; LLVM IR from DionysiosB/CodeForces :: 0100-0199 (148B-Escape)

; 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 [20 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [5 x i8], align 1

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() #0 {
  %1 = alloca i32, align 4
  %2 = alloca double, align 8
  %3 = alloca double, align 8
  %4 = alloca double, align 8
  %5 = alloca double, align 8
  %6 = alloca double, align 8
  %7 = alloca double, align 8
  %8 = alloca i64, align 8
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 8, ptr %2) #4
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #4
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #4
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #4
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #4
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #4
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #4
  store i64 0, ptr %8, align 8, !tbaa !5
  %9 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %2, ptr noundef %3, ptr noundef %4, ptr noundef %5, ptr noundef %6)
  store i64 0, ptr %8, align 8, !tbaa !5
  %10 = load double, ptr %2, align 8, !tbaa !9
  %11 = load double, ptr %3, align 8, !tbaa !9
  %12 = fcmp olt double %10, %11
  br i1 %12, label %13, label %45

13:                                               ; preds = %0
  %14 = load double, ptr %3, align 8, !tbaa !9
  %15 = load double, ptr %2, align 8, !tbaa !9
  %16 = fmul double %14, %15
  %17 = load double, ptr %4, align 8, !tbaa !9
  %18 = fmul double %16, %17
  %19 = load double, ptr %3, align 8, !tbaa !9
  %20 = load double, ptr %2, align 8, !tbaa !9
  %21 = fsub double %19, %20
  %22 = fdiv double %18, %21
  store double %22, ptr %7, align 8, !tbaa !9
  br label %23

23:                                               ; preds = %27, %13
  %24 = load double, ptr %7, align 8, !tbaa !9
  %25 = load double, ptr %6, align 8, !tbaa !9
  %26 = fcmp olt double %24, %25
  br i1 %26, label %27, label %44

27:                                               ; preds = %23
  %28 = load double, ptr %3, align 8, !tbaa !9
  %29 = load double, ptr %7, align 8, !tbaa !9
  %30 = load double, ptr %2, align 8, !tbaa !9
  %31 = load double, ptr %5, align 8, !tbaa !9
  %32 = load double, ptr %7, align 8, !tbaa !9
  %33 = load double, ptr %3, align 8, !tbaa !9
  %34 = fdiv double %32, %33
  %35 = fadd double %31, %34
  %36 = call double @llvm.fmuladd.f64(double %30, double %35, double %29)
  %37 = fmul double %28, %36
  %38 = load double, ptr %3, align 8, !tbaa !9
  %39 = load double, ptr %2, align 8, !tbaa !9
  %40 = fsub double %38, %39
  %41 = fdiv double %37, %40
  store double %41, ptr %7, align 8, !tbaa !9
  %42 = load i64, ptr %8, align 8, !tbaa !5
  %43 = add nsw i64 %42, 1
  store i64 %43, ptr %8, align 8, !tbaa !5
  br label %23, !llvm.loop !11

44:                                               ; preds = %23
  br label %45

45:                                               ; preds = %44, %0
  %46 = load i64, ptr %8, align 8, !tbaa !5
  %47 = call i32 (ptr, ...) @printf(ptr noundef @.str.1, i64 noundef %46)
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %2) #4
  %48 = load i32, ptr %1, align 4
  ret i32 %48
}

; 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

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare double @llvm.fmuladd.f64(double, double, double) #3

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 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
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 = !{!"long", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"double", !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"

@.str = external hidden unnamed_addr constant [20 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [5 x i8], align 1

; Function Attrs: mustprogress nofree norecurse nounwind uwtable
define dso_local noundef i32 @main() local_unnamed_addr #0 {
  %1 = alloca double, align 8
  %2 = alloca double, align 8
  %3 = alloca double, align 8
  %4 = alloca double, align 8
  %5 = alloca double, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %1) #4
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %2) #4
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #4
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %4) #4
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %5) #4
  %6 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %1, ptr noundef nonnull %2, ptr noundef nonnull %3, ptr noundef nonnull %4, ptr noundef nonnull %5)
  %7 = load double, ptr %1, align 8, !tbaa !5
  %8 = load double, ptr %2, align 8, !tbaa !5
  %9 = fcmp olt double %7, %8
  br i1 %9, label %10, label %.loopexit

10:                                               ; preds = %0
  %11 = fmul double %7, %8
  %12 = load double, ptr %3, align 8, !tbaa !5
  %13 = fmul double %11, %12
  %14 = fsub double %8, %7
  %15 = load double, ptr %5, align 8, !tbaa !5
  %.058 = fdiv double %13, %14
  %16 = fcmp olt double %.058, %15
  br i1 %16, label %.lr.ph, label %.loopexit

.lr.ph:                                           ; preds = %10
  %17 = load double, ptr %4, align 8, !tbaa !5
  br label %18

18:                                               ; preds = %.lr.ph, %18
  %.0510 = phi double [ %.058, %.lr.ph ], [ %.05, %18 ]
  %.09 = phi i64 [ 0, %.lr.ph ], [ %23, %18 ]
  %19 = fdiv double %.0510, %8
  %20 = fadd double %19, %17
  %21 = call double @llvm.fmuladd.f64(double %7, double %20, double %.0510)
  %22 = fmul double %8, %21
  %23 = add nuw nsw i64 %.09, 1
  %.05 = fdiv double %22, %14
  %24 = fcmp olt double %.05, %15
  br i1 %24, label %18, label %.loopexit, !llvm.loop !9

.loopexit:                                        ; preds = %18, %10, %0
  %.1 = phi i64 [ 0, %0 ], [ 0, %10 ], [ %23, %18 ]
  %25 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.1, i64 noundef %.1)
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %5) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %1) #4
  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: mustprogress nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare double @llvm.fmuladd.f64(double, double, double) #3

; 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 = { mustprogress nocallback nofree nosync nounwind speculatable willreturn memory(none) }
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 = !{!"double", !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,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,JumpThreadingPass,LCSSAPass,LICMPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,ReassociatePass,SROAPass,SimplifyCFGPass