Andrew Trick 90c0c8b60f Add rebind_memory SIL instruction. ...

Required for UnsafeRawPointer.withMemoryReboud(to:).

%out_token = rebind_memory %0 : $Builtin.RawPointer to %in_token

%0 must be of $Builtin.RawPointer type

%in_token represents a cached set of bound types from a prior memory state.

%out_token is an opaque $Builtin.Word representing the previously bound
types for this memory region.

This instruction's semantics are identical to ``bind_memory``, except
that the types to which memory will be bound, and the extent of the
memory region is unknown at compile time. Instead, the bound-types are
represented by a token that was produced by a prior memory binding
operation. ``%in_token`` must be the result of bind_memory or

2021-11-14 22:44:46 -08:00

121 KiB

Raw Blame History

View Raw