; LLVM IR from HarshCasper/NeoAlgo :: C-Plus-Plus/cp/Mean_after_removing_Kth_smallest_and_largest_elements.ll (Z5solvePiii)

; 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 }
%"struct.std::_Setprecision" = type { i32 }

@_ZSt4cout = external global %"class.std::basic_ostream", align 8

; Function Attrs: mustprogress uwtable
define dso_local void @_Z5solvePiii(ptr noundef %0, i32 noundef %1, i32 noundef %2) #0 {
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  %8 = alloca float, align 4
  %9 = alloca i32, align 4
  %10 = alloca float, align 4
  %11 = alloca %"struct.std::_Setprecision", align 4
  store ptr %0, ptr %4, align 8, !tbaa !5
  store i32 %1, ptr %5, align 4, !tbaa !9
  store i32 %2, ptr %6, align 4, !tbaa !9
  %12 = load ptr, ptr %4, align 8, !tbaa !5
  %13 = load ptr, ptr %4, align 8, !tbaa !5
  %14 = load i32, ptr %5, align 4, !tbaa !9
  %15 = sext i32 %14 to i64
  %16 = getelementptr inbounds i32, ptr %13, i64 %15
  call void @_ZSt4sortIPiEvT_S1_(ptr noundef %12, ptr noundef %16)
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #4
  %17 = load i32, ptr %5, align 4, !tbaa !9
  %18 = load i32, ptr %6, align 4, !tbaa !9
  %19 = mul nsw i32 %17, %18
  %20 = sdiv i32 %19, 100
  store i32 %20, ptr %7, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #4
  store float 0.000000e+00, ptr %8, align 4, !tbaa !11
  call void @llvm.lifetime.start.p0(i64 4, ptr %9) #4
  store i32 0, ptr %9, align 4, !tbaa !9
  br label %21

21:                                               ; preds = %46, %3
  %22 = load i32, ptr %9, align 4, !tbaa !9
  %23 = load i32, ptr %5, align 4, !tbaa !9
  %24 = icmp slt i32 %22, %23
  br i1 %24, label %26, label %25

25:                                               ; preds = %21
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #4
  br label %49

26:                                               ; preds = %21
  %27 = load i32, ptr %9, align 4, !tbaa !9
  %28 = load i32, ptr %7, align 4, !tbaa !9
  %29 = icmp sge i32 %27, %28
  br i1 %29, label %30, label %45

30:                                               ; preds = %26
  %31 = load i32, ptr %9, align 4, !tbaa !9
  %32 = load i32, ptr %5, align 4, !tbaa !9
  %33 = load i32, ptr %7, align 4, !tbaa !9
  %34 = sub nsw i32 %32, %33
  %35 = icmp slt i32 %31, %34
  br i1 %35, label %36, label %45

36:                                               ; preds = %30
  %37 = load float, ptr %8, align 4, !tbaa !11
  %38 = load ptr, ptr %4, align 8, !tbaa !5
  %39 = load i32, ptr %9, align 4, !tbaa !9
  %40 = sext i32 %39 to i64
  %41 = getelementptr inbounds i32, ptr %38, i64 %40
  %42 = load i32, ptr %41, align 4, !tbaa !9
  %43 = sitofp i32 %42 to float
  %44 = fadd float %37, %43
  store float %44, ptr %8, align 4, !tbaa !11
  br label %45

45:                                               ; preds = %36, %30, %26
  br label %46

46:                                               ; preds = %45
  %47 = load i32, ptr %9, align 4, !tbaa !9
  %48 = add nsw i32 %47, 1
  store i32 %48, ptr %9, align 4, !tbaa !9
  br label %21, !llvm.loop !13

49:                                               ; preds = %25
  call void @llvm.lifetime.start.p0(i64 4, ptr %10) #4
  %50 = load float, ptr %8, align 4, !tbaa !11
  %51 = load i32, ptr %5, align 4, !tbaa !9
  %52 = load i32, ptr %7, align 4, !tbaa !9
  %53 = mul nsw i32 2, %52
  %54 = sub nsw i32 %51, %53
  %55 = sitofp i32 %54 to float
  %56 = fdiv float %50, %55
  store float %56, ptr %10, align 4, !tbaa !11
  %57 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSt8ios_baseS0_E(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef @_ZSt5fixedRSt8ios_base)
  %58 = call i32 @_ZSt12setprecisioni(i32 noundef 3)
  %59 = getelementptr inbounds %"struct.std::_Setprecision", ptr %11, i32 0, i32 0
  store i32 %58, ptr %59, align 4
  %60 = getelementptr inbounds %"struct.std::_Setprecision", ptr %11, i32 0, i32 0
  %61 = load i32, ptr %60, align 4
  %62 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_St13_Setprecision(ptr noundef nonnull align 8 dereferenceable(8) %57, i32 %61)
  %63 = load float, ptr %10, align 4, !tbaa !11
  %64 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEf(ptr noundef nonnull align 8 dereferenceable(8) %62, float noundef %63)
  %65 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %64, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
  call void @llvm.lifetime.end.p0(i64 4, ptr %10) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #4
  ret void
}

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZSt4sortIPiEvT_S1_(ptr noundef, ptr noundef) #1

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #2

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_St13_Setprecision(ptr noundef nonnull align 8 dereferenceable(8), i32) #1

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSt8ios_baseS0_E(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) #0 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local noundef nonnull align 8 dereferenceable(216) ptr @_ZSt5fixedRSt8ios_base(ptr noundef nonnull align 8 dereferenceable(216)) #1

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local i32 @_ZSt12setprecisioni(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) #0 align 2

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

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_(ptr noundef nonnull align 8 dereferenceable(8)) #1

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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = !{!"int", !7, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"float", !7, i64 0}
!13 = distinct !{!13, !14}
!14 = !{!"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::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 }

@_ZSt4cout = external global %"class.std::basic_ostream", align 8

; Function Attrs: mustprogress uwtable
define dso_local void @_Z5solvePiii(ptr noundef %0, i32 noundef %1, i32 noundef %2) local_unnamed_addr #0 {
  %4 = sext i32 %1 to i64
  %5 = getelementptr inbounds i32, ptr %0, i64 %4
  tail call void @_ZSt4sortIPiEvT_S1_(ptr noundef %0, ptr noundef %5)
  %6 = mul nsw i32 %2, %1
  %7 = sdiv i32 %6, 100
  %8 = icmp sgt i32 %1, 0
  br i1 %8, label %.lr.ph, label %._crit_edge

.lr.ph:                                           ; preds = %3
  %9 = sub nsw i32 %1, %7
  %10 = sext i32 %9 to i64
  %11 = sext i32 %7 to i64
  %wide.trip.count = zext nneg i32 %1 to i64
  %xtraiter = and i64 %wide.trip.count, 1
  %12 = icmp eq i32 %1, 1
  br i1 %12, label %._crit_edge.loopexit.unr-lcssa, label %.lr.ph.new

.lr.ph.new:                                       ; preds = %.lr.ph
  %unroll_iter = and i64 %wide.trip.count, 2147483646
  br label %28

._crit_edge.loopexit.unr-lcssa:                   ; preds = %42, %.lr.ph
  %.1.lcssa.ph = phi float [ poison, %.lr.ph ], [ %.1.1, %42 ]
  %indvars.iv.unr = phi i64 [ 0, %.lr.ph ], [ %indvars.iv.next.1, %42 ]
  %.025.unr = phi float [ 0.000000e+00, %.lr.ph ], [ %.1.1, %42 ]
  %lcmp.mod.not = icmp eq i64 %xtraiter, 0
  br i1 %lcmp.mod.not, label %._crit_edge, label %.epil.preheader

.epil.preheader:                                  ; preds = %._crit_edge.loopexit.unr-lcssa
  %.not.epil = icmp sge i64 %indvars.iv.unr, %11
  %13 = icmp slt i64 %indvars.iv.unr, %10
  %or.cond.epil = select i1 %.not.epil, i1 %13, i1 false
  br i1 %or.cond.epil, label %14, label %._crit_edge

14:                                               ; preds = %.epil.preheader
  %15 = getelementptr inbounds i32, ptr %0, i64 %indvars.iv.unr
  %16 = load i32, ptr %15, align 4, !tbaa !5
  %17 = sitofp i32 %16 to float
  %18 = fadd float %.025.unr, %17
  br label %._crit_edge

._crit_edge:                                      ; preds = %._crit_edge.loopexit.unr-lcssa, %14, %.epil.preheader, %3
  %.0.lcssa = phi float [ 0.000000e+00, %3 ], [ %.1.lcssa.ph, %._crit_edge.loopexit.unr-lcssa ], [ %18, %14 ], [ %.025.unr, %.epil.preheader ]
  %19 = shl nsw i32 %7, 1
  %20 = sub nsw i32 %1, %19
  %21 = sitofp i32 %20 to float
  %22 = fdiv float %.0.lcssa, %21
  %23 = tail call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSt8ios_baseS0_E(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef nonnull @_ZSt5fixedRSt8ios_base)
  %24 = tail call i32 @_ZSt12setprecisioni(i32 noundef 3)
  %25 = tail call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_St13_Setprecision(ptr noundef nonnull align 8 dereferenceable(8) %23, i32 %24)
  %26 = tail call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEf(ptr noundef nonnull align 8 dereferenceable(8) %25, float noundef %22)
  %27 = tail call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %26, ptr noundef nonnull @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
  ret void

28:                                               ; preds = %42, %.lr.ph.new
  %indvars.iv = phi i64 [ 0, %.lr.ph.new ], [ %indvars.iv.next.1, %42 ]
  %.025 = phi float [ 0.000000e+00, %.lr.ph.new ], [ %.1.1, %42 ]
  %niter = phi i64 [ 0, %.lr.ph.new ], [ %niter.next.1, %42 ]
  %.not = icmp sge i64 %indvars.iv, %11
  %29 = icmp slt i64 %indvars.iv, %10
  %or.cond = select i1 %.not, i1 %29, i1 false
  br i1 %or.cond, label %30, label %35

30:                                               ; preds = %28
  %31 = getelementptr inbounds i32, ptr %0, i64 %indvars.iv
  %32 = load i32, ptr %31, align 4, !tbaa !5
  %33 = sitofp i32 %32 to float
  %34 = fadd float %.025, %33
  br label %35

35:                                               ; preds = %28, %30
  %.1 = phi float [ %34, %30 ], [ %.025, %28 ]
  %indvars.iv.next = or disjoint i64 %indvars.iv, 1
  %.not.1 = icmp sge i64 %indvars.iv.next, %11
  %36 = icmp slt i64 %indvars.iv.next, %10
  %or.cond.1 = select i1 %.not.1, i1 %36, i1 false
  br i1 %or.cond.1, label %37, label %42

37:                                               ; preds = %35
  %38 = getelementptr inbounds i32, ptr %0, i64 %indvars.iv.next
  %39 = load i32, ptr %38, align 4, !tbaa !5
  %40 = sitofp i32 %39 to float
  %41 = fadd float %.1, %40
  br label %42

42:                                               ; preds = %37, %35
  %.1.1 = phi float [ %41, %37 ], [ %.1, %35 ]
  %indvars.iv.next.1 = add nuw nsw i64 %indvars.iv, 2
  %niter.next.1 = add i64 %niter, 2
  %niter.ncmp.1 = icmp eq i64 %niter.next.1, %unroll_iter
  br i1 %niter.ncmp.1, label %._crit_edge.loopexit.unr-lcssa, label %28, !llvm.loop !9
}

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZSt4sortIPiEvT_S1_(ptr noundef, ptr noundef) local_unnamed_addr #1

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_St13_Setprecision(ptr noundef nonnull align 8 dereferenceable(8), i32) local_unnamed_addr #1

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSt8ios_baseS0_E(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) local_unnamed_addr #0 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local noundef nonnull align 8 dereferenceable(216) ptr @_ZSt5fixedRSt8ios_base(ptr noundef nonnull align 8 dereferenceable(216)) #1

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local i32 @_ZSt12setprecisioni(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

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

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_(ptr noundef nonnull align 8 dereferenceable(8)) #1

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 = { 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" }

!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: GVNPass,GlobalOptPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,JumpThreadingPass,LCSSAPass,LICMPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,ReassociatePass,SROAPass,SimplifyCFGPass,TailCallElimPass