[LLVM][TypeSize] Remove default constructor.

[paulwalker-arm]

Implements the follow-on work requesting on #75614.

[llvmbot]

@llvm/pr-subscribers-clang-codegen
@llvm/pr-subscribers-clang

@llvm/pr-subscribers-llvm-support

Author: Paul Walker (paulwalker-arm)

Changes

Implements the follow-on work requesting on #75614.

---

Full diff: https://github.com/llvm/llvm-project/pull/82810.diff

2 Files Affected:

• (modified) clang/lib/CodeGen/CGCall.cpp (+6-9)
• (modified) llvm/include/llvm/Support/TypeSize.h (-2)

diff --git a/clang/lib/CodeGen/CGCall.cpp b/clang/lib/CodeGen/CGCall.cpp
index d05cf1c6e1814e..0d86fcf544d0fd 100644
--- a/clang/lib/CodeGen/CGCall.cpp
+++ b/clang/lib/CodeGen/CGCall.cpp
@@ -3221,12 +3221,10 @@ void CodeGenFunction::EmitFunctionProlog(const CGFunctionInfo &FI,
 
       llvm::StructType *STy =
           dyn_cast<llvm::StructType>(ArgI.getCoerceToType());
-      llvm::TypeSize StructSize;
-      llvm::TypeSize PtrElementSize;
       if (ArgI.isDirect() && !ArgI.getCanBeFlattened() && STy &&
           STy->getNumElements() > 1) {
-        StructSize = CGM.getDataLayout().getTypeAllocSize(STy);
-        PtrElementSize =
+        llvm::TypeSize StructSize = CGM.getDataLayout().getTypeAllocSize(STy);
+        llvm::TypeSize PtrElementSize =
             CGM.getDataLayout().getTypeAllocSize(ConvertTypeForMem(Ty));
         if (STy->containsHomogeneousScalableVectorTypes()) {
           assert(StructSize == PtrElementSize &&
@@ -5310,12 +5308,11 @@ RValue CodeGenFunction::EmitCall(const CGFunctionInfo &CallInfo,
 
       llvm::StructType *STy =
           dyn_cast<llvm::StructType>(ArgInfo.getCoerceToType());
-      llvm::Type *SrcTy = ConvertTypeForMem(I->Ty);
-      llvm::TypeSize SrcTypeSize;
-      llvm::TypeSize DstTypeSize;
       if (STy && ArgInfo.isDirect() && !ArgInfo.getCanBeFlattened()) {
-        SrcTypeSize = CGM.getDataLayout().getTypeAllocSize(SrcTy);
-        DstTypeSize = CGM.getDataLayout().getTypeAllocSize(STy);
+        llvm::Type *SrcTy = ConvertTypeForMem(I->Ty);
+        llvm::TypeSize SrcTypeSize =
+            CGM.getDataLayout().getTypeAllocSize(SrcTy);
+        llvm::TypeSize DstTypeSize = CGM.getDataLayout().getTypeAllocSize(STy);
         if (STy->containsHomogeneousScalableVectorTypes()) {
           assert(SrcTypeSize == DstTypeSize &&
                  "Only allow non-fractional movement of structure with "
diff --git a/llvm/include/llvm/Support/TypeSize.h b/llvm/include/llvm/Support/TypeSize.h
index 1b793b0eccf3c7..68dbe1ea3062ab 100644
--- a/llvm/include/llvm/Support/TypeSize.h
+++ b/llvm/include/llvm/Support/TypeSize.h
@@ -321,8 +321,6 @@ class TypeSize : public details::FixedOrScalableQuantity<TypeSize, uint64_t> {
       : FixedOrScalableQuantity(V) {}
 
 public:
-  constexpr TypeSize() : FixedOrScalableQuantity(0, false) {}
-
   constexpr TypeSize(ScalarTy Quantity, bool Scalable)
       : FixedOrScalableQuantity(Quantity, Scalable) {}