; LLVM IR from xirc/cp-algorithm :: atcoder/abc148/E/main.ll (Z5solvel)

; 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 i64 @_Z5solvel(i64 noundef %0) #0 {
  %2 = alloca i64, align 8
  %3 = alloca i64, align 8
  %4 = alloca i64, align 8
  %5 = alloca i64, align 8
  %6 = alloca i64, align 8
  store i64 %0, ptr %3, align 8, !tbaa !5
  %7 = load i64, ptr %3, align 8, !tbaa !5
  %8 = srem i64 %7, 2
  %9 = icmp eq i64 %8, 1
  br i1 %9, label %10, label %11

10:                                               ; preds = %1
  store i64 0, ptr %2, align 8
  br label %28

11:                                               ; preds = %1
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #2
  store i64 0, ptr %4, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #2
  store i64 10, ptr %5, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #2
  store i64 10, ptr %6, align 8, !tbaa !5
  br label %12

12:                                               ; preds = %23, %11
  %13 = load i64, ptr %6, align 8, !tbaa !5
  %14 = load i64, ptr %3, align 8, !tbaa !5
  %15 = icmp sle i64 %13, %14
  br i1 %15, label %17, label %16

16:                                               ; preds = %12
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #2
  br label %26

17:                                               ; preds = %12
  %18 = load i64, ptr %3, align 8, !tbaa !5
  %19 = load i64, ptr %6, align 8, !tbaa !5
  %20 = sdiv i64 %18, %19
  %21 = load i64, ptr %4, align 8, !tbaa !5
  %22 = add nsw i64 %21, %20
  store i64 %22, ptr %4, align 8, !tbaa !5
  br label %23

23:                                               ; preds = %17
  %24 = load i64, ptr %6, align 8, !tbaa !5
  %25 = mul nsw i64 %24, 5
  store i64 %25, ptr %6, align 8, !tbaa !5
  br label %12, !llvm.loop !9

26:                                               ; preds = %16
  %27 = load i64, ptr %4, align 8, !tbaa !5
  store i64 %27, ptr %2, align 8
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #2
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #2
  br label %28

28:                                               ; preds = %26, %10
  %29 = load i64, ptr %2, align 8
  ret i64 %29
}

; 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 = !{!"long", !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 i64 @_Z5solvel(i64 noundef %0) local_unnamed_addr #0 {
  %2 = and i64 %0, -9223372036854775807
  %3 = icmp eq i64 %2, 1
  %.not12 = icmp slt i64 %0, 10
  %or.cond = or i1 %3, %.not12
  br i1 %or.cond, label %.loopexit, label %.lr.ph

.lr.ph:                                           ; preds = %1, %.lr.ph
  %.014 = phi i64 [ %6, %.lr.ph ], [ 10, %1 ]
  %.01013 = phi i64 [ %5, %.lr.ph ], [ 0, %1 ]
  %4 = udiv i64 %0, %.014
  %5 = add nuw nsw i64 %4, %.01013
  %6 = mul nuw nsw i64 %.014, 5
  %.not = icmp sgt i64 %6, %0
  br i1 %.not, label %.loopexit, label %.lr.ph, !llvm.loop !5

.loopexit:                                        ; preds = %.lr.ph, %1
  %.09 = phi i64 [ 0, %1 ], [ %5, %.lr.ph ]
  ret i64 %.09
}

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: GVNPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,JumpThreadingPass,LCSSAPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,ReassociatePass,SROAPass,SimplifyCFGPass