; LLVM IR from abeaumont/competitive-programming :: codeforces/1313/c2.ll (Z1mii)

; 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"

%"class.std::vector.0" = type { %"struct.std::_Vector_base.1" }
%"struct.std::_Vector_base.1" = type { %"struct.std::_Vector_base<std::vector<std::tuple<long long, long long>>, std::allocator<std::vector<std::tuple<long long, long long>>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::vector<std::tuple<long long, long long>>, std::allocator<std::vector<std::tuple<long long, long long>>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::vector<std::tuple<long long, long long>>, std::allocator<std::vector<std::tuple<long long, long long>>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::vector<std::tuple<long long, long long>>, std::allocator<std::vector<std::tuple<long long, long long>>>>::_Vector_impl_data" = type { ptr, ptr, ptr }

@t = external dso_local global %"class.std::vector.0", align 8

; 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 nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_ISt5tupleIJxxEESaIS1_EESaIS3_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt6vectorISt5tupleIJxxEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #1 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local noundef nonnull align 8 dereferenceable(16) ptr @_ZSt3minISt5tupleIJxxEEERKT_S4_S4_(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 8 dereferenceable(16)) #2

; Function Attrs: mustprogress uwtable
define dso_local noundef i32 @_Z1mii(i32 noundef %0, i32 noundef %1) #3 {
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  store i32 %0, ptr %3, align 4, !tbaa !5
  store i32 %1, ptr %4, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #4
  %8 = load i32, ptr %4, align 4, !tbaa !5
  %9 = load i32, ptr %3, align 4, !tbaa !5
  %10 = sub nsw i32 %8, %9
  %11 = add nsw i32 %10, 1
  store i32 %11, ptr %5, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #4
  store i32 0, ptr %6, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #4
  store i32 1, ptr %7, align 4, !tbaa !5
  br label %12

12:                                               ; preds = %18, %2
  %13 = load i32, ptr %7, align 4, !tbaa !5
  %14 = mul nsw i32 %13, 2
  %15 = load i32, ptr %5, align 4, !tbaa !5
  %16 = icmp sle i32 %14, %15
  br i1 %16, label %17, label %23

17:                                               ; preds = %12
  br label %18

18:                                               ; preds = %17
  %19 = load i32, ptr %6, align 4, !tbaa !5
  %20 = add nsw i32 %19, 1
  store i32 %20, ptr %6, align 4, !tbaa !5
  %21 = load i32, ptr %7, align 4, !tbaa !5
  %22 = mul nsw i32 %21, 2
  store i32 %22, ptr %7, align 4, !tbaa !5
  br label %12, !llvm.loop !9

23:                                               ; preds = %12
  %24 = load i32, ptr %6, align 4, !tbaa !5
  %25 = sext i32 %24 to i64
  %26 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_ISt5tupleIJxxEESaIS1_EESaIS3_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) @t, i64 noundef %25) #4
  %27 = load i32, ptr %3, align 4, !tbaa !5
  %28 = sext i32 %27 to i64
  %29 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt6vectorISt5tupleIJxxEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %26, i64 noundef %28) #4
  %30 = load i32, ptr %6, align 4, !tbaa !5
  %31 = sext i32 %30 to i64
  %32 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_ISt5tupleIJxxEESaIS1_EESaIS3_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) @t, i64 noundef %31) #4
  %33 = load i32, ptr %4, align 4, !tbaa !5
  %34 = load i32, ptr %7, align 4, !tbaa !5
  %35 = sub nsw i32 %33, %34
  %36 = add nsw i32 %35, 1
  %37 = sext i32 %36 to i64
  %38 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt6vectorISt5tupleIJxxEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %32, i64 noundef %37) #4
  %39 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZSt3minISt5tupleIJxxEEERKT_S4_S4_(ptr noundef nonnull align 8 dereferenceable(16) %29, ptr noundef nonnull align 8 dereferenceable(16) %38)
  %40 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZSt3getILm1EJxxEERKNSt13tuple_elementIXT_ESt5tupleIJDpT0_EEE4typeERKS4_(ptr noundef nonnull align 8 dereferenceable(16) %39) #4
  %41 = load i64, ptr %40, align 8, !tbaa !11
  %42 = trunc i64 %41 to i32
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #4
  ret i32 %42
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZSt3getILm1EJxxEERKNSt13tuple_elementIXT_ESt5tupleIJDpT0_EEE4typeERKS4_(ptr noundef nonnull align 8 dereferenceable(16)) #1

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 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"}
!11 = !{!12, !12, i64 0}
!12 = !{!"long long", !7, i64 0}


; 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"

%"class.std::vector.0" = type { %"struct.std::_Vector_base.1" }
%"struct.std::_Vector_base.1" = type { %"struct.std::_Vector_base<std::vector<std::tuple<long long, long long>>, std::allocator<std::vector<std::tuple<long long, long long>>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::vector<std::tuple<long long, long long>>, std::allocator<std::vector<std::tuple<long long, long long>>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::vector<std::tuple<long long, long long>>, std::allocator<std::vector<std::tuple<long long, long long>>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::vector<std::tuple<long long, long long>>, std::allocator<std::vector<std::tuple<long long, long long>>>>::_Vector_impl_data" = type { ptr, ptr, ptr }

@t = external dso_local global %"class.std::vector.0", align 8

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_ISt5tupleIJxxEESaIS1_EESaIS3_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt6vectorISt5tupleIJxxEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #0 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local noundef nonnull align 8 dereferenceable(16) ptr @_ZSt3minISt5tupleIJxxEEERKT_S4_S4_(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 8 dereferenceable(16)) local_unnamed_addr #1

; Function Attrs: mustprogress uwtable
define dso_local noundef i32 @_Z1mii(i32 noundef %0, i32 noundef %1) local_unnamed_addr #2 {
  %reass.sub = sub i32 %1, %0
  %3 = add i32 %reass.sub, 1
  br label %4

4:                                                ; preds = %4, %2
  %.011 = phi i32 [ 0, %2 ], [ %6, %4 ]
  %.0 = phi i32 [ 1, %2 ], [ %5, %4 ]
  %5 = shl nsw i32 %.0, 1
  %.not = icmp sgt i32 %5, %3
  %6 = add nuw nsw i32 %.011, 1
  br i1 %.not, label %7, label %4, !llvm.loop !5

7:                                                ; preds = %4
  %8 = zext nneg i32 %.011 to i64
  %9 = tail call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_ISt5tupleIJxxEESaIS1_EESaIS3_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) @t, i64 noundef %8) #3
  %10 = sext i32 %0 to i64
  %11 = tail call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt6vectorISt5tupleIJxxEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %9, i64 noundef %10) #3
  %12 = tail call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_ISt5tupleIJxxEESaIS1_EESaIS3_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) @t, i64 noundef %8) #3
  %13 = add i32 %1, 1
  %14 = sub i32 %13, %.0
  %15 = sext i32 %14 to i64
  %16 = tail call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt6vectorISt5tupleIJxxEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %12, i64 noundef %15) #3
  %17 = tail call noundef nonnull align 8 dereferenceable(16) ptr @_ZSt3minISt5tupleIJxxEEERKT_S4_S4_(ptr noundef nonnull align 8 dereferenceable(16) %11, ptr noundef nonnull align 8 dereferenceable(16) %16)
  %18 = tail call noundef nonnull align 8 dereferenceable(8) ptr @_ZSt3getILm1EJxxEERKNSt13tuple_elementIXT_ESt5tupleIJDpT0_EEE4typeERKS4_(ptr noundef nonnull align 8 dereferenceable(16) %17) #3
  %19 = load i64, ptr %18, align 8, !tbaa !7
  %20 = trunc i64 %19 to i32
  ret i32 %20
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZSt3getILm1EJxxEERKNSt13tuple_elementIXT_ESt5tupleIJDpT0_EEE4typeERKS4_(ptr noundef nonnull align 8 dereferenceable(16)) local_unnamed_addr #0

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 = { inlinehint 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 #2 = { 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 #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 = distinct !{!5, !6}
!6 = !{!"llvm.loop.mustprogress"}
!7 = !{!8, !8, i64 0}
!8 = !{!"long long", !9, i64 0}
!9 = !{!"omnipotent char", !10, i64 0}
!10 = !{!"Simple C++ TBAA"}


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