; LLVM IR from DroneBridge/DroneBridge :: control (opentx)

; 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"

@keep_running = external hidden global i32, align 4
@.str = external hidden unnamed_addr constant [61 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [44 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [218 x i8], align 1

; Function Attrs: nounwind uwtable
define dso_local i32 @initialize_opentx(i32 noundef %0) #0 {
  %2 = alloca i32, align 4
  %3 = alloca i32, align 4
  %4 = alloca [500 x i8], align 16
  %5 = alloca [500 x i8], align 16
  store i32 %0, ptr %2, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #4
  call void @llvm.lifetime.start.p0(i64 500, ptr %4) #4
  %6 = getelementptr inbounds [500 x i8], ptr %4, i64 0, i64 0
  %7 = load i32, ptr %2, align 4, !tbaa !5
  call void @get_joy_interface_path(ptr noundef %6, i32 noundef %7)
  br label %8

8:                                                ; preds = %1
  %9 = getelementptr inbounds [500 x i8], ptr %4, i64 0, i64 0
  %10 = call i32 (ptr, ...) @printf(ptr noundef @.str, ptr noundef %9)
  %11 = getelementptr inbounds [500 x i8], ptr %4, i64 0, i64 0
  call void (i32, ptr, ...) @syslog(i32 noundef 6, ptr noundef @.str, ptr noundef %11)
  br label %12

12:                                               ; preds = %8
  br label %13

13:                                               ; preds = %12
  br label %14

14:                                               ; preds = %24, %13
  %15 = call i32 @usleep(i32 noundef 100000)
  %16 = getelementptr inbounds [500 x i8], ptr %4, i64 0, i64 0
  %17 = call i32 (ptr, i32, ...) @open(ptr noundef %16, i32 noundef 2048)
  store i32 %17, ptr %3, align 4, !tbaa !5
  br label %18

18:                                               ; preds = %14
  %19 = load i32, ptr %3, align 4, !tbaa !5
  %20 = icmp slt i32 %19, 0
  br i1 %20, label %21, label %24

21:                                               ; preds = %18
  %22 = load volatile i32, ptr @keep_running, align 4, !tbaa !5
  %23 = icmp ne i32 %22, 0
  br label %24

24:                                               ; preds = %21, %18
  %25 = phi i1 [ false, %18 ], [ %23, %21 ]
  br i1 %25, label %14, label %26, !llvm.loop !9

26:                                               ; preds = %24
  br label %27

27:                                               ; preds = %26
  %28 = call i32 (ptr, ...) @printf(ptr noundef @.str.1)
  call void (i32, ptr, ...) @syslog(i32 noundef 6, ptr noundef @.str.1)
  br label %29

29:                                               ; preds = %27
  br label %30

30:                                               ; preds = %29
  call void @llvm.lifetime.start.p0(i64 500, ptr %5) #4
  %31 = getelementptr inbounds [500 x i8], ptr %5, i64 0, i64 0
  %32 = call ptr @strcpy(ptr noundef %31, ptr noundef @.str.2) #4
  %33 = getelementptr inbounds [500 x i8], ptr %5, i64 0, i64 0
  %34 = load i32, ptr %2, align 4, !tbaa !5
  call void @do_calibration(ptr noundef %33, i32 noundef %34)
  %35 = load i32, ptr %3, align 4, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 500, ptr %5) #4
  call void @llvm.lifetime.end.p0(i64 500, ptr %4) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #4
  ret i32 %35
}

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

declare void @get_joy_interface_path(ptr noundef, i32 noundef) #2

declare i32 @printf(ptr noundef, ...) #2

declare void @syslog(i32 noundef, ptr noundef, ...) #2

declare i32 @usleep(i32 noundef) #2

declare i32 @open(ptr noundef, i32 noundef, ...) #2

; Function Attrs: nounwind
declare ptr @strcpy(ptr noundef, ptr noundef) #3

declare void @do_calibration(ptr noundef, i32 noundef) #2

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

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 "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 = 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"

@keep_running = external hidden global i32, align 4
@.str = external hidden unnamed_addr constant [61 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [44 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [218 x i8], align 1

; Function Attrs: nounwind uwtable
define dso_local noundef i32 @initialize_opentx(i32 noundef %0) local_unnamed_addr #0 {
  %2 = alloca [500 x i8], align 16
  %3 = alloca [500 x i8], align 16
  call void @llvm.lifetime.start.p0(i64 500, ptr nonnull %2) #6
  call void @get_joy_interface_path(ptr noundef nonnull %2, i32 noundef %0) #6
  %4 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str, ptr noundef nonnull %2)
  call void (i32, ptr, ...) @syslog(i32 noundef 6, ptr noundef nonnull @.str, ptr noundef nonnull %2) #6
  br label %5

5:                                                ; preds = %9, %1
  %6 = call i32 @usleep(i32 noundef 100000) #6
  %7 = call i32 (ptr, i32, ...) @open(ptr noundef nonnull %2, i32 noundef 2048) #6
  %8 = icmp slt i32 %7, 0
  br i1 %8, label %9, label %.critedge

9:                                                ; preds = %5
  %10 = load volatile i32, ptr @keep_running, align 4, !tbaa !5
  %.not = icmp eq i32 %10, 0
  br i1 %.not, label %.critedge, label %5, !llvm.loop !9

.critedge:                                        ; preds = %5, %9
  %11 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.1)
  call void (i32, ptr, ...) @syslog(i32 noundef 6, ptr noundef nonnull @.str.1) #6
  call void @llvm.lifetime.start.p0(i64 500, ptr nonnull %3) #6
  %12 = call ptr @strcpy(ptr noundef nonnull dereferenceable(1) %3, ptr noundef nonnull dereferenceable(1) @.str.2) #6
  call void @do_calibration(ptr noundef nonnull %3, i32 noundef %0) #6
  call void @llvm.lifetime.end.p0(i64 500, ptr nonnull %3) #6
  call void @llvm.lifetime.end.p0(i64 500, ptr nonnull %2) #6
  ret i32 %7
}

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

declare void @get_joy_interface_path(ptr noundef, i32 noundef) local_unnamed_addr #2

; Function Attrs: nofree nounwind
declare noundef i32 @printf(ptr nocapture noundef readonly, ...) local_unnamed_addr #3

declare void @syslog(i32 noundef, ptr noundef, ...) local_unnamed_addr #2

declare i32 @usleep(i32 noundef) local_unnamed_addr #2

; Function Attrs: nofree
declare noundef i32 @open(ptr nocapture noundef readonly, i32 noundef, ...) local_unnamed_addr #4

; Function Attrs: mustprogress nofree nounwind willreturn memory(argmem: readwrite)
declare ptr @strcpy(ptr noalias noundef returned writeonly, ptr noalias nocapture noundef readonly) local_unnamed_addr #5

declare void @do_calibration(ptr noundef, i32 noundef) local_unnamed_addr #2

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

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 = { 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 #4 = { nofree "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 = { mustprogress nofree nounwind willreturn memory(argmem: readwrite) "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 #6 = { 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,GVNPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,LCSSAPass,LoopUnrollPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass