if the only partially-applied argument is a Swift-refcountable
pointer. However, it doesn't require a new heap allocation,
so teach partial-application forwarding how to emit a thunk
when the only capture is directly usable as the context.
Fixes rdar://21084084.
or at least as long as we don't emit the throwing function
Swift SVN r29131
All llvm::Functions created during IRGen will have target-cpu and target-features
attributes if they are non-null.
Update testing cases to expect the attribute in function definition.
Add testing case function-target-features.swift to verify target-cpu and
target-features.
rdar://20772331
Swift SVN r28186
Calls to willThrow are marked as read-none so that the optimizer can remove
them. The willThrow builtin is still generated for all throw/rethrow sites,
but I plan to look at this next.
rdar://20356658
Swift SVN r27877
Some future-proofing to let us change ErrorType's reference counting in the future, or to use various tagged pointer optimizations in its representation.
Swift SVN r27213
