; LLVM IR from UBIC-repo/core :: PathSum/PathSum.ll (ZN7PathSum8popValueEm)

; 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.PathSum = type { %"class.std::map.0", %"class.std::map.0", %"class.std::map.0", %"class.std::map.0", %"class.std::map.0", %"class.std::map.0", %"class.std::map.0", i64, i64, i64, i64, i64, i64 }
%"class.std::map.0" = type { %"class.std::_Rb_tree.1" }
%"class.std::_Rb_tree.1" = type { %"struct.std::_Rb_tree<unsigned long, std::pair<const unsigned long, UAmount>, std::_Select1st<std::pair<const unsigned long, UAmount>>, std::less<unsigned long>>::_Rb_tree_impl" }
%"struct.std::_Rb_tree<unsigned long, std::pair<const unsigned long, UAmount>, std::_Select1st<std::pair<const unsigned long, UAmount>>, std::less<unsigned long>>::_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 }

; 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 uwtable
define dso_local noundef zeroext i1 @_ZN7PathSum8popValueEm(ptr noundef nonnull align 8 dereferenceable(384) %0, i64 noundef %1) #1 align 2 {
  %3 = alloca ptr, align 8
  %4 = alloca i64, align 8
  %5 = alloca i64, align 8
  %6 = alloca i64, align 8
  store ptr %0, ptr %3, align 8, !tbaa !5
  store i64 %1, ptr %4, align 8, !tbaa !9
  %7 = load ptr, ptr %3, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #3
  %8 = call noundef i64 @_ZN7PathSum14getStackHeightEv(ptr noundef nonnull align 8 dereferenceable(384) %7)
  store i64 %8, ptr %5, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #3
  %9 = load i64, ptr %5, align 8, !tbaa !9
  store i64 %9, ptr %6, align 8, !tbaa !9
  br label %10

10:                                               ; preds = %20, %2
  %11 = load i64, ptr %6, align 8, !tbaa !9
  %12 = load i64, ptr %5, align 8, !tbaa !9
  %13 = load i64, ptr %4, align 8, !tbaa !9
  %14 = sub i64 %12, %13
  %15 = icmp ugt i64 %11, %14
  br i1 %15, label %17, label %16

16:                                               ; preds = %10
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #3
  br label %23

17:                                               ; preds = %10
  %18 = getelementptr inbounds %class.PathSum, ptr %7, i32 0, i32 0
  %19 = call noundef i64 @_ZNSt3mapIm7UAmountSt4lessImESaISt4pairIKmS0_EEE5eraseERS4_(ptr noundef nonnull align 8 dereferenceable(48) %18, ptr noundef nonnull align 8 dereferenceable(8) %6)
  br label %20

20:                                               ; preds = %17
  %21 = load i64, ptr %6, align 8, !tbaa !9
  %22 = add i64 %21, -1
  store i64 %22, ptr %6, align 8, !tbaa !9
  br label %10, !llvm.loop !11

23:                                               ; preds = %16
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #3
  ret i1 true
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZN7PathSum14getStackHeightEv(ptr noundef nonnull align 8 dereferenceable(384)) #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local noundef i64 @_ZNSt3mapIm7UAmountSt4lessImESaISt4pairIKmS0_EEE5eraseERS4_(ptr noundef nonnull align 8 dereferenceable(48), ptr noundef nonnull align 8 dereferenceable(8)) #1 align 2

attributes #0 = { 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 = { 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 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"long", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"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 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 noundef zeroext i1 @_ZN7PathSum8popValueEm(ptr noundef nonnull align 8 dereferenceable(384) %0, i64 noundef %1) local_unnamed_addr #1 align 2 {
  %3 = alloca i64, align 8
  %4 = tail call noundef i64 @_ZN7PathSum14getStackHeightEv(ptr noundef nonnull align 8 dereferenceable(384) %0)
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #3
  %5 = sub i64 %4, %1
  store i64 %4, ptr %3, align 8, !tbaa !5
  %6 = icmp ugt i64 %4, %5
  br i1 %6, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %.lr.ph, %2
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #3
  ret i1 true

.lr.ph:                                           ; preds = %2, %.lr.ph
  %7 = call noundef i64 @_ZNSt3mapIm7UAmountSt4lessImESaISt4pairIKmS0_EEE5eraseERS4_(ptr noundef nonnull align 8 dereferenceable(48) %0, ptr noundef nonnull align 8 dereferenceable(8) %3)
  %8 = load i64, ptr %3, align 8, !tbaa !5
  %9 = add i64 %8, -1
  store i64 %9, ptr %3, align 8, !tbaa !5
  %10 = icmp ugt i64 %9, %5
  br i1 %10, label %.lr.ph, label %._crit_edge, !llvm.loop !9
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZN7PathSum14getStackHeightEv(ptr noundef nonnull align 8 dereferenceable(384)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local noundef i64 @_ZNSt3mapIm7UAmountSt4lessImESaISt4pairIKmS0_EEE5eraseERS4_(ptr noundef nonnull align 8 dereferenceable(48), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #1 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 = { 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 = !{!"long", !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,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LICMPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,SROAPass,SimplifyCFGPass,TailCallElimPass