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531 Commits

Author SHA1 Message Date
Erik Eckstein
32af2dd5a4 Swift SIL: an autogenerated Location needs to keep the debug scope. 
Therefore, instead of creating an autogenerated location with a null scope, make an existing location `autoGenerated`.
 2022-09-02 08:56:38 +02:00
Erik Eckstein
082aec0990 Swift SIL: add var FunctionArgument.convention 
Also:
* move the `ArgumentConvention` enum from Function.swift to Argument.swift.
* `FunctionArgument.isExclusiveIndirectParameter` -> `ArgumentConvention.isExclusiveIndirect`
* add `ArgumentConvention.isInout`
 2022-09-02 07:11:49 +02:00
Erik Eckstein
f7aaa35092 Swift SIL: fix KeyPathInst.visitReferencedFunctions 
It crashed for keypath instructions with zero components.
 2022-08-26 18:00:11 +02:00
Erik Eckstein
f6e6b2ecf3 Swift SIL: add the possibility to pass a custom location to Builder initializers. 
And add the static property `Location.autoGeneratedLocation`
 2022-08-26 18:00:11 +02:00
Erik Eckstein
2745565a83 Swift SIL: correctly bridge "invalid" witness table entries. 
Originally, I thought that couldn't appear in valid SIL, but there are "no_default" entries in default witness tables, which map to "invalid" entries.
 2022-08-26 18:00:11 +02:00
Erik Eckstein
2fe1ee5533 Swift SIL: add a few Builder functions 
* add `createAllocStack`
* add `createDeallocStack`
* add `createCopyAddr`
* add `@discardableResult` to the existing `createDeallocStackRef`
 2022-08-24 17:55:02 +02:00
Erik Eckstein
0e59dde0fa Swift SIL: add the TermInst.isFunctionExiting property 2022-08-24 17:55:02 +02:00
Erik Eckstein
bfb284f827 Swift SIL: add a few instructions and Instruction.visitReferencedFunctions 
* add `DynamicFunctionRefInst` and `PreviousDynamicFunctionRefInst`
* add a common base class to all function-referencing instructions: `FunctionRefBaseInst`
* add `KeyPathInst`
* add `IndexAddrInst.base` and `IndexAddrInst.index` getters
* add `Instruction.visitReferencedFunctions` to visit all functions which are referenced by an instruction
 2022-08-24 17:55:02 +02:00
Erik Eckstein
fbb694bcde Swift SIL: add bridging for witness and default witness tables 2022-08-24 17:55:02 +02:00
Erik Eckstein
7816513f0d Swift SIL: add bridging for vTables 2022-08-24 17:55:02 +02:00
Erik Eckstein
7b9b97fb76 Swift SIL: fix BeginAccessInst.endInstructions 2022-08-24 17:54:46 +02:00
Erik Eckstein
fe40707d5e Swift SIL: add Function.isPossiblyUsedExternally and Function.isAvailableExternally 2022-08-24 17:54:46 +02:00
Erik Eckstein
5015555737 Swift SIL: add a utility protocol BridgedRandomAccessCollection 
It fixes the default reflection for bridged random access collections, which usually have a `bridged` stored property.
Conforming to this protocol displays the "real" children of a bridged random access collection and not just `bridged`.
 2022-08-24 17:54:46 +02:00
Erik Eckstein
306e5b0c9c Swift SIL: make Function hashable 2022-08-24 17:54:46 +02:00
Erik Eckstein
3bba7caacc Swift SIL: add var Function.instructions 
To be used to iterate over all instructions in a function without the need of two loops - one for blocks and one for instructions.
 2022-08-24 17:54:46 +02:00
Erik Eckstein
20a8f450dd Swift AccessUtils: improvements and bug fixes 
While I was using the new AccessUtils for a new optimization pass I discovered some areas for improvements. Also I found some bugs.

Changes:

* AccessBase: remove the unhealthy redundancy between `kind` and `baseAddress` types. Now AccessBase is single enum with the relevant base objects/addresses as payloads.

* AccessBase: for `global`, store the `GlobalValue` and not a `global_address` instruction, which is more accurate (because there can be multiple `global_addr`s for a single global variable)

* AccessBase: drop the support for function argument "pointers". The `pointer` is now always a `pointer_to_address` instruction. This also simplifies `PointerIdentification`: either it finds a matching `address_to_pointer` or it bails.

* AccessBase: improve `func isDistinct(from:)`. There are more possibilities to prove that two access bases do not alias.

* AccessBase: replace `var isUniquelyIdentified` with `var hasKnownStorageKind` which is more useful for aliasing checking.

* AccessPath: fix `func isDistinct(from:)`. `SmallProjectionPath.matches` is the wrong way to check if two expression paths may overlap. Instead use the new `SmallProjectionPath.mayOverlap`.

* AccessStoragePathWalker: rename `getAccessStorage` -> `visitAccessStorageRoots` and let it return false if it's not a class/reference AccessBase.

* add tests for `AccessPath.isDistinct(from:)`
 2022-08-22 13:22:14 +02:00
Erik Eckstein
05d62293e6 Swift SIL: add NominalFieldsArray.getNameOfField(withIndex:) 2022-08-22 13:22:06 +02:00
Erik Eckstein
3367fdd04d SmallProjectionPath: add mayOverlap(with:) 
"Overlapping" means that both paths may project the same field.
 2022-08-22 13:22:06 +02:00
Anxhelo Xhebraj
d6192f4f43 Swift SIL: add ScopedInstruction protocol for instructions like BeginAccess 2022-08-11 10:16:40 -07:00
Anxhelo Xhebraj
462d208d15 Swift SIL: add GlobalVariable equality 2022-08-11 10:16:40 -07:00
Anxhelo Xhebraj
e748f01d90 Swift SIL: add constant checking for ref_element_addr field and global 2022-08-11 10:16:40 -07:00
Anxhelo Xhebraj
303ed781ff Swift SIL: add AccessKind to BeginAccess 2022-08-11 10:16:40 -07:00
Egor Zhdan
0e2d438c5b [cxx-interop][SwiftCompilerSources] Use llvm::StringRef instead of BridgedStringRef 
rdar://83361000
 2022-07-21 16:32:16 +01:00
Erik Eckstein
b52297bb79 Swift SIL: some improvements for WalkUtils and EscapeInfo 
* "merge" the `Path` and `State` in WalkUtils into a single `WalkingPath`. This makes it simpler for clients to configure a path and additional state variables. EscapeInfo now defines `EscapePath` which includes the projection path and EscapeInfo's specific state variables.
* Make the `WalkerCache` part of the WalkUtils, so that not all clients have to re-implement it.
* Rename `walkDownResults` -> `walkDownAllResults` and `walkUpOperands` -> `walkUpAllOperands` and make these functions client configurable.
 2022-07-20 13:50:18 +02:00
Erik Eckstein
c871197e1a Swift SIL: fix ApplySite.callerArgIndex 
It needs to return nil in case the callee argument is not really applied by the ApplySite.
This fixes a crash in EscapeInfo when handling "escaping-to" effects:
If the callee operand of an apply instruction is a `partial_apply` of a `function_ref`, the callee-analysis looks through the `partial_apply` and we get the referenced function as a callee.
In this case there are less apply arguments than callee arguments, because the `partial_apply` already "applies" some of the callee arguments.

rdar://96830171
 2022-07-12 17:53:27 +02:00
Anxhelo Xhebraj
03e4e5cdb2 Merge pull request #59729 from Angelogeb/apple/walkutils 
Swift Optimizer: add def-use/use-def walker utilities
 2022-07-07 08:44:31 -07:00
Egor Zhdan
38edc7f377 [cxx-interop][SwiftCompilerSources] Remove getCopiedBridgedStringRef and freeBridgedStringRef 
`std::string`s can now be passed directly between Swift and C++.

rdar://83361087
 2022-07-06 12:57:50 +01:00
Anxhelo Xhebraj
c3ccbde52b Swift Optimizer: update EscapeInfo to use the generic walker utilities 
`EscapeInfo` now conforms to the generic protocols defined in `WalkUtils`.
This simplifies the implementation a bit, since trivial instructions are handled
by `WalkUtils` and `EscapeInfo` only has to handle a subset of instructions
inherent to escape information.
Passes using `EscapeInfo` are updated accordingly to become visitors that
customize the `EscapeInfo` walk.
 2022-07-05 11:28:49 -07:00
Egor Zhdan
f476f6245c [cxx-interop][SwiftCompilerSources] Workaround for std::string crash on arm64 Linux 
`std::string` constructor crashes when called from `SILBridging.cpp`, likely due to a miscompile. This is a workaround that fixes the crash.
 2022-06-15 15:54:45 +01:00
Egor Zhdan
ffb9ee9422 Revert "Revert "[cxx-interop][SwiftCompilerSources] Fix conversion between std::string and Swift.String"" 
This reverts commit 9542837a18.
 2022-06-09 23:40:51 +01:00
Erik Eckstein
a17ee435b6 Swift SIL: fix var ApplySite.arguments 
In case of type-dependent operands, not all operands are part of the arguments
 2022-06-08 22:51:57 +02:00
Egor Zhdan
9542837a18 Revert "[cxx-interop][SwiftCompilerSources] Fix conversion between std::string and Swift.String" 
This reverts commit be711e387f.
 2022-06-08 14:10:04 +01:00
Egor Zhdan
be711e387f [cxx-interop][SwiftCompilerSources] Fix conversion between std::string and Swift.String 
This fixes a dangling pointer issue when creating a `Swift.String` from `std::string`.

Also fixes a warning:
```
warning: variable 's' was never mutated; consider changing to 'let' constant
    var s = SILBasicBlock_debugDescription(bridged)
    ~~~ ^
    let
```

rdar://92963081
rdar://93053488
 2022-05-30 20:06:36 +01:00
Erik Eckstein
a91d541a26 Swift SIL: add ApplySite.substitutionMap and ApplySite.getArgumentConvention() 2022-05-12 21:48:37 +02:00
Erik Eckstein
1a933fc76e Swift SIL: add Type.getIndexOfEnumCase(withName:) 
... to get the enum case index with a given name.
 2022-05-12 21:48:37 +02:00
Erik Eckstein
b0003d51da Swift SIL: add an initializer to create an empty SubstitutionMap 2022-05-12 21:48:37 +02:00
Erik Eckstein
7c71f0091e Swift SIL: add UseList.isSingleUse 2022-05-12 21:48:37 +02:00
Erik Eckstein
dd5d5f97c4 Swift SIL: add Function.hasSemanticsAttribute 2022-05-12 21:48:37 +02:00
Erik Eckstein
ad9dafc9bf Swift SIL: add Value.definingBlock 
and re-factor `Value.definingInstruction`
 2022-05-12 21:48:37 +02:00
Erik Eckstein
3b43da9637 Swift Optimizer: improve ergonomics of Builder and PassContext 
* split the PassUtils.swift file into PassContext.swift and Passes.swift
* rework `Builder` bridging allowing more insertion point variations, e.g. inserting at the end of a block.
* add Builder.create functions for more instructions
* add `PassContext.splitBlock`
* move SIL modification functions from PassContext to extensions of the relevant types (e.g. instructions).
* rename `Location.bridgedLocation` -> `Location.bridged`
 2022-05-12 21:48:37 +02:00
Erik Eckstein
14b985d87e Swift SIL: support ownership 
* add the `Ownership` enum and the `Value.ownership` getter
* add `Function.hasOwnership`
 2022-05-12 21:48:37 +02:00
Erik Eckstein
cd456fa792 Swift SIL: make Function.name and GlobalVariable.name return a StringRef and not a String 
and introduce the StringRef struct.
It's more efficient.

Also, rename the `HasName` protocol to `HasShortDescription`, which introduces the new requirement `shortDescription`. This is need because `name` now has `StringRef` type and not `String` anymore
 2022-05-12 21:48:37 +02:00
Allan Shortlidge
1ffe55b856 Revert "swift SIL: Fix variable 's' was never mutated; consider changing to 'let' constant warnings." 
This reverts commit d83c17e832.
 2022-05-10 10:38:58 -07:00
Allan Shortlidge
d83c17e832 swift SIL: Fix variable 's' was never mutated; consider changing to 'let' constant warnings. 2022-05-06 17:29:12 -07:00
Egor Zhdan
145ed33482 [cxx-interop][SwiftCompilerSources] Use std::string instead of BridgedStringRef 
This reverts commit 2900dec7
 2022-05-03 19:48:14 +01:00
Erik Eckstein
1c4ba46c3b EscapeInfo: fix a bug and some refactoring 
Add a flag `analyzeAddresses` for distinguishing address vs value escape analysis. This is simpler than handling that in the visitUse/visitDef closures.
Also, fix a related bug, which let an address, which is escaping to a function, get unnoticed.
 2022-04-25 08:56:24 +02:00
Josh Soref
d767912be2 Spelling sil (#42471) 
* spelling: accessible

Signed-off-by: Josh Soref <jsoref@users.noreply.github.com>

* spelling: accessories

Signed-off-by: Josh Soref <jsoref@users.noreply.github.com>

* spelling: allocated

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* spelling: amortizes

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* spelling: are

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* spelling: arguments

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* spelling: cacheable

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* spelling: check

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* spelling: clazz

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* spelling: compatible

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* spelling: compilation

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* spelling: completely

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* spelling: construct

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* spelling: conversion

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* spelling: declarations

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* spelling: derivation

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* spelling: deserialization

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* spelling: destroyed

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* spelling: determined

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* spelling: different

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* spelling: doesn't

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* spelling: equality

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* spelling: equivalent

Signed-off-by: Josh Soref <jsoref@users.noreply.github.com>

* spelling: formation

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* spelling: forwards

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* spelling: global

Signed-off-by: Josh Soref <jsoref@users.noreply.github.com>

* spelling: guaranteed

Signed-off-by: Josh Soref <jsoref@users.noreply.github.com>

* spelling: have

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* spelling: identify

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* spelling: inaccessible

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* spelling: indeterminate

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* spelling: indices

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* spelling: inefficient

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* spelling: inheritance

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* spelling: instantaneous

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* spelling: instruction

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* spelling: intentionally

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* spelling: interior

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* spelling: intrinsic

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* spelling: introducing

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* spelling: irrelevant

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* spelling: message

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* spelling: multi

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* spelling: necessarily

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* spelling: object

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* spelling: one

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* spelling: optimization

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* spelling: otherwise

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* spelling: overridden

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* spelling: parameter

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* spelling: pattern

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* spelling: pipeline

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* spelling: possibility

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* spelling: postdominance

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* spelling: providing

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* spelling: reached

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* spelling: recognized

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* spelling: refrigerator

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* spelling: remaining

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* spelling: resilient

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* spelling: retrieve

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* spelling: scavenge

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* spelling: scheduled

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* spelling: separately

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* spelling: serializable

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* spelling: signature

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* spelling: simplicity

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* spelling: specifically

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* spelling: substituted

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* spelling: substitution

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* spelling: subtypes

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* spelling: supplement

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* spelling: syntax

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* spelling: the

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* spelling: there

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* spelling: these

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* spelling: this

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* spelling: though

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* spelling: through

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* spelling: transitively

Signed-off-by: Josh Soref <jsoref@users.noreply.github.com>

* spelling: transpose

Signed-off-by: Josh Soref <jsoref@users.noreply.github.com>

* spelling: trivial

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* spelling: value

Signed-off-by: Josh Soref <jsoref@users.noreply.github.com>

* spelling: verification

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* spelling: visibility

Signed-off-by: Josh Soref <jsoref@users.noreply.github.com>

* spelling: weird

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* spelling: whole

Signed-off-by: Josh Soref <jsoref@users.noreply.github.com>

Co-authored-by: Josh Soref <jsoref@users.noreply.github.com>
 2022-04-22 15:11:09 -07:00
Erik Eckstein
a5ac6c2cff TypeLowering: add a recursive property to check if a type contains a RawPointer 
This is needed for the new escape analysis
 2022-04-22 09:50:07 +02:00
Erik Eckstein
b75108e70a Swift SIL: a few small addition to SmallProjectionPath 
* rename `matchesAllValueFields` -> `topMatchesAnyValueField`
* add `hasSingleClassIndirection` and `hasClassProjection`
* add `popLastClassAndValuesFromTail`
 2022-04-22 09:50:07 +02:00
Erik Eckstein
340efd9e6f Swift SIL: add MultipleValueInstructionResult.index 
And make DestructureStructInst and DestructureTupleInst a UnaryInstruction
 2022-04-22 09:50:07 +02:00