; LLVM IR from TheAlgorithms/C-Plus-Plus :: sorting (bogo_sort)

; 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::basic_ostream" = type { ptr, %"class.std::basic_ios" }
%"class.std::basic_ios" = type { %"class.std::ios_base", ptr, i8, i8, ptr, ptr, ptr, ptr }
%"class.std::ios_base" = type { ptr, i64, i64, i32, i32, i32, ptr, %"struct.std::ios_base::_Words", [8 x %"struct.std::ios_base::_Words"], i32, ptr, %"class.std::locale" }
%"struct.std::ios_base::_Words" = type { ptr, i64 }
%"class.std::locale" = type { ptr }
%"struct.std::array" = type { [5 x i32] }

@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@.str = external hidden unnamed_addr constant [18 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [16 x i8], align 1
@__const.main.arr = external hidden unnamed_addr constant %"struct.std::array", align 4

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z4testv() #0

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

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

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) #2

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z10show_arrayIiLm5EEvRKSt5arrayIT_XT0_EE(ptr noundef nonnull align 4 dereferenceable(20)) #0

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN7sorting19randomized_bogosortIiLm5EEESt5arrayIT_XT0_EES3_(ptr dead_on_unwind noalias writable sret(%"struct.std::array") align 4, ptr noundef byval(%"struct.std::array") align 8) #0

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #3

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() #4 {
  %1 = alloca i32, align 4
  %2 = alloca %"struct.std::array", align 4
  %3 = alloca %"struct.std::array", align 4
  %4 = alloca %"struct.std::array", align 8
  store i32 0, ptr %1, align 4
  call void @_Z4testv()
  call void @llvm.lifetime.start.p0(i64 20, ptr %2) #5
  call void @llvm.memcpy.p0.p0.i64(ptr align 4 %2, ptr align 4 @__const.main.arr, i64 20, i1 false)
  %5 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef @.str)
  call void @_Z10show_arrayIiLm5EEvRKSt5arrayIT_XT0_EE(ptr noundef nonnull align 4 dereferenceable(20) %2)
  call void @llvm.lifetime.start.p0(i64 20, ptr %3) #5
  call void @llvm.memcpy.p0.p0.i64(ptr align 4 %4, ptr align 4 %2, i64 20, i1 false), !tbaa.struct !5
  call void @_ZN7sorting19randomized_bogosortIiLm5EEESt5arrayIT_XT0_EES3_(ptr dead_on_unwind writable sret(%"struct.std::array") align 4 %3, ptr noundef byval(%"struct.std::array") align 8 %4)
  call void @llvm.memcpy.p0.p0.i64(ptr align 4 %2, ptr align 4 %3, i64 20, i1 false), !tbaa.struct !5
  call void @llvm.lifetime.end.p0(i64 20, ptr %3) #5
  %6 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef @.str.1)
  call void @_Z10show_arrayIiLm5EEvRKSt5arrayIT_XT0_EE(ptr noundef nonnull align 4 dereferenceable(20) %2)
  call void @llvm.lifetime.end.p0(i64 20, ptr %2) #5
  ret i32 0
}

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 = { inlinehint 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 #3 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #4 = { mustprogress norecurse 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 #5 = { 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 = !{i64 0, i64 20, !6}
!6 = !{!7, !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::basic_ostream" = type { ptr, %"class.std::basic_ios" }
%"class.std::basic_ios" = type { %"class.std::ios_base", ptr, i8, i8, ptr, ptr, ptr, ptr }
%"class.std::ios_base" = type { ptr, i64, i64, i32, i32, i32, ptr, %"struct.std::ios_base::_Words", [8 x %"struct.std::ios_base::_Words"], i32, ptr, %"class.std::locale" }
%"struct.std::ios_base::_Words" = type { ptr, i64 }
%"class.std::locale" = type { ptr }
%"struct.std::array" = type { [5 x i32] }

@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@.str = external hidden unnamed_addr constant [18 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [16 x i8], align 1
@__const.main.arr = external hidden unnamed_addr constant %"struct.std::array", align 4

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z4testv() local_unnamed_addr #0

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

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) local_unnamed_addr #2

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z10show_arrayIiLm5EEvRKSt5arrayIT_XT0_EE(ptr noundef nonnull align 4 dereferenceable(20)) local_unnamed_addr #0

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN7sorting19randomized_bogosortIiLm5EEESt5arrayIT_XT0_EES3_(ptr dead_on_unwind noalias writable sret(%"struct.std::array") align 4, ptr noundef byval(%"struct.std::array") align 8) local_unnamed_addr #0

; Function Attrs: mustprogress nocallback nofree nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #3

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() local_unnamed_addr #4 {
  %1 = alloca %"struct.std::array", align 8
  %2 = alloca %"struct.std::array", align 4
  tail call void @_Z4testv()
  call void @llvm.lifetime.start.p0(i64 20, ptr nonnull %1) #5
  call void @llvm.memcpy.p0.p0.i64(ptr noundef nonnull align 8 dereferenceable(20) %1, ptr noundef nonnull align 4 dereferenceable(20) @__const.main.arr, i64 20, i1 false)
  %3 = tail call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef nonnull @.str)
  call void @_Z10show_arrayIiLm5EEvRKSt5arrayIT_XT0_EE(ptr noundef nonnull align 4 dereferenceable(20) %1)
  call void @llvm.lifetime.start.p0(i64 20, ptr nonnull %2) #5
  call void @_ZN7sorting19randomized_bogosortIiLm5EEESt5arrayIT_XT0_EES3_(ptr dead_on_unwind nonnull writable sret(%"struct.std::array") align 4 %2, ptr noundef nonnull byval(%"struct.std::array") align 8 %1)
  call void @llvm.memcpy.p0.p0.i64(ptr noundef nonnull align 8 dereferenceable(20) %1, ptr noundef nonnull align 4 dereferenceable(20) %2, i64 20, i1 false), !tbaa.struct !5
  call void @llvm.lifetime.end.p0(i64 20, ptr nonnull %2) #5
  %4 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef nonnull @.str.1)
  call void @_Z10show_arrayIiLm5EEvRKSt5arrayIT_XT0_EE(ptr noundef nonnull align 4 dereferenceable(20) %1)
  call void @llvm.lifetime.end.p0(i64 20, ptr nonnull %1) #5
  ret i32 0
}

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 = { inlinehint 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 #3 = { mustprogress nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #4 = { mustprogress norecurse 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 #5 = { 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 = !{i64 0, i64 20, !6}
!6 = !{!7, !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}


; Effective O3 passes: DSEPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,MemCpyOptPass,SROAPass,TailCallElimPass