tbaederr wrote:

The linked standard says:
> Full-expressions evaluated within a core constant expression 
> ([[expr.const]](https://eel.is/c++draft/expr.const)) [1 048 
> 576][.](https://eel.is/c++draft/implimits#1.39.sentence-1)

Is that actually what the "steps" in clang refer to? We seem to check this for 
all statements: 
https://github.com/llvm/llvm-project/blob/99638537cd19b84252685a3dd56535a4d54d690e/clang/lib/AST/ExprConstant.cpp#L5466-L5467

And we check the limit for array sizes:
https://github.com/llvm/llvm-project/blob/99638537cd19b84252685a3dd56535a4d54d690e/clang/lib/AST/ExprConstant.cpp#L1077-L1088

... which is probably irrelevant for the discussion, but better to clarify.

https://github.com/llvm/llvm-project/pull/143785
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