; LLVM IR from ritikbanger/Hacktoberfest2022-DSA :: 04. Arrays/insert and delete an element of array.ll (ZN8arrayadt8setvalueEii)

; 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 }
%class.arrayadt = type { i32, i32, ptr }

@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@.str = external hidden unnamed_addr constant [14 x i8], align 1

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN8arrayadt8setvalueEii(ptr noundef nonnull align 8 dereferenceable(16) %0, i32 noundef %1, i32 noundef %2) #0 align 2 {
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  store ptr %0, ptr %4, align 8, !tbaa !5
  store i32 %1, ptr %5, align 4, !tbaa !9
  store i32 %2, ptr %6, align 4, !tbaa !9
  %7 = load ptr, ptr %4, align 8
  %8 = load i32, ptr %5, align 4, !tbaa !9
  %9 = icmp slt i32 %8, 0
  br i1 %9, label %15, label %10

10:                                               ; preds = %3
  %11 = load i32, ptr %5, align 4, !tbaa !9
  %12 = getelementptr inbounds %class.arrayadt, ptr %7, i32 0, i32 0
  %13 = load i32, ptr %12, align 8, !tbaa !11
  %14 = icmp sgt i32 %11, %13
  br i1 %14, label %15, label %17

15:                                               ; preds = %10, %3
  %16 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef @.str)
  br label %36

17:                                               ; preds = %10
  %18 = load i32, ptr %5, align 4, !tbaa !9
  %19 = getelementptr inbounds %class.arrayadt, ptr %7, i32 0, i32 0
  %20 = load i32, ptr %19, align 8, !tbaa !11
  %21 = icmp slt i32 %18, %20
  br i1 %21, label %22, label %35

22:                                               ; preds = %17
  %23 = load i32, ptr %5, align 4, !tbaa !9
  %24 = icmp sge i32 %23, 0
  br i1 %24, label %25, label %35

25:                                               ; preds = %22
  %26 = load i32, ptr %6, align 4, !tbaa !9
  %27 = getelementptr inbounds %class.arrayadt, ptr %7, i32 0, i32 2
  %28 = load ptr, ptr %27, align 8, !tbaa !13
  %29 = load i32, ptr %5, align 4, !tbaa !9
  %30 = sext i32 %29 to i64
  %31 = getelementptr inbounds i32, ptr %28, i64 %30
  store i32 %26, ptr %31, align 4, !tbaa !9
  %32 = getelementptr inbounds %class.arrayadt, ptr %7, i32 0, i32 1
  %33 = load i32, ptr %32, align 4, !tbaa !14
  %34 = add nsw i32 %33, 1
  store i32 %34, ptr %32, align 4, !tbaa !14
  br label %35

35:                                               ; preds = %25, %22, %17
  br label %36

36:                                               ; preds = %35, %15
  ret void
}

; 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) #1

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 = { 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" }

!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"}
!9 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = !{!12, !10, i64 0}
!12 = !{!"_ZTS8arrayadt", !10, i64 0, !10, i64 4, !6, i64 8}
!13 = !{!12, !6, i64 8}
!14 = !{!12, !10, i64 4}


; 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 }

@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@.str = external hidden unnamed_addr constant [14 x i8], align 1

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN8arrayadt8setvalueEii(ptr nocapture noundef nonnull align 8 dereferenceable(16) %0, i32 noundef %1, i32 noundef %2) local_unnamed_addr #0 align 2 {
  %4 = icmp slt i32 %1, 0
  br i1 %4, label %8, label %5

5:                                                ; preds = %3
  %6 = load i32, ptr %0, align 8, !tbaa !5
  %7 = icmp slt i32 %6, %1
  br i1 %7, label %8, label %10

8:                                                ; preds = %5, %3
  %9 = 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)
  br label %20

10:                                               ; preds = %5
  %11 = icmp ugt i32 %6, %1
  br i1 %11, label %12, label %20

12:                                               ; preds = %10
  %13 = getelementptr inbounds i8, ptr %0, i64 8
  %14 = load ptr, ptr %13, align 8, !tbaa !11
  %15 = zext nneg i32 %1 to i64
  %16 = getelementptr inbounds i32, ptr %14, i64 %15
  store i32 %2, ptr %16, align 4, !tbaa !12
  %17 = getelementptr inbounds i8, ptr %0, i64 4
  %18 = load i32, ptr %17, align 4, !tbaa !13
  %19 = add nsw i32 %18, 1
  store i32 %19, ptr %17, align 4, !tbaa !13
  br label %20

20:                                               ; preds = %10, %12, %8
  ret void
}

; 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 #1

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 = { 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" }

!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, !7, i64 0}
!6 = !{!"_ZTS8arrayadt", !7, i64 0, !7, i64 4, !10, i64 8}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!"any pointer", !8, i64 0}
!11 = !{!6, !10, i64 8}
!12 = !{!7, !7, i64 0}
!13 = !{!6, !7, i64 4}


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