; LLVM IR from ahampriyanshu/algo-ds-101 :: Algorithms/Graph/Dijkstra/dijkstra_leftist_heap/WDGraph.ll (ZN7WDGraph10printGraphEv)

; 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::basic_ostream" = type { ptr, %"class.std::basic_ios" }
%"class.std::basic_ios" = type { %"class.std::ios_base", ptr, i8, i8, ptr, ptr, ptr, ptr }
%"class.std::ios_base" = type { ptr, i64, i64, i32, i32, i32, ptr, %"struct.std::ios_base::_Words", [8 x %"struct.std::ios_base::_Words"], i32, ptr, %"class.std::locale" }
%"struct.std::ios_base::_Words" = type { ptr, i64 }
%"class.std::locale" = type { ptr }
%class.WDGraph = type { ptr, i32, ptr }
%class.VertexNode = type { i32, float, i32, i8, ptr, ptr, ptr }
%class.EdgeNode = type { i32, i32, float, ptr }

@_ZSt4cerr = external global %"class.std::basic_ostream", align 8
@.str = external hidden unnamed_addr constant [20 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [5 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [3 x i8], align 1

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN7WDGraph10printGraphEv(ptr noundef nonnull align 8 dereferenceable(24) %0) #1 align 2 {
  %2 = alloca ptr, align 8
  %3 = alloca ptr, align 8
  %4 = alloca i32, align 4
  %5 = alloca ptr, align 8
  store ptr %0, ptr %2, align 8, !tbaa !5
  %6 = load ptr, ptr %2, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #4
  %7 = getelementptr inbounds %class.WDGraph, ptr %6, i32 0, i32 0
  %8 = load ptr, ptr %7, align 8, !tbaa !9
  store ptr %8, ptr %3, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #4
  store i32 0, ptr %4, align 4, !tbaa !12
  br label %9

9:                                                ; preds = %48, %1
  %10 = load i32, ptr %4, align 4, !tbaa !12
  %11 = getelementptr inbounds %class.WDGraph, ptr %6, i32 0, i32 1
  %12 = load i32, ptr %11, align 8, !tbaa !13
  %13 = icmp slt i32 %10, %12
  br i1 %13, label %15, label %14

14:                                               ; preds = %9
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #4
  br label %51

15:                                               ; preds = %9
  %16 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cerr, ptr noundef @.str)
  %17 = load ptr, ptr %3, align 8, !tbaa !5
  %18 = getelementptr inbounds %class.VertexNode, ptr %17, i32 0, i32 0
  %19 = load i32, ptr %18, align 8, !tbaa !14
  %20 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) %16, i32 noundef %19)
  %21 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_c(ptr noundef nonnull align 8 dereferenceable(8) %20, i8 noundef signext 10)
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #4
  %22 = load ptr, ptr %3, align 8, !tbaa !5
  %23 = getelementptr inbounds %class.VertexNode, ptr %22, i32 0, i32 6
  %24 = load ptr, ptr %23, align 8, !tbaa !18
  store ptr %24, ptr %5, align 8, !tbaa !5
  br label %25

25:                                               ; preds = %28, %15
  %26 = load ptr, ptr %5, align 8, !tbaa !5
  %27 = icmp ne ptr %26, null
  br i1 %27, label %28, label %43

28:                                               ; preds = %25
  %29 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cerr, ptr noundef @.str.1)
  %30 = load ptr, ptr %5, align 8, !tbaa !5
  %31 = getelementptr inbounds %class.EdgeNode, ptr %30, i32 0, i32 1
  %32 = load i32, ptr %31, align 4, !tbaa !19
  %33 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) %29, i32 noundef %32)
  %34 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %33, ptr noundef @.str.2)
  %35 = load ptr, ptr %5, align 8, !tbaa !5
  %36 = getelementptr inbounds %class.EdgeNode, ptr %35, i32 0, i32 2
  %37 = load float, ptr %36, align 8, !tbaa !21
  %38 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEf(ptr noundef nonnull align 8 dereferenceable(8) %34, float noundef %37)
  %39 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_c(ptr noundef nonnull align 8 dereferenceable(8) %38, i8 noundef signext 41)
  %40 = load ptr, ptr %5, align 8, !tbaa !5
  %41 = getelementptr inbounds %class.EdgeNode, ptr %40, i32 0, i32 3
  %42 = load ptr, ptr %41, align 8, !tbaa !22
  store ptr %42, ptr %5, align 8, !tbaa !5
  br label %25, !llvm.loop !23

43:                                               ; preds = %25
  %44 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_c(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cerr, i8 noundef signext 10)
  %45 = load ptr, ptr %3, align 8, !tbaa !5
  %46 = getelementptr inbounds %class.VertexNode, ptr %45, i32 0, i32 5
  %47 = load ptr, ptr %46, align 8, !tbaa !25
  store ptr %47, ptr %3, align 8, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #4
  br label %48

48:                                               ; preds = %43
  %49 = load i32, ptr %4, align 4, !tbaa !12
  %50 = add nsw i32 %49, 1
  store i32 %50, ptr %4, align 4, !tbaa !12
  br label %9, !llvm.loop !26

51:                                               ; preds = %14
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #4
  ret void
}

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_c(ptr noundef nonnull align 8 dereferenceable(8), i8 noundef signext) #2

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) #2

declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) #3

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEf(ptr noundef nonnull align 8 dereferenceable(8), float noundef) #1 align 2

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #2 = { inlinehint 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 = { "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, !6, i64 0}
!10 = !{!"_ZTS7WDGraph", !6, i64 0, !11, i64 8, !6, i64 16}
!11 = !{!"int", !7, i64 0}
!12 = !{!11, !11, i64 0}
!13 = !{!10, !11, i64 8}
!14 = !{!15, !11, i64 0}
!15 = !{!"_ZTS10VertexNode", !11, i64 0, !16, i64 4, !11, i64 8, !17, i64 12, !6, i64 16, !6, i64 24, !6, i64 32}
!16 = !{!"float", !7, i64 0}
!17 = !{!"bool", !7, i64 0}
!18 = !{!15, !6, i64 32}
!19 = !{!20, !11, i64 4}
!20 = !{!"_ZTS8EdgeNode", !11, i64 0, !11, i64 4, !16, i64 8, !6, i64 16}
!21 = !{!20, !16, i64 8}
!22 = !{!20, !6, i64 16}
!23 = distinct !{!23, !24}
!24 = !{!"llvm.loop.mustprogress"}
!25 = !{!15, !6, i64 24}
!26 = distinct !{!26, !24}


; 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::basic_ostream" = type { ptr, %"class.std::basic_ios" }
%"class.std::basic_ios" = type { %"class.std::ios_base", ptr, i8, i8, ptr, ptr, ptr, ptr }
%"class.std::ios_base" = type { ptr, i64, i64, i32, i32, i32, ptr, %"struct.std::ios_base::_Words", [8 x %"struct.std::ios_base::_Words"], i32, ptr, %"class.std::locale" }
%"struct.std::ios_base::_Words" = type { ptr, i64 }
%"class.std::locale" = type { ptr }

@_ZSt4cerr = external global %"class.std::basic_ostream", align 8
@.str = external hidden unnamed_addr constant [20 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [5 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [3 x i8], align 1

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN7WDGraph10printGraphEv(ptr nocapture noundef nonnull readonly align 8 dereferenceable(24) %0) local_unnamed_addr #0 align 2 {
  %2 = getelementptr inbounds i8, ptr %0, i64 8
  %3 = load i32, ptr %2, align 8, !tbaa !5
  %4 = icmp sgt i32 %3, 0
  br i1 %4, label %.lr.ph18, label %._crit_edge19

._crit_edge19:                                    ; preds = %._crit_edge, %1
  ret void

.lr.ph18:                                         ; preds = %1, %._crit_edge
  %.01016.in = phi ptr [ %21, %._crit_edge ], [ %0, %1 ]
  %.0915 = phi i32 [ %22, %._crit_edge ], [ 0, %1 ]
  %.01016 = load ptr, ptr %.01016.in, align 8, !tbaa !11
  %5 = tail call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cerr, ptr noundef nonnull @.str)
  %6 = load i32, ptr %.01016, align 8, !tbaa !12
  %7 = tail call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) %5, i32 noundef %6)
  %8 = tail call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_c(ptr noundef nonnull align 8 dereferenceable(8) %7, i8 noundef signext 10)
  %9 = getelementptr inbounds i8, ptr %.01016, i64 32
  %.011 = load ptr, ptr %9, align 8, !tbaa !11
  %.not12 = icmp eq ptr %.011, null
  br i1 %.not12, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %.lr.ph18, %.lr.ph
  %.013 = phi ptr [ %.0, %.lr.ph ], [ %.011, %.lr.ph18 ]
  %10 = tail call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cerr, ptr noundef nonnull @.str.1)
  %11 = getelementptr inbounds i8, ptr %.013, i64 4
  %12 = load i32, ptr %11, align 4, !tbaa !16
  %13 = tail call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) %10, i32 noundef %12)
  %14 = tail call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %13, ptr noundef nonnull @.str.2)
  %15 = getelementptr inbounds i8, ptr %.013, i64 8
  %16 = load float, ptr %15, align 8, !tbaa !18
  %17 = tail call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEf(ptr noundef nonnull align 8 dereferenceable(8) %14, float noundef %16)
  %18 = tail call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_c(ptr noundef nonnull align 8 dereferenceable(8) %17, i8 noundef signext 41)
  %19 = getelementptr inbounds i8, ptr %.013, i64 16
  %.0 = load ptr, ptr %19, align 8, !tbaa !11
  %.not = icmp eq ptr %.0, null
  br i1 %.not, label %._crit_edge, label %.lr.ph, !llvm.loop !19

._crit_edge:                                      ; preds = %.lr.ph, %.lr.ph18
  %20 = tail call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_c(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cerr, i8 noundef signext 10)
  %21 = getelementptr inbounds i8, ptr %.01016, i64 24
  %22 = add nuw nsw i32 %.0915, 1
  %23 = load i32, ptr %2, align 8, !tbaa !5
  %24 = icmp slt i32 %22, %23
  br i1 %24, label %.lr.ph18, label %._crit_edge19, !llvm.loop !21
}

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_c(ptr noundef nonnull align 8 dereferenceable(8), i8 noundef signext) local_unnamed_addr #1

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) local_unnamed_addr #1

declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) local_unnamed_addr #2

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEf(ptr noundef nonnull align 8 dereferenceable(8), float noundef) local_unnamed_addr #0 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 = { inlinehint 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 #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" }

!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, !10, i64 8}
!6 = !{!"_ZTS7WDGraph", !7, i64 0, !10, i64 8, !7, i64 16}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!"int", !8, i64 0}
!11 = !{!7, !7, i64 0}
!12 = !{!13, !10, i64 0}
!13 = !{!"_ZTS10VertexNode", !10, i64 0, !14, i64 4, !10, i64 8, !15, i64 12, !7, i64 16, !7, i64 24, !7, i64 32}
!14 = !{!"float", !8, i64 0}
!15 = !{!"bool", !8, i64 0}
!16 = !{!17, !10, i64 4}
!17 = !{!"_ZTS8EdgeNode", !10, i64 0, !10, i64 4, !14, i64 8, !7, i64 16}
!18 = !{!17, !14, i64 8}
!19 = distinct !{!19, !20}
!20 = !{!"llvm.loop.mustprogress"}
!21 = distinct !{!21, !20}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LICMPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass