[llvm] Replace uses of Type::getPointerTo (NFC)

Work towards removing method Type::getPointerTo.
Opaque ptr cleanup effort.

Author: JOE1994

llvm/lib/CodeGen/SafeStack.cpp

@@ -793,7 +793,7 @@ bool SafeStack::run() {
         DILocation::get(SP->getContext(), SP->getScopeLine(), 0, SP));
   if (SafeStackUsePointerAddress) {
     FunctionCallee Fn = F.getParent()->getOrInsertFunction(
-        "__safestack_pointer_address", StackPtrTy->getPointerTo(0));
+        "__safestack_pointer_address", IRB.getPtrTy(0));
     UnsafeStackPtr = IRB.CreateCall(Fn);
   } else {
     UnsafeStackPtr = TL.getSafeStackPointerLocation(IRB);

llvm/lib/CodeGen/ShadowStackGCLowering.cpp

@@ -326,7 +326,7 @@ bool ShadowStackGCLowering::runOnFunction(Function &F) {
 
   // Initialize the map pointer and load the current head of the shadow stack.
   Instruction *CurrentHead =
-      AtEntry.CreateLoad(StackEntryTy->getPointerTo(), Head, "gc_currhead");
+      AtEntry.CreateLoad(AtEntry.getPtrTy(), Head, "gc_currhead");
   Instruction *EntryMapPtr = CreateGEP(Context, AtEntry, ConcreteStackEntryTy,
                                        StackEntry, 0, 1, "gc_frame.map");
   AtEntry.CreateStore(FrameMap, EntryMapPtr);
@@ -368,8 +368,8 @@ bool ShadowStackGCLowering::runOnFunction(Function &F) {
     Instruction *EntryNextPtr2 =
         CreateGEP(Context, *AtExit, ConcreteStackEntryTy, StackEntry, 0, 0,
                   "gc_frame.next");
-    Value *SavedHead = AtExit->CreateLoad(StackEntryTy->getPointerTo(),
-                                          EntryNextPtr2, "gc_savedhead");
+    Value *SavedHead =
+        AtExit->CreateLoad(AtExit->getPtrTy(), EntryNextPtr2, "gc_savedhead");
     AtExit->CreateStore(SavedHead, Head);
   }
 

llvm/lib/Transforms/Coroutines/CoroInternal.h

@@ -185,7 +185,8 @@ struct LLVM_LIBRARY_VISIBILITY Shape {
     switch (ABI) {
     case coro::ABI::Switch:
       return FunctionType::get(Type::getVoidTy(FrameTy->getContext()),
-                               FrameTy->getPointerTo(), /*IsVarArg*/false);
+                               PointerType::getUnqual(FrameTy->getContext()),
+                               /*IsVarArg=*/false);
     case coro::ABI::Retcon:
     case coro::ABI::RetconOnce:
       return RetconLowering.ResumePrototype->getFunctionType();

llvm/lib/Transforms/Instrumentation/GCOVProfiling.cpp

@@ -1105,14 +1105,11 @@ Function *GCOVProfiler::insertCounterWriteout(
   StructType *EmitFunctionCallArgsTy = StructType::create(
       {Builder.getInt32Ty(), Builder.getInt32Ty(), Builder.getInt32Ty()},
       "emit_function_args_ty");
-  StructType *EmitArcsCallArgsTy = StructType::create(
-      {Builder.getInt32Ty(), Builder.getInt64Ty()->getPointerTo()},
-      "emit_arcs_args_ty");
-  StructType *FileInfoTy =
-      StructType::create({StartFileCallArgsTy, Builder.getInt32Ty(),
-                          EmitFunctionCallArgsTy->getPointerTo(),
-                          EmitArcsCallArgsTy->getPointerTo()},
-                         "file_info");
+  auto *PtrTy = Builder.getPtrTy();
+  StructType *EmitArcsCallArgsTy =
+      StructType::create({Builder.getInt32Ty(), PtrTy}, "emit_arcs_args_ty");
+  StructType *FileInfoTy = StructType::create(
+      {StartFileCallArgsTy, Builder.getInt32Ty(), PtrTy, PtrTy}, "file_info");
 
   Constant *Zero32 = Builder.getInt32(0);
   // Build an explicit array of two zeros for use in ConstantExpr GEP building.

llvm/lib/Transforms/Vectorize/VectorCombine.cpp

@@ -262,8 +262,8 @@ bool VectorCombine::vectorizeLoadInsert(Instruction &I) {
   // It is safe and potentially profitable to load a vector directly:
   // inselt undef, load Scalar, 0 --> load VecPtr
   IRBuilder<> Builder(Load);
-  Value *CastedPtr = Builder.CreatePointerBitCastOrAddrSpaceCast(
-      SrcPtr, MinVecTy->getPointerTo(AS));
+  Value *CastedPtr =
+      Builder.CreatePointerBitCastOrAddrSpaceCast(SrcPtr, Builder.getPtrTy(AS));
   Value *VecLd = Builder.CreateAlignedLoad(MinVecTy, CastedPtr, Alignment);
   VecLd = Builder.CreateShuffleVector(VecLd, Mask);
 
@@ -325,7 +325,7 @@ bool VectorCombine::widenSubvectorLoad(Instruction &I) {
 
   IRBuilder<> Builder(Load);
   Value *CastedPtr =
-      Builder.CreatePointerBitCastOrAddrSpaceCast(SrcPtr, Ty->getPointerTo(AS));
+      Builder.CreatePointerBitCastOrAddrSpaceCast(SrcPtr, Builder.getPtrTy(AS));
   Value *VecLd = Builder.CreateAlignedLoad(Ty, CastedPtr, Alignment);
   replaceValue(I, *VecLd);
   ++NumVecLoad;