================
@@ -62,7 +62,10 @@ struct RegisterInfo {
/// rax ax, ah, and al.
uint32_t *invalidate_regs;
/// If not nullptr, a type defined by XML descriptions.
- const RegisterFlags *flags_type;
+ /// This is mutable so that it may be updated after the register info tables
+ /// have been constructed. For example a specific target OS may have a
+ /// different layout.
+ mutable const RegisterFlags *flags_type;
----------------
jasonmolenda wrote:
I've never used `mutable`, but declaring an ivar `mutable const` doesn't make
sense to me. I understand that marking an ivar `mutable` means a method marked
`const` can still modify it, fine I'm sure that's useful. But I don't see why
marking this `mutable const` is about?
https://github.com/llvm/llvm-project/pull/70300
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