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

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

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

; Function Attrs: nounwind uwtable
define dso_local i32 @_txe_semaphore_get(ptr noundef %0, i64 noundef %1) #0 {
  %3 = alloca ptr, align 8
  %4 = alloca i64, align 8
  %5 = alloca i32, align 4
  %6 = alloca ptr, align 8
  store ptr %0, ptr %3, align 8, !tbaa !5
  store i64 %1, ptr %4, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #3
  store i32 0, ptr %5, align 4, !tbaa !11
  %7 = load ptr, ptr %3, align 8, !tbaa !5
  %8 = icmp eq ptr %7, null
  br i1 %8, label %9, label %10

9:                                                ; preds = %2
  store i32 12, ptr %5, align 4, !tbaa !11
  br label %32

10:                                               ; preds = %2
  %11 = load ptr, ptr %3, align 8, !tbaa !5
  %12 = getelementptr inbounds %struct.TX_SEMAPHORE_STRUCT, ptr %11, i32 0, i32 0
  %13 = load i64, ptr %12, align 8, !tbaa !13
  %14 = icmp ne i64 %13, 1397050689
  br i1 %14, label %15, label %16

15:                                               ; preds = %10
  store i32 12, ptr %5, align 4, !tbaa !11
  br label %31

16:                                               ; preds = %10
  %17 = load i64, ptr %4, align 8, !tbaa !9
  %18 = icmp ne i64 %17, 0
  br i1 %18, label %19, label %30

19:                                               ; preds = %16
  %20 = load i64, ptr @_tx_thread_system_state, align 8, !tbaa !9
  %21 = icmp ne i64 %20, 0
  br i1 %21, label %22, label %23

22:                                               ; preds = %19
  store i32 4, ptr %5, align 4, !tbaa !11
  br label %29

23:                                               ; preds = %19
  %24 = load ptr, ptr @_tx_thread_current_ptr, align 8, !tbaa !5
  store ptr %24, ptr %6, align 8, !tbaa !5
  %25 = load ptr, ptr %6, align 8, !tbaa !5
  %26 = icmp eq ptr %25, @_tx_timer_thread
  br i1 %26, label %27, label %28

27:                                               ; preds = %23
  store i32 4, ptr %5, align 4, !tbaa !11
  br label %28

28:                                               ; preds = %27, %23
  br label %29

29:                                               ; preds = %28, %22
  br label %30

30:                                               ; preds = %29, %16
  br label %31

31:                                               ; preds = %30, %15
  br label %32

32:                                               ; preds = %31, %9
  %33 = load i32, ptr %5, align 4, !tbaa !11
  %34 = icmp eq i32 %33, 0
  br i1 %34, label %35, label %39

35:                                               ; preds = %32
  %36 = load ptr, ptr %3, align 8, !tbaa !5
  %37 = load i64, ptr %4, align 8, !tbaa !9
  %38 = call i32 @_tx_semaphore_get(ptr noundef %36, i64 noundef %37)
  store i32 %38, ptr %5, align 4, !tbaa !11
  br label %39

39:                                               ; preds = %35, %32
  %40 = load i32, ptr %5, align 4, !tbaa !11
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #3
  ret i32 %40
}

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

declare i32 @_tx_semaphore_get(ptr noundef, i64 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 = !{!"long", !7, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"int", !7, i64 0}
!13 = !{!14, !10, i64 0}
!14 = !{!"TX_SEMAPHORE_STRUCT", !10, i64 0, !6, i64 8, !10, i64 16, !6, i64 24, !12, i64 32, !6, i64 40, !6, i64 48, !6, i64 56}


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

; Function Attrs: nounwind uwtable
define dso_local i32 @_txe_semaphore_get(ptr noundef %0, i64 noundef %1) local_unnamed_addr #0 {
  %3 = icmp eq ptr %0, null
  br i1 %3, label %.thread, label %4

4:                                                ; preds = %2
  %5 = load i64, ptr %0, align 8, !tbaa !5
  %.not = icmp eq i64 %5, 1397050689
  br i1 %.not, label %6, label %.thread

6:                                                ; preds = %4
  %.not8 = icmp eq i64 %1, 0
  br i1 %.not8, label %.thread12, label %7

7:                                                ; preds = %6
  %8 = load i64, ptr @_tx_thread_system_state, align 8, !tbaa !12
  %.not9 = icmp ne i64 %8, 0
  %9 = load ptr, ptr @_tx_thread_current_ptr, align 8
  %.not14 = icmp eq ptr %9, @_tx_timer_thread
  %or.cond = select i1 %.not9, i1 true, i1 %.not14
  br i1 %or.cond, label %.thread, label %.thread12

.thread12:                                        ; preds = %7, %6
  %10 = tail call i32 @_tx_semaphore_get(ptr noundef nonnull %0, i64 noundef %1) #2
  br label %.thread

.thread:                                          ; preds = %7, %4, %2, %.thread12
  %.1 = phi i32 [ %10, %.thread12 ], [ 4, %7 ], [ 12, %4 ], [ 12, %2 ]
  ret i32 %.1
}

declare i32 @_tx_semaphore_get(ptr noundef, i64 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)"}
!5 = !{!6, !7, i64 0}
!6 = !{!"TX_SEMAPHORE_STRUCT", !7, i64 0, !10, i64 8, !7, i64 16, !10, i64 24, !11, i64 32, !10, i64 40, !10, i64 48, !10, i64 56}
!7 = !{!"long", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"any pointer", !8, i64 0}
!11 = !{!"int", !8, i64 0}
!12 = !{!7, !7, i64 0}


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