; LLVM IR from godzilla-foundation/godzilla-community :: core/deps/nanomsg-1.1.5/src/utils (queue)

; 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.nn_queue_item = type { ptr }
%struct.nn_queue = type { ptr, ptr }

@stderr = external global ptr, align 8
@.str = external hidden unnamed_addr constant [30 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [34 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [114 x i8], align 1

; Function Attrs: nounwind uwtable
define dso_local void @nn_queue_push(ptr noundef %0, ptr noundef %1) #0 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  store ptr %0, ptr %3, align 8, !tbaa !5
  store ptr %1, ptr %4, align 8, !tbaa !5
  br label %5

5:                                                ; preds = %2
  %6 = load ptr, ptr %4, align 8, !tbaa !5
  %7 = getelementptr inbounds %struct.nn_queue_item, ptr %6, i32 0, i32 0
  %8 = load ptr, ptr %7, align 8, !tbaa !9
  %9 = icmp eq ptr %8, inttoptr (i64 -1 to ptr)
  %10 = xor i1 %9, true
  %11 = zext i1 %10 to i32
  %12 = sext i32 %11 to i64
  %13 = call i64 @llvm.expect.i64(i64 %12, i64 0)
  %14 = icmp ne i64 %13, 0
  br i1 %14, label %15, label %20

15:                                               ; preds = %5
  call void @nn_backtrace_print()
  %16 = load ptr, ptr @stderr, align 8, !tbaa !5
  %17 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %16, ptr noundef @.str, ptr noundef @.str.1, ptr noundef @.str.2, i32 noundef 47) #5
  %18 = load ptr, ptr @stderr, align 8, !tbaa !5
  %19 = call i32 @fflush(ptr noundef %18)
  call void @nn_err_abort() #6
  unreachable

20:                                               ; preds = %5
  br label %21

21:                                               ; preds = %20
  %22 = load ptr, ptr %4, align 8, !tbaa !5
  %23 = getelementptr inbounds %struct.nn_queue_item, ptr %22, i32 0, i32 0
  store ptr null, ptr %23, align 8, !tbaa !9
  %24 = load ptr, ptr %3, align 8, !tbaa !5
  %25 = getelementptr inbounds %struct.nn_queue, ptr %24, i32 0, i32 0
  %26 = load ptr, ptr %25, align 8, !tbaa !11
  %27 = icmp ne ptr %26, null
  br i1 %27, label %32, label %28

28:                                               ; preds = %21
  %29 = load ptr, ptr %4, align 8, !tbaa !5
  %30 = load ptr, ptr %3, align 8, !tbaa !5
  %31 = getelementptr inbounds %struct.nn_queue, ptr %30, i32 0, i32 0
  store ptr %29, ptr %31, align 8, !tbaa !11
  br label %32

32:                                               ; preds = %28, %21
  %33 = load ptr, ptr %3, align 8, !tbaa !5
  %34 = getelementptr inbounds %struct.nn_queue, ptr %33, i32 0, i32 1
  %35 = load ptr, ptr %34, align 8, !tbaa !13
  %36 = icmp ne ptr %35, null
  br i1 %36, label %37, label %43

37:                                               ; preds = %32
  %38 = load ptr, ptr %4, align 8, !tbaa !5
  %39 = load ptr, ptr %3, align 8, !tbaa !5
  %40 = getelementptr inbounds %struct.nn_queue, ptr %39, i32 0, i32 1
  %41 = load ptr, ptr %40, align 8, !tbaa !13
  %42 = getelementptr inbounds %struct.nn_queue_item, ptr %41, i32 0, i32 0
  store ptr %38, ptr %42, align 8, !tbaa !9
  br label %43

43:                                               ; preds = %37, %32
  %44 = load ptr, ptr %4, align 8, !tbaa !5
  %45 = load ptr, ptr %3, align 8, !tbaa !5
  %46 = getelementptr inbounds %struct.nn_queue, ptr %45, i32 0, i32 1
  store ptr %44, ptr %46, align 8, !tbaa !13
  ret void
}

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(none)
declare i64 @llvm.expect.i64(i64, i64) #1

declare void @nn_backtrace_print() #2

; Function Attrs: nounwind
declare i32 @fprintf(ptr noundef, ptr noundef, ...) #3

declare i32 @fflush(ptr noundef) #2

; Function Attrs: noreturn
declare void @nn_err_abort() #4

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(none) }
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 "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 #4 = { noreturn "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 #5 = { nounwind }
attributes #6 = { noreturn }

!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 = !{!"nn_queue_item", !6, i64 0}
!11 = !{!12, !6, i64 0}
!12 = !{!"nn_queue", !6, i64 0, !6, i64 8}
!13 = !{!12, !6, i64 8}


; 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"

@stderr = external local_unnamed_addr global ptr, align 8
@.str = external hidden unnamed_addr constant [30 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [34 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [114 x i8], align 1

; Function Attrs: nounwind uwtable
define dso_local void @nn_queue_push(ptr nocapture noundef %0, ptr noundef %1) local_unnamed_addr #0 {
  %3 = load ptr, ptr %1, align 8, !tbaa !5
  %.not = icmp eq ptr %3, inttoptr (i64 -1 to ptr)
  br i1 %.not, label %9, label %4, !prof !10

4:                                                ; preds = %2
  tail call void @nn_backtrace_print() #4
  %5 = load ptr, ptr @stderr, align 8, !tbaa !11
  %6 = tail call i32 (ptr, ptr, ...) @fprintf(ptr noundef %5, ptr noundef nonnull @.str, ptr noundef nonnull @.str.1, ptr noundef nonnull @.str.2, i32 noundef 47) #5
  %7 = load ptr, ptr @stderr, align 8, !tbaa !11
  %8 = tail call i32 @fflush(ptr noundef %7)
  tail call void @nn_err_abort() #6
  unreachable

9:                                                ; preds = %2
  store ptr null, ptr %1, align 8, !tbaa !5
  %10 = load ptr, ptr %0, align 8, !tbaa !12
  %.not10 = icmp eq ptr %10, null
  br i1 %.not10, label %11, label %12

11:                                               ; preds = %9
  store ptr %1, ptr %0, align 8, !tbaa !12
  br label %12

12:                                               ; preds = %11, %9
  %13 = getelementptr inbounds i8, ptr %0, i64 8
  %14 = load ptr, ptr %13, align 8, !tbaa !14
  %.not11 = icmp eq ptr %14, null
  br i1 %.not11, label %16, label %15

15:                                               ; preds = %12
  store ptr %1, ptr %14, align 8, !tbaa !5
  br label %16

16:                                               ; preds = %15, %12
  store ptr %1, ptr %13, align 8, !tbaa !14
  ret void
}

declare void @nn_backtrace_print() local_unnamed_addr #1

; Function Attrs: nofree nounwind
declare noundef i32 @fprintf(ptr nocapture noundef, ptr nocapture noundef readonly, ...) local_unnamed_addr #2

; Function Attrs: nofree nounwind
declare noundef i32 @fflush(ptr nocapture noundef) local_unnamed_addr #2

; Function Attrs: noreturn
declare void @nn_err_abort() local_unnamed_addr #3

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 = { "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 = { nofree 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 #3 = { noreturn "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 #4 = { nounwind }
attributes #5 = { cold nounwind }
attributes #6 = { noreturn 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 = !{!"nn_queue_item", !7, i64 0}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"branch_weights", !"expected", i32 2000, i32 1}
!11 = !{!7, !7, i64 0}
!12 = !{!13, !7, i64 0}
!13 = !{!"nn_queue", !7, i64 0, !7, i64 8}
!14 = !{!13, !7, i64 8}


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