; LLVM IR from Tunghohin/Competitive_Coding :: Uva/uva11806.ll (Z5solvei)

; 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" }

@C = external dso_local global [510 x [510 x i32]], align 16
@_ZSt3cin = external global %"class.std::basic_istream", align 8
@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@.str = external hidden unnamed_addr constant [6 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [3 x i8], align 1

; Function Attrs: mustprogress uwtable
define dso_local void @_Z5solvei(i32 noundef %0) #0 {
  %2 = alloca i32, align 4
  %3 = alloca i64, align 8
  %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
  %9 = alloca i32, align 4
  %10 = alloca i32, align 4
  store i32 %0, ptr %2, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #4
  store i64 0, ptr %3, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #4
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #4
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #4
  %11 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %4)
  %12 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %11, ptr noundef nonnull align 4 dereferenceable(4) %5)
  %13 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %12, ptr noundef nonnull align 4 dereferenceable(4) %6)
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #4
  store i32 0, ptr %7, align 4, !tbaa !5
  br label %14

14:                                               ; preds = %90, %1
  %15 = load i32, ptr %7, align 4, !tbaa !5
  %16 = icmp slt i32 %15, 16
  br i1 %16, label %18, label %17

17:                                               ; preds = %14
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #4
  br label %93

18:                                               ; preds = %14
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #4
  %19 = load i32, ptr %4, align 4, !tbaa !5
  store i32 %19, ptr %8, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %9) #4
  %20 = load i32, ptr %5, align 4, !tbaa !5
  store i32 %20, ptr %9, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %10) #4
  store i32 0, ptr %10, align 4, !tbaa !5
  %21 = load i32, ptr %7, align 4, !tbaa !5
  %22 = and i32 %21, 1
  %23 = icmp ne i32 %22, 0
  br i1 %23, label %24, label %29

24:                                               ; preds = %18
  %25 = load i32, ptr %8, align 4, !tbaa !5
  %26 = add nsw i32 %25, -1
  store i32 %26, ptr %8, align 4, !tbaa !5
  %27 = load i32, ptr %10, align 4, !tbaa !5
  %28 = add nsw i32 %27, 1
  store i32 %28, ptr %10, align 4, !tbaa !5
  br label %29

29:                                               ; preds = %24, %18
  %30 = load i32, ptr %7, align 4, !tbaa !5
  %31 = and i32 %30, 2
  %32 = icmp ne i32 %31, 0
  br i1 %32, label %33, label %38

33:                                               ; preds = %29
  %34 = load i32, ptr %8, align 4, !tbaa !5
  %35 = add nsw i32 %34, -1
  store i32 %35, ptr %8, align 4, !tbaa !5
  %36 = load i32, ptr %10, align 4, !tbaa !5
  %37 = add nsw i32 %36, 1
  store i32 %37, ptr %10, align 4, !tbaa !5
  br label %38

38:                                               ; preds = %33, %29
  %39 = load i32, ptr %7, align 4, !tbaa !5
  %40 = and i32 %39, 4
  %41 = icmp ne i32 %40, 0
  br i1 %41, label %42, label %47

42:                                               ; preds = %38
  %43 = load i32, ptr %9, align 4, !tbaa !5
  %44 = add nsw i32 %43, -1
  store i32 %44, ptr %9, align 4, !tbaa !5
  %45 = load i32, ptr %10, align 4, !tbaa !5
  %46 = add nsw i32 %45, 1
  store i32 %46, ptr %10, align 4, !tbaa !5
  br label %47

47:                                               ; preds = %42, %38
  %48 = load i32, ptr %7, align 4, !tbaa !5
  %49 = and i32 %48, 8
  %50 = icmp ne i32 %49, 0
  br i1 %50, label %51, label %56

51:                                               ; preds = %47
  %52 = load i32, ptr %9, align 4, !tbaa !5
  %53 = add nsw i32 %52, -1
  store i32 %53, ptr %9, align 4, !tbaa !5
  %54 = load i32, ptr %10, align 4, !tbaa !5
  %55 = add nsw i32 %54, 1
  store i32 %55, ptr %10, align 4, !tbaa !5
  br label %56

56:                                               ; preds = %51, %47
  %57 = load i32, ptr %10, align 4, !tbaa !5
  %58 = and i32 %57, 1
  %59 = icmp ne i32 %58, 0
  br i1 %59, label %60, label %75

60:                                               ; preds = %56
  %61 = load i64, ptr %3, align 8, !tbaa !9
  %62 = add nsw i64 %61, 1000007
  %63 = load i32, ptr %8, align 4, !tbaa !5
  %64 = load i32, ptr %9, align 4, !tbaa !5
  %65 = mul nsw i32 %63, %64
  %66 = sext i32 %65 to i64
  %67 = getelementptr inbounds [510 x [510 x i32]], ptr @C, i64 0, i64 %66
  %68 = load i32, ptr %6, align 4, !tbaa !5
  %69 = sext i32 %68 to i64
  %70 = getelementptr inbounds [510 x i32], ptr %67, i64 0, i64 %69
  %71 = load i32, ptr %70, align 4, !tbaa !5
  %72 = sext i32 %71 to i64
  %73 = sub nsw i64 %62, %72
  %74 = srem i64 %73, 1000007
  store i64 %74, ptr %3, align 8, !tbaa !9
  br label %89

75:                                               ; preds = %56
  %76 = load i64, ptr %3, align 8, !tbaa !9
  %77 = load i32, ptr %8, align 4, !tbaa !5
  %78 = load i32, ptr %9, align 4, !tbaa !5
  %79 = mul nsw i32 %77, %78
  %80 = sext i32 %79 to i64
  %81 = getelementptr inbounds [510 x [510 x i32]], ptr @C, i64 0, i64 %80
  %82 = load i32, ptr %6, align 4, !tbaa !5
  %83 = sext i32 %82 to i64
  %84 = getelementptr inbounds [510 x i32], ptr %81, i64 0, i64 %83
  %85 = load i32, ptr %84, align 4, !tbaa !5
  %86 = sext i32 %85 to i64
  %87 = add nsw i64 %76, %86
  %88 = srem i64 %87, 1000007
  store i64 %88, ptr %3, align 8, !tbaa !9
  br label %89

89:                                               ; preds = %75, %60
  call void @llvm.lifetime.end.p0(i64 4, ptr %10) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #4
  br label %90

90:                                               ; preds = %89
  %91 = load i32, ptr %7, align 4, !tbaa !5
  %92 = add nsw i32 %91, 1
  store i32 %92, ptr %7, align 4, !tbaa !5
  br label %14, !llvm.loop !11

93:                                               ; preds = %17
  %94 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef @.str)
  %95 = load i32, ptr %2, align 4, !tbaa !5
  %96 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) %94, i32 noundef %95)
  %97 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %96, ptr noundef @.str.1)
  %98 = load i64, ptr %3, align 8, !tbaa !9
  %99 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEx(ptr noundef nonnull align 8 dereferenceable(8) %97, i64 noundef %98)
  %100 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_c(ptr noundef nonnull align 8 dereferenceable(8) %99, i8 noundef signext 10)
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #4
  ret void
}

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

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 4 dereferenceable(4)) #2

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

; 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) #3

; 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) #3

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

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEx(ptr noundef nonnull align 8 dereferenceable(8), i64 noundef) #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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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" }
attributes #3 = { 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 #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 = !{!10, !10, i64 0}
!10 = !{!"long long", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"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_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" }

@C = external dso_local local_unnamed_addr global [510 x [510 x i32]], align 16
@_ZSt3cin = external global %"class.std::basic_istream", align 8
@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@.str = external hidden unnamed_addr constant [6 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [3 x i8], align 1

; Function Attrs: mustprogress uwtable
define dso_local void @_Z5solvei(i32 noundef %0) local_unnamed_addr #0 {
  %2 = alloca i32, align 4
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %2) #4
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %3) #4
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %4) #4
  %5 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, 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 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %6, ptr noundef nonnull align 4 dereferenceable(4) %4)
  %8 = load i32, ptr %2, align 4, !tbaa !5
  %9 = load i32, ptr %3, align 4, !tbaa !5
  %10 = load i32, ptr %4, align 4
  %11 = sext i32 %10 to i64
  br label %18

12:                                               ; preds = %40
  %13 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef nonnull @.str)
  %14 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) %13, i32 noundef %0)
  %15 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %14, ptr noundef nonnull @.str.1)
  %16 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEx(ptr noundef nonnull align 8 dereferenceable(8) %15, i64 noundef %.129)
  %17 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_c(ptr noundef nonnull align 8 dereferenceable(8) %16, i8 noundef signext 10)
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %4) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %3) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %2) #4
  ret void

18:                                               ; preds = %1, %40
  %.02737 = phi i32 [ 0, %1 ], [ %41, %40 ]
  %.02836 = phi i64 [ 0, %1 ], [ %.129, %40 ]
  %19 = and i32 %.02737, 1
  %spec.select = sub i32 %8, %19
  %20 = shl i32 %.02737, 30
  %sext = ashr i32 %20, 31
  %.126 = add nsw i32 %spec.select, %sext
  %21 = lshr i32 %.02737, 1
  %.1 = add nuw nsw i32 %21, %.02737
  %22 = shl i32 %.02737, 29
  %sext35 = ashr i32 %22, 31
  %23 = lshr i32 %.02737, 2
  %.2 = add nuw nsw i32 %.1, %23
  %.not32 = icmp ugt i32 %.02737, 7
  %24 = sext i1 %.not32 to i32
  %.023 = add nsw i32 %sext35, %24
  %.124 = add i32 %.023, %9
  %.2.tr = trunc i32 %.2 to i1
  %.3.narrow = xor i1 %.not32, %.2.tr
  br i1 %.3.narrow, label %25, label %33

25:                                               ; preds = %18
  %26 = add nsw i64 %.02836, 1000007
  %27 = mul nsw i32 %.124, %.126
  %28 = sext i32 %27 to i64
  %29 = getelementptr inbounds [510 x [510 x i32]], ptr @C, i64 0, i64 %28, i64 %11
  %30 = load i32, ptr %29, align 4, !tbaa !5
  %31 = sext i32 %30 to i64
  %32 = sub nsw i64 %26, %31
  br label %40

33:                                               ; preds = %18
  %34 = mul nsw i32 %.124, %.126
  %35 = sext i32 %34 to i64
  %36 = getelementptr inbounds [510 x [510 x i32]], ptr @C, i64 0, i64 %35, i64 %11
  %37 = load i32, ptr %36, align 4, !tbaa !5
  %38 = sext i32 %37 to i64
  %39 = add nsw i64 %.02836, %38
  br label %40

40:                                               ; preds = %33, %25
  %.129.in = phi i64 [ %32, %25 ], [ %39, %33 ]
  %.129 = srem i64 %.129.in, 1000007
  %41 = add nuw nsw i32 %.02737, 1
  %exitcond.not = icmp eq i32 %41, 16
  br i1 %exitcond.not, label %12, label %18, !llvm.loop !9
}

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

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 #2

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

; 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 #3

; 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 #3

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 @_ZNSolsEx(ptr noundef nonnull align 8 dereferenceable(8), i64 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 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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" }
attributes #3 = { 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 #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"}


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