; LLVM IR from facebookresearch/momentum :: momentum/test/io (io_helpers_iphoneos)

; Unoptimized IR (clang -disable-llvm-passes):
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

%"class.std::optional" = type { %"struct.std::_Optional_base" }
%"struct.std::_Optional_base" = type { %"struct.std::_Optional_payload" }
%"struct.std::_Optional_payload" = type { %"struct.std::_Optional_payload.base", [7 x i8] }
%"struct.std::_Optional_payload.base" = type { %"struct.std::_Optional_payload_base.base" }
%"struct.std::_Optional_payload_base.base" = type <{ %"union.std::_Optional_payload_base<std::__cxx11::basic_string<char>>::_Storage", i8 }>
%"union.std::_Optional_payload_base<std::__cxx11::basic_string<char>>::_Storage" = type { %"class.std::__cxx11::basic_string" }
%"class.std::__cxx11::basic_string" = type { %"struct.std::__cxx11::basic_string<char>::_Alloc_hider", i64, %union.anon }
%"struct.std::__cxx11::basic_string<char>::_Alloc_hider" = type { ptr }
%union.anon = type { i64, [8 x i8] }
%"class.std::basic_string_view" = type { i64, ptr }
%"class.std::allocator" = type { i8 }

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN8momentum9GetEnvVarB5cxx11ESt17basic_string_viewIcSt11char_traitsIcEE(ptr dead_on_unwind noalias writable sret(%"class.std::optional") align 8 %0, i64 %1, ptr %2) #0 personality ptr @__gxx_personality_v0 {
  %4 = alloca ptr, align 8
  %5 = alloca %"class.std::basic_string_view", align 8
  %6 = alloca %"class.std::__cxx11::basic_string", align 8
  %7 = alloca %"class.std::allocator", align 1
  %8 = alloca ptr, align 8
  %9 = alloca i32, align 4
  %10 = alloca ptr, align 8
  %11 = alloca i32, align 4
  store ptr %0, ptr %4, align 8
  %12 = getelementptr inbounds { i64, ptr }, ptr %5, i32 0, i32 0
  store i64 %1, ptr %12, align 8
  %13 = getelementptr inbounds { i64, ptr }, ptr %5, i32 0, i32 1
  store ptr %2, ptr %13, align 8
  call void @llvm.lifetime.start.p0(i64 32, ptr %6) #4
  call void @llvm.lifetime.start.p0(i64 1, ptr %7) #4
  call void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %7) #4
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2ISt17basic_string_viewIcS2_EvEERKT_RKS3_(ptr noundef nonnull align 8 dereferenceable(32) %6, ptr noundef nonnull align 8 dereferenceable(16) %5, ptr noundef nonnull align 1 dereferenceable(1) %7)
          to label %14 unwind label %21

14:                                               ; preds = %3
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %7) #4
  call void @llvm.lifetime.end.p0(i64 1, ptr %7) #4
  call void @llvm.lifetime.start.p0(i64 8, ptr %10) #4
  %15 = call noundef ptr @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE5c_strEv(ptr noundef nonnull align 8 dereferenceable(32) %6) #4
  %16 = call ptr @getenv(ptr noundef %15) #4
  store ptr %16, ptr %10, align 8, !tbaa !5
  %17 = load ptr, ptr %10, align 8, !tbaa !5
  %18 = icmp ne ptr %17, null
  br i1 %18, label %19, label %29

19:                                               ; preds = %14
  invoke void @_ZNSt8optionalINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEC2IKPKcTnNSt9enable_ifIX7__and_vISt6__not_ISt7is_sameIS6_NSt9remove_cvINSt16remove_referenceIT_E4typeEE4typeEEESC_ISD_ISt10in_place_tSK_EESt16is_constructibleIS5_JSG_EESt14is_convertibleISG_S5_EEEbE4typeELb1EEEOSG_(ptr noundef nonnull align 8 dereferenceable(40) %0, ptr noundef nonnull align 8 dereferenceable(8) %10)
          to label %20 unwind label %25

20:                                               ; preds = %19
  store i32 1, ptr %11, align 4
  br label %30

21:                                               ; preds = %3
  %22 = landingpad { ptr, i32 }
          cleanup
  %23 = extractvalue { ptr, i32 } %22, 0
  store ptr %23, ptr %8, align 8
  %24 = extractvalue { ptr, i32 } %22, 1
  store i32 %24, ptr %9, align 4
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %7) #4
  call void @llvm.lifetime.end.p0(i64 1, ptr %7) #4
  br label %34

25:                                               ; preds = %19
  %26 = landingpad { ptr, i32 }
          cleanup
  %27 = extractvalue { ptr, i32 } %26, 0
  store ptr %27, ptr %8, align 8
  %28 = extractvalue { ptr, i32 } %26, 1
  store i32 %28, ptr %9, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #4
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %6) #4
  br label %34

29:                                               ; preds = %14
  store i32 0, ptr %11, align 4
  br label %30

30:                                               ; preds = %29, %20
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #4
  %31 = load i32, ptr %11, align 4
  switch i32 %31, label %33 [
    i32 0, label %32
  ]

32:                                               ; preds = %30
  call void @_ZNSt8optionalINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEC2Ev(ptr noundef nonnull align 8 dereferenceable(40) %0) #4
  store i32 1, ptr %11, align 4
  br label %33

33:                                               ; preds = %32, %30
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %6) #4
  call void @llvm.lifetime.end.p0(i64 32, ptr %6) #4
  ret void

34:                                               ; preds = %25, %21
  call void @llvm.lifetime.end.p0(i64 32, ptr %6) #4
  br label %35

35:                                               ; preds = %34
  %36 = load ptr, ptr %8, align 8
  %37 = load i32, ptr %9, align 4
  %38 = insertvalue { ptr, i32 } poison, ptr %36, 0
  %39 = insertvalue { ptr, i32 } %38, i32 %37, 1
  resume { ptr, i32 } %39
}

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2ISt17basic_string_viewIcS2_EvEERKT_RKS3_(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #0 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 align 2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: nounwind
declare ptr @getenv(ptr noundef) #3

; Function Attrs: mustprogress nounwind uwtable
declare noundef ptr @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE5c_strEv(ptr noundef nonnull align 8 dereferenceable(32)) #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt8optionalINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEC2IKPKcTnNSt9enable_ifIX7__and_vISt6__not_ISt7is_sameIS6_NSt9remove_cvINSt16remove_referenceIT_E4typeEE4typeEEESC_ISD_ISt10in_place_tSK_EESt16is_constructibleIS5_JSG_EESt14is_convertibleISG_S5_EEEbE4typeELb1EEEOSG_(ptr noundef nonnull align 8 dereferenceable(40), ptr noundef nonnull align 8 dereferenceable(8)) unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt8optionalINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEC2Ev(ptr noundef nonnull align 8 dereferenceable(40)) unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #2 align 2

attributes #0 = { mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { mustprogress nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #3 = { nounwind "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #4 = { nounwind }

!llvm.module.flags = !{!0, !1, !2, !3}
!llvm.ident = !{!4}

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{!"clang version 19.1.0 (git@github.com:llvm/llvm-project.git a4bf6cd7cfb1a1421ba92bca9d017b49936c55e4)"}
!5 = !{!6, !6, i64 0}
!6 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}


; Optimized IR (opt -passes='default<O3>'):
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

%"class.std::optional" = type { %"struct.std::_Optional_base" }
%"struct.std::_Optional_base" = type { %"struct.std::_Optional_payload" }
%"struct.std::_Optional_payload" = type { %"struct.std::_Optional_payload.base", [7 x i8] }
%"struct.std::_Optional_payload.base" = type { %"struct.std::_Optional_payload_base.base" }
%"struct.std::_Optional_payload_base.base" = type <{ %"union.std::_Optional_payload_base<std::__cxx11::basic_string<char>>::_Storage", i8 }>
%"union.std::_Optional_payload_base<std::__cxx11::basic_string<char>>::_Storage" = type { %"class.std::__cxx11::basic_string" }
%"class.std::__cxx11::basic_string" = type { %"struct.std::__cxx11::basic_string<char>::_Alloc_hider", i64, %union.anon }
%"struct.std::__cxx11::basic_string<char>::_Alloc_hider" = type { ptr }
%union.anon = type { i64, [8 x i8] }
%"class.std::basic_string_view" = type { i64, ptr }
%"class.std::allocator" = type { i8 }

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN8momentum9GetEnvVarB5cxx11ESt17basic_string_viewIcSt11char_traitsIcEE(ptr dead_on_unwind noalias writable sret(%"class.std::optional") align 8 %0, i64 %1, ptr %2) local_unnamed_addr #0 personality ptr @__gxx_personality_v0 {
  %4 = alloca %"class.std::basic_string_view", align 8
  %5 = alloca %"class.std::__cxx11::basic_string", align 8
  %6 = alloca %"class.std::allocator", align 1
  %7 = alloca ptr, align 8
  store i64 %1, ptr %4, align 8
  %8 = getelementptr inbounds i8, ptr %4, i64 8
  store ptr %2, ptr %8, align 8
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %5) #4
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %6) #4
  call void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %6) #4
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2ISt17basic_string_viewIcS2_EvEERKT_RKS3_(ptr noundef nonnull align 8 dereferenceable(32) %5, ptr noundef nonnull align 8 dereferenceable(16) %4, ptr noundef nonnull align 1 dereferenceable(1) %6)
          to label %9 unwind label %13

9:                                                ; preds = %3
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %6) #4
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %6) #4
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %7) #4
  %10 = call noundef ptr @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE5c_strEv(ptr noundef nonnull align 8 dereferenceable(32) %5) #4
  %11 = call ptr @getenv(ptr noundef %10) #4
  store ptr %11, ptr %7, align 8, !tbaa !5
  %.not = icmp eq ptr %11, null
  br i1 %.not, label %18, label %12

12:                                               ; preds = %9
  invoke void @_ZNSt8optionalINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEC2IKPKcTnNSt9enable_ifIX7__and_vISt6__not_ISt7is_sameIS6_NSt9remove_cvINSt16remove_referenceIT_E4typeEE4typeEEESC_ISD_ISt10in_place_tSK_EESt16is_constructibleIS5_JSG_EESt14is_convertibleISG_S5_EEEbE4typeELb1EEEOSG_(ptr noundef nonnull align 8 dereferenceable(40) %0, ptr noundef nonnull align 8 dereferenceable(8) %7)
          to label %17 unwind label %15

13:                                               ; preds = %3
  %14 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %6) #4
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %6) #4
  br label %20

15:                                               ; preds = %12
  %16 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %7) #4
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %5) #4
  br label %20

17:                                               ; preds = %12
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %7) #4
  br label %19

18:                                               ; preds = %9
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %7) #4
  call void @_ZNSt8optionalINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEC2Ev(ptr noundef nonnull align 8 dereferenceable(40) %0) #4
  br label %19

19:                                               ; preds = %17, %18
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %5) #4
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %5) #4
  ret void

20:                                               ; preds = %15, %13
  %.pn = phi { ptr, i32 } [ %16, %15 ], [ %14, %13 ]
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %5) #4
  resume { ptr, i32 } %.pn
}

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2ISt17basic_string_viewIcS2_EvEERKT_RKS3_(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #0 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 align 2

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: nofree nounwind memory(read)
declare noundef ptr @getenv(ptr nocapture noundef) local_unnamed_addr #3

; Function Attrs: mustprogress nounwind uwtable
declare noundef ptr @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE5c_strEv(ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt8optionalINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEC2IKPKcTnNSt9enable_ifIX7__and_vISt6__not_ISt7is_sameIS6_NSt9remove_cvINSt16remove_referenceIT_E4typeEE4typeEEESC_ISD_ISt10in_place_tSK_EESt16is_constructibleIS5_JSG_EESt14is_convertibleISG_S5_EEEbE4typeELb1EEEOSG_(ptr noundef nonnull align 8 dereferenceable(40), ptr noundef nonnull align 8 dereferenceable(8)) unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt8optionalINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEC2Ev(ptr noundef nonnull align 8 dereferenceable(40)) unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #2 align 2

attributes #0 = { mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #1 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { mustprogress nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #3 = { nofree nounwind memory(read) "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #4 = { nounwind }

!llvm.module.flags = !{!0, !1, !2, !3}
!llvm.ident = !{!4}

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{!"clang version 19.1.0 (git@github.com:llvm/llvm-project.git a4bf6cd7cfb1a1421ba92bca9d017b49936c55e4)"}
!5 = !{!6, !6, i64 0}
!6 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,SROAPass,SimplifyCFGPass