; LLVM IR from lzyrapx/Competitive-Programming :: Codeforces/Math/1257G.ll (Z3dot4polyS_)

; 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"

%struct.poly = type <{ %"class.std::vector", i32, [4 x i8] }>
%"class.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" = type { ptr, ptr, ptr }

; 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
declare dso_local void @_ZN4polyC2Ev(ptr noundef nonnull align 8 dereferenceable(28)) unnamed_addr #1 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEE6resizeEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #1 align 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) #2 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZN4polyD2Ev(ptr noundef nonnull align 8 dereferenceable(28)) unnamed_addr #3 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3minIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) #3

; Function Attrs: mustprogress uwtable
define dso_local void @_Z3dot4polyS_(ptr dead_on_unwind noalias writable sret(%struct.poly) align 8 %0, ptr noundef %1, ptr noundef %2) #1 personality ptr @__gxx_personality_v0 {
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca i32, align 4
  %8 = alloca i1, align 1
  %9 = alloca ptr, align 8
  %10 = alloca i32, align 4
  store ptr %0, ptr %4, align 8
  store ptr %1, ptr %5, align 8, !tbaa !5
  store ptr %2, ptr %6, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #4
  store i1 false, ptr %8, align 1
  call void @_ZN4polyC2Ev(ptr noundef nonnull align 8 dereferenceable(28) %0)
  %11 = getelementptr inbounds %struct.poly, ptr %1, i32 0, i32 1
  %12 = getelementptr inbounds %struct.poly, ptr %2, i32 0, i32 1
  %13 = invoke noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3minIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4) %11, ptr noundef nonnull align 4 dereferenceable(4) %12)
          to label %14 unwind label %52

14:                                               ; preds = %3
  %15 = load i32, ptr %13, align 4, !tbaa !9
  %16 = getelementptr inbounds %struct.poly, ptr %0, i32 0, i32 1
  store i32 %15, ptr %16, align 8, !tbaa !11
  %17 = getelementptr inbounds %struct.poly, ptr %0, i32 0, i32 0
  %18 = getelementptr inbounds %struct.poly, ptr %0, i32 0, i32 1
  %19 = load i32, ptr %18, align 8, !tbaa !11
  %20 = add nsw i32 %19, 1
  %21 = sext i32 %20 to i64
  invoke void @_ZNSt6vectorIiSaIiEE6resizeEm(ptr noundef nonnull align 8 dereferenceable(24) %17, i64 noundef %21)
          to label %22 unwind label %52

22:                                               ; preds = %14
  store i32 0, ptr %7, align 4, !tbaa !9
  br label %23

23:                                               ; preds = %49, %22
  %24 = load i32, ptr %7, align 4, !tbaa !9
  %25 = getelementptr inbounds %struct.poly, ptr %0, i32 0, i32 1
  %26 = load i32, ptr %25, align 8, !tbaa !11
  %27 = icmp sle i32 %24, %26
  br i1 %27, label %28, label %56

28:                                               ; preds = %23
  %29 = getelementptr inbounds %struct.poly, ptr %1, i32 0, i32 0
  %30 = load i32, ptr %7, align 4, !tbaa !9
  %31 = sext i32 %30 to i64
  %32 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %29, i64 noundef %31) #4
  %33 = load i32, ptr %32, align 4, !tbaa !9
  %34 = sext i32 %33 to i64
  %35 = mul nsw i64 1, %34
  %36 = getelementptr inbounds %struct.poly, ptr %2, i32 0, i32 0
  %37 = load i32, ptr %7, align 4, !tbaa !9
  %38 = sext i32 %37 to i64
  %39 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %36, i64 noundef %38) #4
  %40 = load i32, ptr %39, align 4, !tbaa !9
  %41 = sext i32 %40 to i64
  %42 = mul nsw i64 %35, %41
  %43 = srem i64 %42, 998244353
  %44 = trunc i64 %43 to i32
  %45 = getelementptr inbounds %struct.poly, ptr %0, i32 0, i32 0
  %46 = load i32, ptr %7, align 4, !tbaa !9
  %47 = sext i32 %46 to i64
  %48 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %45, i64 noundef %47) #4
  store i32 %44, ptr %48, align 4, !tbaa !9
  br label %49

49:                                               ; preds = %28
  %50 = load i32, ptr %7, align 4, !tbaa !9
  %51 = add nsw i32 %50, 1
  store i32 %51, ptr %7, align 4, !tbaa !9
  br label %23, !llvm.loop !17

52:                                               ; preds = %14, %3
  %53 = landingpad { ptr, i32 }
          cleanup
  %54 = extractvalue { ptr, i32 } %53, 0
  store ptr %54, ptr %9, align 8
  %55 = extractvalue { ptr, i32 } %53, 1
  store i32 %55, ptr %10, align 4
  call void @_ZN4polyD2Ev(ptr noundef nonnull align 8 dereferenceable(28) %0) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #4
  br label %60

56:                                               ; preds = %23
  store i1 true, ptr %8, align 1
  %57 = load i1, ptr %8, align 1
  br i1 %57, label %59, label %58

58:                                               ; preds = %56
  call void @_ZN4polyD2Ev(ptr noundef nonnull align 8 dereferenceable(28) %0) #4
  br label %59

59:                                               ; preds = %58, %56
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #4
  ret void

60:                                               ; preds = %52
  %61 = load ptr, ptr %9, align 8
  %62 = load i32, ptr %10, align 4
  %63 = insertvalue { ptr, i32 } poison, ptr %61, 0
  %64 = insertvalue { ptr, i32 } %63, i32 %62, 1
  resume { ptr, i32 } %64
}

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 = { 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 = !{!"int", !7, i64 0}
!11 = !{!12, !10, i64 24}
!12 = !{!"_ZTS4poly", !13, i64 0, !10, i64 24}
!13 = !{!"_ZTSSt6vectorIiSaIiEE", !14, i64 0}
!14 = !{!"_ZTSSt12_Vector_baseIiSaIiEE", !15, i64 0}
!15 = !{!"_ZTSNSt12_Vector_baseIiSaIiEE12_Vector_implE", !16, i64 0}
!16 = !{!"_ZTSNSt12_Vector_baseIiSaIiEE17_Vector_impl_dataE", !6, i64 0, !6, i64 8, !6, i64 16}
!17 = distinct !{!17, !18}
!18 = !{!"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"

%struct.poly = type <{ %"class.std::vector", i32, [4 x i8] }>
%"class.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" = type { ptr, ptr, ptr }

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN4polyC2Ev(ptr noundef nonnull align 8 dereferenceable(28)) unnamed_addr #0 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEE6resizeEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #0 align 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 #1 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZN4polyD2Ev(ptr noundef nonnull align 8 dereferenceable(28)) unnamed_addr #2 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3minIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #2

; Function Attrs: mustprogress uwtable
define dso_local void @_Z3dot4polyS_(ptr dead_on_unwind noalias nonnull writable sret(%struct.poly) align 8 %0, ptr noundef %1, ptr noundef %2) local_unnamed_addr #0 personality ptr @__gxx_personality_v0 {
  tail call void @_ZN4polyC2Ev(ptr noundef nonnull align 8 dereferenceable(28) %0)
  %4 = getelementptr inbounds i8, ptr %1, i64 24
  %5 = getelementptr inbounds i8, ptr %2, i64 24
  %6 = tail call noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3minIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4) %4, ptr noundef nonnull align 4 dereferenceable(4) %5)
  %7 = load i32, ptr %6, align 4, !tbaa !5
  %8 = getelementptr inbounds i8, ptr %0, i64 24
  store i32 %7, ptr %8, align 8, !tbaa !9
  %9 = add nsw i32 %7, 1
  %10 = sext i32 %9 to i64
  invoke void @_ZNSt6vectorIiSaIiEE6resizeEm(ptr noundef nonnull align 8 dereferenceable(24) %0, i64 noundef %10)
          to label %.preheader unwind label %24

.preheader:                                       ; preds = %3
  %11 = load i32, ptr %8, align 8, !tbaa !9
  %.not7 = icmp slt i32 %11, 0
  br i1 %.not7, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %.preheader, %.lr.ph
  %indvars.iv = phi i64 [ %indvars.iv.next, %.lr.ph ], [ 0, %.preheader ]
  %12 = tail call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %1, i64 noundef %indvars.iv) #3
  %13 = load i32, ptr %12, align 4, !tbaa !5
  %14 = sext i32 %13 to i64
  %15 = tail call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %2, i64 noundef %indvars.iv) #3
  %16 = load i32, ptr %15, align 4, !tbaa !5
  %17 = sext i32 %16 to i64
  %18 = mul nsw i64 %17, %14
  %19 = srem i64 %18, 998244353
  %20 = trunc nsw i64 %19 to i32
  %21 = tail call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %0, i64 noundef %indvars.iv) #3
  store i32 %20, ptr %21, align 4, !tbaa !5
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %22 = load i32, ptr %8, align 8, !tbaa !9
  %23 = sext i32 %22 to i64
  %.not.not = icmp slt i64 %indvars.iv, %23
  br i1 %.not.not, label %.lr.ph, label %._crit_edge, !llvm.loop !16

24:                                               ; preds = %3
  %25 = landingpad { ptr, i32 }
          cleanup
  tail call void @_ZN4polyD2Ev(ptr noundef nonnull align 8 dereferenceable(28) %0) #3
  resume { ptr, i32 } %25

._crit_edge:                                      ; preds = %.lr.ph, %.preheader
  ret void
}

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 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 = { 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 #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 = !{!10, !6, i64 24}
!10 = !{!"_ZTS4poly", !11, i64 0, !6, i64 24}
!11 = !{!"_ZTSSt6vectorIiSaIiEE", !12, i64 0}
!12 = !{!"_ZTSSt12_Vector_baseIiSaIiEE", !13, i64 0}
!13 = !{!"_ZTSNSt12_Vector_baseIiSaIiEE12_Vector_implE", !14, i64 0}
!14 = !{!"_ZTSNSt12_Vector_baseIiSaIiEE17_Vector_impl_dataE", !15, i64 0, !15, i64 8, !15, i64 16}
!15 = !{!"any pointer", !7, i64 0}
!16 = distinct !{!16, !17}
!17 = !{!"llvm.loop.mustprogress"}


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