There is a natural synergy in between the two passes since TempRValueOpt often
times eliminates temporaries that prevent Semantic ARC Opts from removing ARC
traffic.
NOTE: The reason why I am adding an extra run rather than moving the
TempRValueOpt that runs slightly after SemanticARCOpts on non-ownership SIL is
that the run afterwards is able to run on non-ossa code from the stdlib/etc and
eliminate copies that way. With time once we transition to always serializing in
OSSA form, we will be able to get rid of that second run.
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.
Recent clang side change merges ObjCCategoryDecl with the same name. All re-declarations
of a category points to the first category as the canonical one. This patch keeps these
non-canonical redeclarations as separate extensions in Swift.
rdar://problem/59744309
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.
Teach pattern matching involving "as" patterns to work properly in
function builders. The code almost handled this, but prematurely
prechecking expressions in patterns broke it.
e.g. Playground.
A single file script is like a single function body; the interface of
the file does not affect any other files.
So when a completion happens in a single file script, re-parse the whole
file. But we are still be able to reuse imported modules.
rdar://problem/58378157
If we're emitting a designated constructor inside a constrained extension,
we have to use the correct substitution map for calling the property wrapper
backing initializer.
Factor out the computation of this substitution map and use it consistently.
Fixes <rdar://problem/59245068>.
The format specifier constructed by the os log implementation uses '*' for
width and precision, and passes those values to the os_log ABIs as additional
arguments of the message. (The precision/alignment arguments have the
type: count).
Update tests to handle this change.
Handle StmtCondition as part of SolutionApplicationTarget, so we can
generate constraints from it and rewrite directly as part of a solution,
rather than open-coding the operation in the function builder transform.
