; LLVM IR from kazunetakahashi/atcoder :: 201510_201609/0924_code_fes_2016_qualA/D2.ll (Z7calc_saii)

; 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::map" = type { %"class.std::_Rb_tree" }
%"class.std::_Rb_tree" = type { %"struct.std::_Rb_tree<int, std::pair<const int, long long>, std::_Select1st<std::pair<const int, long long>>, std::less<int>>::_Rb_tree_impl" }
%"struct.std::_Rb_tree<int, std::pair<const int, long long>, std::_Select1st<std::pair<const int, long long>>, std::less<int>>::_Rb_tree_impl" = type { [8 x i8], %"struct.std::_Rb_tree_header" }
%"struct.std::_Rb_tree_header" = type { %"struct.std::_Rb_tree_node_base", i64 }
%"struct.std::_Rb_tree_node_base" = type { i32, ptr, ptr, ptr }

@W = external dso_local global [100010 x %"class.std::map"], align 16
@ind = external dso_local global [100010 x i32], align 16

; Function Attrs: mustprogress uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt3mapIixSt4lessIiESaISt4pairIKixEEEixERS3_(ptr noundef nonnull align 8 dereferenceable(48), ptr noundef nonnull align 4 dereferenceable(4)) #0 align 2

; Function Attrs: mustprogress uwtable
define dso_local noundef i64 @_Z7calc_saii(i32 noundef %0, i32 noundef %1) #0 {
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  store i32 %0, ptr %3, align 4, !tbaa !5
  store i32 %1, ptr %4, align 4, !tbaa !5
  %5 = load i32, ptr %4, align 4, !tbaa !5
  %6 = sext i32 %5 to i64
  %7 = getelementptr inbounds [100010 x i32], ptr @ind, i64 0, i64 %6
  %8 = load i32, ptr %7, align 4, !tbaa !5
  %9 = sext i32 %8 to i64
  %10 = getelementptr inbounds [100010 x %"class.std::map"], ptr @W, i64 0, i64 %9
  %11 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt3mapIixSt4lessIiESaISt4pairIKixEEEixERS3_(ptr noundef nonnull align 8 dereferenceable(48) %10, ptr noundef nonnull align 4 dereferenceable(4) %4)
  %12 = load i64, ptr %11, align 8, !tbaa !9
  %13 = load i32, ptr %3, align 4, !tbaa !5
  %14 = sext i32 %13 to i64
  %15 = getelementptr inbounds [100010 x i32], ptr @ind, i64 0, i64 %14
  %16 = load i32, ptr %15, align 4, !tbaa !5
  %17 = sext i32 %16 to i64
  %18 = getelementptr inbounds [100010 x %"class.std::map"], ptr @W, i64 0, i64 %17
  %19 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt3mapIixSt4lessIiESaISt4pairIKixEEEixERS3_(ptr noundef nonnull align 8 dereferenceable(48) %18, ptr noundef nonnull align 4 dereferenceable(4) %3)
  %20 = load i64, ptr %19, align 8, !tbaa !9
  %21 = sub nsw i64 %12, %20
  ret i64 %21
}

attributes #0 = { 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" }

!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 = !{!10, !10, i64 0}
!10 = !{!"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::map" = type { %"class.std::_Rb_tree" }
%"class.std::_Rb_tree" = type { %"struct.std::_Rb_tree<int, std::pair<const int, long long>, std::_Select1st<std::pair<const int, long long>>, std::less<int>>::_Rb_tree_impl" }
%"struct.std::_Rb_tree<int, std::pair<const int, long long>, std::_Select1st<std::pair<const int, long long>>, std::less<int>>::_Rb_tree_impl" = type { [8 x i8], %"struct.std::_Rb_tree_header" }
%"struct.std::_Rb_tree_header" = type { %"struct.std::_Rb_tree_node_base", i64 }
%"struct.std::_Rb_tree_node_base" = type { i32, ptr, ptr, ptr }

@W = external dso_local global [100010 x %"class.std::map"], align 16
@ind = external dso_local local_unnamed_addr global [100010 x i32], align 16

; Function Attrs: mustprogress uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt3mapIixSt4lessIiESaISt4pairIKixEEEixERS3_(ptr noundef nonnull align 8 dereferenceable(48), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
define dso_local noundef i64 @_Z7calc_saii(i32 noundef %0, i32 noundef %1) local_unnamed_addr #0 {
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  store i32 %0, ptr %3, align 4, !tbaa !5
  store i32 %1, ptr %4, align 4, !tbaa !5
  %5 = sext i32 %1 to i64
  %6 = getelementptr inbounds [100010 x i32], ptr @ind, i64 0, i64 %5
  %7 = load i32, ptr %6, align 4, !tbaa !5
  %8 = sext i32 %7 to i64
  %9 = getelementptr inbounds [100010 x %"class.std::map"], ptr @W, i64 0, i64 %8
  %10 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt3mapIixSt4lessIiESaISt4pairIKixEEEixERS3_(ptr noundef nonnull align 8 dereferenceable(48) %9, ptr noundef nonnull align 4 dereferenceable(4) %4)
  %11 = load i64, ptr %10, align 8, !tbaa !9
  %12 = sext i32 %0 to i64
  %13 = getelementptr inbounds [100010 x i32], ptr @ind, i64 0, i64 %12
  %14 = load i32, ptr %13, align 4, !tbaa !5
  %15 = sext i32 %14 to i64
  %16 = getelementptr inbounds [100010 x %"class.std::map"], ptr @W, i64 0, i64 %15
  %17 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt3mapIixSt4lessIiESaISt4pairIKixEEEixERS3_(ptr noundef nonnull align 8 dereferenceable(48) %16, ptr noundef nonnull align 4 dereferenceable(4) %3)
  %18 = load i64, ptr %17, align 8, !tbaa !9
  %19 = sub nsw i64 %11, %18
  ret i64 %19
}

attributes #0 = { 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" }

!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 = !{!10, !10, i64 0}
!10 = !{!"long long", !7, i64 0}


; Effective O3 passes: EarlyCSEPass,GVNPass,GlobalOptPass