Instead of always opening argument type represented by a collection
without type variables (to support subtyping when element is a labeled tuple),
let's try original type first and if that fails use a slower path with
indirection which attempts `array upcast`. Doing it this way helps to
propagate contextual information faster which fixes a performance regression.
Resolves: rdar://problem/54580247
We have two similar code paths here that should probably be unified. For
now, make sure the more-specific one for pattern matching kicks in first.
Fixes rdar://problem/59838566.
This is something I noticed by inspection while working on
<https://bugs.swift.org/browse/SR-75>.
Inside a static method, 'self' is a metatype value, so
'self.instanceMethod' produces an unbound reference of type
(Self) -> (Args...) -> Results.
You might guess that 'super.instanceMethod' can similarly
be used to produce an unbound method reference that calls
the superclass method given any 'self' value, but unfortunately
it doesn't work.
Instead, 'super.instanceMethod' would produce the same
result as 'self.instanceMethod'. Maybe we can implement this
later, but for now, let's just diagnose the problem.
Note that partially-applied method references with 'super.'
-- namely, 'self.staticMethod' inside a static context, or
'self.instanceMethod' inside an instance context, continue
to work as before.
They have the type (Args...) -> Result; since the self value
has already been applied we don't hit the representational
issue.
Add the platform conditional and set up other basics for the toolchain.
The ConditionalCompilation tests are updated to match, since otherwise
they seem to trip when building on non-OpenBSD platforms. The
Driver/linker test is updated to ensure lld is passed on this platform.
Note that OpenBSD calls "x86_64" as "amd64", so we use that name for the
architecture instead of trying to alias one to the other, as this makes
things simpler.
* Stage in #filePath
To give users of #file time to transition, we are first adding #filePath without changing #file’s behavior. This commit makes that change.
Fixes <rdar://problem/58586626>.
* Correct swiftinterface test line
The only initialization these class objects need is ObjC realization, which can be done
fast with `objc_opt_self` on recent Apple OSes. The cache check just adds code size and
dirties memory.
Creating a @_dynamicReplacement function requires the creation of a
reference to the original function. We need to call SILGenModule's
getFunction to satisfy all the assertions in place.
rdar://59774606
* Simplified the logic for creating static initializers and constant folding for global variables: instead of creating a getter function, directly inline the constant value into the use-sites.
* Wired up the constant folder in GlobalOpt, so that a chains for global variables can be propagated, e.g.
let a = 1
let b = a + 10
let c = b + 5
* Fixed a problem where we didn't create a static initializer if a global is not used in the same module. E.g. a public let variable.
* Simplified the code in general.
rdar://problem/31515927
The pass is already setup for OSSA, so I just enabled it for ownership and
converted its tests over. Eventually, I am going to be able to add support for
eliminating alloc_stack that have a loadabel value and whose lifetime are ended
via a load [take]. But that will be in a forthcoming commit.
Let's delay attempting any bindings for type variables representing
parameters or result type of the closure until the body is "opened"
because it's impossible to infer a full set of bindings until all
constraints related to a closure have been generated.
Resolves: rdar://problem/59741308
Now, guaranteed phi args can also consume begin_borrow. This means our simple
analysis here is not sufficient. I am going to add support for this in a
forthcoming commit.
Optimizations are still not creating guaranteed phi arguments, so no breakage
can result.
