; LLVM IR from alibaba/euler :: euler/common (env_posix)

; 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::function" = type { %"class.std::_Function_base", ptr }
%"class.std::_Function_base" = type { %"union.std::_Any_data", ptr }
%"union.std::_Any_data" = type { %"union.std::_Nocopy_types" }
%"union.std::_Nocopy_types" = type { { i64, i64 } }

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress uwtable
define dso_local noundef ptr @_ZN5euler8PosixEnv11StartThreadERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESt8functionIFvvEE(ptr noundef nonnull align 8 dereferenceable(8) %0, ptr noundef nonnull align 8 dereferenceable(32) %1, ptr noundef %2) unnamed_addr #0 align 2 personality ptr @__gxx_personality_v0 {
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca %"class.std::function", align 8
  %8 = alloca ptr, align 8
  %9 = alloca i32, align 4
  %10 = alloca i1, align 1
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  store ptr %2, ptr %6, align 8, !tbaa !5
  %11 = load ptr, ptr %4, align 8
  %12 = call noalias noundef nonnull ptr @_Znwm(i64 noundef 48) #4
  store i1 true, ptr %10, align 1
  %13 = load ptr, ptr %5, align 8, !tbaa !5
  invoke void @_ZNSt8functionIFvvEEC2ERKS1_(ptr noundef nonnull align 8 dereferenceable(32) %7, ptr noundef nonnull align 8 dereferenceable(32) %2)
          to label %14 unwind label %16

14:                                               ; preds = %3
  invoke void @_ZN5euler12_GLOBAL__N_19StdThreadC2ERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESt8functionIFvvEE(ptr noundef nonnull align 8 dereferenceable(48) %12, ptr noundef nonnull align 8 dereferenceable(32) %13, ptr noundef %7)
          to label %15 unwind label %20

15:                                               ; preds = %14
  store i1 false, ptr %10, align 1
  call void @_ZNSt14_Function_baseD2Ev(ptr noundef nonnull align 8 dereferenceable(32) %7) #5
  ret ptr %12

16:                                               ; preds = %3
  %17 = landingpad { ptr, i32 }
          cleanup
  %18 = extractvalue { ptr, i32 } %17, 0
  store ptr %18, ptr %8, align 8
  %19 = extractvalue { ptr, i32 } %17, 1
  store i32 %19, ptr %9, align 4
  br label %24

20:                                               ; preds = %14
  %21 = landingpad { ptr, i32 }
          cleanup
  %22 = extractvalue { ptr, i32 } %21, 0
  store ptr %22, ptr %8, align 8
  %23 = extractvalue { ptr, i32 } %21, 1
  store i32 %23, ptr %9, align 4
  call void @_ZNSt14_Function_baseD2Ev(ptr noundef nonnull align 8 dereferenceable(32) %7) #5
  br label %24

24:                                               ; preds = %20, %16
  %25 = load i1, ptr %10, align 1
  br i1 %25, label %26, label %27

26:                                               ; preds = %24
  call void @_ZdlPvm(ptr noundef %12, i64 noundef 48) #6
  br label %27

27:                                               ; preds = %26, %24
  br label %28

28:                                               ; preds = %27
  %29 = load ptr, ptr %8, align 8
  %30 = load i32, ptr %9, align 4
  %31 = insertvalue { ptr, i32 } poison, ptr %29, 0
  %32 = insertvalue { ptr, i32 } %31, i32 %30, 1
  resume { ptr, i32 } %32
}

; Function Attrs: nobuiltin allocsize(0)
declare noundef nonnull ptr @_Znwm(i64 noundef) #1

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt8functionIFvvEEC2ERKS1_(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
declare hidden void @_ZN5euler12_GLOBAL__N_19StdThreadC2ERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESt8functionIFvvEE(ptr noundef nonnull align 8 dereferenceable(48), ptr noundef nonnull align 8 dereferenceable(32), ptr noundef) unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt14_Function_baseD2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #2 align 2

; Function Attrs: nobuiltin nounwind
declare void @_ZdlPvm(ptr noundef, i64 noundef) #3

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 = { nobuiltin allocsize(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 #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 = { nobuiltin 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 = { builtin allocsize(0) }
attributes #5 = { nounwind }
attributes #6 = { builtin 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::function" = type { %"class.std::_Function_base", ptr }
%"class.std::_Function_base" = type { %"union.std::_Any_data", ptr }
%"union.std::_Any_data" = type { %"union.std::_Nocopy_types" }
%"union.std::_Nocopy_types" = type { { i64, i64 } }

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress uwtable
define dso_local noundef nonnull ptr @_ZN5euler8PosixEnv11StartThreadERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESt8functionIFvvEE(ptr nocapture noundef nonnull readnone align 8 dereferenceable(8) %0, ptr noundef nonnull align 8 dereferenceable(32) %1, ptr noundef %2) unnamed_addr #0 align 2 personality ptr @__gxx_personality_v0 {
  %4 = alloca %"class.std::function", align 8
  %5 = tail call noalias noundef nonnull dereferenceable(48) ptr @_Znwm(i64 noundef 48) #4
  invoke void @_ZNSt8functionIFvvEEC2ERKS1_(ptr noundef nonnull align 8 dereferenceable(32) %4, ptr noundef nonnull align 8 dereferenceable(32) %2)
          to label %6 unwind label %8

6:                                                ; preds = %3
  invoke void @_ZN5euler12_GLOBAL__N_19StdThreadC2ERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESt8functionIFvvEE(ptr noundef nonnull align 8 dereferenceable(48) %5, ptr noundef nonnull align 8 dereferenceable(32) %1, ptr noundef nonnull %4)
          to label %7 unwind label %10

7:                                                ; preds = %6
  call void @_ZNSt14_Function_baseD2Ev(ptr noundef nonnull align 8 dereferenceable(32) %4) #5
  ret ptr %5

8:                                                ; preds = %3
  %9 = landingpad { ptr, i32 }
          cleanup
  br label %12

10:                                               ; preds = %6
  %11 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt14_Function_baseD2Ev(ptr noundef nonnull align 8 dereferenceable(32) %4) #5
  br label %12

12:                                               ; preds = %8, %10
  %.pn = phi { ptr, i32 } [ %11, %10 ], [ %9, %8 ]
  call void @_ZdlPvm(ptr noundef nonnull %5, i64 noundef 48) #6
  resume { ptr, i32 } %.pn
}

; Function Attrs: nobuiltin allocsize(0)
declare noundef nonnull ptr @_Znwm(i64 noundef) local_unnamed_addr #1

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt8functionIFvvEEC2ERKS1_(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
declare hidden void @_ZN5euler12_GLOBAL__N_19StdThreadC2ERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESt8functionIFvvEE(ptr noundef nonnull align 8 dereferenceable(48), ptr noundef nonnull align 8 dereferenceable(32), ptr noundef) unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt14_Function_baseD2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #2 align 2

; Function Attrs: nobuiltin nounwind
declare void @_ZdlPvm(ptr noundef, i64 noundef) local_unnamed_addr #3

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 = { nobuiltin allocsize(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 #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 = { nobuiltin 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 = { builtin allocsize(0) }
attributes #5 = { nounwind }
attributes #6 = { builtin 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)"}


; Effective O3 passes: CorrelatedValuePropagationPass,GlobalOptPass,IPSCCPPass,InstCombinePass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass