[Alignment][NFC] Use Align::None instead of 1

Summary:
This is patch is part of a series to introduce an Alignment type.
See this thread for context: http://lists.llvm.org/pipermail/llvm-dev/2019-July/133851.html
See this patch for the introduction of the type: https://reviews.llvm.org/D64790

Reviewers: courbet

Subscribers: sdardis, nemanjai, hiraditya, kbarton, jrtc27, MaskRay, atanasyan, jsji, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D67704

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@372230 91177308-0d34-0410-b5e6-96231b3b80d8

include/llvm/CodeGen/AsmPrinter.h

@@ -636,7 +636,7 @@ public:
 
   /// Return the alignment for the specified \p GV.
   static llvm::Align getGVAlignment(const GlobalValue *GV, const DataLayout &DL,
-                                    llvm::Align InAlign = llvm::Align(1));
+                                    llvm::Align InAlign = llvm::Align::None());
 
 private:
   /// Private state for PrintSpecial()

include/llvm/CodeGen/TargetLowering.h

@@ -838,7 +838,7 @@ public:
     int          offset = 0;       // offset off of ptrVal
     unsigned     size = 0;         // the size of the memory location
                                    // (taken from memVT if zero)
-    MaybeAlign align = Align(1);   // alignment
+    MaybeAlign align = Align::None(); // alignment
 
     MachineMemOperand::Flags flags = MachineMemOperand::MONone;
     IntrinsicInfo() = default;

lib/CodeGen/AsmPrinter/AsmPrinter.cpp

@@ -2904,7 +2904,7 @@ void AsmPrinter::EmitBasicBlockStart(const MachineBasicBlock &MBB) {
 
   // Emit an alignment directive for this block, if needed.
   const llvm::Align Align = MBB.getAlignment();
-  if (Align > 1)
+  if (Align != llvm::Align::None())
     EmitAlignment(Align);
   MCCodePaddingContext Context;
   setupCodePaddingContext(MBB, Context);

lib/CodeGen/MachineFrameInfo.cpp

@@ -89,8 +89,8 @@ int MachineFrameInfo::CreateFixedObject(uint64_t Size, int64_t SPOffset,
   // object is 16-byte aligned. Note that unlike the non-fixed case, if the
   // stack needs realignment, we can't assume that the stack will in fact be
   // aligned.
-  llvm::Align Alignment =
-      commonAlignment(ForcedRealign ? llvm::Align() : StackAlignment, SPOffset);
+  llvm::Align Alignment = commonAlignment(
+      ForcedRealign ? llvm::Align::None() : StackAlignment, SPOffset);
   Alignment = clampStackAlignment(!StackRealignable, Alignment, StackAlignment);
   Objects.insert(Objects.begin(),
                  StackObject(Size, Alignment, SPOffset, IsImmutable,
@@ -102,8 +102,8 @@ int MachineFrameInfo::CreateFixedObject(uint64_t Size, int64_t SPOffset,
 int MachineFrameInfo::CreateFixedSpillStackObject(uint64_t Size,
                                                   int64_t SPOffset,
                                                   bool IsImmutable) {
-  llvm::Align Alignment =
-      commonAlignment(ForcedRealign ? llvm::Align() : StackAlignment, SPOffset);
+  llvm::Align Alignment = commonAlignment(
+      ForcedRealign ? llvm::Align::None() : StackAlignment, SPOffset);
   Alignment = clampStackAlignment(!StackRealignable, Alignment, StackAlignment);
   Objects.insert(Objects.begin(),
                  StackObject(Size, Alignment, SPOffset, IsImmutable,

lib/Target/Mips/MipsConstantIslandPass.cpp

@@ -948,7 +948,7 @@ bool MipsConstantIslands::isWaterInRange(unsigned UserOffset,
   MachineFunction::const_iterator NextBlock = ++Water->getIterator();
   if (NextBlock == MF->end()) {
     NextBlockOffset = BBInfo[Water->getNumber()].postOffset();
-    NextBlockAlignment = llvm::Align();
+    NextBlockAlignment = llvm::Align::None();
   } else {
     NextBlockOffset = BBInfo[NextBlock->getNumber()].Offset;
     NextBlockAlignment = NextBlock->getAlignment();

lib/Target/PowerPC/PPCISelLowering.cpp

@@ -14627,7 +14627,7 @@ bool PPCTargetLowering::getTgtMemIntrinsic(IntrinsicInfo &Info,
     Info.ptrVal = I.getArgOperand(0);
     Info.offset = -VT.getStoreSize()+1;
     Info.size = 2*VT.getStoreSize()-1;
-    Info.align = Align(1);
+    Info.align = Align::None();
     Info.flags = MachineMemOperand::MOLoad;
     return true;
   }
@@ -14661,7 +14661,7 @@ bool PPCTargetLowering::getTgtMemIntrinsic(IntrinsicInfo &Info,
     Info.ptrVal = I.getArgOperand(0);
     Info.offset = 0;
     Info.size = VT.getStoreSize();
-    Info.align = Align(1);
+    Info.align = Align::None();
     Info.flags = MachineMemOperand::MOLoad;
     return true;
   }
@@ -14713,7 +14713,7 @@ bool PPCTargetLowering::getTgtMemIntrinsic(IntrinsicInfo &Info,
     Info.ptrVal = I.getArgOperand(1);
     Info.offset = -VT.getStoreSize()+1;
     Info.size = 2*VT.getStoreSize()-1;
-    Info.align = Align(1);
+    Info.align = Align::None();
     Info.flags = MachineMemOperand::MOStore;
     return true;
   }
@@ -14746,7 +14746,7 @@ bool PPCTargetLowering::getTgtMemIntrinsic(IntrinsicInfo &Info,
     Info.ptrVal = I.getArgOperand(1);
     Info.offset = 0;
     Info.size = VT.getStoreSize();
-    Info.align = Align(1);
+    Info.align = Align::None();
     Info.flags = MachineMemOperand::MOStore;
     return true;
   }

lib/Target/X86/X86ISelLowering.cpp

@@ -4862,7 +4862,7 @@ bool X86TargetLowering::getTgtMemIntrinsic(IntrinsicInfo &Info,
       ScalarVT = MVT::i32;
 
     Info.memVT = MVT::getVectorVT(ScalarVT, VT.getVectorNumElements());
-    Info.align = Align(1);
+    Info.align = Align::None();
     Info.flags |= MachineMemOperand::MOStore;
     break;
   }
@@ -4875,7 +4875,7 @@ bool X86TargetLowering::getTgtMemIntrinsic(IntrinsicInfo &Info,
     unsigned NumElts = std::min(DataVT.getVectorNumElements(),
                                 IndexVT.getVectorNumElements());
     Info.memVT = MVT::getVectorVT(DataVT.getVectorElementType(), NumElts);
-    Info.align = Align(1);
+    Info.align = Align::None();
     Info.flags |= MachineMemOperand::MOLoad;
     break;
   }
@@ -4887,7 +4887,7 @@ bool X86TargetLowering::getTgtMemIntrinsic(IntrinsicInfo &Info,
     unsigned NumElts = std::min(DataVT.getVectorNumElements(),
                                 IndexVT.getVectorNumElements());
     Info.memVT = MVT::getVectorVT(DataVT.getVectorElementType(), NumElts);
-    Info.align = Align(1);
+    Info.align = Align::None();
     Info.flags |= MachineMemOperand::MOStore;
     break;
   }