; LLVM IR from Shah-Shishir/Codeforces-Solutions :: 935B. Fafa and the Gates (main)

; 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"

@.str = external hidden unnamed_addr constant [6 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [4 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 i32, align 4
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  %7 = alloca [100005 x i8], align 16
  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 4, ptr %4) #3
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #3
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #3
  call void @llvm.lifetime.start.p0(i64 100005, ptr %7) #3
  br label %8

8:                                                ; preds = %55, %0
  %9 = getelementptr inbounds [100005 x i8], ptr %7, i64 0, i64 0
  %10 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %2, ptr noundef %9)
  %11 = icmp ne i32 %10, -1
  br i1 %11, label %12, label %58

12:                                               ; preds = %8
  store i32 0, ptr %4, align 4, !tbaa !5
  store i32 0, ptr %6, align 4, !tbaa !5
  store i32 0, ptr %5, align 4, !tbaa !5
  store i32 0, ptr %3, align 4, !tbaa !5
  br label %13

13:                                               ; preds = %52, %12
  %14 = load i32, ptr %3, align 4, !tbaa !5
  %15 = load i32, ptr %2, align 4, !tbaa !5
  %16 = sub nsw i32 %15, 1
  %17 = icmp slt i32 %14, %16
  br i1 %17, label %18, label %55

18:                                               ; preds = %13
  %19 = load i32, ptr %3, align 4, !tbaa !5
  %20 = sext i32 %19 to i64
  %21 = getelementptr inbounds [100005 x i8], ptr %7, i64 0, i64 %20
  %22 = load i8, ptr %21, align 1, !tbaa !9
  %23 = sext i8 %22 to i32
  %24 = icmp eq i32 %23, 85
  br i1 %24, label %25, label %28

25:                                               ; preds = %18
  %26 = load i32, ptr %6, align 4, !tbaa !5
  %27 = add nsw i32 %26, 1
  store i32 %27, ptr %6, align 4, !tbaa !5
  br label %31

28:                                               ; preds = %18
  %29 = load i32, ptr %5, align 4, !tbaa !5
  %30 = add nsw i32 %29, 1
  store i32 %30, ptr %5, align 4, !tbaa !5
  br label %31

31:                                               ; preds = %28, %25
  %32 = load i32, ptr %5, align 4, !tbaa !5
  %33 = load i32, ptr %6, align 4, !tbaa !5
  %34 = icmp eq i32 %32, %33
  br i1 %34, label %35, label %51

35:                                               ; preds = %31
  %36 = load i32, ptr %3, align 4, !tbaa !5
  %37 = sext i32 %36 to i64
  %38 = getelementptr inbounds [100005 x i8], ptr %7, i64 0, i64 %37
  %39 = load i8, ptr %38, align 1, !tbaa !9
  %40 = sext i8 %39 to i32
  %41 = load i32, ptr %3, align 4, !tbaa !5
  %42 = add nsw i32 %41, 1
  %43 = sext i32 %42 to i64
  %44 = getelementptr inbounds [100005 x i8], ptr %7, i64 0, i64 %43
  %45 = load i8, ptr %44, align 1, !tbaa !9
  %46 = sext i8 %45 to i32
  %47 = icmp eq i32 %40, %46
  br i1 %47, label %48, label %51

48:                                               ; preds = %35
  %49 = load i32, ptr %4, align 4, !tbaa !5
  %50 = add nsw i32 %49, 1
  store i32 %50, ptr %4, align 4, !tbaa !5
  br label %51

51:                                               ; preds = %48, %35, %31
  br label %52

52:                                               ; preds = %51
  %53 = load i32, ptr %3, align 4, !tbaa !5
  %54 = add nsw i32 %53, 1
  store i32 %54, ptr %3, align 4, !tbaa !5
  br label %13, !llvm.loop !10

55:                                               ; preds = %13
  %56 = load i32, ptr %4, align 4, !tbaa !5
  %57 = call i32 (ptr, ...) @printf(ptr noundef @.str.1, i32 noundef %56)
  br label %8, !llvm.loop !12

58:                                               ; preds = %8
  call void @llvm.lifetime.end.p0(i64 100005, ptr %7) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #3
  call void @llvm.lifetime.end.p0(i64 4, 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

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

declare i32 @printf(ptr noundef, ...) #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 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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!7, !7, i64 0}
!10 = distinct !{!10, !11}
!11 = !{!"llvm.loop.mustprogress"}
!12 = distinct !{!12, !11}


; 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"

@.str = external hidden unnamed_addr constant [6 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [4 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 [100005 x i8], align 16
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %1) #3
  call void @llvm.lifetime.start.p0(i64 100005, ptr nonnull %2) #3
  %3 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %1, ptr noundef nonnull %2)
  %.not20 = icmp eq i32 %3, -1
  br i1 %.not20, label %._crit_edge21, label %.preheader

.preheader:                                       ; preds = %0, %._crit_edge
  %4 = load i32, ptr %1, align 4, !tbaa !5
  %5 = icmp sgt i32 %4, 1
  br i1 %5, label %.lr.ph.preheader, label %._crit_edge

.lr.ph.preheader:                                 ; preds = %.preheader
  %6 = add nsw i32 %4, -1
  %wide.trip.count = zext nneg i32 %6 to i64
  br label %.lr.ph

.lr.ph:                                           ; preds = %.lr.ph.preheader, %.lr.ph._crit_edge
  %indvars.iv = phi i64 [ 0, %.lr.ph.preheader ], [ %13, %.lr.ph._crit_edge ]
  %.019 = phi i32 [ 0, %.lr.ph.preheader ], [ %.1, %.lr.ph._crit_edge ]
  %.01118 = phi i32 [ 0, %.lr.ph.preheader ], [ %.112, %.lr.ph._crit_edge ]
  %.01317 = phi i32 [ 0, %.lr.ph.preheader ], [ %.114, %.lr.ph._crit_edge ]
  %7 = getelementptr inbounds [100005 x i8], ptr %2, i64 0, i64 %indvars.iv
  %8 = load i8, ptr %7, align 1, !tbaa !9
  %9 = icmp ne i8 %8, 85
  %10 = zext i1 %9 to i32
  %.112 = add nuw nsw i32 %.01118, %10
  %not. = xor i1 %9, true
  %11 = zext i1 %not. to i32
  %.1 = add nuw nsw i32 %.019, %11
  %12 = icmp eq i32 %.112, %.1
  %13 = add nuw nsw i64 %indvars.iv, 1
  br i1 %12, label %14, label %.lr.ph._crit_edge

14:                                               ; preds = %.lr.ph
  %15 = getelementptr inbounds [100005 x i8], ptr %2, i64 0, i64 %13
  %16 = load i8, ptr %15, align 1, !tbaa !9
  %17 = icmp eq i8 %8, %16
  %18 = zext i1 %17 to i32
  %spec.select = add nsw i32 %.01317, %18
  br label %.lr.ph._crit_edge

.lr.ph._crit_edge:                                ; preds = %.lr.ph, %14
  %.114 = phi i32 [ %spec.select, %14 ], [ %.01317, %.lr.ph ]
  %exitcond.not = icmp eq i64 %13, %wide.trip.count
  br i1 %exitcond.not, label %._crit_edge, label %.lr.ph, !llvm.loop !10

._crit_edge:                                      ; preds = %.lr.ph._crit_edge, %.preheader
  %.013.lcssa = phi i32 [ 0, %.preheader ], [ %.114, %.lr.ph._crit_edge ]
  %19 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.1, i32 noundef %.013.lcssa)
  %20 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %1, ptr noundef nonnull %2)
  %.not = icmp eq i32 %20, -1
  br i1 %.not, label %._crit_edge21, label %.preheader, !llvm.loop !12

._crit_edge21:                                    ; preds = %._crit_edge, %0
  call void @llvm.lifetime.end.p0(i64 100005, 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: 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

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


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