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

; 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.2 = external hidden unnamed_addr constant [14 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [42 x i8], align 1
@.str.4 = external hidden unnamed_addr constant [14 x i8], align 1
@.str.5 = external hidden unnamed_addr constant [28 x i8], align 1
@.str.6 = external hidden unnamed_addr constant [13 x i8], align 1
@.str.7 = external hidden unnamed_addr constant [13 x i8], align 1

; Function Attrs: nounwind uwtable
define dso_local i32 @binarySearchI(ptr noundef %0, ptr noundef %1, i32 noundef %2, i32 noundef %3, ptr noundef %4) #0 {
  %6 = alloca i32, align 4
  %7 = alloca ptr, align 8
  %8 = alloca ptr, align 8
  %9 = alloca i32, align 4
  %10 = alloca i32, align 4
  %11 = alloca ptr, align 8
  %12 = alloca ptr, align 8
  %13 = alloca i32, align 4
  %14 = alloca i32, align 4
  %15 = alloca i32, align 4
  %16 = alloca i32, align 4
  store ptr %0, ptr %7, align 8, !tbaa !5
  store ptr %1, ptr %8, align 8, !tbaa !5
  store i32 %2, ptr %9, align 4, !tbaa !9
  store i32 %3, ptr %10, align 4, !tbaa !9
  store ptr %4, ptr %11, align 8, !tbaa !5
  %17 = load ptr, ptr %7, align 8, !tbaa !5
  %18 = icmp eq ptr %17, null
  br i1 %18, label %19, label %22

19:                                               ; preds = %5
  %20 = load ptr, ptr @stderr, align 8, !tbaa !5
  %21 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %20, ptr noundef @.str, ptr noundef @.str.1, ptr noundef @.str.2) #4
  call void @exit(i32 noundef -83386157) #5
  unreachable

22:                                               ; preds = %5
  %23 = load ptr, ptr %8, align 8, !tbaa !5
  %24 = icmp eq ptr %23, null
  br i1 %24, label %25, label %28

25:                                               ; preds = %22
  %26 = load ptr, ptr @stderr, align 8, !tbaa !5
  %27 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %26, ptr noundef @.str.3, ptr noundef @.str.4, ptr noundef @.str.2) #4
  call void @exit(i32 noundef -83384987) #5
  unreachable

28:                                               ; preds = %22
  %29 = load ptr, ptr %11, align 8, !tbaa !5
  %30 = icmp eq ptr %29, null
  br i1 %30, label %31, label %34

31:                                               ; preds = %28
  %32 = load ptr, ptr @stderr, align 8, !tbaa !5
  %33 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %32, ptr noundef @.str.3, ptr noundef @.str.5, ptr noundef @.str.2) #4
  call void @exit(i32 noundef -83384987) #5
  unreachable

34:                                               ; preds = %28
  %35 = load i32, ptr %9, align 4, !tbaa !9
  %36 = icmp slt i32 %35, 0
  br i1 %36, label %37, label %40

37:                                               ; preds = %34
  %38 = load ptr, ptr @stderr, align 8, !tbaa !5
  %39 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %38, ptr noundef @.str.3, ptr noundef @.str.6, ptr noundef @.str.2) #4
  call void @exit(i32 noundef -83384987) #5
  unreachable

40:                                               ; preds = %34
  %41 = load i32, ptr %10, align 4, !tbaa !9
  %42 = icmp sle i32 %41, 0
  br i1 %42, label %43, label %46

43:                                               ; preds = %40
  %44 = load ptr, ptr @stderr, align 8, !tbaa !5
  %45 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %44, ptr noundef @.str.3, ptr noundef @.str.7, ptr noundef @.str.2) #4
  call void @exit(i32 noundef -83384987) #5
  unreachable

46:                                               ; preds = %40
  br label %47

47:                                               ; preds = %46
  br label %48

48:                                               ; preds = %47
  br label %49

49:                                               ; preds = %48
  br label %50

50:                                               ; preds = %49
  call void @llvm.lifetime.start.p0(i64 8, ptr %12) #4
  %51 = load ptr, ptr %7, align 8, !tbaa !5
  store ptr %51, ptr %12, align 8, !tbaa !5
  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
  %52 = load i32, ptr %9, align 4, !tbaa !9
  %53 = sub nsw i32 %52, 1
  store i32 %53, ptr %14, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %15) #4
  br label %54

54:                                               ; preds = %93, %50
  %55 = load i32, ptr %13, align 4, !tbaa !9
  %56 = load i32, ptr %14, align 4, !tbaa !9
  %57 = icmp sle i32 %55, %56
  br i1 %57, label %58, label %94

58:                                               ; preds = %54
  %59 = load i32, ptr %13, align 4, !tbaa !9
  %60 = load i32, ptr %14, align 4, !tbaa !9
  %61 = add nsw i32 %59, %60
  %62 = sdiv i32 %61, 2
  store i32 %62, ptr %15, align 4, !tbaa !9
  %63 = load ptr, ptr %11, align 8, !tbaa !5
  %64 = load ptr, ptr %8, align 8, !tbaa !5
  %65 = load ptr, ptr %12, align 8, !tbaa !5
  %66 = load i32, ptr %15, align 4, !tbaa !9
  %67 = load i32, ptr %10, align 4, !tbaa !9
  %68 = mul nsw i32 %66, %67
  %69 = sext i32 %68 to i64
  %70 = getelementptr inbounds i8, ptr %65, i64 %69
  %71 = call i32 %63(ptr noundef %64, ptr noundef %70)
  %72 = icmp eq i32 %71, 0
  br i1 %72, label %73, label %75

73:                                               ; preds = %58
  %74 = load i32, ptr %15, align 4, !tbaa !9
  store i32 %74, ptr %6, align 4
  store i32 1, ptr %16, align 4
  br label %95

75:                                               ; preds = %58
  %76 = load ptr, ptr %11, align 8, !tbaa !5
  %77 = load ptr, ptr %8, align 8, !tbaa !5
  %78 = load ptr, ptr %12, align 8, !tbaa !5
  %79 = load i32, ptr %15, align 4, !tbaa !9
  %80 = load i32, ptr %10, align 4, !tbaa !9
  %81 = mul nsw i32 %79, %80
  %82 = sext i32 %81 to i64
  %83 = getelementptr inbounds i8, ptr %78, i64 %82
  %84 = call i32 %76(ptr noundef %77, ptr noundef %83)
  %85 = icmp slt i32 %84, 0
  br i1 %85, label %86, label %89

86:                                               ; preds = %75
  %87 = load i32, ptr %15, align 4, !tbaa !9
  %88 = sub nsw i32 %87, 1
  store i32 %88, ptr %14, align 4, !tbaa !9
  br label %92

89:                                               ; preds = %75
  %90 = load i32, ptr %15, align 4, !tbaa !9
  %91 = add nsw i32 %90, 1
  store i32 %91, ptr %13, align 4, !tbaa !9
  br label %92

92:                                               ; preds = %89, %86
  br label %93

93:                                               ; preds = %92
  br label %54, !llvm.loop !11

94:                                               ; preds = %54
  store i32 -1, ptr %6, align 4
  store i32 1, ptr %16, align 4
  br label %95

95:                                               ; preds = %94, %73
  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
  call void @llvm.lifetime.end.p0(i64 8, ptr %12) #4
  %96 = load i32, ptr %6, align 4
  ret i32 %96
}

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

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

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #3

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #3

attributes #0 = { 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 #1 = { 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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #4 = { nounwind }
attributes #5 = { noreturn 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 = !{!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.2 = external hidden unnamed_addr constant [14 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [42 x i8], align 1
@.str.4 = external hidden unnamed_addr constant [14 x i8], align 1
@.str.5 = external hidden unnamed_addr constant [28 x i8], align 1
@.str.6 = external hidden unnamed_addr constant [13 x i8], align 1
@.str.7 = external hidden unnamed_addr constant [13 x i8], align 1

; Function Attrs: nounwind uwtable
define dso_local range(i32 -1, 1073741824) i32 @binarySearchI(ptr noundef %0, ptr noundef %1, i32 noundef %2, i32 noundef %3, ptr noundef readonly %4) local_unnamed_addr #0 {
  %6 = icmp eq ptr %0, null
  br i1 %6, label %7, label %10

7:                                                ; preds = %5
  %8 = load ptr, ptr @stderr, align 8, !tbaa !5
  %9 = tail call i32 (ptr, ptr, ...) @fprintf(ptr noundef %8, ptr noundef nonnull @.str, ptr noundef nonnull @.str.1, ptr noundef nonnull @.str.2) #3
  tail call void @exit(i32 noundef -83386157) #4
  unreachable

10:                                               ; preds = %5
  %11 = icmp eq ptr %1, null
  br i1 %11, label %12, label %15

12:                                               ; preds = %10
  %13 = load ptr, ptr @stderr, align 8, !tbaa !5
  %14 = tail call i32 (ptr, ptr, ...) @fprintf(ptr noundef %13, ptr noundef nonnull @.str.3, ptr noundef nonnull @.str.4, ptr noundef nonnull @.str.2) #3
  tail call void @exit(i32 noundef -83384987) #4
  unreachable

15:                                               ; preds = %10
  %16 = icmp eq ptr %4, null
  br i1 %16, label %17, label %20

17:                                               ; preds = %15
  %18 = load ptr, ptr @stderr, align 8, !tbaa !5
  %19 = tail call i32 (ptr, ptr, ...) @fprintf(ptr noundef %18, ptr noundef nonnull @.str.3, ptr noundef nonnull @.str.5, ptr noundef nonnull @.str.2) #3
  tail call void @exit(i32 noundef -83384987) #4
  unreachable

20:                                               ; preds = %15
  %21 = icmp slt i32 %2, 0
  br i1 %21, label %22, label %25

22:                                               ; preds = %20
  %23 = load ptr, ptr @stderr, align 8, !tbaa !5
  %24 = tail call i32 (ptr, ptr, ...) @fprintf(ptr noundef %23, ptr noundef nonnull @.str.3, ptr noundef nonnull @.str.6, ptr noundef nonnull @.str.2) #3
  tail call void @exit(i32 noundef -83384987) #4
  unreachable

25:                                               ; preds = %20
  %26 = icmp slt i32 %3, 1
  br i1 %26, label %27, label %30

27:                                               ; preds = %25
  %28 = load ptr, ptr @stderr, align 8, !tbaa !5
  %29 = tail call i32 (ptr, ptr, ...) @fprintf(ptr noundef %28, ptr noundef nonnull @.str.3, ptr noundef nonnull @.str.7, ptr noundef nonnull @.str.2) #3
  tail call void @exit(i32 noundef -83384987) #4
  unreachable

30:                                               ; preds = %25
  %.not32 = icmp eq i32 %2, 0
  br i1 %.not32, label %._crit_edge, label %.lr.ph.preheader

.lr.ph.preheader:                                 ; preds = %30
  %31 = add nsw i32 %2, -1
  br label %.lr.ph

.lr.ph:                                           ; preds = %.lr.ph.preheader, %39
  %.02434 = phi i32 [ %.1, %39 ], [ %31, %.lr.ph.preheader ]
  %.02533 = phi i32 [ %.126, %39 ], [ 0, %.lr.ph.preheader ]
  %32 = add nuw nsw i32 %.02434, %.02533
  %33 = lshr i32 %32, 1
  %34 = mul nuw nsw i32 %33, %3
  %35 = zext nneg i32 %34 to i64
  %36 = getelementptr inbounds i8, ptr %0, i64 %35
  %37 = tail call i32 %4(ptr noundef nonnull %1, ptr noundef nonnull %36) #5
  %38 = icmp eq i32 %37, 0
  br i1 %38, label %._crit_edge, label %39

39:                                               ; preds = %.lr.ph
  %40 = tail call i32 %4(ptr noundef nonnull %1, ptr noundef nonnull %36) #5
  %41 = icmp slt i32 %40, 0
  %42 = add nsw i32 %33, -1
  %43 = add nuw nsw i32 %33, 1
  %.126 = select i1 %41, i32 %.02533, i32 %43
  %.1 = select i1 %41, i32 %42, i32 %.02434
  %.not = icmp sgt i32 %.126, %.1
  br i1 %.not, label %._crit_edge, label %.lr.ph, !llvm.loop !9

._crit_edge:                                      ; preds = %.lr.ph, %39, %30
  %.0 = phi i32 [ -1, %30 ], [ -1, %39 ], [ %33, %.lr.ph ]
  ret i32 %.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

attributes #0 = { 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 #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 = { cold nounwind }
attributes #4 = { noreturn nounwind }
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 = !{!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,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,ReassociatePass,SROAPass,SimplifyCFGPass,TailCallElimPass