When creating a specialized witness table, we need to get the right specialized conformance.
In IRGen don't emit associated conformance witness table entries if the protocol is not a class protocol.
In this case the associated type can never be used to create an existential. Therefore such a witness table entry is never used at runtime in embedded swift.
Fixes a compiler crash
rdar://146448091
Extend the metadata representation of protocol conformance descriptors
to include information about the global actor to which the conformance is
isolated (when there is one), as well as the conformance of that type to
the GlobalActor protocol. Emit this metadata whenever a conformance is
isolated.
When performing a conforms-to-protocol check at runtime, check whether
the conformance that was found is isolated. If so, extract the serial
executor for the global actor and check whether we are running on that
executor. If not, the conformance fails.
We previously did not properly compute the link info for type metadata
accessor. This becomes a problem for metadata accessors which are
canonically remote (e.g. the type metadata accessor for `NSError`). This
fixes the incorrect DLLStorage that was being attributed to these
functions.
When it's available, use an open-coded allocator function that returns
an alloca without popping if the allocator is nullptr and otherwise
calls swift_coro_alloc. When it's not available, use the malloc
allocator in the synchronous context.
This allows external tools to locate the metadata pointer without needing to call the accessor function.
This is only useful for non-generic types, so we borrow the HasCanonicalMetadataPrespecializations flag to indicate the presence of this pointer on non-generic types, and it continues to indicate the presence of prespecializations for generic types.
Only emit this pointer for internal/private types with no runtime initialization. Public type metadata can be found with the symbol, and it's not useful for types that require runtime initialization.
This patch adds support for emitting the flag
llvm::DINode::FlagAllCallsDescribed when generating LLVM IR from the
Swift compiler to get call-site information for swift source code.
This patch adds support for serialization of debug value instructions. Enablement is currently gated behind the -experimental-serialize-debug-info flag.
Previously, debug_value instructions were lost during serialization. This made it harder to debug cross module inlined functions.
When TMO is enabled, change IRGen to pass the newly introduced runtime function `swift_coroFrameAlloc` (and pass an additional argument — the hash value) instead of `malloc` when it inserts calls to `coro_id_retcon_once`.
The hashValue is computed based on the current function name (computed in `getDiscriminatorForString`)
rdar://141235957
