; LLVM IR from VastoLorde95/Competitive-Programming :: Codeforces/199 Division 2/Problem E/E.ll (Z5queryi)

; 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"

@par = external dso_local global [131072 x i32], align 16
@level = external dso_local global [131072 x i32], align 16
@ans = external dso_local global [131072 x i32], align 16

; 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
declare dso_local noundef i32 @_Z3lcaii(i32 noundef, i32 noundef) #1

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3minIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) #2

; Function Attrs: mustprogress uwtable
define dso_local noundef i32 @_Z5queryi(i32 noundef %0) #3 {
  %2 = alloca i32, align 4
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  store i32 %0, ptr %2, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #4
  %6 = load i32, ptr %2, align 4, !tbaa !5
  store i32 %6, ptr %3, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #4
  %7 = load i32, ptr %2, align 4, !tbaa !5
  %8 = sext i32 %7 to i64
  %9 = getelementptr inbounds [131072 x i32], ptr @ans, i64 0, i64 %8
  %10 = load i32, ptr %9, align 4, !tbaa !5
  store i32 %10, ptr %4, align 4, !tbaa !5
  br label %11

11:                                               ; preds = %44, %1
  br label %12

12:                                               ; preds = %11
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #4
  %13 = load i32, ptr %3, align 4, !tbaa !5
  %14 = sext i32 %13 to i64
  %15 = getelementptr inbounds [131072 x i32], ptr @level, i64 0, i64 %14
  %16 = load i32, ptr %15, align 4, !tbaa !5
  %17 = load i32, ptr %2, align 4, !tbaa !5
  %18 = sext i32 %17 to i64
  %19 = getelementptr inbounds [131072 x i32], ptr @level, i64 0, i64 %18
  %20 = load i32, ptr %19, align 4, !tbaa !5
  %21 = add nsw i32 %16, %20
  %22 = load i32, ptr %2, align 4, !tbaa !5
  %23 = load i32, ptr %3, align 4, !tbaa !5
  %24 = call noundef i32 @_Z3lcaii(i32 noundef %22, i32 noundef %23)
  %25 = sext i32 %24 to i64
  %26 = getelementptr inbounds [131072 x i32], ptr @level, i64 0, i64 %25
  %27 = load i32, ptr %26, align 4, !tbaa !5
  %28 = mul nsw i32 2, %27
  %29 = sub nsw i32 %21, %28
  %30 = load i32, ptr %3, align 4, !tbaa !5
  %31 = sext i32 %30 to i64
  %32 = getelementptr inbounds [131072 x i32], ptr @ans, i64 0, i64 %31
  %33 = load i32, ptr %32, align 4, !tbaa !5
  %34 = add nsw i32 %29, %33
  store i32 %34, ptr %5, align 4, !tbaa !5
  %35 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3minIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4) %4, ptr noundef nonnull align 4 dereferenceable(4) %5)
  %36 = load i32, ptr %35, align 4, !tbaa !5
  store i32 %36, ptr %4, align 4, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #4
  %37 = load i32, ptr %3, align 4, !tbaa !5
  %38 = load i32, ptr %3, align 4, !tbaa !5
  %39 = sext i32 %38 to i64
  %40 = getelementptr inbounds [131072 x i32], ptr @par, i64 0, i64 %39
  %41 = load i32, ptr %40, align 4, !tbaa !5
  %42 = icmp eq i32 %37, %41
  br i1 %42, label %43, label %44

43:                                               ; preds = %12
  br label %49

44:                                               ; preds = %12
  %45 = load i32, ptr %3, align 4, !tbaa !5
  %46 = sext i32 %45 to i64
  %47 = getelementptr inbounds [131072 x i32], ptr @par, i64 0, i64 %46
  %48 = load i32, ptr %47, align 4, !tbaa !5
  store i32 %48, ptr %3, align 4, !tbaa !5
  br label %11, !llvm.loop !9

49:                                               ; preds = %43
  %50 = load i32, ptr %4, align 4, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #4
  ret i32 %50
}

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 = { inlinehint 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 #3 = { mustprogress 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 #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 = !{!"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"

@par = external dso_local local_unnamed_addr global [131072 x i32], align 16
@level = external dso_local local_unnamed_addr global [131072 x i32], align 16
@ans = external dso_local local_unnamed_addr global [131072 x i32], align 16

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i32 @_Z3lcaii(i32 noundef, i32 noundef) local_unnamed_addr #1

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3minIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #2

; Function Attrs: mustprogress nounwind uwtable
define dso_local noundef i32 @_Z5queryi(i32 noundef %0) local_unnamed_addr #1 {
  %2 = alloca i32, align 4
  %3 = alloca i32, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %2) #3
  %4 = sext i32 %0 to i64
  %5 = getelementptr inbounds [131072 x i32], ptr @ans, i64 0, i64 %4
  %6 = load i32, ptr %5, align 4, !tbaa !5
  store i32 %6, ptr %2, align 4, !tbaa !5
  %7 = getelementptr inbounds [131072 x i32], ptr @level, i64 0, i64 %4
  br label %8

8:                                                ; preds = %8, %1
  %.0 = phi i32 [ %0, %1 ], [ %26, %8 ]
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %3) #3
  %9 = sext i32 %.0 to i64
  %10 = getelementptr inbounds [131072 x i32], ptr @level, i64 0, i64 %9
  %11 = load i32, ptr %10, align 4, !tbaa !5
  %12 = load i32, ptr %7, align 4, !tbaa !5
  %13 = add nsw i32 %12, %11
  %14 = call noundef i32 @_Z3lcaii(i32 noundef %0, i32 noundef %.0)
  %15 = sext i32 %14 to i64
  %16 = getelementptr inbounds [131072 x i32], ptr @level, i64 0, i64 %15
  %17 = load i32, ptr %16, align 4, !tbaa !5
  %18 = shl i32 %17, 1
  %19 = sub i32 %13, %18
  %20 = getelementptr inbounds [131072 x i32], ptr @ans, i64 0, i64 %9
  %21 = load i32, ptr %20, align 4, !tbaa !5
  %22 = add nsw i32 %19, %21
  store i32 %22, ptr %3, align 4, !tbaa !5
  %23 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3minIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4) %2, ptr noundef nonnull align 4 dereferenceable(4) %3)
  %24 = load i32, ptr %23, align 4, !tbaa !5
  store i32 %24, ptr %2, align 4, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %3) #3
  %25 = getelementptr inbounds [131072 x i32], ptr @par, i64 0, i64 %9
  %26 = load i32, ptr %25, align 4, !tbaa !5
  %27 = icmp eq i32 %.0, %26
  br i1 %27, label %28, label %8, !llvm.loop !9

28:                                               ; preds = %8
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %2) #3
  ret i32 %24
}

attributes #0 = { mustprogress 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 = { inlinehint 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 #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 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: EarlyCSEPass,GVNPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,LCSSAPass,LICMPass,LoopUnrollPass,PostOrderFunctionAttrsPass,ReassociatePass,SROAPass,SimplifyCFGPass