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379 Commits

Author SHA1 Message Date
Erik Eckstein
38de5b1ab5 Swift SIL/Optimizer: implement cloning of static init values of globals in Swift 
* add the StaticInitCloner utility
* remove bridging of `copyStaticInitializer` and `createStaticInitializer`
* add `Context.mangleOutlinedVariable` and `Context.createGlobalVariable`
 2023-05-22 15:34:26 +02:00
Erik Eckstein
ee1c52bc77 Swift SIL: add some APIs 2023-05-22 15:34:26 +02:00
Erik Eckstein
b707b5a595 Swift SIL: improve the Builder 
* add new create-functions for instructions
* allow the Builder to build static initializer instructions for global variables
* some refactoring to simplify the implementation
 2023-05-22 15:34:26 +02:00
Erik Eckstein
a4225a9088 Swift SIL: add a few SIL instructions and instruction APIs 2023-05-22 15:34:26 +02:00
Erik Eckstein
7bbf66ab5b ReadOnlyGlobalVariables: don't convert external global vars to lets 
Because we don't know if external variables will be written

Fixes a miscompile
rdar://109476745
 2023-05-19 18:28:22 +02:00
Erik Eckstein
b9169064c6 Swift SIL: add some APIs 
* `Options.assertConfiguration`
* `Argument.isIndirectResult`
* in `Function`: `selfArgument`, `isTransparent`, `performanceConstraints` and `inlineStrategy`
* `BuiltinInst.substitutionMap`
* `SubstitutionMap.replacementTypes`
* `Type.canBeClass`
 2023-05-11 08:11:44 +02:00
Erik Eckstein
4dcd91af7b Swift SIL: add all deallocation instructions and let them conform to the Deallocation protocol 2023-05-11 08:03:19 +02:00
Erik Eckstein
5e2e7e3884 SIL Bridging: use bool for boolean properties 
This was a leftover from the time we didn't use C++ interop
 2023-05-11 08:03:19 +02:00
Erik Eckstein
2b117fd3ee Swift Optimizer: add APIs to copy from or to a global static initializer 
* `Context.copyStaticInitializer(fromInitValue:, to:)`
* `FunctionPassContext.createStaticInitializer(for:,initValue:)`
 2023-05-08 21:23:36 +02:00
Erik Eckstein
e95c6425f2 Swift SIL: add some APIs for global variables 2023-05-08 21:23:36 +02:00
Erik Eckstein
9b51e69dac Swift Optimizer: constant fold builtins in the simplification passes 2023-05-08 21:23:36 +02:00
Erik Eckstein
8a8a895239 alias analysis: compute more precise memory effects of builtin "once" 
* Check if the address in question is even visible from outside the function
* Return the memory effects of the called function

Also, add a new API `Instruction.memoryEffects`, which is internally used by `mayReadFromMemory` et al.
 2023-05-08 21:23:36 +02:00
Erik Eckstein
5992e68d23 EscapeUtils: better handling of noescape closures and convert_function instructions 
* Assume that a noescape closure argument cannot escape a called function
* Handle convert_function instructions

rdar://108837480
 2023-05-03 19:53:19 +02:00
Erik Eckstein
7d70a70acf SIL: add the drop_deinit instruction 
his instruction is a marker for a following destroy instruction to suppress the call of the move-only type's deinitializer.
 2023-04-11 10:25:48 +02:00
Slava Pestov
e24cbbc42f SILOptimizer: Bridge new Pack_Inout, Pack_Owned, Pack_Guaranteed ownership kinds 2023-03-30 14:10:27 -04:00
Erik Eckstein
010efc1ca6 Swift Bridging: use C++ instead of C bridging for the optimizer 2023-03-21 15:33:09 +01:00
Erik Eckstein
04c90166c4 Swift Bridging: use C++ instead of C bridging for BridgedBuilder 2023-03-21 15:33:09 +01:00
Erik Eckstein
b4510105a6 Swift Bridging: remove BridgedNode 2023-03-21 15:33:09 +01:00
Erik Eckstein
7905a9ac64 Swift Bridging: remove C bridging functions for SILDebugLocation 2023-03-21 15:33:09 +01:00
Erik Eckstein
82d9da5981 Swift Bridging: use C++ instead of C bridging for BridgedMultiValueResult 2023-03-21 15:33:09 +01:00
Erik Eckstein
47ac2d2818 Swift Bridging: use C++ instead of C bridging for BridgedArgument 2023-03-21 15:33:09 +01:00
Erik Eckstein
7789b4063e Swift Bridging: remove BridgedMemoryBehavior and use swift.MemoryBehavior instead 2023-03-21 15:33:09 +01:00
Erik Eckstein
4445373808 Swift Bridging: use C++ instead of C bridging for BridgedInstruction 2023-03-21 15:33:09 +01:00
Erik Eckstein
c4f5bab5b7 Swift Bridging: use C++ instead of C bridging for BridgedBasicBlock 2023-03-21 15:33:09 +01:00
Erik Eckstein
c0c0b80c81 Swift Bridging: use C++ instead of C bridging for BridgedGlobalVar 2023-03-21 15:33:09 +01:00
Erik Eckstein
ae7770d911 Swift Bridging: use C++ instead of C bridging for BridgedFunction 2023-03-21 15:33:09 +01:00
Erik Eckstein
e469c16744 Swift Bridging: remove BridgedType and directly use the C++ SILType instead 2023-03-21 15:33:09 +01:00
Erik Eckstein
598644fb92 Swift Bridging: use C++ instead of C bridging for the bridged witness table classes 2023-03-21 15:33:09 +01:00
Erik Eckstein
151f09769f Swift Bridging: use C++ instead of C bridging for BridgedVTable and BridgedVTableEntry 2023-03-21 15:33:09 +01:00
Erik Eckstein
fc2ad09d4b Swift Bridging: use C++ instead of C bridging for BridgedSuccessor 2023-03-21 15:33:09 +01:00
Erik Eckstein
eecea088e7 Swift Bridging: use C++ instead of C bridging for BridgedOperand and BridgedValue 2023-03-21 15:33:09 +01:00
Michael Gottesman
4a309575d7 [sil] Rename [moved] flag on debug_value/alloc_stack to moveable_value_debuginfo. 
This is in preparation for wiring up debug info support for noncopyable
values. Originally this flag name made sense since it was set when we performed
consume operator checking. Now I am going to use it for noncopyable types as
well. I think the new name uses_moveable_value_debuginfo actually describes what
the flag is supposed to do, tell IRGen that the value may be moved since it
needs to use moveable value debug info emission.
 2023-03-19 15:38:42 -07:00
Erik Eckstein
053a38d44b Swift SIL: mark SIL object classes as immortal 
This avoids ARC operations on those objects which improves compile time.
 2023-03-14 21:07:03 +01:00
Erik Eckstein
318c30895f Swift Optimizer: eliminate ARC operations on types which are marked as immortal 
A type (mostly classes) can be attributed with `@_semantics("arc.immortal")`.
ARC operations on values of such types are eliminated.

This is useful for the bridged SIL objects in the swift compiler sources.
 2023-03-14 21:07:03 +01:00
Erik Eckstein
3fca8cd06e Swift SIL: speed up Operand.value 
Instead of doing the type casts and/or conformance lookup on the swift side, do it on the C++ side.
It makes a significant performance difference because `Operand.value` is a time critical function
 2023-03-14 21:07:03 +01:00
Erik Eckstein
f1095556c9 Swift SIL: let var UnaryInstruction.operand return an Operand and not a Value 
To avoid confusion. Instead add specific getters for unary instructions with dedicated names.

NFC
 2023-02-21 17:57:29 +01:00
eeckstein
40f05faf03 Merge pull request #63690 from eeckstein/fix-same-metatype-simplification 
Swift Optimizer: fix a crash when simplifying same-metatype comparisons of function types
 2023-02-16 06:45:00 +01:00
Erik Eckstein
40ed0fb388 Swift Optimizer: fix a crash when simplifying same-metatype comparisons of function types 
The instance type of a metatype instruction is not necessarily a legal lowered SIL Type.
Lower the type before converting it to a SILType.

rdar://105502403
 2023-02-15 21:14:32 +01:00
Erik Eckstein
8984046972 Effects: remove the isExclusive flag from the escapingToArgument effect 
An argument-to-argument escape always involves a store, which makes an exclusive escape impossible.
 2023-02-15 18:17:32 +01:00
Erik Eckstein
7a3ae09cfc Effects: add some comments and add enum argument labels 
For clarity
 2023-02-15 18:17:32 +01:00
Erik Eckstein
dfde580872 Effects: bail if effects are requested for not supported projection paths 
Effects are only defined for operations which don't involve a load.
 In case the argument's path involves a load we need to return the global effects.
 2023-02-11 08:55:20 +01:00
Erik Eckstein
6226d56a52 SmallProjectionPath: add mayHaveTwoClassProjections 2023-02-11 08:55:20 +01:00
Erik Eckstein
8daa54a8c5 SmallProjectionPath: replace hasNoClassProjection with mayHaveClassProjection 
It's less confusing.
NFC
 2023-02-11 08:55:20 +01:00
Erik Eckstein
cef6ef9a84 SIL: add a debug_step instruction 
This instruction can be inserted by Onone optimizations as a replacement for deleted instructions to
ensure that it's possible to single step on its location.
 2023-02-09 06:50:05 +01:00
Erik Eckstein
e92f27c01a Swift SIL: add some APIs to Location 
* `hasValidLineNumber`
* `isAutoGenerated`
* `isDebugSteppable`
 2023-02-09 06:50:05 +01:00
Erik Eckstein
b1c6ae60cd Swift SIL: add metatype APIs to Type 
* `var isMetatype: Bool`
* `var instanceTypeOfMetatype: Type`
 2023-02-09 06:49:58 +01:00
Erik Eckstein
713f6c3946 Swift SIL: add Type.nominal and Type.isOrContainsObjectiveCClass APIs 2023-02-09 06:49:58 +01:00
Erik Eckstein
ae9e3a4976 Swift SIL: fix base class of MarkUninitializedInst 2023-02-09 06:49:58 +01:00
Nate Chandler
6caa5048d0 [WalkUtils] Walk through move_value instructions. 
Addresses the following regressions

StackPromo                                10100   14400   +42.6%   **0.70x**

seen when enabling lexical lifetimes in the standard library.
 2023-01-25 11:39:42 -08:00
Erik Eckstein
d96ef3bedd Swift SIL: add some APIs to Location 
* `var description`
* `func ==`
* `func hasSameSourceLocation(as:)`
 2023-01-16 19:00:09 +01:00