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a0637597b4
make ptr metadata functions callable from stable const fn So far this was done with a bunch of `rustc_allow_const_fn_unstable`. But those should be the exception, not the norm. If we are confident we can expose the ptr metadata APIs *indirectly* in stable const fn, we should just mark them as `rustc_const_stable`. And we better be confident we can do that since it's already been done a while ago. ;) In particular this marks two intrinsics as const-stable: `aggregate_raw_ptr`, `ptr_metadata`. This should be uncontroversial, they are trivial to implement in the interpreter. Cc `@rust-lang/wg-const-eval` `@rust-lang/lang` |
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