; LLVM IR from UtkarshPathrabe/Competitive-Coding :: Model Algorithms/Heap/Heap.ll (Z9HEAP_SORTRSt6vectorIiSaIiEE)

; 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"

@HEAPSIZE = external dso_local global i32, align 4
@.str.4 = external hidden unnamed_addr constant [25 x i8], align 1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_Z4SWAPPiS_(ptr noundef, ptr noundef) #0

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

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i32 @_Z6LENGTHRSt6vectorIiSaIiEE(ptr noundef nonnull align 8 dereferenceable(24)) #0

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

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z11MAX_HEAPIFYRSt6vectorIiSaIiEEi(ptr noundef nonnull align 8 dereferenceable(24), i32 noundef) #3

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #0 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z14BUILD_MAX_HEAPRSt6vectorIiSaIiEE(ptr noundef nonnull align 8 dereferenceable(24)) #3

; Function Attrs: mustprogress uwtable
define dso_local void @_Z9HEAP_SORTRSt6vectorIiSaIiEE(ptr noundef nonnull align 8 dereferenceable(24) %0) #3 {
  %2 = alloca ptr, align 8
  %3 = alloca i32, align 4
  store ptr %0, ptr %2, align 8, !tbaa !5
  %4 = call i32 (ptr, ...) @printf(ptr noundef @.str.4)
  %5 = load ptr, ptr %2, align 8, !tbaa !5
  call void @_Z14BUILD_MAX_HEAPRSt6vectorIiSaIiEE(ptr noundef nonnull align 8 dereferenceable(24) %5)
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #4
  %6 = load i32, ptr @HEAPSIZE, align 4, !tbaa !9
  %7 = sub nsw i32 %6, 1
  store i32 %7, ptr %3, align 4, !tbaa !9
  br label %8

8:                                                ; preds = %22, %1
  %9 = load i32, ptr %3, align 4, !tbaa !9
  %10 = icmp sgt i32 %9, 0
  br i1 %10, label %12, label %11

11:                                               ; preds = %8
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #4
  br label %25

12:                                               ; preds = %8
  %13 = load ptr, ptr %2, align 8, !tbaa !5
  %14 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %13, i64 noundef 0) #4
  %15 = load ptr, ptr %2, align 8, !tbaa !5
  %16 = load i32, ptr %3, align 4, !tbaa !9
  %17 = sext i32 %16 to i64
  %18 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %15, i64 noundef %17) #4
  call void @_Z4SWAPPiS_(ptr noundef %14, ptr noundef %18)
  %19 = load i32, ptr @HEAPSIZE, align 4, !tbaa !9
  %20 = sub nsw i32 %19, 1
  store i32 %20, ptr @HEAPSIZE, align 4, !tbaa !9
  %21 = load ptr, ptr %2, align 8, !tbaa !5
  call void @_Z11MAX_HEAPIFYRSt6vectorIiSaIiEEi(ptr noundef nonnull align 8 dereferenceable(24) %21, i32 noundef 0)
  br label %22

22:                                               ; preds = %12
  %23 = load i32, ptr %3, align 4, !tbaa !9
  %24 = add nsw i32 %23, -1
  store i32 %24, ptr %3, align 4, !tbaa !9
  br label %8, !llvm.loop !11

25:                                               ; preds = %11
  %26 = load ptr, ptr %2, align 8, !tbaa !5
  %27 = call noundef i32 @_Z6LENGTHRSt6vectorIiSaIiEE(ptr noundef nonnull align 8 dereferenceable(24) %26)
  store i32 %27, ptr @HEAPSIZE, align 4, !tbaa !9
  ret void
}

attributes #0 = { mustprogress 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 = { 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 #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"

@HEAPSIZE = external dso_local local_unnamed_addr global i32, align 4
@.str.4 = external hidden unnamed_addr constant [25 x i8], align 1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_Z4SWAPPiS_(ptr noundef, ptr noundef) local_unnamed_addr #0

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i32 @_Z6LENGTHRSt6vectorIiSaIiEE(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #0

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

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z11MAX_HEAPIFYRSt6vectorIiSaIiEEi(ptr noundef nonnull align 8 dereferenceable(24), i32 noundef) local_unnamed_addr #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z14BUILD_MAX_HEAPRSt6vectorIiSaIiEE(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #2

; Function Attrs: mustprogress uwtable
define dso_local void @_Z9HEAP_SORTRSt6vectorIiSaIiEE(ptr noundef nonnull align 8 dereferenceable(24) %0) local_unnamed_addr #2 {
  %2 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.4)
  tail call void @_Z14BUILD_MAX_HEAPRSt6vectorIiSaIiEE(ptr noundef nonnull align 8 dereferenceable(24) %0)
  %3 = load i32, ptr @HEAPSIZE, align 4, !tbaa !5
  %4 = icmp sgt i32 %3, 1
  br i1 %4, label %.lr.ph.preheader, label %._crit_edge

.lr.ph.preheader:                                 ; preds = %1
  %5 = zext nneg i32 %3 to i64
  br label %.lr.ph

._crit_edge:                                      ; preds = %.lr.ph, %1
  %6 = tail call noundef i32 @_Z6LENGTHRSt6vectorIiSaIiEE(ptr noundef nonnull align 8 dereferenceable(24) %0)
  store i32 %6, ptr @HEAPSIZE, align 4, !tbaa !5
  ret void

.lr.ph:                                           ; preds = %.lr.ph.preheader, %.lr.ph
  %indvars.iv = phi i64 [ %5, %.lr.ph.preheader ], [ %indvars.iv.next, %.lr.ph ]
  %indvars.iv.next = add nsw i64 %indvars.iv, -1
  %7 = tail call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %0, i64 noundef 0) #3
  %8 = tail call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %0, i64 noundef %indvars.iv.next) #3
  tail call void @_Z4SWAPPiS_(ptr noundef nonnull %7, ptr noundef nonnull %8)
  %9 = load i32, ptr @HEAPSIZE, align 4, !tbaa !5
  %10 = add nsw i32 %9, -1
  store i32 %10, ptr @HEAPSIZE, align 4, !tbaa !5
  tail call void @_Z11MAX_HEAPIFYRSt6vectorIiSaIiEEi(ptr noundef nonnull align 8 dereferenceable(24) %0, i32 noundef 0)
  %11 = icmp ugt i64 %indvars.iv, 2
  br i1 %11, label %.lr.ph, label %._crit_edge, !llvm.loop !9
}

attributes #0 = { mustprogress 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 = { 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 = { 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++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}


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