; LLVM IR from MostafaTwfiq/C-DataStructures-And-Algorithms :: Algorithms/ArraysAlg/Sources (ArraysAlg)

; 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"

@stderr = external global ptr, align 8
@.str = external hidden unnamed_addr constant [31 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [13 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [42 x i8], align 1
@.str.4 = external hidden unnamed_addr constant [13 x i8], align 1
@.str.5 = external hidden unnamed_addr constant [13 x i8], align 1
@.str.21 = external hidden unnamed_addr constant [25 x i8], align 1
@.str.24 = external hidden unnamed_addr constant [27 x i8], align 1

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: nounwind allocsize(0)
declare noalias ptr @malloc(i64 noundef) #1

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: nounwind
declare i32 @fprintf(ptr noundef, ptr noundef, ...) #2

; Function Attrs: noreturn nounwind
declare void @exit(i32 noundef) #3

; Function Attrs: nounwind uwtable
define dso_local ptr @arrCopyC(ptr noundef %0, i32 noundef %1, i32 noundef %2, ptr noundef %3) #4 {
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  %8 = alloca ptr, align 8
  %9 = alloca ptr, align 8
  %10 = alloca ptr, align 8
  %11 = alloca i32, align 4
  store ptr %0, ptr %5, align 8, !tbaa !5
  store i32 %1, ptr %6, align 4, !tbaa !9
  store i32 %2, ptr %7, align 4, !tbaa !9
  store ptr %3, ptr %8, align 8, !tbaa !5
  %12 = load ptr, ptr %5, align 8, !tbaa !5
  %13 = icmp eq ptr %12, null
  br i1 %13, label %14, label %17

14:                                               ; preds = %4
  %15 = load ptr, ptr @stderr, align 8, !tbaa !5
  %16 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %15, ptr noundef @.str, ptr noundef @.str.1, ptr noundef @.str.24) #5
  call void @exit(i32 noundef -83386157) #6
  unreachable

17:                                               ; preds = %4
  %18 = load ptr, ptr %8, align 8, !tbaa !5
  %19 = icmp eq ptr %18, null
  br i1 %19, label %20, label %23

20:                                               ; preds = %17
  %21 = load ptr, ptr @stderr, align 8, !tbaa !5
  %22 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %21, ptr noundef @.str.3, ptr noundef @.str.21, ptr noundef @.str.24) #5
  call void @exit(i32 noundef -83384987) #6
  unreachable

23:                                               ; preds = %17
  %24 = load i32, ptr %6, align 4, !tbaa !9
  %25 = icmp slt i32 %24, 0
  br i1 %25, label %26, label %29

26:                                               ; preds = %23
  %27 = load ptr, ptr @stderr, align 8, !tbaa !5
  %28 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %27, ptr noundef @.str.3, ptr noundef @.str.4, ptr noundef @.str.24) #5
  call void @exit(i32 noundef -83384987) #6
  unreachable

29:                                               ; preds = %23
  %30 = load i32, ptr %7, align 4, !tbaa !9
  %31 = icmp sle i32 %30, 0
  br i1 %31, label %32, label %35

32:                                               ; preds = %29
  %33 = load ptr, ptr @stderr, align 8, !tbaa !5
  %34 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %33, ptr noundef @.str.3, ptr noundef @.str.5, ptr noundef @.str.24) #5
  call void @exit(i32 noundef -83384987) #6
  unreachable

35:                                               ; preds = %29
  br label %36

36:                                               ; preds = %35
  br label %37

37:                                               ; preds = %36
  br label %38

38:                                               ; preds = %37
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #5
  %39 = load ptr, ptr %5, align 8, !tbaa !5
  store ptr %39, ptr %9, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %10) #5
  %40 = load i32, ptr %7, align 4, !tbaa !9
  %41 = load i32, ptr %6, align 4, !tbaa !9
  %42 = mul nsw i32 %40, %41
  %43 = sext i32 %42 to i64
  %44 = call noalias ptr @malloc(i64 noundef %43) #7
  store ptr %44, ptr %10, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %11) #5
  store i32 0, ptr %11, align 4, !tbaa !9
  br label %45

45:                                               ; preds = %64, %38
  %46 = load i32, ptr %11, align 4, !tbaa !9
  %47 = load i32, ptr %6, align 4, !tbaa !9
  %48 = icmp slt i32 %46, %47
  br i1 %48, label %50, label %49

49:                                               ; preds = %45
  call void @llvm.lifetime.end.p0(i64 4, ptr %11) #5
  br label %67

50:                                               ; preds = %45
  %51 = load ptr, ptr %8, align 8, !tbaa !5
  %52 = load ptr, ptr %10, align 8, !tbaa !5
  %53 = load i32, ptr %11, align 4, !tbaa !9
  %54 = load i32, ptr %7, align 4, !tbaa !9
  %55 = mul nsw i32 %53, %54
  %56 = sext i32 %55 to i64
  %57 = getelementptr inbounds i8, ptr %52, i64 %56
  %58 = load ptr, ptr %9, align 8, !tbaa !5
  %59 = load i32, ptr %11, align 4, !tbaa !9
  %60 = load i32, ptr %7, align 4, !tbaa !9
  %61 = mul nsw i32 %59, %60
  %62 = sext i32 %61 to i64
  %63 = getelementptr inbounds i8, ptr %58, i64 %62
  call void %51(ptr noundef %57, ptr noundef %63)
  br label %64

64:                                               ; preds = %50
  %65 = load i32, ptr %11, align 4, !tbaa !9
  %66 = add nsw i32 %65, 1
  store i32 %66, ptr %11, align 4, !tbaa !9
  br label %45, !llvm.loop !11

67:                                               ; preds = %49
  %68 = load ptr, ptr %10, align 8, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #5
  ret ptr %68
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { nounwind 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 = { 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 #3 = { noreturn 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 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 }
attributes #6 = { noreturn nounwind }
attributes #7 = { nounwind allocsize(0) }

!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/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"

@stderr = external local_unnamed_addr global ptr, align 8
@.str = external hidden unnamed_addr constant [31 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [13 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [42 x i8], align 1
@.str.4 = external hidden unnamed_addr constant [13 x i8], align 1
@.str.5 = external hidden unnamed_addr constant [13 x i8], align 1
@.str.21 = external hidden unnamed_addr constant [25 x i8], align 1
@.str.24 = external hidden unnamed_addr constant [27 x i8], align 1

; Function Attrs: mustprogress nofree nounwind willreturn allockind("alloc,uninitialized") allocsize(0) memory(inaccessiblemem: readwrite)
declare noalias noundef ptr @malloc(i64 noundef) local_unnamed_addr #0

; Function Attrs: nofree nounwind
declare noundef i32 @fprintf(ptr nocapture noundef, ptr nocapture noundef readonly, ...) local_unnamed_addr #1

; Function Attrs: noreturn nounwind
declare void @exit(i32 noundef) local_unnamed_addr #2

; Function Attrs: nounwind uwtable
define dso_local noundef ptr @arrCopyC(ptr noundef %0, i32 noundef %1, i32 noundef %2, ptr noundef readonly %3) local_unnamed_addr #3 {
  %5 = icmp eq ptr %0, null
  br i1 %5, label %6, label %9

6:                                                ; preds = %4
  %7 = load ptr, ptr @stderr, align 8, !tbaa !5
  %8 = tail call i32 (ptr, ptr, ...) @fprintf(ptr noundef %7, ptr noundef nonnull @.str, ptr noundef nonnull @.str.1, ptr noundef nonnull @.str.24) #4
  tail call void @exit(i32 noundef -83386157) #5
  unreachable

9:                                                ; preds = %4
  %10 = icmp eq ptr %3, null
  br i1 %10, label %11, label %14

11:                                               ; preds = %9
  %12 = load ptr, ptr @stderr, align 8, !tbaa !5
  %13 = tail call i32 (ptr, ptr, ...) @fprintf(ptr noundef %12, ptr noundef nonnull @.str.3, ptr noundef nonnull @.str.21, ptr noundef nonnull @.str.24) #4
  tail call void @exit(i32 noundef -83384987) #5
  unreachable

14:                                               ; preds = %9
  %15 = icmp slt i32 %1, 0
  br i1 %15, label %16, label %19

16:                                               ; preds = %14
  %17 = load ptr, ptr @stderr, align 8, !tbaa !5
  %18 = tail call i32 (ptr, ptr, ...) @fprintf(ptr noundef %17, ptr noundef nonnull @.str.3, ptr noundef nonnull @.str.4, ptr noundef nonnull @.str.24) #4
  tail call void @exit(i32 noundef -83384987) #5
  unreachable

19:                                               ; preds = %14
  %20 = icmp slt i32 %2, 1
  br i1 %20, label %21, label %24

21:                                               ; preds = %19
  %22 = load ptr, ptr @stderr, align 8, !tbaa !5
  %23 = tail call i32 (ptr, ptr, ...) @fprintf(ptr noundef %22, ptr noundef nonnull @.str.3, ptr noundef nonnull @.str.5, ptr noundef nonnull @.str.24) #4
  tail call void @exit(i32 noundef -83384987) #5
  unreachable

24:                                               ; preds = %19
  %25 = mul nuw nsw i32 %2, %1
  %26 = zext nneg i32 %25 to i64
  %27 = tail call noalias ptr @malloc(i64 noundef %26) #6
  %.not = icmp eq i32 %1, 0
  br i1 %.not, label %._crit_edge, label %.lr.ph.preheader

.lr.ph.preheader:                                 ; preds = %24
  %28 = zext nneg i32 %2 to i64
  %wide.trip.count = zext nneg i32 %1 to i64
  br label %.lr.ph

._crit_edge:                                      ; preds = %.lr.ph, %24
  ret ptr %27

.lr.ph:                                           ; preds = %.lr.ph.preheader, %.lr.ph
  %indvars.iv = phi i64 [ 0, %.lr.ph.preheader ], [ %indvars.iv.next, %.lr.ph ]
  %29 = mul nuw nsw i64 %indvars.iv, %28
  %30 = getelementptr inbounds i8, ptr %27, i64 %29
  %31 = getelementptr inbounds i8, ptr %0, i64 %29
  tail call void %3(ptr noundef %30, ptr noundef nonnull %31) #7
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %exitcond.not = icmp eq i64 %indvars.iv.next, %wide.trip.count
  br i1 %exitcond.not, label %._crit_edge, label %.lr.ph, !llvm.loop !9
}

attributes #0 = { mustprogress nofree nounwind willreturn allockind("alloc,uninitialized") allocsize(0) memory(inaccessiblemem: readwrite) "alloc-family"="malloc" "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 = { nofree 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 #2 = { noreturn 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 #3 = { 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 #4 = { cold nounwind }
attributes #5 = { noreturn nounwind }
attributes #6 = { nounwind allocsize(0) }
attributes #7 = { 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/C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}


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