; LLVM IR from bqi343/cp-notebook :: Contests/USACO Solutions/2007-08/treasure.ll (Z7getHashi)

; 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"

%struct.hsh = type { %"class.std::vector", %"class.std::vector", %"class.std::vector", %"class.std::vector", %"struct.std::pair", %"struct.std::pair" }
%"class.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<std::pair<int, int>, std::allocator<std::pair<int, int>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::pair<int, int>, std::allocator<std::pair<int, int>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::pair<int, int>, std::allocator<std::pair<int, int>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::pair<int, int>, std::allocator<std::pair<int, int>>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"struct.std::pair" = type { i32, i32 }
%"class.std::vector.3" = type { %"struct.std::_Vector_base.4" }
%"struct.std::_Vector_base.4" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" = type { ptr, ptr, ptr }

@leftHsh = external dso_local global %struct.hsh, align 8
@rightHsh = external dso_local global %struct.hsh, align 8
@cyc = external dso_local global %"class.std::vector.3", 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: nocallback nofree nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #1

; Function Attrs: mustprogress uwtable
define dso_local i64 @_Z7getHashi(i32 noundef %0) #2 {
  %2 = alloca %"struct.std::pair", align 4
  %3 = alloca i32, align 4
  %4 = alloca %"struct.std::pair", align 4
  %5 = alloca %"struct.std::pair", align 4
  store i32 %0, ptr %3, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #5
  %6 = load i32, ptr %3, align 4, !tbaa !5
  %7 = add nsw i32 %6, 1
  %8 = load i32, ptr %3, align 4, !tbaa !5
  %9 = call noundef i64 @_ZNKSt6vectorIiSaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) @cyc) #5
  %10 = trunc i64 %9 to i32
  %11 = add nsw i32 %8, %10
  %12 = sub nsw i32 %11, 1
  %13 = call i64 @_ZN3hsh3getEii(ptr noundef nonnull align 8 dereferenceable(112) @leftHsh, i32 noundef %7, i32 noundef %12)
  store i64 %13, ptr %4, align 4
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #5
  %14 = call noundef i64 @_ZNKSt6vectorIiSaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) @cyc) #5
  %15 = trunc i64 %14 to i32
  %16 = mul nsw i32 2, %15
  %17 = sub nsw i32 %16, 1
  %18 = load i32, ptr %3, align 4, !tbaa !5
  %19 = call noundef i64 @_ZNKSt6vectorIiSaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) @cyc) #5
  %20 = trunc i64 %19 to i32
  %21 = add nsw i32 %18, %20
  %22 = sub nsw i32 %21, 1
  %23 = sub nsw i32 %17, %22
  %24 = call noundef i64 @_ZNKSt6vectorIiSaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) @cyc) #5
  %25 = trunc i64 %24 to i32
  %26 = mul nsw i32 2, %25
  %27 = sub nsw i32 %26, 1
  %28 = load i32, ptr %3, align 4, !tbaa !5
  %29 = add nsw i32 %28, 1
  %30 = sub nsw i32 %27, %29
  %31 = call i64 @_ZN3hsh3getEii(ptr noundef nonnull align 8 dereferenceable(112) @rightHsh, i32 noundef %23, i32 noundef %30)
  store i64 %31, ptr %5, align 4
  %32 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZSt3minISt4pairIiiEERKT_S4_S4_(ptr noundef nonnull align 4 dereferenceable(8) %4, ptr noundef nonnull align 4 dereferenceable(8) %5)
  call void @llvm.memcpy.p0.p0.i64(ptr align 4 %2, ptr align 4 %32, i64 8, i1 false)
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #5
  %33 = load i64, ptr %2, align 4
  ret i64 %33
}

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local noundef nonnull align 4 dereferenceable(8) ptr @_ZSt3minISt4pairIiiEERKT_S4_S4_(ptr noundef nonnull align 4 dereferenceable(8), ptr noundef nonnull align 4 dereferenceable(8)) #3

; Function Attrs: mustprogress uwtable
declare dso_local i64 @_ZN3hsh3getEii(ptr noundef nonnull align 8 dereferenceable(112), i32 noundef, i32 noundef) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt6vectorIiSaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) #4 align 2

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
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 = { 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 #4 = { 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 #5 = { 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"}


; 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"

%struct.hsh = type { %"class.std::vector", %"class.std::vector", %"class.std::vector", %"class.std::vector", %"struct.std::pair", %"struct.std::pair" }
%"class.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<std::pair<int, int>, std::allocator<std::pair<int, int>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::pair<int, int>, std::allocator<std::pair<int, int>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::pair<int, int>, std::allocator<std::pair<int, int>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::pair<int, int>, std::allocator<std::pair<int, int>>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"struct.std::pair" = type { i32, i32 }
%"class.std::vector.3" = type { %"struct.std::_Vector_base.4" }
%"struct.std::_Vector_base.4" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" = type { ptr, ptr, ptr }

@leftHsh = external dso_local global %struct.hsh, align 8
@rightHsh = external dso_local global %struct.hsh, align 8
@cyc = external dso_local global %"class.std::vector.3", align 8

; 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 uwtable
define dso_local i64 @_Z7getHashi(i32 noundef %0) local_unnamed_addr #1 {
  %2 = alloca %"struct.std::pair", align 8
  %3 = alloca %"struct.std::pair", align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %2) #4
  %4 = add nsw i32 %0, 1
  %5 = tail call noundef i64 @_ZNKSt6vectorIiSaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) @cyc) #4
  %6 = trunc i64 %5 to i32
  %7 = add i32 %0, -1
  %8 = add i32 %7, %6
  %9 = tail call i64 @_ZN3hsh3getEii(ptr noundef nonnull align 8 dereferenceable(112) @leftHsh, i32 noundef %4, i32 noundef %8)
  store i64 %9, ptr %2, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #4
  %10 = tail call noundef i64 @_ZNKSt6vectorIiSaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) @cyc) #4
  %11 = trunc i64 %10 to i32
  %12 = shl nsw i32 %11, 1
  %13 = tail call noundef i64 @_ZNKSt6vectorIiSaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) @cyc) #4
  %14 = trunc i64 %13 to i32
  %15 = add i32 %14, %0
  %16 = sub i32 %12, %15
  %17 = tail call noundef i64 @_ZNKSt6vectorIiSaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) @cyc) #4
  %18 = trunc i64 %17 to i32
  %19 = shl nsw i32 %18, 1
  %reass.sub6 = sub i32 %19, %0
  %20 = add i32 %reass.sub6, -2
  %21 = tail call i64 @_ZN3hsh3getEii(ptr noundef nonnull align 8 dereferenceable(112) @rightHsh, i32 noundef %16, i32 noundef %20)
  store i64 %21, ptr %3, align 8
  %22 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZSt3minISt4pairIiiEERKT_S4_S4_(ptr noundef nonnull align 4 dereferenceable(8) %2, ptr noundef nonnull align 4 dereferenceable(8) %3)
  %.sroa.0.0.copyload = load i64, ptr %22, align 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
  ret i64 %.sroa.0.0.copyload
}

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local noundef nonnull align 4 dereferenceable(8) ptr @_ZSt3minISt4pairIiiEERKT_S4_S4_(ptr noundef nonnull align 4 dereferenceable(8), ptr noundef nonnull align 4 dereferenceable(8)) local_unnamed_addr #2

; Function Attrs: mustprogress uwtable
declare dso_local i64 @_ZN3hsh3getEii(ptr noundef nonnull align 8 dereferenceable(112), i32 noundef, i32 noundef) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt6vectorIiSaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #3 align 2

attributes #0 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 = { 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 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 #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)"}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,InferAlignmentPass,InferFunctionAttrsPass,InstCombinePass,ReassociatePass,SROAPass,TailCallElimPass