; LLVM IR from VAR-solutions/Algorithms :: Sorting/Heapsort/C (Heapsort)

; 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"

@.str = external hidden unnamed_addr constant [23 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [3 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [17 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [23 x i8], align 1
@.str.4 = external hidden unnamed_addr constant [4 x i8], align 1

; Function Attrs: nounwind uwtable
define dso_local void @main() #0 {
  %1 = alloca [30 x i32], align 16
  %2 = alloca i32, align 4
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  call void @llvm.lifetime.start.p0(i64 120, ptr %1) #3
  call void @llvm.lifetime.start.p0(i64 4, ptr %2) #3
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #3
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #3
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #3
  %6 = call i32 (ptr, ...) @printf(ptr noundef @.str)
  %7 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str.1, ptr noundef %2)
  %8 = call i32 (ptr, ...) @printf(ptr noundef @.str.2)
  store i32 1, ptr %3, align 4, !tbaa !5
  br label %9

9:                                                ; preds = %18, %0
  %10 = load i32, ptr %3, align 4, !tbaa !5
  %11 = load i32, ptr %2, align 4, !tbaa !5
  %12 = icmp sle i32 %10, %11
  br i1 %12, label %13, label %21

13:                                               ; preds = %9
  %14 = load i32, ptr %3, align 4, !tbaa !5
  %15 = sext i32 %14 to i64
  %16 = getelementptr inbounds [30 x i32], ptr %1, i64 0, i64 %15
  %17 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str.1, ptr noundef %16)
  br label %18

18:                                               ; preds = %13
  %19 = load i32, ptr %3, align 4, !tbaa !5
  %20 = add nsw i32 %19, 1
  store i32 %20, ptr %3, align 4, !tbaa !5
  br label %9, !llvm.loop !9

21:                                               ; preds = %9
  %22 = load i32, ptr %2, align 4, !tbaa !5
  %23 = getelementptr inbounds [30 x i32], ptr %1, i64 0, i64 0
  store i32 %22, ptr %23, align 16, !tbaa !5
  %24 = getelementptr inbounds [30 x i32], ptr %1, i64 0, i64 0
  call void @create(ptr noundef %24)
  br label %25

25:                                               ; preds = %29, %21
  %26 = getelementptr inbounds [30 x i32], ptr %1, i64 0, i64 0
  %27 = load i32, ptr %26, align 16, !tbaa !5
  %28 = icmp sgt i32 %27, 1
  br i1 %28, label %29, label %47

29:                                               ; preds = %25
  %30 = getelementptr inbounds [30 x i32], ptr %1, i64 0, i64 0
  %31 = load i32, ptr %30, align 16, !tbaa !5
  store i32 %31, ptr %4, align 4, !tbaa !5
  %32 = getelementptr inbounds [30 x i32], ptr %1, i64 0, i64 1
  %33 = load i32, ptr %32, align 4, !tbaa !5
  store i32 %33, ptr %5, align 4, !tbaa !5
  %34 = load i32, ptr %4, align 4, !tbaa !5
  %35 = sext i32 %34 to i64
  %36 = getelementptr inbounds [30 x i32], ptr %1, i64 0, i64 %35
  %37 = load i32, ptr %36, align 4, !tbaa !5
  %38 = getelementptr inbounds [30 x i32], ptr %1, i64 0, i64 1
  store i32 %37, ptr %38, align 4, !tbaa !5
  %39 = load i32, ptr %5, align 4, !tbaa !5
  %40 = load i32, ptr %4, align 4, !tbaa !5
  %41 = sext i32 %40 to i64
  %42 = getelementptr inbounds [30 x i32], ptr %1, i64 0, i64 %41
  store i32 %39, ptr %42, align 4, !tbaa !5
  %43 = getelementptr inbounds [30 x i32], ptr %1, i64 0, i64 0
  %44 = load i32, ptr %43, align 16, !tbaa !5
  %45 = add nsw i32 %44, -1
  store i32 %45, ptr %43, align 16, !tbaa !5
  %46 = getelementptr inbounds [30 x i32], ptr %1, i64 0, i64 0
  call void @down_adjust(ptr noundef %46, i32 noundef 1)
  br label %25, !llvm.loop !11

47:                                               ; preds = %25
  %48 = call i32 (ptr, ...) @printf(ptr noundef @.str.3)
  store i32 1, ptr %3, align 4, !tbaa !5
  br label %49

49:                                               ; preds = %59, %47
  %50 = load i32, ptr %3, align 4, !tbaa !5
  %51 = load i32, ptr %2, align 4, !tbaa !5
  %52 = icmp sle i32 %50, %51
  br i1 %52, label %53, label %62

53:                                               ; preds = %49
  %54 = load i32, ptr %3, align 4, !tbaa !5
  %55 = sext i32 %54 to i64
  %56 = getelementptr inbounds [30 x i32], ptr %1, i64 0, i64 %55
  %57 = load i32, ptr %56, align 4, !tbaa !5
  %58 = call i32 (ptr, ...) @printf(ptr noundef @.str.4, i32 noundef %57)
  br label %59

59:                                               ; preds = %53
  %60 = load i32, ptr %3, align 4, !tbaa !5
  %61 = add nsw i32 %60, 1
  store i32 %61, ptr %3, align 4, !tbaa !5
  br label %49, !llvm.loop !12

62:                                               ; preds = %49
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #3
  call void @llvm.lifetime.end.p0(i64 120, ptr %1) #3
  ret void
}

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

declare i32 @printf(ptr noundef, ...) #2

declare i32 @__isoc99_scanf(ptr noundef, ...) #2

; Function Attrs: nounwind uwtable
declare dso_local void @create(ptr noundef) #0

; Function Attrs: nounwind uwtable
declare dso_local void @down_adjust(ptr noundef, i32 noundef) #0

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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" }
attributes #3 = { 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 = !{!"int", !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}
!12 = distinct !{!12, !10}


; 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"

@.str = external hidden unnamed_addr constant [23 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [3 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [17 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [23 x i8], align 1
@.str.4 = external hidden unnamed_addr constant [4 x i8], align 1

; Function Attrs: nounwind uwtable
define dso_local void @main() local_unnamed_addr #0 {
  %1 = alloca [30 x i32], align 16
  %2 = alloca i32, align 4
  call void @llvm.lifetime.start.p0(i64 120, ptr nonnull %1) #3
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %2) #3
  %3 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str)
  %4 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str.1, ptr noundef nonnull %2)
  %5 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.2)
  %6 = load i32, ptr %2, align 4, !tbaa !5
  %.not12 = icmp slt i32 %6, 1
  br i1 %.not12, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %0, %.lr.ph
  %indvars.iv = phi i64 [ %indvars.iv.next, %.lr.ph ], [ 1, %0 ]
  %7 = getelementptr inbounds [30 x i32], ptr %1, i64 0, i64 %indvars.iv
  %8 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str.1, ptr noundef nonnull %7)
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %9 = load i32, ptr %2, align 4, !tbaa !5
  %10 = sext i32 %9 to i64
  %.not.not = icmp slt i64 %indvars.iv, %10
  br i1 %.not.not, label %.lr.ph, label %._crit_edge, !llvm.loop !9

._crit_edge:                                      ; preds = %.lr.ph, %0
  %.lcssa = phi i32 [ %6, %0 ], [ %9, %.lr.ph ]
  store i32 %.lcssa, ptr %1, align 16, !tbaa !5
  call void @create(ptr noundef nonnull %1)
  %11 = load i32, ptr %1, align 16, !tbaa !5
  %12 = icmp sgt i32 %11, 1
  br i1 %12, label %.lr.ph15, label %._crit_edge16

.lr.ph15:                                         ; preds = %._crit_edge
  %13 = getelementptr inbounds i8, ptr %1, i64 4
  br label %14

14:                                               ; preds = %.lr.ph15, %14
  %15 = phi i32 [ %11, %.lr.ph15 ], [ %21, %14 ]
  %16 = load i32, ptr %13, align 4, !tbaa !5
  %17 = zext nneg i32 %15 to i64
  %18 = getelementptr inbounds [30 x i32], ptr %1, i64 0, i64 %17
  %19 = load i32, ptr %18, align 4, !tbaa !5
  store i32 %19, ptr %13, align 4, !tbaa !5
  store i32 %16, ptr %18, align 4, !tbaa !5
  %20 = add nsw i32 %15, -1
  store i32 %20, ptr %1, align 16, !tbaa !5
  call void @down_adjust(ptr noundef nonnull %1, i32 noundef 1)
  %21 = load i32, ptr %1, align 16, !tbaa !5
  %22 = icmp sgt i32 %21, 1
  br i1 %22, label %14, label %._crit_edge16, !llvm.loop !11

._crit_edge16:                                    ; preds = %14, %._crit_edge
  %23 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.3)
  %24 = load i32, ptr %2, align 4, !tbaa !5
  %.not1117 = icmp slt i32 %24, 1
  br i1 %.not1117, label %._crit_edge21, label %.lr.ph20

.lr.ph20:                                         ; preds = %._crit_edge16, %.lr.ph20
  %indvars.iv24 = phi i64 [ %indvars.iv.next25, %.lr.ph20 ], [ 1, %._crit_edge16 ]
  %25 = getelementptr inbounds [30 x i32], ptr %1, i64 0, i64 %indvars.iv24
  %26 = load i32, ptr %25, align 4, !tbaa !5
  %27 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.4, i32 noundef %26)
  %indvars.iv.next25 = add nuw nsw i64 %indvars.iv24, 1
  %28 = load i32, ptr %2, align 4, !tbaa !5
  %29 = sext i32 %28 to i64
  %.not11.not = icmp slt i64 %indvars.iv24, %29
  br i1 %.not11.not, label %.lr.ph20, label %._crit_edge21, !llvm.loop !12

._crit_edge21:                                    ; preds = %.lr.ph20, %._crit_edge16
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %2) #3
  call void @llvm.lifetime.end.p0(i64 120, ptr nonnull %1) #3
  ret void
}

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: nofree nounwind
declare noundef i32 @printf(ptr nocapture noundef readonly, ...) local_unnamed_addr #2

; Function Attrs: nofree nounwind
declare noundef i32 @__isoc99_scanf(ptr nocapture noundef readonly, ...) local_unnamed_addr #2

; Function Attrs: nounwind uwtable
declare dso_local void @create(ptr noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
declare dso_local void @down_adjust(ptr noundef, i32 noundef) local_unnamed_addr #0

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

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 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { 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 #3 = { 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 = !{!"int", !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}
!12 = distinct !{!12, !10}


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