; LLVM IR from ritikbanger/Hacktoberfest2022-DSA :: 04. Arrays/Find common elements in three sorted arrays.ll (Z10findCommonPiS_S_iii)

; 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 }

@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@.str = external hidden unnamed_addr constant [2 x i8], align 1

; Function Attrs: mustprogress uwtable
define dso_local void @_Z10findCommonPiS_S_iii(ptr noundef %0, ptr noundef %1, ptr noundef %2, i32 noundef %3, i32 noundef %4, i32 noundef %5) #0 {
  %7 = alloca ptr, align 8
  %8 = alloca ptr, align 8
  %9 = alloca ptr, align 8
  %10 = alloca i32, align 4
  %11 = alloca i32, align 4
  %12 = alloca i32, align 4
  %13 = alloca i32, align 4
  %14 = alloca i32, align 4
  %15 = alloca i32, align 4
  store ptr %0, ptr %7, align 8, !tbaa !5
  store ptr %1, ptr %8, align 8, !tbaa !5
  store ptr %2, ptr %9, align 8, !tbaa !5
  store i32 %3, ptr %10, align 4, !tbaa !9
  store i32 %4, ptr %11, align 4, !tbaa !9
  store i32 %5, ptr %12, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %13) #4
  store i32 0, ptr %13, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %14) #4
  store i32 0, ptr %14, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %15) #4
  store i32 0, ptr %15, align 4, !tbaa !9
  br label %16

16:                                               ; preds = %103, %6
  %17 = load i32, ptr %13, align 4, !tbaa !9
  %18 = load i32, ptr %10, align 4, !tbaa !9
  %19 = icmp slt i32 %17, %18
  br i1 %19, label %20, label %28

20:                                               ; preds = %16
  %21 = load i32, ptr %14, align 4, !tbaa !9
  %22 = load i32, ptr %11, align 4, !tbaa !9
  %23 = icmp slt i32 %21, %22
  br i1 %23, label %24, label %28

24:                                               ; preds = %20
  %25 = load i32, ptr %15, align 4, !tbaa !9
  %26 = load i32, ptr %12, align 4, !tbaa !9
  %27 = icmp slt i32 %25, %26
  br label %28

28:                                               ; preds = %24, %20, %16
  %29 = phi i1 [ false, %20 ], [ false, %16 ], [ %27, %24 ]
  br i1 %29, label %30, label %104

30:                                               ; preds = %28
  %31 = load ptr, ptr %7, align 8, !tbaa !5
  %32 = load i32, ptr %13, align 4, !tbaa !9
  %33 = sext i32 %32 to i64
  %34 = getelementptr inbounds i32, ptr %31, i64 %33
  %35 = load i32, ptr %34, align 4, !tbaa !9
  %36 = load ptr, ptr %8, align 8, !tbaa !5
  %37 = load i32, ptr %14, align 4, !tbaa !9
  %38 = sext i32 %37 to i64
  %39 = getelementptr inbounds i32, ptr %36, i64 %38
  %40 = load i32, ptr %39, align 4, !tbaa !9
  %41 = icmp eq i32 %35, %40
  br i1 %41, label %42, label %68

42:                                               ; preds = %30
  %43 = load ptr, ptr %8, align 8, !tbaa !5
  %44 = load i32, ptr %14, align 4, !tbaa !9
  %45 = sext i32 %44 to i64
  %46 = getelementptr inbounds i32, ptr %43, i64 %45
  %47 = load i32, ptr %46, align 4, !tbaa !9
  %48 = load ptr, ptr %9, align 8, !tbaa !5
  %49 = load i32, ptr %15, align 4, !tbaa !9
  %50 = sext i32 %49 to i64
  %51 = getelementptr inbounds i32, ptr %48, i64 %50
  %52 = load i32, ptr %51, align 4, !tbaa !9
  %53 = icmp eq i32 %47, %52
  br i1 %53, label %54, label %68

54:                                               ; preds = %42
  %55 = load ptr, ptr %7, align 8, !tbaa !5
  %56 = load i32, ptr %13, align 4, !tbaa !9
  %57 = sext i32 %56 to i64
  %58 = getelementptr inbounds i32, ptr %55, i64 %57
  %59 = load i32, ptr %58, align 4, !tbaa !9
  %60 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %59)
  %61 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %60, ptr noundef @.str)
  %62 = load i32, ptr %13, align 4, !tbaa !9
  %63 = add nsw i32 %62, 1
  store i32 %63, ptr %13, align 4, !tbaa !9
  %64 = load i32, ptr %14, align 4, !tbaa !9
  %65 = add nsw i32 %64, 1
  store i32 %65, ptr %14, align 4, !tbaa !9
  %66 = load i32, ptr %15, align 4, !tbaa !9
  %67 = add nsw i32 %66, 1
  store i32 %67, ptr %15, align 4, !tbaa !9
  br label %103

68:                                               ; preds = %42, %30
  %69 = load ptr, ptr %7, align 8, !tbaa !5
  %70 = load i32, ptr %13, align 4, !tbaa !9
  %71 = sext i32 %70 to i64
  %72 = getelementptr inbounds i32, ptr %69, i64 %71
  %73 = load i32, ptr %72, align 4, !tbaa !9
  %74 = load ptr, ptr %8, align 8, !tbaa !5
  %75 = load i32, ptr %14, align 4, !tbaa !9
  %76 = sext i32 %75 to i64
  %77 = getelementptr inbounds i32, ptr %74, i64 %76
  %78 = load i32, ptr %77, align 4, !tbaa !9
  %79 = icmp slt i32 %73, %78
  br i1 %79, label %80, label %83

80:                                               ; preds = %68
  %81 = load i32, ptr %13, align 4, !tbaa !9
  %82 = add nsw i32 %81, 1
  store i32 %82, ptr %13, align 4, !tbaa !9
  br label %102

83:                                               ; preds = %68
  %84 = load ptr, ptr %8, align 8, !tbaa !5
  %85 = load i32, ptr %14, align 4, !tbaa !9
  %86 = sext i32 %85 to i64
  %87 = getelementptr inbounds i32, ptr %84, i64 %86
  %88 = load i32, ptr %87, align 4, !tbaa !9
  %89 = load ptr, ptr %9, align 8, !tbaa !5
  %90 = load i32, ptr %15, align 4, !tbaa !9
  %91 = sext i32 %90 to i64
  %92 = getelementptr inbounds i32, ptr %89, i64 %91
  %93 = load i32, ptr %92, align 4, !tbaa !9
  %94 = icmp slt i32 %88, %93
  br i1 %94, label %95, label %98

95:                                               ; preds = %83
  %96 = load i32, ptr %14, align 4, !tbaa !9
  %97 = add nsw i32 %96, 1
  store i32 %97, ptr %14, align 4, !tbaa !9
  br label %101

98:                                               ; preds = %83
  %99 = load i32, ptr %15, align 4, !tbaa !9
  %100 = add nsw i32 %99, 1
  store i32 %100, ptr %15, align 4, !tbaa !9
  br label %101

101:                                              ; preds = %98, %95
  br label %102

102:                                              ; preds = %101, %80
  br label %103

103:                                              ; preds = %102, %54
  br label %16, !llvm.loop !11

104:                                              ; preds = %28
  call void @llvm.lifetime.end.p0(i64 4, ptr %15) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %14) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %13) #4
  ret void
}

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.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

declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) #3

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #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 = { 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 = { "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"}
!9 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}


; 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 [2 x i8], align 1

; Function Attrs: mustprogress uwtable
define dso_local void @_Z10findCommonPiS_S_iii(ptr nocapture noundef readonly %0, ptr nocapture noundef readonly %1, ptr nocapture noundef readonly %2, i32 noundef %3, i32 noundef %4, i32 noundef %5) local_unnamed_addr #0 {
  %7 = icmp sgt i32 %3, 0
  %8 = icmp sgt i32 %4, 0
  %or.cond37 = and i1 %7, %8
  %9 = icmp sgt i32 %5, 0
  %or.cond3638 = and i1 %or.cond37, %9
  br i1 %or.cond3638, label %.lr.ph, label %.critedge

.lr.ph:                                           ; preds = %6, %41
  %.041 = phi i32 [ %.1, %41 ], [ 0, %6 ]
  %.02940 = phi i32 [ %.130, %41 ], [ 0, %6 ]
  %.03139 = phi i32 [ %.132, %41 ], [ 0, %6 ]
  %10 = sext i32 %.03139 to i64
  %11 = getelementptr inbounds i32, ptr %0, i64 %10
  %12 = load i32, ptr %11, align 4, !tbaa !5
  %13 = sext i32 %.02940 to i64
  %14 = getelementptr inbounds i32, ptr %1, i64 %13
  %15 = load i32, ptr %14, align 4, !tbaa !5
  %16 = icmp eq i32 %12, %15
  br i1 %16, label %17, label %28

17:                                               ; preds = %.lr.ph
  %18 = sext i32 %.041 to i64
  %19 = getelementptr inbounds i32, ptr %2, i64 %18
  %20 = load i32, ptr %19, align 4, !tbaa !5
  %21 = icmp eq i32 %12, %20
  br i1 %21, label %22, label %28

22:                                               ; preds = %17
  %23 = tail call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %12)
  %24 = tail call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %23, ptr noundef nonnull @.str)
  %25 = add nsw i32 %.03139, 1
  %26 = add nsw i32 %.02940, 1
  %27 = add nsw i32 %.041, 1
  br label %41

28:                                               ; preds = %17, %.lr.ph
  %29 = icmp slt i32 %12, %15
  br i1 %29, label %30, label %32

30:                                               ; preds = %28
  %31 = add nsw i32 %.03139, 1
  br label %41

32:                                               ; preds = %28
  %33 = sext i32 %.041 to i64
  %34 = getelementptr inbounds i32, ptr %2, i64 %33
  %35 = load i32, ptr %34, align 4, !tbaa !5
  %36 = icmp slt i32 %15, %35
  br i1 %36, label %37, label %39

37:                                               ; preds = %32
  %38 = add nsw i32 %.02940, 1
  br label %41

39:                                               ; preds = %32
  %40 = add nsw i32 %.041, 1
  br label %41

41:                                               ; preds = %30, %39, %37, %22
  %.132 = phi i32 [ %25, %22 ], [ %31, %30 ], [ %.03139, %37 ], [ %.03139, %39 ]
  %.130 = phi i32 [ %26, %22 ], [ %.02940, %30 ], [ %38, %37 ], [ %.02940, %39 ]
  %.1 = phi i32 [ %27, %22 ], [ %.041, %30 ], [ %.041, %37 ], [ %40, %39 ]
  %42 = icmp slt i32 %.132, %3
  %43 = icmp slt i32 %.130, %4
  %or.cond = select i1 %42, i1 %43, i1 false
  %44 = icmp slt i32 %.1, %5
  %or.cond36 = select i1 %or.cond, i1 %44, i1 false
  br i1 %or.cond36, label %.lr.ph, label %.critedge, !llvm.loop !9

.critedge:                                        ; preds = %41, %6
  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

declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) local_unnamed_addr #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 = { 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 #2 = { "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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: EarlyCSEPass,GVNPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass