; LLVM IR from devicehive/esp8266-firmware :: firmware-src/sources (dhsender)

; 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.__va_list_tag = type { i32, i32, ptr, ptr }

@mNewItemCb = external dso_local global ptr, align 8
@dhsender_notification.str = external hidden constant [34 x i8], align 4

declare void @dhdebug_ram(ptr noundef, ...) #0

declare void @dhstat_got_notification_dropped() #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
declare void @llvm.va_start.p0(ptr) #2

declare i32 @dhsender_queue_add(i32 noundef, i32 noundef, i32 noundef, i32 noundef, ptr noundef) #0

; Function Attrs: nocallback nofree nosync nounwind willreturn
declare void @llvm.va_end.p0(ptr) #2

; 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 void @dhsender_notification(i32 noundef %0, i32 noundef %1, ...) #3 {
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = alloca [1 x %struct.__va_list_tag], align 16
  store i32 %0, ptr %3, align 4, !tbaa !5
  store i32 %1, ptr %4, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 24, ptr %5) #4
  %6 = getelementptr inbounds [1 x %struct.__va_list_tag], ptr %5, i64 0, i64 0
  call void @llvm.va_start.p0(ptr %6)
  call void @dhstat_got_notification()
  %7 = load i32, ptr %3, align 4, !tbaa !5
  %8 = load i32, ptr %4, align 4, !tbaa !5
  %9 = getelementptr inbounds [1 x %struct.__va_list_tag], ptr %5, i64 0, i64 0
  %10 = call i32 @dhsender_queue_add(i32 noundef 2, i32 noundef %7, i32 noundef %8, i32 noundef 0, ptr noundef %9)
  %11 = icmp ne i32 %10, 0
  br i1 %11, label %12, label %18

12:                                               ; preds = %2
  %13 = load ptr, ptr @mNewItemCb, align 8, !tbaa !9
  %14 = icmp ne ptr %13, null
  br i1 %14, label %15, label %17

15:                                               ; preds = %12
  %16 = load ptr, ptr @mNewItemCb, align 8, !tbaa !9
  call void %16()
  br label %17

17:                                               ; preds = %15, %12
  br label %22

18:                                               ; preds = %2
  call void @dhstat_got_notification_dropped()
  br label %19

19:                                               ; preds = %18
  call void (ptr, ...) @dhdebug_ram(ptr noundef @dhsender_notification.str)
  br label %20

20:                                               ; preds = %19
  br label %21

21:                                               ; preds = %20
  br label %22

22:                                               ; preds = %21, %17
  %23 = getelementptr inbounds [1 x %struct.__va_list_tag], ptr %5, i64 0, i64 0
  call void @llvm.va_end.p0(ptr %23)
  call void @llvm.lifetime.end.p0(i64 24, ptr %5) #4
  ret void
}

declare void @dhstat_got_notification() #0

attributes #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 = { nocallback nofree nosync nounwind willreturn }
attributes #3 = { 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 #4 = { 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 = !{!10, !10, i64 0}
!10 = !{!"any pointer", !7, i64 0}


; 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.__va_list_tag = type { i32, i32, ptr, ptr }

@mNewItemCb = external dso_local local_unnamed_addr global ptr, align 8
@dhsender_notification.str = external hidden constant [34 x i8], align 4

declare void @dhdebug_ram(ptr noundef, ...) local_unnamed_addr #0

declare void @dhstat_got_notification_dropped() 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
declare void @llvm.va_start.p0(ptr) #2

declare i32 @dhsender_queue_add(i32 noundef, i32 noundef, i32 noundef, i32 noundef, ptr noundef) local_unnamed_addr #0

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn
declare void @llvm.va_end.p0(ptr) #2

; 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 void @dhsender_notification(i32 noundef %0, i32 noundef %1, ...) local_unnamed_addr #3 {
  %3 = alloca [1 x %struct.__va_list_tag], align 16
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %3) #4
  call void @llvm.va_start.p0(ptr nonnull %3)
  call void @dhstat_got_notification() #4
  %4 = call i32 @dhsender_queue_add(i32 noundef 2, i32 noundef %0, i32 noundef %1, i32 noundef 0, ptr noundef nonnull %3) #4
  %.not = icmp eq i32 %4, 0
  br i1 %.not, label %8, label %5

5:                                                ; preds = %2
  %6 = load ptr, ptr @mNewItemCb, align 8, !tbaa !5
  %.not2 = icmp eq ptr %6, null
  br i1 %.not2, label %9, label %7

7:                                                ; preds = %5
  call void %6() #4
  br label %9

8:                                                ; preds = %2
  call void @dhstat_got_notification_dropped() #4
  call void (ptr, ...) @dhdebug_ram(ptr noundef nonnull @dhsender_notification.str) #4
  br label %9

9:                                                ; preds = %5, %7, %8
  call void @llvm.va_end.p0(ptr nonnull %3)
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %3) #4
  ret void
}

declare void @dhstat_got_notification() local_unnamed_addr #0

attributes #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 = { mustprogress nocallback nofree nosync nounwind willreturn }
attributes #3 = { 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 #4 = { 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"}


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