The newer version of clang will issue warnings in more cases,
specifically, -Winvalid-offsetof and -Wunused-but-set-variable.
This cleans up the new warnings issued from header, which shows up for
every TU that includes them. Fixing them should make the remaining
warnings easier to read.
This will let me know the exact source operand used instead of the source value
representative. This will ensure that the name associated with the diagnostic is
not of the representative value, but the actual value that was the source of the
assign.
This is an NFCI commit that is an algebraic refactor.
drop_deinit forwards ownership while effectively stripping the deinitializer. It is similar to a type cast.
Fixes rdar://125590074 ([NonescapableTypes] Nonescapable types
cannot have deinits)
This instruction was given forwarding ownership in the original OSSA
implementation. That will obviously lead to memory leaks. Remove
ownership from this instruction and verify that it is never used for
non-trivial types.
The new instruction is needed for opaque values mode to allow values to
be extracted from tuples containing packs which will appear for example
as function arguments.
APIs on ForwardingInstruction should be written as static taking in
a SILInstruction as a parameter making it awkward.
Introduce a ForwardingOperation wrapper type and move the apis from the
old "mixin" class to the wrapper type.
Add new api getForwardedOperands()
