; LLVM IR from yudi-matsuzake/libgenerics :: doc/examples (graph0)

; 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: nounwind uwtable
declare dso_local void @printf_graph(ptr noundef) #0

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: nounwind uwtable
define dso_local i32 @main() #0 {
  %1 = alloca i32, align 4
  %2 = alloca %struct.graph_t, align 8
  %3 = alloca i32, align 4
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 40, ptr %2) #3
  %4 = call i32 @graph_create(ptr noundef %2, i64 noundef 4, i64 noundef 4)
  %5 = call i32 @graph_add_edge(ptr noundef %2, i64 noundef 0, i64 noundef 1)
  %6 = call i32 @graph_add_edge(ptr noundef %2, i64 noundef 2, i64 noundef 1)
  %7 = call i32 @graph_add_edge(ptr noundef %2, i64 noundef 3, i64 noundef 0)
  %8 = call i32 @graph_add_edge(ptr noundef %2, i64 noundef 3, i64 noundef 1)
  %9 = call i32 @graph_add_edge(ptr noundef %2, i64 noundef 3, i64 noundef 2)
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #3
  store i32 1, ptr %3, align 4, !tbaa !5
  br label %10

10:                                               ; preds = %18, %0
  %11 = load i32, ptr %3, align 4, !tbaa !5
  %12 = icmp sle i32 %11, 4
  br i1 %12, label %13, label %21

13:                                               ; preds = %10
  %14 = load i32, ptr %3, align 4, !tbaa !5
  %15 = sub nsw i32 %14, 1
  %16 = sext i32 %15 to i64
  %17 = call i32 @graph_set_label_at(ptr noundef %2, i64 noundef %16, ptr noundef %3)
  br label %18

18:                                               ; preds = %13
  %19 = load i32, ptr %3, align 4, !tbaa !5
  %20 = add nsw i32 %19, 1
  store i32 %20, ptr %3, align 4, !tbaa !5
  br label %10, !llvm.loop !9

21:                                               ; preds = %10
  call void @printf_graph(ptr noundef %2)
  %22 = call i32 @graph_destroy(ptr noundef %2)
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #3
  call void @llvm.lifetime.end.p0(i64 40, ptr %2) #3
  ret i32 0
}

declare i32 @graph_create(ptr noundef, i64 noundef, i64 noundef) #2

declare i32 @graph_add_edge(ptr noundef, i64 noundef, i64 noundef) #2

declare i32 @graph_set_label_at(ptr noundef, i64 noundef, ptr noundef) #2

declare i32 @graph_destroy(ptr noundef) #2

attributes #0 = { 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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { "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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"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"

%struct.graph_t = type { i64, i64, i64, ptr, ptr }

; Function Attrs: nounwind uwtable
declare dso_local void @printf_graph(ptr noundef) local_unnamed_addr #0

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: nounwind uwtable
define dso_local noundef i32 @main() local_unnamed_addr #0 {
  %1 = alloca %struct.graph_t, align 8
  %2 = alloca i32, align 4
  call void @llvm.lifetime.start.p0(i64 40, ptr nonnull %1) #3
  %3 = call i32 @graph_create(ptr noundef nonnull %1, i64 noundef 4, i64 noundef 4) #3
  %4 = call i32 @graph_add_edge(ptr noundef nonnull %1, i64 noundef 0, i64 noundef 1) #3
  %5 = call i32 @graph_add_edge(ptr noundef nonnull %1, i64 noundef 2, i64 noundef 1) #3
  %6 = call i32 @graph_add_edge(ptr noundef nonnull %1, i64 noundef 3, i64 noundef 0) #3
  %7 = call i32 @graph_add_edge(ptr noundef nonnull %1, i64 noundef 3, i64 noundef 1) #3
  %8 = call i32 @graph_add_edge(ptr noundef nonnull %1, i64 noundef 3, i64 noundef 2) #3
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %2) #3
  store i32 1, ptr %2, align 4, !tbaa !5
  br label %9

9:                                                ; preds = %0, %9
  %storemerge1 = phi i32 [ 0, %0 ], [ %12, %9 ]
  %10 = sext i32 %storemerge1 to i64
  %11 = call i32 @graph_set_label_at(ptr noundef nonnull %1, i64 noundef %10, ptr noundef nonnull %2) #3
  %12 = load i32, ptr %2, align 4, !tbaa !5
  %13 = add nsw i32 %12, 1
  store i32 %13, ptr %2, align 4, !tbaa !5
  %14 = icmp slt i32 %12, 4
  br i1 %14, label %9, label %15, !llvm.loop !9

15:                                               ; preds = %9
  call void @printf_graph(ptr noundef nonnull %1)
  %16 = call i32 @graph_destroy(ptr noundef nonnull %1) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %2) #3
  call void @llvm.lifetime.end.p0(i64 40, ptr nonnull %1) #3
  ret i32 0
}

declare i32 @graph_create(ptr noundef, i64 noundef, i64 noundef) local_unnamed_addr #2

declare i32 @graph_add_edge(ptr noundef, i64 noundef, i64 noundef) local_unnamed_addr #2

declare i32 @graph_set_label_at(ptr noundef, i64 noundef, ptr noundef) local_unnamed_addr #2

declare i32 @graph_destroy(ptr noundef) local_unnamed_addr #2

attributes #0 = { 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 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { "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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,LoopRotatePass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass