sil-hello-world
Simple SIL(Swift Intermediate Language)
hello world
Notes
inspired by dfellis's llvm-hello-world
How To
$ swiftc -emit-sil main.swift > main.silResult
main.swift
func main() {
print("hello world")
}main.sil
sil_stage canonical
import Builtin
import Swift
import SwiftShims
func main()
// main
sil @main : $@convention(c) (Int32, UnsafeMutablePointer<Optional<UnsafeMutablePointer<Int8>>>) -> Int32 {
bb0(%0 : $Int32, %1 : $UnsafeMutablePointer<Optional<UnsafeMutablePointer<Int8>>>):
%2 = integer_literal $Builtin.Int32, 0 // user: %3
%3 = struct $Int32 (%2 : $Builtin.Int32) // user: %4
return %3 : $Int32 // id: %4
} // end sil function 'main'
// main()
sil hidden @$s4mainAAyyF : $@convention(thin) () -> () {
bb0:
%0 = integer_literal $Builtin.Word, 1 // user: %2
// function_ref _allocateUninitializedArray<A>(_:)
%1 = function_ref @$ss27_allocateUninitializedArrayySayxG_BptBwlF : $@convention(thin) <τ_0_0> (Builtin.Word) -> (@owned Array<τ_0_0>, Builtin.RawPointer) // user: %2
%2 = apply %1<Any>(%0) : $@convention(thin) <τ_0_0> (Builtin.Word) -> (@owned Array<τ_0_0>, Builtin.RawPointer) // users: %4, %3
%3 = tuple_extract %2 : $(Array<Any>, Builtin.RawPointer), 0 // user: %15
%4 = tuple_extract %2 : $(Array<Any>, Builtin.RawPointer), 1 // user: %5
%5 = pointer_to_address %4 : $Builtin.RawPointer to [strict] $*Any // user: %12
%6 = string_literal utf8 "hello world" // user: %11
%7 = integer_literal $Builtin.Word, 11 // user: %11
%8 = integer_literal $Builtin.Int1, -1 // user: %11
%9 = metatype $@thin String.Type // user: %11
// function_ref String.init(_builtinStringLiteral:utf8CodeUnitCount:isASCII:)
%10 = function_ref @$sSS21_builtinStringLiteral17utf8CodeUnitCount7isASCIISSBp_BwBi1_tcfC : $@convention(method) (Builtin.RawPointer, Builtin.Word, Builtin.Int1, @thin String.Type) -> @owned String // user: %11
%11 = apply %10(%6, %7, %8, %9) : $@convention(method) (Builtin.RawPointer, Builtin.Word, Builtin.Int1, @thin String.Type) -> @owned String // user: %13
%12 = init_existential_addr %5 : $*Any, $String // user: %13
store %11 to %12 : $*String // id: %13
// function_ref _finalizeUninitializedArray<A>(_:)
%14 = function_ref @$ss27_finalizeUninitializedArrayySayxGABnlF : $@convention(thin) <τ_0_0> (@owned Array<τ_0_0>) -> @owned Array<τ_0_0> // user: %15
%15 = apply %14<Any>(%3) : $@convention(thin) <τ_0_0> (@owned Array<τ_0_0>) -> @owned Array<τ_0_0> // users: %24, %21
// function_ref default argument 1 of print(_:separator:terminator:)
%16 = function_ref @$ss5print_9separator10terminatoryypd_S2StFfA0_ : $@convention(thin) () -> @owned String // user: %17
%17 = apply %16() : $@convention(thin) () -> @owned String // users: %23, %21
// function_ref default argument 2 of print(_:separator:terminator:)
%18 = function_ref @$ss5print_9separator10terminatoryypd_S2StFfA1_ : $@convention(thin) () -> @owned String // user: %19
%19 = apply %18() : $@convention(thin) () -> @owned String // users: %22, %21
// function_ref print(_:separator:terminator:)
%20 = function_ref @$ss5print_9separator10terminatoryypd_S2StF : $@convention(thin) (@guaranteed Array<Any>, @guaranteed String, @guaranteed String) -> () // user: %21
%21 = apply %20(%15, %17, %19) : $@convention(thin) (@guaranteed Array<Any>, @guaranteed String, @guaranteed String) -> ()
release_value %19 : $String // id: %22
release_value %17 : $String // id: %23
release_value %15 : $Array<Any> // id: %24
%25 = tuple () // user: %26
return %25 : $() // id: %26
} // end sil function '$s4mainAAyyF'
// _allocateUninitializedArray<A>(_:)
sil [serialized] [always_inline] [_semantics "array.uninitialized_intrinsic"] @$ss27_allocateUninitializedArrayySayxG_BptBwlF : $@convention(thin) <τ_0_0> (Builtin.Word) -> (@owned Array<τ_0_0>, Builtin.RawPointer)
// String.init(_builtinStringLiteral:utf8CodeUnitCount:isASCII:)
sil [serialized] [always_inline] [readonly] [_semantics "string.makeUTF8"] @$sSS21_builtinStringLiteral17utf8CodeUnitCount7isASCIISSBp_BwBi1_tcfC : $@convention(method) (Builtin.RawPointer, Builtin.Word, Builtin.Int1, @thin String.Type) -> @owned String
// _finalizeUninitializedArray<A>(_:)
sil shared_external [serialized] [readnone] [_semantics "array.finalize_intrinsic"] @$ss27_finalizeUninitializedArrayySayxGABnlF : $@convention(thin) <Element> (@owned Array<Element>) -> @owned Array<Element> {
// %0 // user: %2
bb0(%0 : $Array<Element>):
%1 = alloc_stack $Array<Element> // users: %6, %5, %4, %2
store %0 to %1 : $*Array<Element> // id: %2
// function_ref Array._endMutation()
%3 = function_ref @$sSa12_endMutationyyF : $@convention(method) <τ_0_0> (@inout Array<τ_0_0>) -> () // user: %4
%4 = apply %3<Element>(%1) : $@convention(method) <τ_0_0> (@inout Array<τ_0_0>) -> ()
%5 = load %1 : $*Array<Element> // user: %7
dealloc_stack %1 : $*Array<Element> // id: %6
return %5 : $Array<Element> // id: %7
} // end sil function '$ss27_finalizeUninitializedArrayySayxGABnlF'
// default argument 1 of print(_:separator:terminator:)
sil shared_external [serialized] @$ss5print_9separator10terminatoryypd_S2StFfA0_ : $@convention(thin) () -> @owned String {
bb0:
%0 = string_literal utf8 " " // user: %5
%1 = integer_literal $Builtin.Word, 1 // user: %5
%2 = integer_literal $Builtin.Int1, -1 // user: %5
%3 = metatype $@thin String.Type // user: %5
// function_ref String.init(_builtinStringLiteral:utf8CodeUnitCount:isASCII:)
%4 = function_ref @$sSS21_builtinStringLiteral17utf8CodeUnitCount7isASCIISSBp_BwBi1_tcfC : $@convention(method) (Builtin.RawPointer, Builtin.Word, Builtin.Int1, @thin String.Type) -> @owned String // user: %5
%5 = apply %4(%0, %1, %2, %3) : $@convention(method) (Builtin.RawPointer, Builtin.Word, Builtin.Int1, @thin String.Type) -> @owned String // user: %6
return %5 : $String // id: %6
} // end sil function '$ss5print_9separator10terminatoryypd_S2StFfA0_'
// default argument 2 of print(_:separator:terminator:)
sil shared_external [serialized] @$ss5print_9separator10terminatoryypd_S2StFfA1_ : $@convention(thin) () -> @owned String {
bb0:
%0 = string_literal utf8 "\n" // user: %5
%1 = integer_literal $Builtin.Word, 1 // user: %5
%2 = integer_literal $Builtin.Int1, -1 // user: %5
%3 = metatype $@thin String.Type // user: %5
// function_ref String.init(_builtinStringLiteral:utf8CodeUnitCount:isASCII:)
%4 = function_ref @$sSS21_builtinStringLiteral17utf8CodeUnitCount7isASCIISSBp_BwBi1_tcfC : $@convention(method) (Builtin.RawPointer, Builtin.Word, Builtin.Int1, @thin String.Type) -> @owned String // user: %5
%5 = apply %4(%0, %1, %2, %3) : $@convention(method) (Builtin.RawPointer, Builtin.Word, Builtin.Int1, @thin String.Type) -> @owned String // user: %6
return %5 : $String // id: %6
} // end sil function '$ss5print_9separator10terminatoryypd_S2StFfA1_'
// print(_:separator:terminator:)
sil @$ss5print_9separator10terminatoryypd_S2StF : $@convention(thin) (@guaranteed Array<Any>, @guaranteed String, @guaranteed String) -> ()
// Array._endMutation()
sil shared_external [serialized] [_semantics "array.end_mutation"] @$sSa12_endMutationyyF : $@convention(method) <Element> (@inout Array<Element>) -> () {
// %0 // users: %9, %1
bb0(%0 : $*Array<Element>):
%1 = struct_element_addr %0 : $*Array<Element>, #Array._buffer // user: %2
%2 = struct_element_addr %1 : $*_ArrayBuffer<Element>, #_ArrayBuffer._storage // user: %3
%3 = struct_element_addr %2 : $*_BridgeStorage<__ContiguousArrayStorageBase>, #_BridgeStorage.rawValue // user: %4
%4 = load %3 : $*Builtin.BridgeObject // user: %5
%5 = end_cow_mutation %4 : $Builtin.BridgeObject // user: %6
%6 = struct $_BridgeStorage<__ContiguousArrayStorageBase> (%5 : $Builtin.BridgeObject) // user: %7
%7 = struct $_ArrayBuffer<Element> (%6 : $_BridgeStorage<__ContiguousArrayStorageBase>) // user: %8
%8 = struct $Array<Element> (%7 : $_ArrayBuffer<Element>) // user: %9
store %8 to %0 : $*Array<Element> // id: %9
%10 = tuple () // user: %11
return %10 : $() // id: %11
} // end sil function '$sSa12_endMutationyyF'
// Mappings from '#fileID' to '#filePath':
// 'main/main.swift' => 'main.swift'