; LLVM IR from yudi-matsuzake/libgenerics :: src (graph)

; 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.graph_t = type { i64, i64, i64, 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: nounwind uwtable
define dso_local i32 @graph_get_label_at(ptr noundef %0, i64 noundef %1, ptr noundef %2) #1 {
  %4 = alloca i32, align 4
  %5 = alloca ptr, align 8
  %6 = alloca i64, align 8
  %7 = alloca ptr, align 8
  %8 = alloca ptr, align 8
  store ptr %0, ptr %5, align 8, !tbaa !5
  store i64 %1, ptr %6, align 8, !tbaa !9
  store ptr %2, ptr %7, align 8, !tbaa !5
  %9 = load ptr, ptr %5, align 8, !tbaa !5
  %10 = icmp ne ptr %9, null
  br i1 %10, label %12, label %11

11:                                               ; preds = %3
  store i32 1, ptr %4, align 4
  br label %48

12:                                               ; preds = %3
  %13 = load i64, ptr %6, align 8, !tbaa !9
  %14 = load ptr, ptr %5, align 8, !tbaa !5
  %15 = getelementptr inbounds %struct.graph_t, ptr %14, i32 0, i32 0
  %16 = load i64, ptr %15, align 8, !tbaa !11
  %17 = icmp uge i64 %13, %16
  br i1 %17, label %18, label %19

18:                                               ; preds = %12
  store i32 7, ptr %4, align 4
  br label %48

19:                                               ; preds = %12
  %20 = load ptr, ptr %5, align 8, !tbaa !5
  %21 = getelementptr inbounds %struct.graph_t, ptr %20, i32 0, i32 4
  %22 = load ptr, ptr %21, align 8, !tbaa !13
  %23 = icmp ne ptr %22, null
  br i1 %23, label %24, label %47

24:                                               ; preds = %19
  %25 = load ptr, ptr %5, align 8, !tbaa !5
  %26 = getelementptr inbounds %struct.graph_t, ptr %25, i32 0, i32 2
  %27 = load i64, ptr %26, align 8, !tbaa !14
  %28 = icmp ne i64 %27, 0
  br i1 %28, label %29, label %47

29:                                               ; preds = %24
  %30 = load ptr, ptr %7, align 8, !tbaa !5
  %31 = icmp ne ptr %30, null
  br i1 %31, label %32, label %47

32:                                               ; preds = %29
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #3
  %33 = load ptr, ptr %5, align 8, !tbaa !5
  %34 = getelementptr inbounds %struct.graph_t, ptr %33, i32 0, i32 4
  %35 = load ptr, ptr %34, align 8, !tbaa !13
  %36 = load i64, ptr %6, align 8, !tbaa !9
  %37 = load ptr, ptr %5, align 8, !tbaa !5
  %38 = getelementptr inbounds %struct.graph_t, ptr %37, i32 0, i32 2
  %39 = load i64, ptr %38, align 8, !tbaa !14
  %40 = mul i64 %36, %39
  %41 = getelementptr inbounds i8, ptr %35, i64 %40
  store ptr %41, ptr %8, align 8, !tbaa !5
  %42 = load ptr, ptr %7, align 8, !tbaa !5
  %43 = load ptr, ptr %8, align 8, !tbaa !5
  %44 = load ptr, ptr %5, align 8, !tbaa !5
  %45 = getelementptr inbounds %struct.graph_t, ptr %44, i32 0, i32 2
  %46 = load i64, ptr %45, align 8, !tbaa !14
  call void @llvm.memcpy.p0.p0.i64(ptr align 1 %42, ptr align 1 %43, i64 %46, i1 false)
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #3
  br label %47

47:                                               ; preds = %32, %29, %24, %19
  store i32 0, ptr %4, align 4
  br label %48

48:                                               ; preds = %47, %18, %11
  %49 = load i32, ptr %4, align 4
  ret i32 %49
}

; 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) #2

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
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/C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"long", !7, i64 0}
!11 = !{!12, !10, i64 0}
!12 = !{!"graph_t", !10, i64 0, !10, i64 8, !10, i64 16, !6, i64 24, !6, i64 32}
!13 = !{!12, !6, i64 32}
!14 = !{!12, !10, i64 16}


; 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 nofree norecurse nosync nounwind willreturn memory(readwrite, inaccessiblemem: none) uwtable
define dso_local range(i32 0, 8) i32 @graph_get_label_at(ptr noundef readonly %0, i64 noundef %1, ptr noundef writeonly %2) local_unnamed_addr #0 {
  %.not = icmp eq ptr %0, null
  br i1 %.not, label %17, label %4

4:                                                ; preds = %3
  %5 = load i64, ptr %0, align 8, !tbaa !5
  %.not18 = icmp ugt i64 %5, %1
  br i1 %.not18, label %6, label %17

6:                                                ; preds = %4
  %7 = getelementptr inbounds i8, ptr %0, i64 32
  %8 = load ptr, ptr %7, align 8, !tbaa !11
  %.not19 = icmp eq ptr %8, null
  br i1 %.not19, label %17, label %9

9:                                                ; preds = %6
  %10 = getelementptr inbounds i8, ptr %0, i64 16
  %11 = load i64, ptr %10, align 8, !tbaa !12
  %12 = icmp ne i64 %11, 0
  %13 = icmp ne ptr %2, null
  %or.cond = and i1 %13, %12
  br i1 %or.cond, label %14, label %17

14:                                               ; preds = %9
  %15 = mul i64 %11, %1
  %16 = getelementptr inbounds i8, ptr %8, i64 %15
  tail call void @llvm.memcpy.p0.p0.i64(ptr nonnull align 1 %2, ptr nonnull align 1 %16, i64 %11, i1 false)
  br label %17

17:                                               ; preds = %6, %9, %14, %4, %3
  %.0 = phi i32 [ 1, %3 ], [ 7, %4 ], [ 0, %14 ], [ 0, %9 ], [ 0, %6 ]
  ret i32 %.0
}

; Function Attrs: mustprogress 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

attributes #0 = { mustprogress nofree norecurse nosync nounwind willreturn memory(readwrite, inaccessiblemem: none) 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 = { mustprogress nocallback nofree nounwind willreturn memory(argmem: readwrite) }

!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, !7, i64 0}
!6 = !{!"graph_t", !7, i64 0, !7, i64 8, !7, i64 16, !10, i64 24, !10, i64 32}
!7 = !{!"long", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"any pointer", !8, i64 0}
!11 = !{!6, !10, i64 32}
!12 = !{!6, !7, i64 16}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,PostOrderFunctionAttrsPass,ReassociatePass,SROAPass,SimplifyCFGPass,TailCallElimPass