; LLVM IR from VastoLorde95/Competitive-Programming :: SPOJ/Random/PUCMM210 (puc)

; 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"

@sum = external dso_local global [1000001 x i64], align 16
@MOD = external dso_local global i64, align 8
@.str = external hidden unnamed_addr constant [3 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [6 x i8], align 1

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() #0 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  %3 = alloca i32, align 4
  %4 = alloca i64, align 8
  %5 = alloca i64, align 8
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr %2) #3
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #3
  store i64 1, ptr getelementptr inbounds ([1000001 x i64], ptr @sum, i64 0, i64 1), align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #3
  store i64 2, ptr %5, align 8, !tbaa !5
  br label %6

6:                                                ; preds = %32, %0
  %7 = load i64, ptr %5, align 8, !tbaa !5
  %8 = icmp sle i64 %7, 1000000
  br i1 %8, label %10, label %9

9:                                                ; preds = %6
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #3
  br label %35

10:                                               ; preds = %6
  %11 = load i64, ptr %5, align 8, !tbaa !5
  %12 = load i64, ptr %5, align 8, !tbaa !5
  %13 = add nsw i64 %12, 1
  %14 = mul nsw i64 %11, %13
  %15 = sdiv i64 %14, 2
  %16 = load i64, ptr @MOD, align 8, !tbaa !5
  %17 = srem i64 %15, %16
  store i64 %17, ptr %4, align 8, !tbaa !5
  %18 = load i64, ptr %5, align 8, !tbaa !5
  %19 = sub nsw i64 %18, 1
  %20 = getelementptr inbounds [1000001 x i64], ptr @sum, i64 0, i64 %19
  %21 = load i64, ptr %20, align 8, !tbaa !5
  %22 = load i64, ptr %4, align 8, !tbaa !5
  %23 = load i64, ptr %4, align 8, !tbaa !5
  %24 = mul nsw i64 %22, %23
  %25 = load i64, ptr @MOD, align 8, !tbaa !5
  %26 = srem i64 %24, %25
  %27 = add nsw i64 %21, %26
  %28 = load i64, ptr @MOD, align 8, !tbaa !5
  %29 = srem i64 %27, %28
  %30 = load i64, ptr %5, align 8, !tbaa !5
  %31 = getelementptr inbounds [1000001 x i64], ptr @sum, i64 0, i64 %30
  store i64 %29, ptr %31, align 8, !tbaa !5
  br label %32

32:                                               ; preds = %10
  %33 = load i64, ptr %5, align 8, !tbaa !5
  %34 = add nsw i64 %33, 1
  store i64 %34, ptr %5, align 8, !tbaa !5
  br label %6, !llvm.loop !9

35:                                               ; preds = %9
  %36 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %2)
  br label %37

37:                                               ; preds = %41, %35
  %38 = load i32, ptr %2, align 4, !tbaa !11
  %39 = add nsw i32 %38, -1
  store i32 %39, ptr %2, align 4, !tbaa !11
  %40 = icmp ne i32 %38, 0
  br i1 %40, label %41, label %48

41:                                               ; preds = %37
  %42 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %3)
  %43 = load i32, ptr %3, align 4, !tbaa !11
  %44 = sext i32 %43 to i64
  %45 = getelementptr inbounds [1000001 x i64], ptr @sum, i64 0, i64 %44
  %46 = load i64, ptr %45, align 8, !tbaa !5
  %47 = call i32 (ptr, ...) @printf(ptr noundef @.str.1, i64 noundef %46)
  br label %37, !llvm.loop !13

48:                                               ; preds = %37
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #3
  ret i32 0
}

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

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

declare i32 @__isoc99_scanf(ptr noundef, ...) #2

declare i32 @printf(ptr noundef, ...) #2

attributes #0 = { mustprogress norecurse 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 = { 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 = !{!"long long", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}
!11 = !{!12, !12, i64 0}
!12 = !{!"int", !7, i64 0}
!13 = distinct !{!13, !10}


; 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"

@sum = external dso_local local_unnamed_addr global [1000001 x i64], align 16
@MOD = external dso_local local_unnamed_addr global i64, align 8
@.str = external hidden unnamed_addr constant [3 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [6 x i8], align 1

; Function Attrs: mustprogress nofree norecurse nounwind uwtable
define dso_local noundef i32 @main() local_unnamed_addr #0 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %1) #3
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %2) #3
  store i64 1, ptr getelementptr inbounds (i8, ptr @sum, i64 8), align 8, !tbaa !5
  %3 = load i64, ptr @MOD, align 8, !tbaa !5
  br label %8

4:                                                ; preds = %8
  %5 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %1)
  %6 = load i32, ptr %1, align 4, !tbaa !9
  %7 = add nsw i32 %6, -1
  store i32 %7, ptr %1, align 4, !tbaa !9
  %.not9 = icmp eq i32 %6, 0
  br i1 %.not9, label %._crit_edge, label %.lr.ph

8:                                                ; preds = %0, %8
  %9 = phi i64 [ 1, %0 ], [ %17, %8 ]
  %.08 = phi i64 [ 2, %0 ], [ %10, %8 ]
  %10 = add nuw nsw i64 %.08, 1
  %11 = mul nuw nsw i64 %10, %.08
  %12 = lshr i64 %11, 1
  %13 = srem i64 %12, %3
  %14 = mul nuw nsw i64 %13, %13
  %15 = srem i64 %14, %3
  %16 = add nsw i64 %15, %9
  %17 = srem i64 %16, %3
  %18 = getelementptr inbounds [1000001 x i64], ptr @sum, i64 0, i64 %.08
  store i64 %17, ptr %18, align 8, !tbaa !5
  %exitcond.not = icmp eq i64 %10, 1000001
  br i1 %exitcond.not, label %4, label %8, !llvm.loop !11

.lr.ph:                                           ; preds = %4, %.lr.ph
  %19 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %2)
  %20 = load i32, ptr %2, align 4, !tbaa !9
  %21 = sext i32 %20 to i64
  %22 = getelementptr inbounds [1000001 x i64], ptr @sum, i64 0, i64 %21
  %23 = load i64, ptr %22, align 8, !tbaa !5
  %24 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.1, i64 noundef %23)
  %25 = load i32, ptr %1, align 4, !tbaa !9
  %26 = add nsw i32 %25, -1
  store i32 %26, ptr %1, align 4, !tbaa !9
  %.not = icmp eq i32 %25, 0
  br i1 %.not, label %._crit_edge, label %.lr.ph, !llvm.loop !13

._crit_edge:                                      ; preds = %.lr.ph, %4
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %2) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %1) #3
  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 nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: nofree nounwind
declare noundef i32 @__isoc99_scanf(ptr nocapture noundef readonly, ...) local_unnamed_addr #2

; Function Attrs: nofree nounwind
declare noundef i32 @printf(ptr nocapture noundef readonly, ...) local_unnamed_addr #2

attributes #0 = { mustprogress nofree norecurse 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 = { nofree nounwind "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 = !{!"long long", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}
!13 = distinct !{!13, !12}


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