================
@@ -416,6 +416,13 @@ added in the future:
This calling convention, like the `PreserveMost` calling convention, will
be
used by a future version of the ObjectiveC runtime and should be considered
experimental at this time.
+"``preserve_nonecc``" - The `PreserveNone` calling convention
+ This calling convention doesn't preserve any general registers. So all
+ general registers are caller saved registers. It also uses all general
+ registers to pass arguments. This attribute doesn't impact non-general
+ purpose registers (e.g. floating point registers, on X86 XMMs/YMMs).
----------------
david-xl wrote:
Document that this is X86-only for now?
https://github.com/llvm/llvm-project/pull/76868
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