; LLVM IR from DionysiosB/CodeForces :: 0800-0899/845B-LubaAndTheTicket.ll (Z7getDistll)

; 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"

; 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
define dso_local noundef i32 @_Z7getDistll(i64 noundef %0, i64 noundef %1) #1 {
  %3 = alloca i64, align 8
  %4 = alloca i64, align 8
  %5 = alloca i32, align 4
  %6 = alloca i64, align 8
  store i64 %0, ptr %3, align 8, !tbaa !5
  store i64 %1, ptr %4, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #2
  store i32 0, ptr %5, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #2
  store i64 0, ptr %6, align 8, !tbaa !5
  br label %7

7:                                                ; preds = %24, %2
  %8 = load i64, ptr %6, align 8, !tbaa !5
  %9 = icmp slt i64 %8, 6
  br i1 %9, label %11, label %10

10:                                               ; preds = %7
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #2
  br label %27

11:                                               ; preds = %7
  %12 = load i64, ptr %3, align 8, !tbaa !5
  %13 = srem i64 %12, 10
  %14 = load i64, ptr %4, align 8, !tbaa !5
  %15 = srem i64 %14, 10
  %16 = icmp ne i64 %13, %15
  %17 = zext i1 %16 to i32
  %18 = load i32, ptr %5, align 4, !tbaa !9
  %19 = add nsw i32 %18, %17
  store i32 %19, ptr %5, align 4, !tbaa !9
  %20 = load i64, ptr %3, align 8, !tbaa !5
  %21 = sdiv i64 %20, 10
  store i64 %21, ptr %3, align 8, !tbaa !5
  %22 = load i64, ptr %4, align 8, !tbaa !5
  %23 = sdiv i64 %22, 10
  store i64 %23, ptr %4, align 8, !tbaa !5
  br label %24

24:                                               ; preds = %11
  %25 = load i64, ptr %6, align 8, !tbaa !5
  %26 = add nsw i64 %25, 1
  store i64 %26, ptr %6, align 8, !tbaa !5
  br label %7, !llvm.loop !11

27:                                               ; preds = %10
  %28 = load i32, ptr %5, align 4, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #2
  ret i32 %28
}

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 = { 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", !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"}


; 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"

; Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(none) uwtable
define dso_local noundef i32 @_Z7getDistll(i64 noundef %0, i64 noundef %1) local_unnamed_addr #0 {
  %3 = srem i64 %0, 10
  %4 = srem i64 %1, 10
  %5 = icmp ne i64 %3, %4
  %6 = zext i1 %5 to i32
  %7 = sdiv i64 %0, 10
  %8 = sdiv i64 %1, 10
  %9 = srem i64 %7, 10
  %10 = srem i64 %8, 10
  %11 = icmp ne i64 %9, %10
  %12 = zext i1 %11 to i32
  %13 = add nuw nsw i32 %6, %12
  %14 = sdiv i64 %0, 100
  %15 = sdiv i64 %1, 100
  %16 = srem i64 %14, 10
  %17 = srem i64 %15, 10
  %18 = icmp ne i64 %16, %17
  %19 = zext i1 %18 to i32
  %20 = add nuw nsw i32 %13, %19
  %21 = sdiv i64 %0, 1000
  %22 = sdiv i64 %1, 1000
  %23 = srem i64 %21, 10
  %24 = srem i64 %22, 10
  %25 = icmp ne i64 %23, %24
  %26 = zext i1 %25 to i32
  %27 = add nuw nsw i32 %20, %26
  %28 = sdiv i64 %0, 10000
  %29 = sdiv i64 %1, 10000
  %30 = srem i64 %28, 10
  %31 = srem i64 %29, 10
  %32 = icmp ne i64 %30, %31
  %33 = zext i1 %32 to i32
  %34 = add nuw nsw i32 %27, %33
  %35 = sdiv i64 %0, 100000
  %36 = sdiv i64 %1, 100000
  %37 = srem i64 %35, 10
  %38 = srem i64 %36, 10
  %39 = icmp ne i64 %37, %38
  %40 = zext i1 %39 to i32
  %41 = add nuw nsw i32 %34, %40
  ret i32 %41
}

attributes #0 = { mustprogress nofree norecurse nosync nounwind willreturn memory(none) 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" }

!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)"}


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