; LLVM IR from Lakhankumawat/LearnCPP :: H-Heap/MinCostRopes.ll (Z4costPxx)

; 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"

%"class.std::priority_queue" = type <{ %"class.std::vector", [8 x i8] }>
%"class.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<long long, std::allocator<long long>>::_Vector_impl" }
%"struct.std::_Vector_base<long long, std::allocator<long long>>::_Vector_impl" = type { %"struct.std::_Vector_base<long long, std::allocator<long long>>::_Vector_impl_data" }
%"struct.std::_Vector_base<long long, std::allocator<long long>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"struct.std::greater" = type { i8 }

; Function Attrs: mustprogress uwtable
define dso_local noundef i64 @_Z4costPxx(ptr noundef %0, i64 noundef %1) #0 personality ptr @__gxx_personality_v0 {
  %3 = alloca ptr, align 8
  %4 = alloca i64, align 8
  %5 = alloca %"class.std::priority_queue", align 8
  %6 = alloca %"struct.std::greater", align 1
  %7 = alloca i64, align 8
  %8 = alloca ptr, align 8
  %9 = alloca i32, align 4
  %10 = alloca i64, align 8
  %11 = alloca i64, align 8
  %12 = alloca i64, align 8
  store ptr %0, ptr %3, align 8, !tbaa !5
  store i64 %1, ptr %4, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 32, ptr %5) #4
  %13 = load ptr, ptr %3, align 8, !tbaa !5
  %14 = load ptr, ptr %3, align 8, !tbaa !5
  %15 = load i64, ptr %4, align 8, !tbaa !9
  %16 = getelementptr inbounds i64, ptr %14, i64 %15
  call void @llvm.lifetime.start.p0(i64 1, ptr %6) #4
  call void @_ZNSt14priority_queueIxSt6vectorIxSaIxEESt7greaterIxEEC2IPxvEET_S8_RKS4_(ptr noundef nonnull align 8 dereferenceable(25) %5, ptr noundef %13, ptr noundef %16, ptr noundef nonnull align 1 dereferenceable(1) %6)
  call void @llvm.lifetime.end.p0(i64 1, ptr %6) #4
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #4
  store i64 0, ptr %7, align 8, !tbaa !9
  br label %17

17:                                               ; preds = %38, %2
  %18 = invoke noundef i64 @_ZNKSt14priority_queueIxSt6vectorIxSaIxEESt7greaterIxEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(25) %5)
          to label %19 unwind label %39

19:                                               ; preds = %17
  %20 = icmp ugt i64 %18, 1
  br i1 %20, label %21, label %57

21:                                               ; preds = %19
  call void @llvm.lifetime.start.p0(i64 8, ptr %10) #4
  %22 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNKSt14priority_queueIxSt6vectorIxSaIxEESt7greaterIxEE3topEv(ptr noundef nonnull align 8 dereferenceable(25) %5)
          to label %23 unwind label %43

23:                                               ; preds = %21
  %24 = load i64, ptr %22, align 8, !tbaa !9
  store i64 %24, ptr %10, align 8, !tbaa !9
  invoke void @_ZNSt14priority_queueIxSt6vectorIxSaIxEESt7greaterIxEE3popEv(ptr noundef nonnull align 8 dereferenceable(25) %5)
          to label %25 unwind label %43

25:                                               ; preds = %23
  call void @llvm.lifetime.start.p0(i64 8, ptr %11) #4
  %26 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNKSt14priority_queueIxSt6vectorIxSaIxEESt7greaterIxEE3topEv(ptr noundef nonnull align 8 dereferenceable(25) %5)
          to label %27 unwind label %47

27:                                               ; preds = %25
  %28 = load i64, ptr %26, align 8, !tbaa !9
  store i64 %28, ptr %11, align 8, !tbaa !9
  invoke void @_ZNSt14priority_queueIxSt6vectorIxSaIxEESt7greaterIxEE3popEv(ptr noundef nonnull align 8 dereferenceable(25) %5)
          to label %29 unwind label %47

29:                                               ; preds = %27
  %30 = load i64, ptr %7, align 8, !tbaa !9
  %31 = load i64, ptr %10, align 8, !tbaa !9
  %32 = add nsw i64 %30, %31
  %33 = load i64, ptr %11, align 8, !tbaa !9
  %34 = add nsw i64 %32, %33
  store i64 %34, ptr %7, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %12) #4
  %35 = load i64, ptr %10, align 8, !tbaa !9
  %36 = load i64, ptr %11, align 8, !tbaa !9
  %37 = add nsw i64 %35, %36
  store i64 %37, ptr %12, align 8, !tbaa !9
  invoke void @_ZNSt14priority_queueIxSt6vectorIxSaIxEESt7greaterIxEE4pushEOx(ptr noundef nonnull align 8 dereferenceable(25) %5, ptr noundef nonnull align 8 dereferenceable(8) %12)
          to label %38 unwind label %51

38:                                               ; preds = %29
  call void @llvm.lifetime.end.p0(i64 8, ptr %12) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %11) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #4
  br label %17, !llvm.loop !11

39:                                               ; preds = %17
  %40 = landingpad { ptr, i32 }
          cleanup
  %41 = extractvalue { ptr, i32 } %40, 0
  store ptr %41, ptr %8, align 8
  %42 = extractvalue { ptr, i32 } %40, 1
  store i32 %42, ptr %9, align 4
  br label %59

43:                                               ; preds = %23, %21
  %44 = landingpad { ptr, i32 }
          cleanup
  %45 = extractvalue { ptr, i32 } %44, 0
  store ptr %45, ptr %8, align 8
  %46 = extractvalue { ptr, i32 } %44, 1
  store i32 %46, ptr %9, align 4
  br label %56

47:                                               ; preds = %27, %25
  %48 = landingpad { ptr, i32 }
          cleanup
  %49 = extractvalue { ptr, i32 } %48, 0
  store ptr %49, ptr %8, align 8
  %50 = extractvalue { ptr, i32 } %48, 1
  store i32 %50, ptr %9, align 4
  br label %55

51:                                               ; preds = %29
  %52 = landingpad { ptr, i32 }
          cleanup
  %53 = extractvalue { ptr, i32 } %52, 0
  store ptr %53, ptr %8, align 8
  %54 = extractvalue { ptr, i32 } %52, 1
  store i32 %54, ptr %9, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %12) #4
  br label %55

55:                                               ; preds = %51, %47
  call void @llvm.lifetime.end.p0(i64 8, ptr %11) #4
  br label %56

56:                                               ; preds = %55, %43
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #4
  br label %59

57:                                               ; preds = %19
  %58 = load i64, ptr %7, align 8, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #4
  call void @_ZNSt14priority_queueIxSt6vectorIxSaIxEESt7greaterIxEED2Ev(ptr noundef nonnull align 8 dereferenceable(25) %5) #4
  call void @llvm.lifetime.end.p0(i64 32, ptr %5) #4
  ret i64 %58

59:                                               ; preds = %56, %39
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #4
  call void @_ZNSt14priority_queueIxSt6vectorIxSaIxEESt7greaterIxEED2Ev(ptr noundef nonnull align 8 dereferenceable(25) %5) #4
  call void @llvm.lifetime.end.p0(i64 32, ptr %5) #4
  br label %60

60:                                               ; preds = %59
  %61 = load ptr, ptr %8, align 8
  %62 = load i32, ptr %9, align 4
  %63 = insertvalue { ptr, i32 } poison, ptr %61, 0
  %64 = insertvalue { ptr, i32 } %63, i32 %62, 1
  resume { ptr, i32 } %64
}

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

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt14priority_queueIxSt6vectorIxSaIxEESt7greaterIxEEC2IPxvEET_S8_RKS4_(ptr noundef nonnull align 8 dereferenceable(25), ptr noundef, ptr noundef, ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #0 align 2

; 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 i64 @_ZNKSt14priority_queueIxSt6vectorIxSaIxEESt7greaterIxEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(25)) #2 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNKSt14priority_queueIxSt6vectorIxSaIxEESt7greaterIxEE3topEv(ptr noundef nonnull align 8 dereferenceable(25)) #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt14priority_queueIxSt6vectorIxSaIxEESt7greaterIxEE3popEv(ptr noundef nonnull align 8 dereferenceable(25)) #0 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt14priority_queueIxSt6vectorIxSaIxEESt7greaterIxEE4pushEOx(ptr noundef nonnull align 8 dereferenceable(25), ptr noundef nonnull align 8 dereferenceable(8)) #0 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZNSt14priority_queueIxSt6vectorIxSaIxEESt7greaterIxEED2Ev(ptr noundef nonnull align 8 dereferenceable(25)) unnamed_addr #3 align 2

attributes #0 = { 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 #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { 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 #3 = { inlinehint 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 #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 = !{!"long long", !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"

%"class.std::priority_queue" = type <{ %"class.std::vector", [8 x i8] }>
%"class.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<long long, std::allocator<long long>>::_Vector_impl" }
%"struct.std::_Vector_base<long long, std::allocator<long long>>::_Vector_impl" = type { %"struct.std::_Vector_base<long long, std::allocator<long long>>::_Vector_impl_data" }
%"struct.std::_Vector_base<long long, std::allocator<long long>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"struct.std::greater" = type { i8 }

; Function Attrs: mustprogress uwtable
define dso_local noundef i64 @_Z4costPxx(ptr noundef %0, i64 noundef %1) local_unnamed_addr #0 personality ptr @__gxx_personality_v0 {
  %3 = alloca %"class.std::priority_queue", align 8
  %4 = alloca %"struct.std::greater", align 1
  %5 = alloca i64, align 8
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %3) #4
  %6 = getelementptr inbounds i64, ptr %0, i64 %1
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %4) #4
  call void @_ZNSt14priority_queueIxSt6vectorIxSaIxEESt7greaterIxEEC2IPxvEET_S8_RKS4_(ptr noundef nonnull align 8 dereferenceable(25) %3, ptr noundef %0, ptr noundef %6, ptr noundef nonnull align 1 dereferenceable(1) %4)
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %4) #4
  %7 = call noundef i64 @_ZNKSt14priority_queueIxSt6vectorIxSaIxEESt7greaterIxEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(25) %3)
  %8 = icmp ugt i64 %7, 1
  br i1 %8, label %.lr.ph, label %._crit_edge

.lr.ph:                                           ; preds = %2, %16
  %.018 = phi i64 [ %18, %16 ], [ 0, %2 ]
  %9 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNKSt14priority_queueIxSt6vectorIxSaIxEESt7greaterIxEE3topEv(ptr noundef nonnull align 8 dereferenceable(25) %3)
  %10 = load i64, ptr %9, align 8, !tbaa !5
  invoke void @_ZNSt14priority_queueIxSt6vectorIxSaIxEESt7greaterIxEE3popEv(ptr noundef nonnull align 8 dereferenceable(25) %3)
          to label %11 unwind label %21

11:                                               ; preds = %.lr.ph
  %12 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNKSt14priority_queueIxSt6vectorIxSaIxEESt7greaterIxEE3topEv(ptr noundef nonnull align 8 dereferenceable(25) %3)
  %13 = load i64, ptr %12, align 8, !tbaa !5
  invoke void @_ZNSt14priority_queueIxSt6vectorIxSaIxEESt7greaterIxEE3popEv(ptr noundef nonnull align 8 dereferenceable(25) %3)
          to label %14 unwind label %23

14:                                               ; preds = %11
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %5) #4
  %15 = add nsw i64 %13, %10
  store i64 %15, ptr %5, align 8, !tbaa !5
  invoke void @_ZNSt14priority_queueIxSt6vectorIxSaIxEESt7greaterIxEE4pushEOx(ptr noundef nonnull align 8 dereferenceable(25) %3, ptr noundef nonnull align 8 dereferenceable(8) %5)
          to label %16 unwind label %25

16:                                               ; preds = %14
  %17 = add nsw i64 %10, %.018
  %18 = add nsw i64 %17, %13
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %5) #4
  %19 = call noundef i64 @_ZNKSt14priority_queueIxSt6vectorIxSaIxEESt7greaterIxEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(25) %3)
  %20 = icmp ugt i64 %19, 1
  br i1 %20, label %.lr.ph, label %._crit_edge, !llvm.loop !9

21:                                               ; preds = %.lr.ph
  %22 = landingpad { ptr, i32 }
          cleanup
  br label %27

23:                                               ; preds = %11
  %24 = landingpad { ptr, i32 }
          cleanup
  br label %27

25:                                               ; preds = %14
  %26 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %5) #4
  br label %27

27:                                               ; preds = %23, %25, %21
  %.pn.pn = phi { ptr, i32 } [ %22, %21 ], [ %26, %25 ], [ %24, %23 ]
  call void @_ZNSt14priority_queueIxSt6vectorIxSaIxEESt7greaterIxEED2Ev(ptr noundef nonnull align 8 dereferenceable(25) %3) #4
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %3) #4
  resume { ptr, i32 } %.pn.pn

._crit_edge:                                      ; preds = %16, %2
  %.0.lcssa = phi i64 [ 0, %2 ], [ %18, %16 ]
  call void @_ZNSt14priority_queueIxSt6vectorIxSaIxEESt7greaterIxEED2Ev(ptr noundef nonnull align 8 dereferenceable(25) %3) #4
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %3) #4
  ret i64 %.0.lcssa
}

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

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt14priority_queueIxSt6vectorIxSaIxEESt7greaterIxEEC2IPxvEET_S8_RKS4_(ptr noundef nonnull align 8 dereferenceable(25), ptr noundef, ptr noundef, ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #0 align 2

; Function Attrs: mustprogress 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 i64 @_ZNKSt14priority_queueIxSt6vectorIxSaIxEESt7greaterIxEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(25)) local_unnamed_addr #2 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNKSt14priority_queueIxSt6vectorIxSaIxEESt7greaterIxEE3topEv(ptr noundef nonnull align 8 dereferenceable(25)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt14priority_queueIxSt6vectorIxSaIxEESt7greaterIxEE3popEv(ptr noundef nonnull align 8 dereferenceable(25)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt14priority_queueIxSt6vectorIxSaIxEESt7greaterIxEE4pushEOx(ptr noundef nonnull align 8 dereferenceable(25), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #0 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZNSt14priority_queueIxSt6vectorIxSaIxEESt7greaterIxEED2Ev(ptr noundef nonnull align 8 dereferenceable(25)) unnamed_addr #3 align 2

attributes #0 = { 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 #1 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { 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 #3 = { inlinehint 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 #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 = !{!"long long", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: GVNPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,JumpThreadingPass,LCSSAPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,ReassociatePass,SROAPass,SimplifyCFGPass