; LLVM IR from kazunetakahashi/atcoder :: 201510_201609/1014_KUPC_2013/F.ll (Z4calci)

; 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::tuple" = type { %"struct.std::_Tuple_impl" }
%"struct.std::_Tuple_impl" = type { %"struct.std::_Tuple_impl.0", %"struct.std::_Head_base.1" }
%"struct.std::_Tuple_impl.0" = type { %"struct.std::_Head_base" }
%"struct.std::_Head_base" = type { i32 }
%"struct.std::_Head_base.1" = type { i32 }

@n = external dso_local global i32, align 4
@T = external dso_local global [510 x %"class.std::tuple"], align 16
@memo = external dso_local global [510 x i32], align 16
@W = external dso_local global [510 x [510 x i32]], align 16

; Function Attrs: mustprogress uwtable
define dso_local noundef i32 @_Z4calci(i32 noundef %0) #0 {
  %2 = alloca i32, align 4
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  %8 = alloca i32, align 4
  store i32 %0, ptr %3, align 4, !tbaa !5
  %9 = load i32, ptr %3, align 4, !tbaa !5
  %10 = sext i32 %9 to i64
  %11 = getelementptr inbounds [510 x i32], ptr @memo, i64 0, i64 %10
  %12 = load i32, ptr %11, align 4, !tbaa !5
  %13 = icmp sge i32 %12, 0
  br i1 %13, label %14, label %19

14:                                               ; preds = %1
  %15 = load i32, ptr %3, align 4, !tbaa !5
  %16 = sext i32 %15 to i64
  %17 = getelementptr inbounds [510 x i32], ptr @memo, i64 0, i64 %16
  %18 = load i32, ptr %17, align 4, !tbaa !5
  store i32 %18, ptr %2, align 4
  br label %74

19:                                               ; preds = %1
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #4
  store i32 0, ptr %4, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #4
  store i32 0, ptr %5, align 4, !tbaa !5
  br label %20

20:                                               ; preds = %66, %19
  %21 = load i32, ptr %5, align 4, !tbaa !5
  %22 = load i32, ptr @n, align 4, !tbaa !5
  %23 = icmp sle i32 %21, %22
  br i1 %23, label %25, label %24

24:                                               ; preds = %20
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #4
  br label %69

25:                                               ; preds = %20
  %26 = load i32, ptr %3, align 4, !tbaa !5
  %27 = load i32, ptr %5, align 4, !tbaa !5
  %28 = icmp eq i32 %26, %27
  br i1 %28, label %29, label %30

29:                                               ; preds = %25
  br label %66

30:                                               ; preds = %25
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #4
  %31 = load i32, ptr %5, align 4, !tbaa !5
  %32 = sext i32 %31 to i64
  %33 = getelementptr inbounds [510 x %"class.std::tuple"], ptr @T, i64 0, i64 %32
  %34 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3getILm1EJiiEERNSt13tuple_elementIXT_ESt5tupleIJDpT0_EEE4typeERS4_(ptr noundef nonnull align 4 dereferenceable(8) %33) #4
  %35 = load i32, ptr %34, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #4
  %36 = load i32, ptr %3, align 4, !tbaa !5
  %37 = sext i32 %36 to i64
  %38 = getelementptr inbounds [510 x %"class.std::tuple"], ptr @T, i64 0, i64 %37
  %39 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3getILm1EJiiEERNSt13tuple_elementIXT_ESt5tupleIJDpT0_EEE4typeERS4_(ptr noundef nonnull align 4 dereferenceable(8) %38) #4
  %40 = load i32, ptr %39, align 4, !tbaa !5
  %41 = load i32, ptr %3, align 4, !tbaa !5
  %42 = sext i32 %41 to i64
  %43 = getelementptr inbounds [510 x [510 x i32]], ptr @W, i64 0, i64 %42
  %44 = load i32, ptr %5, align 4, !tbaa !5
  %45 = sext i32 %44 to i64
  %46 = getelementptr inbounds [510 x i32], ptr %43, i64 0, i64 %45
  %47 = load i32, ptr %46, align 4, !tbaa !5
  %48 = add nsw i32 %40, %47
  store i32 %48, ptr %7, align 4, !tbaa !5
  %49 = load i32, ptr %5, align 4, !tbaa !5
  %50 = sext i32 %49 to i64
  %51 = getelementptr inbounds [510 x %"class.std::tuple"], ptr @T, i64 0, i64 %50
  %52 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3getILm0EJiiEERNSt13tuple_elementIXT_ESt5tupleIJDpT0_EEE4typeERS4_(ptr noundef nonnull align 4 dereferenceable(8) %51) #4
  %53 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3maxIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4) %7, ptr noundef nonnull align 4 dereferenceable(4) %52)
  %54 = load i32, ptr %53, align 4, !tbaa !5
  %55 = sub nsw i32 %35, %54
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #4
  store i32 %55, ptr %6, align 4, !tbaa !5
  %56 = load i32, ptr %6, align 4, !tbaa !5
  %57 = icmp sgt i32 %56, 0
  br i1 %57, label %58, label %65

58:                                               ; preds = %30
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #4
  %59 = load i32, ptr %6, align 4, !tbaa !5
  %60 = load i32, ptr %5, align 4, !tbaa !5
  %61 = call noundef i32 @_Z4calci(i32 noundef %60)
  %62 = add nsw i32 %59, %61
  store i32 %62, ptr %8, align 4, !tbaa !5
  %63 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3maxIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4) %4, ptr noundef nonnull align 4 dereferenceable(4) %8)
  %64 = load i32, ptr %63, align 4, !tbaa !5
  store i32 %64, ptr %4, align 4, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #4
  br label %65

65:                                               ; preds = %58, %30
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #4
  br label %66

66:                                               ; preds = %65, %29
  %67 = load i32, ptr %5, align 4, !tbaa !5
  %68 = add nsw i32 %67, 1
  store i32 %68, ptr %5, align 4, !tbaa !5
  br label %20, !llvm.loop !9

69:                                               ; preds = %24
  %70 = load i32, ptr %4, align 4, !tbaa !5
  %71 = load i32, ptr %3, align 4, !tbaa !5
  %72 = sext i32 %71 to i64
  %73 = getelementptr inbounds [510 x i32], ptr @memo, i64 0, i64 %72
  store i32 %70, ptr %73, align 4, !tbaa !5
  store i32 %70, ptr %2, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #4
  br label %74

74:                                               ; preds = %69, %14
  %75 = load i32, ptr %2, align 4
  ret i32 %75
}

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3getILm1EJiiEERNSt13tuple_elementIXT_ESt5tupleIJDpT0_EEE4typeERS4_(ptr noundef nonnull align 4 dereferenceable(8)) #2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3maxIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) #3

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3getILm0EJiiEERNSt13tuple_elementIXT_ESt5tupleIJDpT0_EEE4typeERS4_(ptr noundef nonnull align 4 dereferenceable(8)) #2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #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 = { 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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"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::tuple" = type { %"struct.std::_Tuple_impl" }
%"struct.std::_Tuple_impl" = type { %"struct.std::_Tuple_impl.0", %"struct.std::_Head_base.1" }
%"struct.std::_Tuple_impl.0" = type { %"struct.std::_Head_base" }
%"struct.std::_Head_base" = type { i32 }
%"struct.std::_Head_base.1" = type { i32 }

@n = external dso_local local_unnamed_addr global i32, align 4
@T = external dso_local global [510 x %"class.std::tuple"], align 16
@memo = external dso_local local_unnamed_addr global [510 x i32], align 16
@W = external dso_local local_unnamed_addr global [510 x [510 x i32]], align 16

; Function Attrs: mustprogress nounwind uwtable
define dso_local noundef i32 @_Z4calci(i32 noundef %0) local_unnamed_addr #0 {
  %2 = alloca i32, align 4
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = sext i32 %0 to i64
  %6 = getelementptr inbounds [510 x i32], ptr @memo, i64 0, i64 %5
  %7 = load i32, ptr %6, align 4, !tbaa !5
  %8 = icmp sgt i32 %7, -1
  br i1 %8, label %39, label %9

9:                                                ; preds = %1
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %2) #3
  store i32 0, ptr %2, align 4, !tbaa !5
  %10 = load i32, ptr @n, align 4, !tbaa !5
  %.not19 = icmp slt i32 %10, 0
  br i1 %.not19, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %9
  %11 = getelementptr inbounds [510 x %"class.std::tuple"], ptr @T, i64 0, i64 %5
  %12 = zext i32 %0 to i64
  br label %14

._crit_edge.loopexit:                             ; preds = %36
  %.pre = load i32, ptr %2, align 4, !tbaa !5
  br label %._crit_edge

._crit_edge:                                      ; preds = %._crit_edge.loopexit, %9
  %13 = phi i32 [ %.pre, %._crit_edge.loopexit ], [ 0, %9 ]
  store i32 %13, ptr %6, align 4, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %2) #3
  br label %39

14:                                               ; preds = %.lr.ph, %36
  %indvars.iv = phi i64 [ 0, %.lr.ph ], [ %indvars.iv.next, %36 ]
  %15 = icmp eq i64 %indvars.iv, %12
  br i1 %15, label %36, label %16

16:                                               ; preds = %14
  %17 = getelementptr inbounds [510 x %"class.std::tuple"], ptr @T, i64 0, i64 %indvars.iv
  %18 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3getILm1EJiiEERNSt13tuple_elementIXT_ESt5tupleIJDpT0_EEE4typeERS4_(ptr noundef nonnull align 4 dereferenceable(8) %17) #3
  %19 = load i32, ptr %18, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %3) #3
  %20 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3getILm1EJiiEERNSt13tuple_elementIXT_ESt5tupleIJDpT0_EEE4typeERS4_(ptr noundef nonnull align 4 dereferenceable(8) %11) #3
  %21 = load i32, ptr %20, align 4, !tbaa !5
  %22 = getelementptr inbounds [510 x [510 x i32]], ptr @W, i64 0, i64 %5, i64 %indvars.iv
  %23 = load i32, ptr %22, align 4, !tbaa !5
  %24 = add nsw i32 %23, %21
  store i32 %24, ptr %3, align 4, !tbaa !5
  %25 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3getILm0EJiiEERNSt13tuple_elementIXT_ESt5tupleIJDpT0_EEE4typeERS4_(ptr noundef nonnull align 4 dereferenceable(8) %17) #3
  %26 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3maxIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4) %3, ptr noundef nonnull align 4 dereferenceable(4) %25)
  %27 = load i32, ptr %26, align 4, !tbaa !5
  %28 = sub nsw i32 %19, %27
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %3) #3
  %29 = icmp sgt i32 %28, 0
  br i1 %29, label %30, label %36

30:                                               ; preds = %16
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %4) #3
  %31 = trunc nuw nsw i64 %indvars.iv to i32
  %32 = call noundef i32 @_Z4calci(i32 noundef %31)
  %33 = add nsw i32 %32, %28
  store i32 %33, ptr %4, align 4, !tbaa !5
  %34 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3maxIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4) %2, ptr noundef nonnull align 4 dereferenceable(4) %4)
  %35 = load i32, ptr %34, align 4, !tbaa !5
  store i32 %35, ptr %2, align 4, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %4) #3
  br label %36

36:                                               ; preds = %16, %30, %14
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %37 = load i32, ptr @n, align 4, !tbaa !5
  %38 = sext i32 %37 to i64
  %.not.not = icmp slt i64 %indvars.iv, %38
  br i1 %.not.not, label %14, label %._crit_edge.loopexit, !llvm.loop !9

39:                                               ; preds = %1, %._crit_edge
  %.0 = phi i32 [ %13, %._crit_edge ], [ %7, %1 ]
  ret i32 %.0
}

; 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 nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3getILm1EJiiEERNSt13tuple_elementIXT_ESt5tupleIJDpT0_EEE4typeERS4_(ptr noundef nonnull align 4 dereferenceable(8)) local_unnamed_addr #0

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3maxIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3getILm0EJiiEERNSt13tuple_elementIXT_ESt5tupleIJDpT0_EEE4typeERS4_(ptr noundef nonnull align 4 dereferenceable(8)) local_unnamed_addr #0

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

attributes #0 = { 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 #1 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: EarlyCSEPass,GVNPass,GlobalOptPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,LICMPass,LoopRotatePass,LoopSimplifyPass,PostOrderFunctionAttrsPass,ReassociatePass,SROAPass,SimplifyCFGPass