; LLVM IR from lzyrapx/Competitive-Programming :: HDUOJ/1229.ll (Z5judgeiii)

; 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: mustprogress nounwind uwtable
define dso_local noundef zeroext i1 @_Z5judgeiii(i32 noundef %0, i32 noundef %1, i32 noundef %2) #0 {
  %4 = alloca i1, align 1
  %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
  store i32 %0, ptr %5, align 4, !tbaa !5
  store i32 %1, ptr %6, align 4, !tbaa !5
  store i32 %2, ptr %7, align 4, !tbaa !5
  %10 = load i32, ptr %7, align 4, !tbaa !5
  %11 = icmp eq i32 %10, 0
  br i1 %11, label %12, label %13

12:                                               ; preds = %3
  store i1 false, ptr %4, align 1
  br label %37

13:                                               ; preds = %3
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #2
  store i32 1, ptr %8, align 4, !tbaa !5
  br label %14

14:                                               ; preds = %31, %13
  %15 = load i32, ptr %8, align 4, !tbaa !5
  %16 = load i32, ptr %7, align 4, !tbaa !5
  %17 = icmp sle i32 %15, %16
  br i1 %17, label %19, label %18

18:                                               ; preds = %14
  store i32 2, ptr %9, align 4
  br label %34

19:                                               ; preds = %14
  %20 = load i32, ptr %5, align 4, !tbaa !5
  %21 = srem i32 %20, 10
  %22 = load i32, ptr %6, align 4, !tbaa !5
  %23 = srem i32 %22, 10
  %24 = icmp ne i32 %21, %23
  br i1 %24, label %25, label %26

25:                                               ; preds = %19
  store i1 false, ptr %4, align 1
  store i32 1, ptr %9, align 4
  br label %34

26:                                               ; preds = %19
  %27 = load i32, ptr %5, align 4, !tbaa !5
  %28 = sdiv i32 %27, 10
  store i32 %28, ptr %5, align 4, !tbaa !5
  %29 = load i32, ptr %6, align 4, !tbaa !5
  %30 = sdiv i32 %29, 10
  store i32 %30, ptr %6, align 4, !tbaa !5
  br label %31

31:                                               ; preds = %26
  %32 = load i32, ptr %8, align 4, !tbaa !5
  %33 = add nsw i32 %32, 1
  store i32 %33, ptr %8, align 4, !tbaa !5
  br label %14, !llvm.loop !9

34:                                               ; preds = %25, %18
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #2
  %35 = load i32, ptr %9, align 4
  switch i32 %35, label %39 [
    i32 2, label %36
    i32 1, label %37
  ]

36:                                               ; preds = %34
  store i1 true, ptr %4, align 1
  br label %37

37:                                               ; preds = %36, %34, %12
  %38 = load i1, ptr %4, align 1
  ret i1 %38

39:                                               ; preds = %34
  unreachable
}

; 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

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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = !{!"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"

; Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(none) uwtable
define dso_local noundef zeroext i1 @_Z5judgeiii(i32 noundef %0, i32 noundef %1, i32 noundef %2) local_unnamed_addr #0 {
  %4 = icmp eq i32 %2, 0
  br i1 %4, label %.loopexit, label %.preheader

.preheader:                                       ; preds = %3
  %.not15 = icmp slt i32 %2, 1
  br i1 %.not15, label %.loopexit, label %.lr.ph

.lr.ph:                                           ; preds = %.lr.ph, %.preheader
  %.0918 = phi i32 [ 1, %.preheader ], [ %9, %.lr.ph ]
  %.01117 = phi i32 [ %1, %.preheader ], [ %8, %.lr.ph ]
  %.01216 = phi i32 [ %0, %.preheader ], [ %6, %.lr.ph ]
  %5 = srem i32 %.01216, 10
  %6 = sdiv i32 %.01216, 10
  %7 = srem i32 %.01117, 10
  %8 = sdiv i32 %.01117, 10
  %.not14 = icmp eq i32 %5, %7
  %.not14.not = xor i1 %.not14, true
  %9 = add nuw i32 %.0918, 1
  %exitcond = icmp eq i32 %.0918, %2
  %or.cond = select i1 %.not14.not, i1 true, i1 %exitcond
  br i1 %or.cond, label %.loopexit, label %.lr.ph, !llvm.loop !5

.loopexit:                                        ; preds = %.lr.ph, %.preheader, %3
  %.1 = phi i1 [ false, %3 ], [ true, %.preheader ], [ %.not14, %.lr.ph ]
  ret i1 %.1
}

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)"}
!5 = distinct !{!5, !6}
!6 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: ConstraintEliminationPass,CorrelatedValuePropagationPass,DivRemPairsPass,EarlyCSEPass,GVNPass,GlobalOptPass,IPSCCPPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,JumpThreadingPass,LCSSAPass,LICMPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass