen/PreISelIntrinsicLowering.cpp
@@ -46,7 +46,7 @@
     Value *OffsetPtr =
         B.CreateGEP(Int8Ty, CI->getArgOperand(0), CI->getArgOperand(1));
     Value *OffsetPtrI32 = B.CreateBitCast(OffsetPtr, Int32PtrTy);
-    Value *OffsetI32 = B.CreateAlignedLoad(Int32Ty, OffsetPtrI32, 4);
+    Value *OffsetI32 = B.CreateAlignedLoad(Int32Ty, OffsetPtrI32, Align(4));
 
     Value *ResultPtr = B.CreateGEP(Int8Ty, CI->getArgOperand(0), OffsetI32);
 
diff --git a/llvm/lib/CodeGen/ScalarizeMaskedMemIntrin.cpp b/llvm/lib/CodeGen/ScalarizeMaskedMemIntrin.cpp
--- a/llvm/lib/CodeGen/ScalarizeMaskedMemIntrin.cpp
+++ b/llvm/lib/CodeGen/ScalarizeMaskedMemIntrin.cpp
@@ -130,7 +130,7 @@
   Value *Mask = CI->getArgOperand(2);
   Value *Src0 = CI->getArgOperand(3);
 
-  unsigned AlignVal = cast<ConstantInt>(Alignment)->getZExtValue();
+  const Align AlignVal = cast<ConstantInt>(Alignment)->getAlignValue();
   VectorType *VecType = cast<VectorType>(CI->getType());
 
   Type *EltTy = VecType->getElementType();
@@ -151,7 +151,8 @@
   }
 
   // Adjust alignment for the scalar instruction.
-  AlignVal = MinAlign(AlignVal, EltTy->getPrimitiveSizeInBits() / 8);
+  const Align AdjustedAlignVal =
+      commonAlignment(AlignVal, EltTy->getPrimitiveSizeInBits() / 8);
   // Bitcast %addr from i8* to EltTy*
   Type *NewPtrType =
       EltTy->getPointerTo(Ptr->getType()->getPointerAddressSpace());
@@ -166,7 +167,7 @@
       if (cast<Constant>(Mask)->getAggregateElement(Idx)->isNullValue())
         continue;
       Value *Gep = Builder.CreateConstInBoundsGEP1_32(EltTy, FirstEltPtr, Idx);
-      LoadInst *Load = Builder.CreateAlignedLoad(EltTy, Gep, AlignVal);
+      LoadInst *Load = Builder.CreateAlignedLoad(EltTy, Gep, AdjustedAlignVal);
       VResult = Builder.CreateInsertElement(VResult, Load, Idx);
     }
     CI->replaceAllUsesWith(VResult);
@@ -210,7 +211,7 @@
     Builder.SetInsertPoint(InsertPt);
 
     Value *Gep = Builder.CreateConstInBoundsGEP1_32(EltTy, FirstEltPtr, Idx);
-    LoadInst *Load = Builder.CreateAlignedLoad(EltTy, Gep, AlignVal);
+    LoadInst *Load = Builder.CreateAlignedLoad(EltTy, Gep, AdjustedAlignVal);
     Value *NewVResult = Builder.CreateInsertElement(VResult, Load, Idx);
 
     // Create "else" block, fill it in the next iteration
@@ -414,8 +415,8 @@
       if (cast<Constant>(Mask)->getAggregateElement(Idx)->isNullValue())
         continue;
       Value *Ptr = Builder.CreateExtractElement(Ptrs, Idx, "Ptr" + Twine(Idx));
-      LoadInst *Load =
-          Builder.CreateAlignedLoad(EltTy, Ptr, AlignVal, "Load" + Twine(Idx));
+      LoadInst *Load = Builder.CreateAlignedLoad(
+          EltTy, Ptr, MaybeAlign(AlignVal), "Load" + Twine(Idx));
       VResult =
           Builder.CreateInsertElement(VResult, Load, Idx, "Res" + Twine(Idx));
     }
@@ -459,8 +460,8 @@
     Builder.SetInsertPoint(InsertPt);
 
     Value *Ptr = Builder.CreateExtractElement(Ptrs, Idx, "Ptr" + Twine(Idx));
-    LoadInst *Load =
-        Builder.CreateAlignedLoad(EltTy, Ptr, AlignVal, "Load" + Twine(Idx));
+    LoadInst *Load = Builder.CreateAlignedLoad(EltTy, Ptr, MaybeAlign(AlignVal),
+                                               "Load" + Twine(Idx));
     Value *NewVResult =
         Builder.CreateInsertElement(VResult, Load, Idx, "Res" + Twine(Idx));
 
@@ -624,8 +625,8 @@
       if (cast<Constant>(Mask)->getAggregateElement(Idx)->isNullValue())
         continue;
       Value *NewPtr = Builder.CreateConstInBoundsGEP1_32(EltTy, Ptr, MemIndex);
-      LoadInst *Load =
-          Builder.CreateAlignedLoad(EltTy, NewPtr, 1, "Load" + Twine(Idx));
+      LoadInst *Load = Builder.CreateAlignedLoad(EltTy, NewPtr, Align(1),
+                                                 "Load" + Twine(Idx));
       VResult =
           Builder.CreateInsertElement(VResult, Load, Idx, "Res" + Twine(Idx));
       ++MemIndex;
@@ -670,7 +671,7 @@
                                                      "cond.load");
     Builder.SetInsertPoint(InsertPt);
 
-    LoadInst *Load = Builder.CreateAlignedLoad(EltTy, Ptr, 1);
+    LoadInst *Load = Builder.CreateAlignedLoad(EltTy, Ptr, Align(1));
     Value *NewVResult = Builder.CreateInsertElement(VResult, Load, Idx);
 
     // Move the pointer if there are more blocks to come.
diff --git a/llvm/lib/IR/AutoUpgrade.cpp b/llvm/lib/IR/AutoUpgrade.cpp
--- a/llvm/lib/IR/AutoUpgrade.cpp
+++ b/llvm/lib/IR/AutoUpgrade.cpp
@@ -2308,7 +2308,7 @@
       Type *VT = VectorType::get(EltTy, NumSrcElts);
       Value *Op = Builder.CreatePointerCast(CI->getArgOperand(0),
                                             PointerType::getUnqual(VT));
-      Value *Load = Builder.CreateAlignedLoad(VT, Op, 1);
+      Value *Load = Builder.CreateAlignedLoad(VT, Op, Align(1));
       if (NumSrcElts == 2)
         Rep = Builder.CreateShuffleVector(Load, UndefValue::get(Load->getType()),
                                           { 0, 1, 0, 1 });
@@ -3054,7 +3054,8 @@
       // Convert the type of the pointer to a pointer to the stored type.
       Value *BC =
           Builder.CreateBitCast(Ptr, PointerType::getUnqual(VTy), "cast");
-      LoadInst *LI = Builder.CreateAlignedLoad(VTy, BC, VTy->getBitWidth() / 8);
+      LoadInst *LI =
+          Builder.CreateAlignedLoad(VTy, BC, Align(VTy->getBitWidth() / 8));
       LI->setMetadata(M->getMDKindID("nontemporal"), Node);
       Rep = LI;
     } else if (IsX86 && (Name.startswith("fma.vfmadd.") ||
diff --git a/llvm/lib/Target/AMDGPU/AMDGPULowerKernelArguments.cpp b/llvm/lib/Target/AMDGPU/AMDGPULowerKernelArguments.cpp
--- a/llvm/lib/Target/AMDGPU/AMDGPULowerKernelArguments.cpp
+++ b/llvm/lib/Target/AMDGPU/AMDGPULowerKernelArguments.cpp
@@ -160,7 +160,7 @@
     ArgPtr = Builder.CreateBitCast(ArgPtr, AdjustedArgTy->getPointerTo(AS),
                                    ArgPtr->getName() + ".cast");
     LoadInst *Load =
-        Builder.CreateAlignedLoad(AdjustedArgTy, ArgPtr, AdjustedAlign.value());
+        Builder.CreateAlignedLoad(AdjustedArgTy, ArgPtr, AdjustedAlign);
     Load->setMetadata(LLVMContext::MD_invariant_load, MDNode::get(Ctx, {}));
 
     MDBuilder MDB(Ctx);
diff --git a/llvm/lib/Target/AMDGPU/AMDGPUPromoteAlloca.cpp b/llvm/lib/Target/AMDGPU/AMDGPUPromoteAlloca.cpp
--- a/llvm/lib/Target/AMDGPU/AMDGPUPromoteAlloca.cpp
+++ b/llvm/lib/Target/AMDGPU/AMDGPUPromoteAlloca.cpp
@@ -251,10 +251,10 @@
   // 32-bit and extract sequence is already present, and it is probably easier
   // to CSE this. The loads should be mergable later anyway.
   Value *GEPXY = Builder.CreateConstInBoundsGEP1_64(I32Ty, CastDispatchPtr, 1);
-  LoadInst *LoadXY = Builder.CreateAlignedLoad(I32Ty, GEPXY, 4);
+  LoadInst *LoadXY = Builder.CreateAlignedLoad(I32Ty, GEPXY, Align(4));
 
   Value *GEPZU = Builder.CreateConstInBoundsGEP1_64(I32Ty, CastDispatchPtr, 2);
-  LoadInst *LoadZU = Builder.CreateAlignedLoad(I32Ty, GEPZU, 4);
+  LoadInst *LoadZU = Builder.CreateAlignedLoad(I32Ty, GEPZU, Align(4));
 
   MDNode *MD = MDNode::get(Mod->getContext(), None);
   LoadXY->setMetadata(LLVMContext::MD_invariant_load, MD);
diff --git a/llvm/lib/Target/ARM/ARMParallelDSP.cpp b/llvm/lib/Target/ARM/ARMParallelDSP.cpp
--- a/llvm/lib/Target/ARM/ARMParallelDSP.cpp
+++ b/llvm/lib/Target/ARM/ARMParallelDSP.cpp
@@ -772,8 +772,7 @@
   const unsigned AddrSpace = DomLoad->getPointerAddressSpace();
   Value *VecPtr = IRB.CreateBitCast(Base->getPointerOperand(),
                                     LoadTy->getPointerTo(AddrSpace));
-  LoadInst *WideLoad = IRB.CreateAlignedLoad(LoadTy, VecPtr,
-                                             Base->getAlignment());
+  LoadInst *WideLoad = IRB.CreateAlignedLoad(LoadTy, VecPtr, Base->getAlign());
 
   // Make sure everything is in the correct order in the basic block.
   MoveBefore(Base->getPointerOperand(), VecPtr);
diff --git a/llvm/lib/Target/X86/X86ISelLowering.cpp b/llvm/lib/Target/X86/X86ISelLowering.cpp
--- a/llvm/lib/Target/X86/X86ISelLowering.cpp
+++ b/llvm/lib/Target/X86/X86ISelLowering.cpp
@@ -27474,7 +27474,7 @@
   // Finally we can emit the atomic load.
   LoadInst *Loaded =
       Builder.CreateAlignedLoad(AI->getType(), AI->getPointerOperand(),
-                                AI->getType()->getPrimitiveSizeInBits());
+                                Align(AI->getType()->getPrimitiveSizeInBits()));
   Loaded->setAtomic(Order, SSID);
   AI->replaceAllUsesWith(Loaded);
   AI->eraseFromParent();
diff --git a/llvm/lib/Target/X86/X86InterleavedAccess.cpp b/llvm/lib/Target/X86/X86InterleavedAccess.cpp
--- a/llvm/lib/Target/X86/X86InterleavedAccess.cpp
+++ b/llvm/lib/Target/X86/X86InterleavedAccess.cpp
@@ -216,7 +216,7 @@
     Value *NewBasePtr =
         Builder.CreateGEP(VecBaseTy, VecBasePtr, Builder.getInt32(i));
     Instruction *NewLoad =
-        Builder.CreateAlignedLoad(VecBaseTy, NewBasePtr, LI->getAlignment());
+        Builder.CreateAlignedLoad(VecBaseTy, NewBasePtr, LI->getAlign());
     DecomposedVectors.push_back(NewLoad);
   }
 }
diff --git a/llvm/lib/Transforms/InstCombine/InstCombineCalls.cpp b/llvm/lib/Transforms/InstCombine/InstCombineCalls.cpp
--- a/llvm/lib/Transforms/InstCombine/InstCombineCalls.cpp
+++ b/llvm/lib/Transforms/InstCombine/InstCombineCalls.cpp
@@ -1056,7 +1056,8 @@
 // * Narrow width by halfs excluding zero/undef lanes
 Value *InstCombiner::simplifyMaskedLoad(IntrinsicInst &II) {
   Value *LoadPtr = II.getArgOperand(0);
-  unsigned Alignment = cast<ConstantInt>(II.getArgOperand(1))->getZExtValue();
+  const Align Alignment =
+      cast<ConstantInt>(II.getArgOperand(1))->getAlignValue();
 
   // If the mask is all ones or undefs, this is a plain vector load of the 1st
   // argument.
@@ -1066,9 +1067,9 @@
 
   // If we can unconditionally load from this address, replace with a
   // load/select idiom. TODO: use DT for context sensitive query
-  if (isDereferenceableAndAlignedPointer(
-          LoadPtr, II.getType(), MaybeAlign(Alignment),
-          II.getModule()->getDataLayout(), &II, nullptr)) {
+  if (isDereferenceableAndAlignedPointer(LoadPtr, II.getType(), Alignment,
+                                         II.getModule()->getDataLayout(), &II,
+                                         nullptr)) {
     Value *LI = Builder.CreateAlignedLoad(II.getType(), LoadPtr, Alignment,
                                          "unmaskedload");
     return Builder.CreateSelect(II.getArgOperand(2), LI, II.getArgOperand(3));
@@ -1459,7 +1460,7 @@
 
   auto *BCastInst = Builder.CreateBitCast(II.getArgOperand(0),
                                           PointerType::get(II.getType(), 0));
-  return Builder.CreateAlignedLoad(II.getType(), BCastInst, Alignment);
+  return Builder.CreateAlignedLoad(II.getType(), BCastInst, Align(Alignment));
 }
 
 // Returns true iff the 2 intrinsics have the same operands, limiting the
diff --git a/llvm/lib/Transforms/InstCombine/InstCombineLoadStoreAlloca.cpp b/llvm/lib/Transforms/InstCombine/InstCombineLoadStoreAlloca.cpp
--- a/llvm/lib/Transforms/InstCombine/InstCombineLoadStoreAlloca.cpp
+++ b/llvm/lib/Transforms/InstCombine/InstCombineLoadStoreAlloca.cpp
@@ -462,12 +462,11 @@
         NewPtr->getType()->getPointerAddressSpace() == AS))
     NewPtr = Builder.CreateBitCast(Ptr, NewTy->getPointerTo(AS));
 
-  unsigned Align = LI.getAlignment();
-  if (!Align)
     // If old load did not have an explicit alignment specified,
     // manually preserve the implied (ABI) alignment of the load.
     // Else we may inadvertently incorrectly over-promise alignment.
-    Align = getDataLayout().getABITypeAlignment(LI.getType());
+  const llvm::Align Align =
+      getDataLayout().getValueOrABITypeAlignment(LI.getAlign(), LI.getType());
 
   LoadInst *NewLoad = Builder.CreateAlignedLoad(
       NewTy, NewPtr, Align, LI.isVolatile(), LI.getName() + Suffix);
@@ -674,9 +673,7 @@
     if (SL->hasPadding())
       return nullptr;
 
-    auto Align = LI.getAlignment();
-    if (!Align)
-      Align = DL.getABITypeAlignment(ST);
+    const auto Align = DL.getValueOrABITypeAlignment(LI.getAlign(), ST);
 
     auto *Addr = LI.getPointerOperand();
     auto *IdxType = Type::getInt32Ty(T->getContext());
@@ -690,9 +687,9 @@
       };
       auto *Ptr = IC.Builder.CreateInBoundsGEP(ST, Addr, makeArrayRef(Indices),
                                                Name + ".elt");
-      auto EltAlign = MinAlign(Align, SL->getElementOffset(i));
-      auto *L = IC.Builder.CreateAlignedLoad(ST->getElementType(i), Ptr,
-                                             EltAlign, Name + ".unpack");
+      auto *L = IC.Builder.CreateAlignedLoad(
+          ST->getElementType(i), Ptr,
+          commonAlignment(Align, SL->getElementOffset(i)), Name + ".unpack");
       // Propagate AA metadata. It'll still be valid on the narrowed load.
       AAMDNodes AAMD;
       LI.getAAMetadata(AAMD);
@@ -725,9 +722,7 @@
 
     const DataLayout &DL = IC.getDataLayout();
     auto EltSize = DL.getTypeAllocSize(ET);
-    auto Align = LI.getAlignment();
-    if (!Align)
-      Align = DL.getABITypeAlignment(T);
+    const auto Align = DL.getValueOrABITypeAlignment(LI.getAlign(), T);
 
     auto *Addr = LI.getPointerOperand();
     auto *IdxType = Type::getInt64Ty(T->getContext());
@@ -742,8 +737,9 @@
       };
       auto *Ptr = IC.Builder.CreateInBoundsGEP(AT, Addr, makeArrayRef(Indices),
                                                Name + ".elt");
-      auto *L = IC.Builder.CreateAlignedLoad(
-          AT->getElementType(), Ptr, MinAlign(Align, Offset), Name + ".unpack");
+      auto *L = IC.Builder.CreateAlignedLoad(AT->getElementType(), Ptr,
+                                             commonAlignment(Align, Offset),
+                                             Name + ".unpack");
       AAMDNodes AAMD;
       LI.getAAMetadata(AAMD);
       L->setAAMetadata(AAMD);
diff --git a/llvm/lib/Transforms/Instrumentation/DataFlowSanitizer.cpp b/llvm/lib/Transforms/Instrumentation/DataFlowSanitizer.cpp
--- a/llvm/lib/Transforms/Instrumentation/DataFlowSanitizer.cpp
+++ b/llvm/lib/Transforms/Instrumentation/DataFlowSanitizer.cpp
@@ -1194,7 +1194,7 @@
     }
   }
 
-  uint64_t ShadowAlign = Align * DFS.ShadowWidth / 8;
+  const MaybeAlign ShadowAlign(Align * DFS.ShadowWidth / 8);
   SmallVector<const Value *, 2> Objs;
   GetUnderlyingObjects(Addr, Objs, Pos->getModule()->getDataLayout());
   bool AllConstants = true;
@@ -1216,7 +1216,7 @@
     return DFS.ZeroShadow;
   case 1: {
     LoadInst *LI = new LoadInst(DFS.ShadowTy, ShadowAddr, "", Pos);
-    LI->setAlignment(MaybeAlign(ShadowAlign));
+    LI->setAlignment(ShadowAlign);
     return LI;
   }
   case 2: {
diff --git a/llvm/lib/Transforms/Instrumentation/MemorySanitizer.cpp b/llvm/lib/Transforms/Instrumentation/MemorySanitizer.cpp
--- a/llvm/lib/Transforms/Instrumentation/MemorySanitizer.cpp
+++ b/llvm/lib/Transforms/Instrumentation/MemorySanitizer.cpp
@@ -1643,8 +1643,8 @@
               // ParamTLS overflow.
               *ShadowPtr = getCleanShadow(V);
             } else {
-              *ShadowPtr = EntryIRB.CreateAlignedLoad(
-                  getShadowTy(&FArg), Base, kShadowTLSAlignment.value());
+              *ShadowPtr = EntryIRB.CreateAlignedLoad(getShadowTy(&FArg), Base,
+                                                      kShadowTLSAlignment);
             }
           }
           LLVM_DEBUG(dbgs()
@@ -1783,8 +1783,8 @@
     if (PropagateShadow) {
       std::tie(ShadowPtr, OriginPtr) =
           getShadowOriginPtr(Addr, IRB, ShadowTy, Alignment, /*isStore*/ false);
-      setShadow(&I, IRB.CreateAlignedLoad(ShadowTy, ShadowPtr,
-                                          Alignment.value(), "_msld"));
+      setShadow(&I,
+                IRB.CreateAlignedLoad(ShadowTy, ShadowPtr, Alignment, "_msld"));
     } else {
       setShadow(&I, getCleanShadow(&I));
     }
@@ -1798,8 +1798,8 @@
     if (MS.TrackOrigins) {
       if (PropagateShadow) {
         const Align OriginAlignment = std::max(kMinOriginAlignment, Alignment);
-        setOrigin(&I, IRB.CreateAlignedLoad(MS.OriginTy, OriginPtr,
-                                            OriginAlignment.value()));
+        setOrigin(
+            &I, IRB.CreateAlignedLoad(MS.OriginTy, OriginPtr, OriginAlignment));
       } else {
         setOrigin(&I, getCleanOrigin());
       }
@@ -2481,8 +2481,8 @@
       const Align Alignment = Align::None();
       std::tie(ShadowPtr, OriginPtr) =
           getShadowOriginPtr(Addr, IRB, ShadowTy, Alignment, /*isStore*/ false);
-      setShadow(&I, IRB.CreateAlignedLoad(ShadowTy, ShadowPtr,
-                                          Alignment.value(), "_msld"));
+      setShadow(&I,
+                IRB.CreateAlignedLoad(ShadowTy, ShadowPtr, Alignment, "_msld"));
     } else {
       setShadow(&I, getCleanShadow(&I));
     }
@@ -2893,8 +2893,7 @@
     if (ClCheckAccessAddress)
       insertShadowCheck(Addr, &I);
 
-    Value *Shadow =
-        IRB.CreateAlignedLoad(Ty, ShadowPtr, Alignment.value(), "_ldmxcsr");
+    Value *Shadow = IRB.CreateAlignedLoad(Ty, ShadowPtr, Alignment, "_ldmxcsr");
     Value *Origin = MS.TrackOrigins ? IRB.CreateLoad(MS.OriginTy, OriginPtr)
                                     : getCleanOrigin();
     insertShadowCheck(Shadow, Origin, &I);
@@ -3381,7 +3380,7 @@
     IRBuilder<> IRBAfter(&*NextInsn);
     Value *RetvalShadow = IRBAfter.CreateAlignedLoad(
         getShadowTy(&I), getShadowPtrForRetval(&I, IRBAfter),
-        kShadowTLSAlignment.value(), "_msret");
+        kShadowTLSAlignment, "_msret");
     setShadow(&I, RetvalShadow);
     if (MS.TrackOrigins)
       setOrigin(&I, IRBAfter.CreateLoad(MS.OriginTy,
diff --git a/llvm/lib/Transforms/Scalar/SROA.cpp b/llvm/lib/Transforms/Scalar/SROA.cpp
--- a/llvm/lib/Transforms/Scalar/SROA.cpp
+++ b/llvm/lib/Transforms/Scalar/SROA.cpp
@@ -2460,7 +2460,7 @@
     assert(EndIndex > BeginIndex && "Empty vector!");
 
     Value *V = IRB.CreateAlignedLoad(NewAI.getAllocatedType(), &NewAI,
-                                     NewAI.getAlignment(), "load");
+                                     NewAI.getAlign(), "load");
     return extractVector(IRB, V, BeginIndex, EndIndex, "vec");
   }
 
@@ -2468,7 +2468,7 @@
     assert(IntTy && "We cannot insert an integer to the alloca");
     assert(!LI.isVolatile());
     Value *V = IRB.CreateAlignedLoad(NewAI.getAllocatedType(), &NewAI,
-                                     NewAI.getAlignment(), "load");
+                                     NewAI.getAlign(), "load");
     V = convertValue(DL, IRB, V, IntTy);
     assert(NewBeginOffset >= NewAllocaBeginOffset && "Out of bounds offset");
     uint64_t Offset = NewBeginOffset - NewAllocaBeginOffset;
@@ -2513,8 +2513,8 @@
                 (IsLoadPastEnd && NewAllocaTy->isIntegerTy() &&
                  TargetTy->isIntegerTy()))) {
       LoadInst *NewLI = IRB.CreateAlignedLoad(NewAI.getAllocatedType(), &NewAI,
-                                              NewAI.getAlignment(),
-                                              LI.isVolatile(), LI.getName());
+                                              NewAI.getAlign(), LI.isVolatile(),
+                                              LI.getName());
       if (AATags)
         NewLI->setAAMetadata(AATags);
       if (LI.isVolatile())
@@ -2609,7 +2609,7 @@
 
       // Mix in the existing elements.
       Value *Old = IRB.CreateAlignedLoad(NewAI.getAllocatedType(), &NewAI,
-                                         NewAI.getAlignment(), "load");
+                                         NewAI.getAlign(), "load");
       V = insertVector(IRB, Old, V, BeginIndex, "vec");
     }
     StoreInst *Store = IRB.CreateAlignedStore(V, &NewAI, NewAI.getAlignment());
@@ -2626,7 +2626,7 @@
     assert(!SI.isVolatile());
     if (DL.getTypeSizeInBits(V->getType()) != IntTy->getBitWidth()) {
       Value *Old = IRB.CreateAlignedLoad(NewAI.getAllocatedType(), &NewAI,
-                                         NewAI.getAlignment(), "oldload");
+                                         NewAI.getAlign(), "oldload");
       Old = convertValue(DL, IRB, Old, IntTy);
       assert(BeginOffset >= NewAllocaBeginOffset && "Out of bounds offset");
       uint64_t Offset = BeginOffset - NewAllocaBeginOffset;
@@ -2829,7 +2829,7 @@
         Splat = getVectorSplat(Splat, NumElements);
 
       Value *Old = IRB.CreateAlignedLoad(NewAI.getAllocatedType(), &NewAI,
-                                         NewAI.getAlignment(), "oldload");
+                                         NewAI.getAlign(), "oldload");
       V = insertVector(IRB, Old, Splat, BeginIndex, "vec");
     } else if (IntTy) {
       // If this is a memset on an alloca where we can widen stores, insert the
@@ -2842,7 +2842,7 @@
       if (IntTy && (BeginOffset != NewAllocaBeginOffset ||
                     EndOffset != NewAllocaBeginOffset)) {
         Value *Old = IRB.CreateAlignedLoad(NewAI.getAllocatedType(), &NewAI,
-                                           NewAI.getAlignment(), "oldload");
+                                           NewAI.getAlign(), "oldload");
         Old = convertValue(DL, IRB, Old, IntTy);
         uint64_t Offset = NewBeginOffset - NewAllocaBeginOffset;
         V = insertInteger(DL, IRB, Old, V, Offset, "insert");
@@ -3028,11 +3028,11 @@
     Value *Src;
     if (VecTy && !IsWholeAlloca && !IsDest) {
       Src = IRB.CreateAlignedLoad(NewAI.getAllocatedType(), &NewAI,
-                                  NewAI.getAlignment(), "load");
+                                  NewAI.getAlign(), "load");
       Src = extractVector(IRB, Src, BeginIndex, EndIndex, "vec");
     } else if (IntTy && !IsWholeAlloca && !IsDest) {
       Src = IRB.CreateAlignedLoad(NewAI.getAllocatedType(), &NewAI,
-                                  NewAI.getAlignment(), "load");
+                                  NewAI.getAlign(), "load");
       Src = convertValue(DL, IRB, Src, IntTy);
       uint64_t Offset = NewBeginOffset - NewAllocaBeginOffset;
       Src = extractInteger(DL, IRB, Src, SubIntTy, Offset, "extract");
@@ -3046,11 +3046,11 @@
 
     if (VecTy && !IsWholeAlloca && IsDest) {
       Value *Old = IRB.CreateAlignedLoad(NewAI.getAllocatedType(), &NewAI,
-                                         NewAI.getAlignment(), "oldload");
+                                         NewAI.getAlign(), "oldload");
       Src = insertVector(IRB, Old, Src, BeginIndex, "vec");
     } else if (IntTy && !IsWholeAlloca && IsDest) {
       Value *Old = IRB.CreateAlignedLoad(NewAI.getAllocatedType(), &NewAI,
-                                         NewAI.getAlignment(), "oldload");
+                                         NewAI.getAlign(), "oldload");
       Old = convertValue(DL, IRB, Old, IntTy);
       uint64_t Offset = NewBeginOffset - NewAllocaBeginOffset;
       Src = insertInteger(DL, IRB, Old, Src, Offset, "insert");
@@ -3357,7 +3357,7 @@
       Value *GEP =
           IRB.CreateInBoundsGEP(BaseTy, Ptr, GEPIndices, Name + ".gep");
       LoadInst *Load =
-          IRB.CreateAlignedLoad(Ty, GEP, Alignment.value(), Name + ".load");
+          IRB.CreateAlignedLoad(Ty, GEP, Alignment, Name + ".load");
       if (AATags)
         Load->setAAMetadata(AATags);
       Agg = IRB.CreateInsertValue(Agg, Load, Indices, Name + ".insert");
@@ -3860,7 +3860,7 @@
           getAdjustedPtr(IRB, DL, BasePtr,
                          APInt(DL.getIndexSizeInBits(AS), PartOffset),
                          PartPtrTy, BasePtr->getName() + "."),
-          getAdjustedAlignment(LI, PartOffset, DL).value(),
+          getAdjustedAlignment(LI, PartOffset, DL),
           /*IsVolatile*/ false, LI->getName());
       PLoad->copyMetadata(*LI, {LLVMContext::MD_mem_parallel_loop_access,
                                 LLVMContext::MD_access_group});
@@ -4003,7 +4003,7 @@
             getAdjustedPtr(IRB, DL, LoadBasePtr,
                            APInt(DL.getIndexSizeInBits(AS), PartOffset),
                            LoadPartPtrTy, LoadBasePtr->getName() + "."),
-            getAdjustedAlignment(LI, PartOffset, DL).value(),
+            getAdjustedAlignment(LI, PartOffset, DL),
             /*IsVolatile*/ false, LI->getName());
       }
 
diff --git a/llvm/lib/Transforms/Scalar/Scalarizer.cpp b/llvm/lib/Transforms/Scalar/Scalarizer.cpp
--- a/llvm/lib/Transforms/Scalar/Scalarizer.cpp
+++ b/llvm/lib/Transforms/Scalar/Scalarizer.cpp
@@ -802,7 +802,7 @@
 
   for (unsigned I = 0; I < NumElems; ++I)
     Res[I] = Builder.CreateAlignedLoad(Layout.VecTy->getElementType(), Ptr[I],
-                                       Layout.getElemAlign(I),
+                                       Align(Layout.getElemAlign(I)),
                                        LI.getName() + ".i" + Twine(I));
   gather(&LI, Res);
   return true;
diff --git a/llvm/lib/Transforms/Vectorize/LoadStoreVectorizer.cpp b/llvm/lib/Transforms/Vectorize/LoadStoreVectorizer.cpp
--- a/llvm/lib/Transforms/Vectorize/LoadStoreVectorizer.cpp
+++ b/llvm/lib/Transforms/Vectorize/LoadStoreVectorizer.cpp
@@ -1194,7 +1194,8 @@
 
   Value *Bitcast =
       Builder.CreateBitCast(L0->getPointerOperand(), VecTy->getPointerTo(AS));
-  LoadInst *LI = Builder.CreateAlignedLoad(VecTy, Bitcast, Alignment);
+  LoadInst *LI =
+      Builder.CreateAlignedLoad(VecTy, Bitcast, MaybeAlign(Alignment));
   propagateMetadata(LI, Chain);
 
   if (VecLoadTy) {
diff --git a/llvm/lib/Transforms/Vectorize/LoopVectorize.cpp b/llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
--- a/llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
+++ b/llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
@@ -2268,7 +2268,7 @@
       }
       else
         NewLoad = Builder.CreateAlignedLoad(VecTy, AddrParts[Part],
-                                            Group->getAlignment(), "wide.vec");
+                                            Group->getAlign(), "wide.vec");
       Group->addMetadata(NewLoad);
       NewLoads.push_back(NewLoad);
     }
@@ -2478,8 +2478,8 @@
             VecPtr, Alignment, BlockInMaskParts[Part], UndefValue::get(DataTy),
             "wide.masked.load");
       else
-        NewLI = Builder.CreateAlignedLoad(DataTy, VecPtr, Alignment.value(),
-                                          "wide.load");
+        NewLI =
+            Builder.CreateAlignedLoad(DataTy, VecPtr, Alignment, "wide.load");
 
       // Add metadata to the load, but setVectorValue to the reverse shuffle.
       addMetadata(NewLI, LI);
diff --git a/llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp b/llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
--- a/llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
+++ b/llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
@@ -4150,7 +4150,7 @@
         Builder.SetInsertPoint(LI);
         PointerType *PtrTy = PointerType::get(VecTy, LI->getPointerAddressSpace());
         Value *Ptr = Builder.CreateBitCast(LI->getOperand(0), PtrTy);
-        LoadInst *V = Builder.CreateAlignedLoad(VecTy, Ptr, LI->getAlignment());
+        LoadInst *V = Builder.CreateAlignedLoad(VecTy, Ptr, LI->getAlign());
         Value *NewV = propagateMetadata(V, E->Scalars);
         if (!E->ReorderIndices.empty()) {
           OrdersType Mask;