================
@@ -1013,6 +1013,24 @@ CodeGenFunction::emitFlexibleArrayMemberSize(const Expr
*E, unsigned Type,
// Can't find the field referenced by the "counted_by" attribute.
return nullptr;
+ if (isa<DeclRefExpr>(Base))
----------------
efriedma-quic wrote:
I'm not sure this reliably detects a "whole struct"? It's not clear to me why
we want to treat `int f(struct X*p) { return __builtin_dynamic_object_size(p,
0); }` differently from `int f2(struct X**p) { return
__builtin_dynamic_object_size(*p, 0); }` here.
Maybe this is fine if other parts of the code detect "whole struct" the same
way, though.
https://github.com/llvm/llvm-project/pull/112636
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