Commit Graph

1537 Commits

Author SHA1 Message Date
John McCall
79fad0cc87 Remove FunctionRef and CodeRef from IRGen in favor of SILDeclRef.
Swift SVN r14248
2014-02-22 01:45:44 +00:00
John McCall
3d5d8fdc03 Resilience expansion is really an aspect of a SILDeclRef.
We should also remove it from IRGen's Explosion API; IRGen
should always use maximal explosion, and SILGen will tell us
whether or not we need to put that in memory somewhere.
But that can be a later commit.

Swift SVN r14242
2014-02-21 23:28:43 +00:00
Doug Gregor
b5af687b6d Emit and use vtable entries for abstract initializers.
Emit vtable entries for abstract initializers. When we're constructing
an object using an abstract initializer based on a metatype value that
is not statically derivable, use the vtable entry to call the
subclass's allocating constructor.

Most of the IRGen work here is hacking around the lossy SILDeclRef ->
(Code|Function)Ref -> SILDeclRef conversion. I'd feel bad about this
if John hadn't already agreed to clean this up at some point.



Swift SVN r14238
2014-02-21 23:15:46 +00:00
John McCall
c21a293243 Lazily emit SILFunctions with non-external linkage.
rdar://13013457

'import Cocoa' is still generating a ton of unnecessary
global metadata, which causes some unused VWTs to be built,
but at least we no longer generate tons of useless global
functions.  At least, we don't in IR-gen --- we still do
all the SILGen work for them.

Swift SVN r14224
2014-02-21 19:58:56 +00:00
John McCall
32cf8b3bac Preserve SIL function order in the parser and IRGen.
We're mostly not that bad about this right now, but lazy
emission is going to wreak havoc.

Note that SILGen itself doesn't really make very good decisions
about the order in which to emit functions, but step one
towards fixing that is actually respecting it.

Swift SVN r14200
2014-02-21 02:22:03 +00:00
Doug Gregor
1e553187cb IRGen: A few more TypeMetadataPtrTy -> ObjCClassPtrTy cleanups.
Swift SVN r14113
2014-02-19 23:26:10 +00:00
Joe Groff
7fd26d22d5 Serialization: Fix a couple of issues with serializing context params of generic SILFunctions.
- Parameterize maybeReadGenericParams' BitstreamCursor so that we can read from
  the correct cursor when trying to read the generic params of a SILFunction.
- Only serialize the context generic params for SILFunctions for which we're
  serializing a complete definition. This fixes issues with us getting the
  wrong archetypes forward-declared from references in other modules.

In this version of the patch, we adjust the deserialization point for the
generic param list to correctly come before we check if the SILFunction block
is empty, and we add a kludge to keep the JIT from crapping itself when it sees
the same transparent definition in multiple REPL lines' modules
<rdar://problem/16094902>.

The previous commit solves a problem this exposed at r14050 in inout deshadowing
that caused memory corruption when transparent functions were imported. This
should now be safe to commit.

Swift SVN r14109
2014-02-19 22:47:25 +00:00
Doug Gregor
27ae27bf04 Start using objc_class* to describe Objective-C class metatypes in IRGen.
Swift SVN r14099
2014-02-19 21:24:00 +00:00
Greg Parker
675952c719 Revert r14030 which appears to segfault performance test hash2.swift.
Swift SVN r14038
2014-02-18 13:18:17 +00:00
Joe Groff
61f7a7c482 Serialization: Fix a couple of issues with serializing context params of generic SILFunctions.
- Parameterize maybeReadGenericParams' BitstreamCursor so that we can read from the correct cursor when trying to read the generic params of a SILFunction.
- Only serialize the context generic params for SILFunctions for which we're serializing a complete definition. This fixes issues with us getting the wrong archetypes forward-declared from references in other modules.

In this version of the patch, we adjust the deserialization point for the generic param list to correctly come before we check if the SILFunction block is empty, and we add a kludge to keep the JIT from crapping itself when it sees the same transparent definition in multiple REPL lines' modules <rdar://problem/16094902>.

Swift SVN r14030
2014-02-18 07:30:11 +00:00
Jordan Rose
0b2541b58f Rename the standard library to "Swift" (instead of "swift")
This is more in line with all other modules currently on our system.
If/when we get our final name for the language, we're at least now set
up to rename the library without /too/ much trouble. (This is mostly just
a lot of searching for "import swift", "swift.", "'swift'", and '"swift"'.
The compiler itself is pretty much just using STDLIB_NAME consistently now,
per r13758.)

<rdar://problem/15972383>

Swift SVN r14001
2014-02-17 19:30:47 +00:00
Joe Groff
b19cfb27ea Drop the context generic params from SILFunctionType.
SILFunctionType is now 100% context free!

Swift SVN r13775
2014-02-11 04:21:20 +00:00
Joe Groff
481fbb7b91 Drop the non-interface types from SILFunctionType.
There are some straggling references to the context generic param list, but nothing uses the non-interface param or result types anymore!

Swift SVN r13725
2014-02-09 22:39:01 +00:00
Chris Lattner
96947b2606 Change silgen to lower string literal lengths to an explicit value, instead of using
the result of the string_literal instruction.

This fixes:
<rdar://problem/15883849> Diagnostic CCP should be able to fold operations on string_literal lengths

I will follow up with cleanups this enables.




Swift SVN r13361
2014-02-03 18:26:46 +00:00
Chris Lattner
f5b85341a1 Expand out the "isComputed" property in AbstractStorageDecl to be an enum
with two kinds, and some more specific predicates that clients can use.

The notion of 'computed or not' isn't specific enough for how properties
are accessed.  We already have problems with ObjC properties that are 
stored but usually accessed through getters and setters, and a bool here
isn't helping matters.

NFC.



Swift SVN r12593
2014-01-20 18:16:30 +00:00
Joe Groff
0776c4b6b8 SIL: Reorient function type lowering toward interface types.
Lower types for SILDeclRefs from the interface types of their referents, dragging the old type along for the ride so we can still offer the context to clients that haven't been weaned off of it. Make SILFunctionType's interface types and generic signature independent arguments of its  Derive the context types of SILFunctionType from the interface types, instead of the other way around. Do a bunch of annoying inseparable work in the AST and IRGen to accommodate the switchover.

Swift SVN r12536
2014-01-18 19:42:02 +00:00
Chris Lattner
b4735381d0 Plumb the DeclContext of the use site down to the "doesVarDeclMemberProduceLValue"
function.  Pretty soon, whether something is an lvalue or not will depend on who is
asking.


Swift SVN r12507
2014-01-17 22:14:02 +00:00
John McCall
eb7dfb39ac Remove more dead code.
It was convenient to just assume that the SILModule defines
the deallocating destructor function.  This should probably
be represented somehow in e.g. the sil_vtable instead of
being an implicit dependency.

Swift SVN r12412
2014-01-16 19:35:50 +00:00
John McCall
6da9ad307a More dead code.
Swift SVN r12411
2014-01-16 19:35:48 +00:00
John McCall
3c0d18dc1f Pass a ResilienceExpansion when mangling a SILDeclRef.
Swift SVN r12366
2014-01-16 00:36:39 +00:00
John McCall
a1b469ed2f ExplosionKind -> ResilienceExpansion. NFC.
Swift SVN r12364
2014-01-16 00:25:29 +00:00
John McCall
5c4a43d5e4 Good riddance to dead code.
Swift SVN r12360
2014-01-15 23:32:18 +00:00
Doug Gregor
e137dbf4f3 Remove an overactive assert regarding the presence of top-level code.
Multiple .swift files can contribute to the same IRGenModule; don't
explode when one of them has top-level code. Fixes ListMaker for real.



Swift SVN r12299
2014-01-14 23:11:38 +00:00
Connor Wakamo
02f52c6c26 [IRGen] Add a PrettyStackTraceEntry in IRGenModule::emitSourceFile() indicating which file is being emitted.
Swift SVN r12256
2014-01-13 22:17:37 +00:00
Doug Gregor
fc7dfb2fae Start emitting .cxx_construct methods for Objective-C-derived classes.
When we're using Objective-C's memory allocation, emit .cxx_construct
methods whenever we have instance variables with in-class
initializers. Presently, these methods are just empty stubs.

Swift SVN r12211
2014-01-12 04:31:52 +00:00
Doug Gregor
19f0aaf44c Only emit the Objective-C -.cxx_destruct when it has something to do.
This saves some deallocation time in the Objective-C runtime for
simple Swift classes that inherit from Objective-C classes.

Swift SVN r12208
2014-01-12 01:32:09 +00:00
Doug Gregor
7950fc2df6 Only emit the Objective-C entry point for the ivar destroyer (-.cxx_destruct).
The Swift entry point will never be referenced by anything, so don't
bother generating it.

Swift SVN r12207
2014-01-12 00:50:12 +00:00
Doug Gregor
3524a79fa0 Emit .cxx_destruct for destruction of ivars in Objective-C-derived classes.
The Objective-C runtime executes the .cxx_destruct method after the
last -dealloc has executed when destroying an object, allowing the
instance variables to remain live even after the subclass's
destructor/-dealloc has executed, which is important for memory
safety. This fixes the majority of <rdar://problem/15136592>.

Note that IRGenModule::getAddrOfIVarDestroyer() contains  an egregious
hack to find the ivar destructor SIL function via a linear
search. We need a better way to find SIL functions that we know exist,
because LinkEntity does not suffice.

Swift SVN r12206
2014-01-12 00:17:42 +00:00
Doug Gregor
34113ffee4 Emit both Swift and Objective-C entry points for -dealloc.
The Swift entry point is required for the Swift metadata, while the
Objective-C entry point goes into the Objective-C metadata. As part of
this, stop emitting the destroying destructor for classes that use
Objective-C allocation: it won't work anyway.

Swift SVN r12199
2014-01-11 04:37:39 +00:00
Adrian Prantl
946dc5678b Debug info: Provide an in interface for LLDB to mangle types and refactor
some code in IRGenDebugInfo along the way.
This is WIP for rdar://problem/15498877.

Swift SVN r12146
2014-01-10 22:35:53 +00:00
Doug Gregor
993754c1fe IR generation for the dealloc_ref SIL instruction.
Note that this lowering currently assumes that the static type of the class is its dynamic type. This should be a flag on the dealloc_ref instruction, not an assumption.

Swift SVN r12144
2014-01-10 22:32:52 +00:00
John McCall
5da6defa1f Clean up the linkage model and the computation of linkage.
In general, this forces SILGen and IRGen code that's grabbing
a declaration to state whether it's doing so to define it.

Change SIL serialization to serialize the linkage of functions
and global variables, which means also serializing declarations.

Change the deserializer to use this stored linkage, even when
only deserializing a declaration, and to call a callback to
inform the client that it has deserialized a new entity.

Take advantage of that callback in the linking pass to alter
the deserialized linkage as appropriate for the fact that we
imported the declaration.  This computation should really take
advantage of the relationship between modules, but currently
it does not.

Swift SVN r12090
2014-01-09 08:58:07 +00:00
John McCall
12b1c9daf7 Add support for multiple encodings to the string_literal
SIL instruction.  Implement IR-gen support for same.  Fix
the parsing of SIL string literals to properly unescape them.

SIL-gen still emits UTF8 literals unconditionally.

Swift SVN r11904
2014-01-04 11:42:57 +00:00
Jordan Rose
b1b50a134e Autolinking: include all imported modules.
Although Cocoa.framework re-exports AppKit, Foundation, and CoreData, an
arbitrary library does not re-export most of its imports. Normally this
would be fine, but the Clang importer can pull in types too eagerly and
then generate thunks and wrappers for things we don't care about. At least
for now, return to the behavior of autolinking /anything/ that gets visibly
imported.

<rdar://problem/15705923>

Swift SVN r11844
2014-01-03 01:21:11 +00:00
Chris Lattner
8d854f3e0b straighten out IRGen's @lvalue vs @inout handling. Since SILGen lowers all
@lvalue types, IRGen only needs to handle @inout.


Swift SVN r11799
2014-01-01 20:35:02 +00:00
Chris Lattner
9ae289de46 Drive the semantic wedge harder into lvalues. Now, instead of having one LValueType
with qualifiers on it, we have two distinct types:
 - LValueType(T) aka @lvalue T, which is used for mutable values on the LHS of an
   assignment in the typechecker.
 - InOutType(T) aka @inout T, which is used for @inout arguments, and the implicit
   @inout self argument of mutable methods on value types.  This type is also used
   at the SIL level for address types.

While I detangled a number of cases that were checking for LValueType (without checking
qualifiers) and only meant @inout or @lvalue, there is more to be done here.  Notably,
getRValueType() still strips @inout, which is totally and unbearably wrong.



Swift SVN r11727
2013-12-29 22:23:11 +00:00
Chris Lattner
d3c91387e9 Substantially simplify the API to LValueType now that nonsettable is gone.
Swift SVN r11703
2013-12-28 22:48:44 +00:00
Joe Groff
3e30cbcfef SILGen/IRGen: Don't emit top_level_code for libraries.
If there's no script-mode file in a module, don't produce a top_level_code SILFunction for it, and don't consider emitting an LLVM global_ctor for it. We should never emit static constructors from user code anymore.

Swift SVN r11644
2013-12-26 00:18:29 +00:00
Joe Groff
e06ee37dca Enable SIL protocol witnesses.
We should be able to cut out another layer of IRGen grime now.

This does XFAIL one test, test/Prototypes/TextFormatting.swift, which fails because of a weird archetype ordering in a nested substitution list. This should get sorted out by switching to interface types, so I'm going to let it go until then.

Swift SVN r11618
2013-12-24 04:36:03 +00:00
Joe Groff
1690f5265c IRGen: Emit witness tables as exported symbols in -emit-sil-protocol-witness-tables mode.
SILGen eagerly produces witness tables for all of the conformances defined in the module, which is what we want in order to make them runtime-unique. Have IRGen follow suit. This should address a ton of radars about breakage with non-unique conformances once SIL witnesses are turned on. We will need some runtime machinery to handle witness tables with dependent fields, but since we currently ignore the associated type fields of witnesses, we can get away with emitting direct references to all witness tables for now.

Swift SVN r11608
2013-12-23 20:31:49 +00:00
Chris Lattner
b29748a6be remove the ASTContext argument from Type::transform,
(various) FunctionType::get's, ArrayType::get,
ArraySliceType::get, OptionalType::get, and a few
other places.

There is more to be done here, but this is all I plan to do
for now.


Swift SVN r11497
2013-12-20 02:23:21 +00:00
Chris Lattner
1472e4d914 Remove the ASTContext argument from LValueType::get(). It is already
only two loads away from the type argument passed in.



Swift SVN r11496
2013-12-20 01:28:50 +00:00
Adrian Prantl
baa048e89a Remove functions from the debug info generator's internal data structures
prior to erasing them from the module. This should fix
<rdar://problem/15700509> ASan reports a use-after-free in IRGen

Swift SVN r11479
2013-12-19 19:37:56 +00:00
Joe Groff
017440165e Fix the weird capitalization of MetaTypeType.
Swift SVN r11475
2013-12-19 18:43:08 +00:00
John McCall
c5aa41ffd1 Change around some manglings to make them carry more
information and be easier to demangle.

Swift SVN r11423
2013-12-18 08:33:52 +00:00
Connor Wakamo
3e81830385 Move "include/swift/IRGen/Options.h" to "include/swift/AST/IRGenOptions.h".
This commit only moves the header file; updating the class so that it is no longer in the irgen namespace will be handled separately.

Swift SVN r11404
2013-12-18 01:17:09 +00:00
John McCall
0bfa86673f Introduce (but don't yet create) a new kind of DeclContext for
various kinds of expressions that appear outside of local
evaluation contexts.

Swift SVN r11176
2013-12-12 03:36:17 +00:00
Joe Groff
6547c69b33 Turn on lazy global initializers.
Swift SVN r11136
2013-12-11 18:59:56 +00:00
Joe Groff
910b9625a4 IRGen: Change the magic code to populate C_ARGC/C_ARGV to go through their lazy initializers.
Swift SVN r11135
2013-12-11 18:59:55 +00:00
Dmitri Hrybenko
f8e0070ce1 Simplify: use a fixed-size array as suggested by Jordan
Swift SVN r11116
2013-12-11 02:30:26 +00:00