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

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

; Function Attrs: nounwind uwtable
define dso_local void @bubbleSort(ptr noundef %0, i32 noundef %1, i32 noundef %2, ptr noundef %3) #0 {
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  %8 = alloca ptr, align 8
  %9 = alloca i16, align 2
  %10 = alloca ptr, align 8
  %11 = alloca i32, align 4
  %12 = alloca i32, align 4
  %13 = 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
  %14 = load ptr, ptr %5, align 8, !tbaa !5
  %15 = icmp eq ptr %14, null
  br i1 %15, label %16, label %19

16:                                               ; preds = %4
  %17 = load ptr, ptr @stderr, align 8, !tbaa !5
  %18 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %17, ptr noundef @.str, ptr noundef @.str.1, ptr noundef @.str.2) #5
  call void @exit(i32 noundef -83386157) #6
  unreachable

19:                                               ; preds = %4
  %20 = load ptr, ptr %8, align 8, !tbaa !5
  %21 = icmp eq ptr %20, null
  br i1 %21, label %22, label %25

22:                                               ; preds = %19
  %23 = load ptr, ptr @stderr, align 8, !tbaa !5
  %24 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %23, ptr noundef @.str.3, ptr noundef @.str.4, ptr noundef @.str.2) #5
  call void @exit(i32 noundef -83384987) #6
  unreachable

25:                                               ; preds = %19
  %26 = load i32, ptr %6, align 4, !tbaa !9
  %27 = icmp slt i32 %26, 0
  br i1 %27, label %28, label %31

28:                                               ; preds = %25
  %29 = load ptr, ptr @stderr, align 8, !tbaa !5
  %30 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %29, ptr noundef @.str.3, ptr noundef @.str.5, ptr noundef @.str.2) #5
  call void @exit(i32 noundef -83384987) #6
  unreachable

31:                                               ; preds = %25
  %32 = load i32, ptr %7, align 4, !tbaa !9
  %33 = icmp sle i32 %32, 0
  br i1 %33, label %34, label %37

34:                                               ; preds = %31
  %35 = load ptr, ptr @stderr, align 8, !tbaa !5
  %36 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %35, ptr noundef @.str.3, ptr noundef @.str.6, ptr noundef @.str.2) #5
  call void @exit(i32 noundef -83384987) #6
  unreachable

37:                                               ; preds = %31
  br label %38

38:                                               ; preds = %37
  br label %39

39:                                               ; preds = %38
  br label %40

40:                                               ; preds = %39
  call void @llvm.lifetime.start.p0(i64 2, ptr %9) #5
  store i16 0, ptr %9, align 2, !tbaa !11
  call void @llvm.lifetime.start.p0(i64 8, ptr %10) #5
  %41 = load ptr, ptr %5, align 8, !tbaa !5
  store ptr %41, ptr %10, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %11) #5
  %42 = load i32, ptr %6, align 4, !tbaa !9
  %43 = sub nsw i32 %42, 1
  store i32 %43, ptr %11, align 4, !tbaa !9
  br label %44

44:                                               ; preds = %95, %40
  %45 = load i32, ptr %11, align 4, !tbaa !9
  %46 = icmp sgt i32 %45, 0
  br i1 %46, label %48, label %47

47:                                               ; preds = %44
  store i32 2, ptr %12, align 4
  br label %98

48:                                               ; preds = %44
  store i16 0, ptr %9, align 2, !tbaa !11
  call void @llvm.lifetime.start.p0(i64 4, ptr %13) #5
  store i32 0, ptr %13, align 4, !tbaa !9
  br label %49

49:                                               ; preds = %87, %48
  %50 = load i32, ptr %13, align 4, !tbaa !9
  %51 = load i32, ptr %11, align 4, !tbaa !9
  %52 = icmp slt i32 %50, %51
  br i1 %52, label %54, label %53

53:                                               ; preds = %49
  store i32 5, ptr %12, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %13) #5
  br label %90

54:                                               ; preds = %49
  %55 = load ptr, ptr %8, align 8, !tbaa !5
  %56 = load ptr, ptr %10, align 8, !tbaa !5
  %57 = load i32, ptr %13, align 4, !tbaa !9
  %58 = load i32, ptr %7, align 4, !tbaa !9
  %59 = mul nsw i32 %57, %58
  %60 = sext i32 %59 to i64
  %61 = getelementptr inbounds i8, ptr %56, i64 %60
  %62 = load ptr, ptr %10, align 8, !tbaa !5
  %63 = load i32, ptr %13, align 4, !tbaa !9
  %64 = add nsw i32 %63, 1
  %65 = load i32, ptr %7, align 4, !tbaa !9
  %66 = mul nsw i32 %64, %65
  %67 = sext i32 %66 to i64
  %68 = getelementptr inbounds i8, ptr %62, i64 %67
  %69 = call i32 %55(ptr noundef %61, ptr noundef %68)
  %70 = icmp sgt i32 %69, 0
  br i1 %70, label %71, label %86

71:                                               ; preds = %54
  %72 = load ptr, ptr %10, align 8, !tbaa !5
  %73 = load i32, ptr %13, align 4, !tbaa !9
  %74 = load i32, ptr %7, align 4, !tbaa !9
  %75 = mul nsw i32 %73, %74
  %76 = sext i32 %75 to i64
  %77 = getelementptr inbounds i8, ptr %72, i64 %76
  %78 = load ptr, ptr %10, align 8, !tbaa !5
  %79 = load i32, ptr %13, align 4, !tbaa !9
  %80 = add nsw i32 %79, 1
  %81 = load i32, ptr %7, align 4, !tbaa !9
  %82 = mul nsw i32 %80, %81
  %83 = sext i32 %82 to i64
  %84 = getelementptr inbounds i8, ptr %78, i64 %83
  %85 = load i32, ptr %7, align 4, !tbaa !9
  call void @swap(ptr noundef %77, ptr noundef %84, i32 noundef %85)
  store i16 1, ptr %9, align 2, !tbaa !11
  br label %86

86:                                               ; preds = %71, %54
  br label %87

87:                                               ; preds = %86
  %88 = load i32, ptr %13, align 4, !tbaa !9
  %89 = add nsw i32 %88, 1
  store i32 %89, ptr %13, align 4, !tbaa !9
  br label %49, !llvm.loop !13

90:                                               ; preds = %53
  %91 = load i16, ptr %9, align 2, !tbaa !11
  %92 = icmp ne i16 %91, 0
  br i1 %92, label %94, label %93

93:                                               ; preds = %90
  store i32 2, ptr %12, align 4
  br label %98

94:                                               ; preds = %90
  br label %95

95:                                               ; preds = %94
  %96 = load i32, ptr %11, align 4, !tbaa !9
  %97 = add nsw i32 %96, -1
  store i32 %97, ptr %11, align 4, !tbaa !9
  br label %44, !llvm.loop !15

98:                                               ; preds = %93, %47
  call void @llvm.lifetime.end.p0(i64 4, ptr %11) #5
  br label %99

99:                                               ; preds = %98
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #5
  call void @llvm.lifetime.end.p0(i64 2, ptr %9) #5
  ret void
}

; 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

declare void @swap(ptr noundef, ptr noundef, i32 noundef) #4

; 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 = { "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 }

!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 = !{!12, !12, i64 0}
!12 = !{!"short", !7, i64 0}
!13 = distinct !{!13, !14}
!14 = !{!"llvm.loop.mustprogress"}
!15 = distinct !{!15, !14}


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

; Function Attrs: nounwind uwtable
define dso_local void @bubbleSort(ptr noundef %0, i32 noundef %1, i32 noundef %2, ptr noundef readonly %3) local_unnamed_addr #0 {
  %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.2) #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.4, ptr noundef nonnull @.str.2) #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.5, ptr noundef nonnull @.str.2) #4
  tail call void @exit(i32 noundef -83384987) #5
  unreachable

19:                                               ; preds = %14
  %20 = icmp slt i32 %2, 1
  br i1 %20, label %24, label %.preheader31.preheader

.preheader31.preheader:                           ; preds = %19
  %21 = zext nneg i32 %2 to i64
  %22 = add nsw i32 %1, -1
  %23 = zext i32 %22 to i64
  br label %.preheader31

24:                                               ; preds = %19
  %25 = load ptr, ptr @stderr, align 8, !tbaa !5
  %26 = tail call i32 (ptr, ptr, ...) @fprintf(ptr noundef %25, ptr noundef nonnull @.str.3, ptr noundef nonnull @.str.6, ptr noundef nonnull @.str.2) #4
  tail call void @exit(i32 noundef -83384987) #5
  unreachable

.preheader31:                                     ; preds = %.preheader31.preheader, %._crit_edge
  %indvars.iv36 = phi i64 [ %23, %.preheader31.preheader ], [ %indvars.iv.next37, %._crit_edge ]
  %.025.in = phi i32 [ %1, %.preheader31.preheader ], [ %.025, %._crit_edge ]
  %.025 = add nsw i32 %.025.in, -1
  %27 = icmp sgt i32 %.025.in, 1
  br i1 %27, label %.lr.ph, label %36

._crit_edge:                                      ; preds = %35
  %.not = icmp eq i16 %.1, 0
  %indvars.iv.next37 = add nsw i64 %indvars.iv36, -1
  br i1 %.not, label %36, label %.preheader31, !llvm.loop !9

.lr.ph:                                           ; preds = %.preheader31, %35
  %indvars.iv = phi i64 [ %indvars.iv.next, %35 ], [ 0, %.preheader31 ]
  %.02632 = phi i16 [ %.1, %35 ], [ 0, %.preheader31 ]
  %28 = mul nuw nsw i64 %indvars.iv, %21
  %29 = getelementptr inbounds i8, ptr %0, i64 %28
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %30 = mul nuw nsw i64 %indvars.iv.next, %21
  %31 = getelementptr inbounds i8, ptr %0, i64 %30
  %32 = tail call i32 %3(ptr noundef nonnull %29, ptr noundef nonnull %31) #6
  %33 = icmp sgt i32 %32, 0
  br i1 %33, label %34, label %35

34:                                               ; preds = %.lr.ph
  tail call void @swap(ptr noundef nonnull %29, ptr noundef nonnull %31, i32 noundef %2) #6
  br label %35

35:                                               ; preds = %.lr.ph, %34
  %.1 = phi i16 [ 1, %34 ], [ %.02632, %.lr.ph ]
  %exitcond.not = icmp eq i64 %indvars.iv.next, %indvars.iv36
  br i1 %exitcond.not, label %._crit_edge, label %.lr.ph, !llvm.loop !11

36:                                               ; preds = %._crit_edge, %.preheader31
  ret void
}

; 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

declare void @swap(ptr noundef, ptr noundef, i32 noundef) local_unnamed_addr #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 = { 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 = { "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 }

!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"}
!11 = distinct !{!11, !10}


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