; LLVM IR from eclipse-threadx/threadx :: common/src/txe_byte_release.ll (txe_byte_release)

; 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.TX_THREAD_STRUCT = type { i64, i64, ptr, ptr, ptr, i64, i64, i64, ptr, ptr, ptr, i32, ptr, ptr, i32, i32, i32, i32, i32, ptr, ptr, i64, %struct.TX_TIMER_INTERNAL_STRUCT, ptr, ptr, ptr, ptr, i64, ptr, i32, i32, ptr, ptr, ptr, i32, i32, i32, i32, ptr, ptr, ptr, i64 }
%struct.TX_TIMER_INTERNAL_STRUCT = type { i64, i64, ptr, i64, ptr, ptr, ptr }

@_tx_thread_current_ptr = external global ptr, align 8
@_tx_timer_thread = external global %struct.TX_THREAD_STRUCT, align 8
@_tx_thread_system_state = external global i64, align 8

; Function Attrs: nounwind uwtable
define dso_local i32 @_txe_byte_release(ptr noundef %0) #0 {
  %2 = alloca ptr, align 8
  %3 = alloca i32, align 4
  %4 = alloca ptr, align 8
  store ptr %0, ptr %2, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #3
  store i32 0, ptr %3, align 4, !tbaa !9
  %5 = load ptr, ptr %2, align 8, !tbaa !5
  %6 = icmp eq ptr %5, null
  br i1 %6, label %7, label %8

7:                                                ; preds = %1
  store i32 3, ptr %3, align 4, !tbaa !9
  br label %22

8:                                                ; preds = %1
  %9 = load ptr, ptr @_tx_thread_current_ptr, align 8, !tbaa !5
  store ptr %9, ptr %4, align 8, !tbaa !5
  %10 = load ptr, ptr %4, align 8, !tbaa !5
  %11 = icmp eq ptr %10, @_tx_timer_thread
  br i1 %11, label %12, label %13

12:                                               ; preds = %8
  store i32 19, ptr %3, align 4, !tbaa !9
  br label %13

13:                                               ; preds = %12, %8
  %14 = load i64, ptr @_tx_thread_system_state, align 8, !tbaa !11
  %15 = icmp ne i64 %14, 0
  br i1 %15, label %16, label %21

16:                                               ; preds = %13
  %17 = load i64, ptr @_tx_thread_system_state, align 8, !tbaa !11
  %18 = icmp ult i64 %17, 4042322160
  br i1 %18, label %19, label %20

19:                                               ; preds = %16
  store i32 19, ptr %3, align 4, !tbaa !9
  br label %20

20:                                               ; preds = %19, %16
  br label %21

21:                                               ; preds = %20, %13
  br label %22

22:                                               ; preds = %21, %7
  %23 = load i32, ptr %3, align 4, !tbaa !9
  %24 = icmp eq i32 %23, 0
  br i1 %24, label %25, label %28

25:                                               ; preds = %22
  %26 = load ptr, ptr %2, align 8, !tbaa !5
  %27 = call i32 @_tx_byte_release(ptr noundef %26)
  store i32 %27, ptr %3, align 4, !tbaa !9
  br label %28

28:                                               ; preds = %25, %22
  %29 = load i32, ptr %3, align 4, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #3
  ret i32 %29
}

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

declare i32 @_tx_byte_release(ptr 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 }

!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, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"long", !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.TX_THREAD_STRUCT = type { i64, i64, ptr, ptr, ptr, i64, i64, i64, ptr, ptr, ptr, i32, ptr, ptr, i32, i32, i32, i32, i32, ptr, ptr, i64, %struct.TX_TIMER_INTERNAL_STRUCT, ptr, ptr, ptr, ptr, i64, ptr, i32, i32, ptr, ptr, ptr, i32, i32, i32, i32, ptr, ptr, ptr, i64 }
%struct.TX_TIMER_INTERNAL_STRUCT = type { i64, i64, ptr, i64, ptr, ptr, ptr }

@_tx_thread_current_ptr = external local_unnamed_addr global ptr, align 8
@_tx_timer_thread = external global %struct.TX_THREAD_STRUCT, align 8
@_tx_thread_system_state = external local_unnamed_addr global i64, align 8

; Function Attrs: nounwind uwtable
define dso_local i32 @_txe_byte_release(ptr noundef %0) local_unnamed_addr #0 {
  %2 = icmp eq ptr %0, null
  br i1 %2, label %.thread, label %3

3:                                                ; preds = %1
  %4 = load i64, ptr @_tx_thread_system_state, align 8
  %5 = add i64 %4, -1
  %or.cond = icmp ult i64 %5, 4042322159
  %6 = load ptr, ptr @_tx_thread_current_ptr, align 8
  %.not = icmp eq ptr %6, @_tx_timer_thread
  %or.cond7 = select i1 %or.cond, i1 true, i1 %.not
  br i1 %or.cond7, label %.thread, label %7

7:                                                ; preds = %3
  %8 = tail call i32 @_tx_byte_release(ptr noundef nonnull %0) #2
  br label %.thread

.thread:                                          ; preds = %3, %1, %7
  %.2 = phi i32 [ %8, %7 ], [ 3, %1 ], [ 19, %3 ]
  ret i32 %.2
}

declare i32 @_tx_byte_release(ptr noundef) local_unnamed_addr #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 = { "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)"}


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