; LLVM IR from ros2/rcutils :: src (shared_library)

; 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.rcutils_shared_library_s = type { ptr, ptr, %struct.rcutils_allocator_s }
%struct.rcutils_allocator_s = type { ptr, ptr, 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: nounwind
declare ptr @dlerror() #1

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: nounwind
declare ptr @dlsym(ptr noundef, ptr noundef) #1

; Function Attrs: nounwind uwtable
define dso_local zeroext i1 @rcutils_has_symbol(ptr noundef %0, ptr noundef %1) #2 {
  %3 = alloca i1, align 1
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  %7 = load ptr, ptr %4, align 8, !tbaa !5
  %8 = icmp ne ptr %7, null
  br i1 %8, label %9, label %17

9:                                                ; preds = %2
  %10 = load ptr, ptr %4, align 8, !tbaa !5
  %11 = getelementptr inbounds %struct.rcutils_shared_library_s, ptr %10, i32 0, i32 0
  %12 = load ptr, ptr %11, align 8, !tbaa !9
  %13 = icmp ne ptr %12, null
  br i1 %13, label %14, label %17

14:                                               ; preds = %9
  %15 = load ptr, ptr %5, align 8, !tbaa !5
  %16 = icmp eq ptr %15, null
  br i1 %16, label %17, label %18

17:                                               ; preds = %14, %9, %2
  store i1 false, ptr %3, align 1
  br label %32

18:                                               ; preds = %14
  %19 = call ptr @dlerror() #3
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #3
  %20 = load ptr, ptr %4, align 8, !tbaa !5
  %21 = getelementptr inbounds %struct.rcutils_shared_library_s, ptr %20, i32 0, i32 0
  %22 = load ptr, ptr %21, align 8, !tbaa !9
  %23 = load ptr, ptr %5, align 8, !tbaa !5
  %24 = call ptr @dlsym(ptr noundef %22, ptr noundef %23) #3
  store ptr %24, ptr %6, align 8, !tbaa !5
  %25 = call ptr @dlerror() #3
  %26 = icmp eq ptr %25, null
  br i1 %26, label %27, label %30

27:                                               ; preds = %18
  %28 = load ptr, ptr %6, align 8, !tbaa !5
  %29 = icmp ne ptr %28, null
  br label %30

30:                                               ; preds = %27, %18
  %31 = phi i1 [ false, %18 ], [ %29, %27 ]
  store i1 %31, ptr %3, align 1
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #3
  br label %32

32:                                               ; preds = %30, %17
  %33 = load i1, ptr %3, align 1
  ret i1 %33
}

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


; 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: nounwind
declare ptr @dlerror() local_unnamed_addr #0

; Function Attrs: nounwind
declare ptr @dlsym(ptr noundef, ptr noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
define dso_local zeroext i1 @rcutils_has_symbol(ptr noundef readonly %0, ptr noundef %1) local_unnamed_addr #1 {
  %.not = icmp eq ptr %0, null
  br i1 %.not, label %15, label %3

3:                                                ; preds = %2
  %4 = load ptr, ptr %0, align 8, !tbaa !5
  %5 = icmp eq ptr %4, null
  %6 = icmp eq ptr %1, null
  %or.cond = or i1 %6, %5
  br i1 %or.cond, label %15, label %7

7:                                                ; preds = %3
  %8 = tail call ptr @dlerror() #2
  %9 = load ptr, ptr %0, align 8, !tbaa !5
  %10 = tail call ptr @dlsym(ptr noundef %9, ptr noundef nonnull %1) #2
  %11 = tail call ptr @dlerror() #2
  %12 = icmp eq ptr %11, null
  %13 = icmp ne ptr %10, null
  %14 = select i1 %12, i1 %13, i1 false
  br label %15

15:                                               ; preds = %2, %3, %7
  %.0 = phi i1 [ %14, %7 ], [ false, %3 ], [ false, %2 ]
  ret i1 %.0
}

attributes #0 = { nounwind "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 = { 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 = { 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, !7, i64 0}
!6 = !{!"rcutils_shared_library_s", !7, i64 0, !7, i64 8, !10, i64 16}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"rcutils_allocator_s", !7, i64 0, !7, i64 8, !7, i64 16, !7, i64 24, !7, i64 32}


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