================
@@ -3182,34 +3182,100 @@ class ArrayType : public Type, public
llvm::FoldingSetNode {
/// For example, the canonical type for 'int A[4 + 4*100]' is a
/// ConstantArrayType where the element type is 'int' and the size is 404.
class ConstantArrayType final
- : public ArrayType,
- private llvm::TrailingObjects<ConstantArrayType, const Expr *> {
+ : public ArrayType {
friend class ASTContext; // ASTContext creates these.
- friend TrailingObjects;
- llvm::APInt Size; // Allows us to unique the type.
+ struct ExternalSize {
+ ExternalSize(const llvm::APInt &Sz, const Expr *SE)
+ : Size(Sz), SizeExpr(SE) {}
+ llvm::APInt Size; // Allows us to unique the type.
+ const Expr *SizeExpr;
+ };
+ struct InlineSize {
+ InlineSize(uint64_t TSz, uint64_t Sz) : ByteWidth(TSz), Size(Sz) {}
+ uint64_t ByteWidth : 4;
----------------
efriedma-quic wrote:
Do we actually need to store the ByteWidth here? It's always just
Target->getMaxPointerWidth(). Granted, it might be inconvenient to change the
API... in which case, I guess we can store it here.
Maybe consider sticking the ByteWidth in ConstantArrayTypeBitfields; there
should be a few spare bits available there.
https://github.com/llvm/llvm-project/pull/85716
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