Tuples fun

main.ir.txt

; ModuleID = '-'
target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-apple-macosx10.10"

%Si = type <{ i64 }>
%VSs5Int32 = type <{ i32 }>
%VSs20UnsafeMutablePointer = type <{ i8* }>

@_Tv4main9oneSimpleSi = global %Si zeroinitializer, align 8
@_Tv4main8oneTupleSi = global %Si zeroinitializer, align 8
@_Tv4main8twoTupleTSiSi_ = global <{ %Si, %Si }> zeroinitializer, align 8
@_Tv4main10threeTupleTSiSiSi_ = global <{ %Si, %Si, %Si }> zeroinitializer, align 8
@_TZvOSs7Process5_argcVSs5Int32 = external global %VSs5Int32, align 4
@globalinit_33_1BDF70FFC18749BAB495A73B459ED2F0_token5 = external global i64, align 8
@_TZvOSs7Process11_unsafeArgvGVSs20UnsafeMutablePointerGS0_VSs4Int8__ = external global %VSs20UnsafeMutablePointer, align 8
@"_swift_FORCE_LOAD_$_swiftFoundation" = external global i1
@"_swift_FORCE_LOAD_$_swiftFoundation_$_main" = weak hidden constant i1* @"_swift_FORCE_LOAD_$_swiftFoundation"
@"_swift_FORCE_LOAD_$_swiftObjectiveC" = external global i1
@"_swift_FORCE_LOAD_$_swiftObjectiveC_$_main" = weak hidden constant i1* @"_swift_FORCE_LOAD_$_swiftObjectiveC"
@"_swift_FORCE_LOAD_$_swiftDarwin" = external global i1
@"_swift_FORCE_LOAD_$_swiftDarwin_$_main" = weak hidden constant i1* @"_swift_FORCE_LOAD_$_swiftDarwin"
@"_swift_FORCE_LOAD_$_swiftDispatch" = external global i1
@"_swift_FORCE_LOAD_$_swiftDispatch_$_main" = weak hidden constant i1* @"_swift_FORCE_LOAD_$_swiftDispatch"
@"_swift_FORCE_LOAD_$_swiftSecurity" = external global i1
@"_swift_FORCE_LOAD_$_swiftSecurity_$_main" = weak hidden constant i1* @"_swift_FORCE_LOAD_$_swiftSecurity"
@"_swift_FORCE_LOAD_$_swiftCoreGraphics" = external global i1
@"_swift_FORCE_LOAD_$_swiftCoreGraphics_$_main" = weak hidden constant i1* @"_swift_FORCE_LOAD_$_swiftCoreGraphics"
@llvm.used = appending global [10 x i8*] [i8* bitcast (%Si* @_Tv4main9oneSimpleSi to i8*), i8* bitcast (%Si* @_Tv4main8oneTupleSi to i8*), i8* bitcast (<{ %Si, %Si }>* @_Tv4main8twoTupleTSiSi_ to i8*), i8* bitcast (<{ %Si, %Si, %Si }>* @_Tv4main10threeTupleTSiSiSi_ to i8*), i8* bitcast (i1** @"_swift_FORCE_LOAD_$_swiftFoundation_$_main" to i8*), i8* bitcast (i1** @"_swift_FORCE_LOAD_$_swiftObjectiveC_$_main" to i8*), i8* bitcast (i1** @"_swift_FORCE_LOAD_$_swiftDarwin_$_main" to i8*), i8* bitcast (i1** @"_swift_FORCE_LOAD_$_swiftDispatch_$_main" to i8*), i8* bitcast (i1** @"_swift_FORCE_LOAD_$_swiftSecurity_$_main" to i8*), i8* bitcast (i1** @"_swift_FORCE_LOAD_$_swiftCoreGraphics_$_main" to i8*)], section "llvm.metadata", align 8

define i32 @main(i32, i8**) #0 {
entry:
  %2 = bitcast i8** %1 to i8*
  store i32 %0, i32* getelementptr inbounds (%VSs5Int32* @_TZvOSs7Process5_argcVSs5Int32, i32 0, i32 0), align 4
  %3 = load i64* @globalinit_33_1BDF70FFC18749BAB495A73B459ED2F0_token5, align 8
  %4 = icmp ne i64 %3, -1
  br i1 %4, label %once_not_done, label %once_done

once_not_done:                                    ; preds = %entry
  call void @swift_once(i64* @globalinit_33_1BDF70FFC18749BAB495A73B459ED2F0_token5, i8* bitcast (void ()* @globalinit_33_1BDF70FFC18749BAB495A73B459ED2F0_func5 to i8*))
  br label %once_done

once_done:                                        ; preds = %once_not_done, %entry
  store i8* %2, i8** getelementptr inbounds (%VSs20UnsafeMutablePointer* @_TZvOSs7Process11_unsafeArgvGVSs20UnsafeMutablePointerGS0_VSs4Int8__, i32 0, i32 0), align 8
  store i64 1, i64* getelementptr inbounds (%Si* @_Tv4main9oneSimpleSi, i32 0, i32 0), align 8
  store i64 1, i64* getelementptr inbounds (%Si* @_Tv4main8oneTupleSi, i32 0, i32 0), align 8
  store i64 1, i64* getelementptr inbounds (<{ %Si, %Si }>* @_Tv4main8twoTupleTSiSi_, i32 0, i32 0, i32 0), align 8
  store i64 2, i64* getelementptr inbounds (<{ %Si, %Si }>* @_Tv4main8twoTupleTSiSi_, i32 0, i32 1, i32 0), align 8
  store i64 1, i64* getelementptr inbounds (<{ %Si, %Si, %Si }>* @_Tv4main10threeTupleTSiSiSi_, i32 0, i32 0, i32 0), align 8
  store i64 2, i64* getelementptr inbounds (<{ %Si, %Si, %Si }>* @_Tv4main10threeTupleTSiSiSi_, i32 0, i32 1, i32 0), align 8
  store i64 3, i64* getelementptr inbounds (<{ %Si, %Si, %Si }>* @_Tv4main10threeTupleTSiSiSi_, i32 0, i32 2, i32 0), align 8
  ret i32 0
}

declare void @globalinit_33_1BDF70FFC18749BAB495A73B459ED2F0_func5() #0

declare void @swift_once(i64*, i8*)

attributes #0 = { "target-cpu"="core2" "target-features"="+ssse3,+cx16,+sse,+sse2,+sse3" }

!llvm.module.flags = !{!0, !1, !2, !3, !4, !5, !6, !28, !29}

!0 = !{i32 2, !"Dwarf Version", i32 3}
!1 = !{i32 1, !"Debug Info Version", i32 700000003}
!2 = !{i32 1, !"Objective-C Version", i32 2}
!3 = !{i32 1, !"Objective-C Image Info Version", i32 0}
!4 = !{i32 1, !"Objective-C Image Info Section", !"__DATA, __objc_imageinfo, regular, no_dead_strip"}
!5 = !{i32 4, !"Objective-C Garbage Collection", i32 768}
!6 = !{i32 6, !"Linker Options", !7}
!7 = !{!8, !9, !10, !11, !12, !13, !14, !15, !16, !17, !18, !19, !20, !21, !22, !23, !24, !25, !26, !27}
!8 = !{!"-lswiftCore"}
!9 = !{!"-lswiftFoundation"}
!10 = !{!"-framework", !"Foundation"}
!11 = !{!"-lswiftObjectiveC"}
!12 = !{!"-lswiftDarwin"}
!13 = !{!"-framework", !"CoreServices"}
!14 = !{!"-framework", !"IOKit"}
!15 = !{!"-lswiftDispatch"}
!16 = !{!"-framework", !"CoreFoundation"}
!17 = !{!"-framework", !"DiskArbitration"}
!18 = !{!"-framework", !"CFNetwork"}
!19 = !{!"-lswiftSecurity"}
!20 = !{!"-framework", !"Security"}
!21 = !{!"-lswiftCoreGraphics"}
!22 = !{!"-framework", !"CoreGraphics"}
!23 = !{!"-framework", !"IOSurface"}
!24 = !{!"-framework", !"ApplicationServices"}
!25 = !{!"-framework", !"CoreText"}
!26 = !{!"-framework", !"ImageIO"}
!27 = !{!"-lobjc"}
!28 = !{i32 1, !"PIC Level", i32 2}
!29 = !{i32 1, !"Swift Version", i32 3}

main.sil.txt

sil_stage canonical

import Builtin
import Swift
import SwiftShims

// main.emptyTuple : ()
sil_global @_Tv4main10emptyTupleT_ : $()

// main.oneSimple : Swift.Int
sil_global @_Tv4main9oneSimpleSi : $Int

// main.oneTuple : Swift.Int
sil_global @_Tv4main8oneTupleSi : $Int

// main.twoTuple : (Swift.Int, Swift.Int)
sil_global @_Tv4main8twoTupleTSiSi_ : $(Int, Int)

// main.threeTuple : (Swift.Int, Swift.Int, Swift.Int)
sil_global @_Tv4main10threeTupleTSiSiSi_ : $(Int, Int, Int)

// static Swift.Process._argc : Swift.Int32
sil_global [fragile] @_TZvOSs7Process5_argcVSs5Int32 : $Int32

// globalinit_33_1BDF70FFC18749BAB495A73B459ED2F0_token5
sil_global private_external [fragile] @globalinit_33_1BDF70FFC18749BAB495A73B459ED2F0_token5 : $Builtin.Word

// static Swift.Process._unsafeArgv : Swift.UnsafeMutablePointer<Swift.UnsafeMutablePointer<Swift.Int8>>
sil_global [fragile] @_TZvOSs7Process11_unsafeArgvGVSs20UnsafeMutablePointerGS0_VSs4Int8__ : $UnsafeMutablePointer<UnsafeMutablePointer<Int8>>

// main
sil @main : $@convention(c) (Int32, UnsafeMutablePointer<UnsafeMutablePointer<Int8>>) -> Int32 {
bb0(%0 : $Int32, %1 : $UnsafeMutablePointer<UnsafeMutablePointer<Int8>>):
  %2 = global_addr @_TZvOSs7Process5_argcVSs5Int32 : $*Int32 // user: %3
  store %0 to %2 : $*Int32                        // id: %3
  %4 = global_addr @globalinit_33_1BDF70FFC18749BAB495A73B459ED2F0_token5 : $*Builtin.Word // user: %5
  %5 = address_to_pointer %4 : $*Builtin.Word to $Builtin.RawPointer // user: %7
  // function_ref globalinit_33_1BDF70FFC18749BAB495A73B459ED2F0_func5
  %6 = function_ref @globalinit_33_1BDF70FFC18749BAB495A73B459ED2F0_func5 : $@convention(thin) () -> () // user: %7
  %7 = builtin "once"(%5 : $Builtin.RawPointer, %6 : $@convention(thin) () -> ()) : $()
  %8 = global_addr @_TZvOSs7Process11_unsafeArgvGVSs20UnsafeMutablePointerGS0_VSs4Int8__ : $*UnsafeMutablePointer<UnsafeMutablePointer<Int8>> // user: %9
  store %1 to %8 : $*UnsafeMutablePointer<UnsafeMutablePointer<Int8>> // id: %9
  %10 = tuple ()
  %11 = global_addr @_Tv4main10emptyTupleT_ : $*()
  %12 = global_addr @_Tv4main9oneSimpleSi : $*Int // user: %15
  %13 = integer_literal $Builtin.Int64, 1         // user: %14
  %14 = struct $Int (%13 : $Builtin.Int64)        // user: %15
  store %14 to %12 : $*Int                        // id: %15
  %16 = global_addr @_Tv4main8oneTupleSi : $*Int  // user: %19
  %17 = integer_literal $Builtin.Int64, 1         // user: %18
  %18 = struct $Int (%17 : $Builtin.Int64)        // user: %19
  store %18 to %16 : $*Int                        // id: %19
  %20 = global_addr @_Tv4main8twoTupleTSiSi_ : $*(Int, Int) // users: %21, %22
  %21 = tuple_element_addr %20 : $*(Int, Int), 0  // user: %25
  %22 = tuple_element_addr %20 : $*(Int, Int), 1  // user: %28
  %23 = integer_literal $Builtin.Int64, 1         // user: %24
  %24 = struct $Int (%23 : $Builtin.Int64)        // user: %25
  store %24 to %21 : $*Int                        // id: %25
  %26 = integer_literal $Builtin.Int64, 2         // user: %27
  %27 = struct $Int (%26 : $Builtin.Int64)        // user: %28
  store %27 to %22 : $*Int                        // id: %28
  %29 = global_addr @_Tv4main10threeTupleTSiSiSi_ : $*(Int, Int, Int) // users: %30, %31, %32
  %30 = tuple_element_addr %29 : $*(Int, Int, Int), 0 // user: %35
  %31 = tuple_element_addr %29 : $*(Int, Int, Int), 1 // user: %38
  %32 = tuple_element_addr %29 : $*(Int, Int, Int), 2 // user: %41
  %33 = integer_literal $Builtin.Int64, 1         // user: %34
  %34 = struct $Int (%33 : $Builtin.Int64)        // user: %35
  store %34 to %30 : $*Int                        // id: %35
  %36 = integer_literal $Builtin.Int64, 2         // user: %37
  %37 = struct $Int (%36 : $Builtin.Int64)        // user: %38
  store %37 to %31 : $*Int                        // id: %38
  %39 = integer_literal $Builtin.Int64, 3         // user: %40
  %40 = struct $Int (%39 : $Builtin.Int64)        // user: %41
  store %40 to %32 : $*Int                        // id: %41
  %42 = integer_literal $Builtin.Int32, 0         // user: %43
  %43 = struct $Int32 (%42 : $Builtin.Int32)      // user: %44
  return %43 : $Int32                             // id: %44
}

// Swift._didEnterMain (Swift.Int32, argv : Swift.UnsafeMutablePointer<Swift.UnsafeMutablePointer<Swift.Int8>>) -> ()
sil [transparent] [fragile] @_TFSs13_didEnterMainFTVSs5Int324argvGVSs20UnsafeMutablePointerGS0_VSs4Int8___T_ : $@convention(thin) (Int32, UnsafeMutablePointer<UnsafeMutablePointer<Int8>>) -> ()

// Swift.Int.init (Swift.Int.Type)(_builtinIntegerLiteral : Builtin.Int2048) -> Swift.Int
sil [transparent] [fragile] @_TFSiCfMSiFT22_builtinIntegerLiteralBi2048__Si : $@convention(thin) (Builtin.Int2048, @thin Int.Type) -> Int

// globalinit_33_1BDF70FFC18749BAB495A73B459ED2F0_func5
sil private_external [fragile] @globalinit_33_1BDF70FFC18749BAB495A73B459ED2F0_func5 : $@convention(thin) () -> ()

main.swift

import Foundation

let emptyTuple = ()
let oneSimple = 1
let oneTuple = (1)
let twoTuple = (1,2)
let threeTuple = (1,2,3)