; LLVM IR from Tunghohin/Competitive_Coding :: Nowcoder/21791_F.ll (Z5solvev)

; 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_istream" = type { ptr, i64, %"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.std::basic_ostream" = type { ptr, %"class.std::basic_ios" }

@_ZSt3cin = external global %"class.std::basic_istream", align 8
@_ZSt4cout = external global %"class.std::basic_ostream", align 8

; 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 nounwind uwtable
declare dso_local noundef i32 @_Z1Cii(i32 noundef, i32 noundef) #1

; Function Attrs: mustprogress uwtable
define dso_local void @_Z5solvev() #2 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  %6 = alloca i8, align 1
  %7 = alloca i64, align 8
  call void @llvm.lifetime.start.p0(i64 4, ptr %1) #5
  call void @llvm.lifetime.start.p0(i64 4, ptr %2) #5
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #5
  %8 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %1)
  %9 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %8, ptr noundef nonnull align 4 dereferenceable(4) %2)
  %10 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %9, ptr noundef nonnull align 4 dereferenceable(4) %3)
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #5
  store i32 0, ptr %4, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #5
  store i32 0, ptr %5, align 4, !tbaa !5
  br label %11

11:                                               ; preds = %57, %0
  %12 = load i32, ptr %5, align 4, !tbaa !5
  %13 = load i32, ptr %3, align 4, !tbaa !5
  %14 = icmp sle i32 %12, %13
  br i1 %14, label %16, label %15

15:                                               ; preds = %11
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #5
  br label %60

16:                                               ; preds = %11
  call void @llvm.lifetime.start.p0(i64 1, ptr %6) #5
  store i8 1, ptr %6, align 1, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #5
  %17 = load i32, ptr %5, align 4, !tbaa !5
  %18 = load i32, ptr %1, align 4, !tbaa !5
  %19 = mul nsw i32 %17, %18
  %20 = load i32, ptr %3, align 4, !tbaa !5
  %21 = load i32, ptr %5, align 4, !tbaa !5
  %22 = sub nsw i32 %20, %21
  %23 = load i32, ptr %2, align 4, !tbaa !5
  %24 = mul nsw i32 %22, %23
  %25 = add nsw i32 %19, %24
  %26 = sext i32 %25 to i64
  store i64 %26, ptr %7, align 8, !tbaa !11
  br label %27

27:                                               ; preds = %43, %16
  %28 = load i64, ptr %7, align 8, !tbaa !11
  %29 = icmp ne i64 %28, 0
  br i1 %29, label %30, label %46

30:                                               ; preds = %27
  %31 = load i64, ptr %7, align 8, !tbaa !11
  %32 = srem i64 %31, 10
  %33 = load i32, ptr %1, align 4, !tbaa !5
  %34 = sext i32 %33 to i64
  %35 = icmp ne i64 %32, %34
  br i1 %35, label %36, label %43

36:                                               ; preds = %30
  %37 = load i64, ptr %7, align 8, !tbaa !11
  %38 = srem i64 %37, 10
  %39 = load i32, ptr %2, align 4, !tbaa !5
  %40 = sext i32 %39 to i64
  %41 = icmp ne i64 %38, %40
  br i1 %41, label %42, label %43

42:                                               ; preds = %36
  store i8 0, ptr %6, align 1, !tbaa !9
  br label %46

43:                                               ; preds = %36, %30
  %44 = load i64, ptr %7, align 8, !tbaa !11
  %45 = sdiv i64 %44, 10
  store i64 %45, ptr %7, align 8, !tbaa !11
  br label %27, !llvm.loop !13

46:                                               ; preds = %42, %27
  %47 = load i8, ptr %6, align 1, !tbaa !9, !range !15, !noundef !16
  %48 = trunc i8 %47 to i1
  br i1 %48, label %49, label %56

49:                                               ; preds = %46
  %50 = load i32, ptr %4, align 4, !tbaa !5
  %51 = load i32, ptr %3, align 4, !tbaa !5
  %52 = load i32, ptr %5, align 4, !tbaa !5
  %53 = call noundef i32 @_Z1Cii(i32 noundef %51, i32 noundef %52)
  %54 = add nsw i32 %50, %53
  %55 = srem i32 %54, 1000000007
  store i32 %55, ptr %4, align 4, !tbaa !5
  br label %56

56:                                               ; preds = %49, %46
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #5
  call void @llvm.lifetime.end.p0(i64 1, ptr %6) #5
  br label %57

57:                                               ; preds = %56
  %58 = load i32, ptr %5, align 4, !tbaa !5
  %59 = add nsw i32 %58, 1
  store i32 %59, ptr %5, align 4, !tbaa !5
  br label %11, !llvm.loop !17

60:                                               ; preds = %15
  %61 = load i32, ptr %4, align 4, !tbaa !5
  %62 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %61)
  %63 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_c(ptr noundef nonnull align 8 dereferenceable(8) %62, i8 noundef signext 10)
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr %1) #5
  ret void
}

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 4 dereferenceable(4)) #3

; 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) #4

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

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #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 = { "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 = { 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 #5 = { 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 = !{!10, !10, i64 0}
!10 = !{!"bool", !7, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"long long", !7, i64 0}
!13 = distinct !{!13, !14}
!14 = !{!"llvm.loop.mustprogress"}
!15 = !{i8 0, i8 2}
!16 = !{}
!17 = distinct !{!17, !14}


; 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_istream" = type { ptr, i64, %"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.std::basic_ostream" = type { ptr, %"class.std::basic_ios" }

@_ZSt3cin = external global %"class.std::basic_istream", align 8
@_ZSt4cout = external global %"class.std::basic_ostream", align 8

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

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i32 @_Z1Cii(i32 noundef, i32 noundef) local_unnamed_addr #1

; Function Attrs: mustprogress uwtable
define dso_local void @_Z5solvev() local_unnamed_addr #2 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  %3 = alloca i32, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %1) #5
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %2) #5
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %3) #5
  %4 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %1)
  %5 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %4, ptr noundef nonnull align 4 dereferenceable(4) %2)
  %6 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %5, ptr noundef nonnull align 4 dereferenceable(4) %3)
  %7 = load i32, ptr %3, align 4, !tbaa !5
  %.not23 = icmp slt i32 %7, 0
  br i1 %.not23, label %._crit_edge, label %.lr.ph26

._crit_edge:                                      ; preds = %.loopexit, %0
  %.014.lcssa = phi i32 [ 0, %0 ], [ %.1, %.loopexit ]
  %8 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %.014.lcssa)
  %9 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_c(ptr noundef nonnull align 8 dereferenceable(8) %8, i8 noundef signext 10)
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %3) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %2) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %1) #5
  ret void

.lr.ph26:                                         ; preds = %0, %.loopexit
  %10 = phi i32 [ %27, %.loopexit ], [ %7, %0 ]
  %.01325 = phi i32 [ %28, %.loopexit ], [ 0, %0 ]
  %.01424 = phi i32 [ %.1, %.loopexit ], [ 0, %0 ]
  %11 = load i32, ptr %1, align 4, !tbaa !5
  %12 = mul nsw i32 %11, %.01325
  %13 = sub nsw i32 %10, %.01325
  %14 = load i32, ptr %2, align 4
  %15 = mul nsw i32 %14, %13
  %16 = add nsw i32 %15, %12
  %.not1721 = icmp eq i32 %16, 0
  br i1 %.not1721, label %.critedge, label %.lr.ph

.lr.ph:                                           ; preds = %.lr.ph26
  %17 = sext i32 %16 to i64
  %18 = sext i32 %11 to i64
  %19 = sext i32 %14 to i64
  br label %20

20:                                               ; preds = %.lr.ph, %23
  %.022 = phi i64 [ %17, %.lr.ph ], [ %22, %23 ]
  %21 = srem i64 %.022, 10
  %22 = sdiv i64 %.022, 10
  %.not18 = icmp eq i64 %21, %18
  %.not19 = icmp eq i64 %21, %19
  %or.cond = or i1 %.not18, %.not19
  br i1 %or.cond, label %23, label %.loopexit

23:                                               ; preds = %20
  %.022.off = add nsw i64 %.022, 9
  %.not17 = icmp ult i64 %.022.off, 19
  br i1 %.not17, label %.critedge, label %20, !llvm.loop !9

.critedge:                                        ; preds = %23, %.lr.ph26
  %24 = call noundef i32 @_Z1Cii(i32 noundef %10, i32 noundef %.01325)
  %25 = add nsw i32 %24, %.01424
  %26 = srem i32 %25, 1000000007
  %.pre = load i32, ptr %3, align 4, !tbaa !5
  br label %.loopexit

.loopexit:                                        ; preds = %20, %.critedge
  %27 = phi i32 [ %.pre, %.critedge ], [ %10, %20 ]
  %.1 = phi i32 [ %26, %.critedge ], [ %.01424, %20 ]
  %28 = add nuw nsw i32 %.01325, 1
  %.not.not = icmp slt i32 %.01325, %27
  br i1 %.not.not, label %.lr.ph26, label %._crit_edge, !llvm.loop !11
}

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #3

; 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 #4

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

attributes #0 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #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 = { "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 = { 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 #5 = { 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"}
!11 = distinct !{!11, !10}


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