; LLVM IR from whoiswelliton/Computer_Engineering_UTFPR-PB :: Embedded_Systems/TIVA Connected TM4C1294XL Projects/00 - freeRTOS10_on_TIVA (xQueueGiveMutexRecursive)

; 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.QueueDefinition = type { ptr, ptr, %union.anon, %struct.xLIST, %struct.xLIST, i64, i64, i64, i8, i8 }
%union.anon = type { %struct.QueuePointers }
%struct.QueuePointers = type { ptr, ptr }
%struct.xLIST = type { i64, ptr, %struct.xMINI_LIST_ITEM }
%struct.xMINI_LIST_ITEM = type { i32, ptr, ptr }
%struct.SemaphoreData = type { ptr, i64 }

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: alwaysinline nounwind uwtable
declare hidden void @vPortRaiseBASEPRI() #1

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: nounwind uwtable
define dso_local i64 @xQueueGiveMutexRecursive(ptr noundef %0) #2 {
  %2 = alloca ptr, align 8
  %3 = alloca i64, align 8
  %4 = alloca ptr, align 8
  store ptr %0, ptr %2, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #4
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #4
  %5 = load ptr, ptr %2, align 8, !tbaa !5
  store ptr %5, ptr %4, align 8, !tbaa !5
  %6 = load ptr, ptr %4, align 8, !tbaa !5
  %7 = icmp eq ptr %6, null
  br i1 %7, label %8, label %10

8:                                                ; preds = %1
  call void @vPortRaiseBASEPRI()
  br label %9

9:                                                ; preds = %9, %8
  br label %9

10:                                               ; preds = %1
  %11 = load ptr, ptr %4, align 8, !tbaa !5
  %12 = getelementptr inbounds %struct.QueueDefinition, ptr %11, i32 0, i32 2
  %13 = getelementptr inbounds %struct.SemaphoreData, ptr %12, i32 0, i32 0
  %14 = load ptr, ptr %13, align 8, !tbaa !9
  %15 = call ptr @xTaskGetCurrentTaskHandle()
  %16 = icmp eq ptr %14, %15
  br i1 %16, label %17, label %33

17:                                               ; preds = %10
  %18 = load ptr, ptr %4, align 8, !tbaa !5
  %19 = getelementptr inbounds %struct.QueueDefinition, ptr %18, i32 0, i32 2
  %20 = getelementptr inbounds %struct.SemaphoreData, ptr %19, i32 0, i32 1
  %21 = load i64, ptr %20, align 8, !tbaa !9
  %22 = add i64 %21, -1
  store i64 %22, ptr %20, align 8, !tbaa !9
  %23 = load ptr, ptr %4, align 8, !tbaa !5
  %24 = getelementptr inbounds %struct.QueueDefinition, ptr %23, i32 0, i32 2
  %25 = getelementptr inbounds %struct.SemaphoreData, ptr %24, i32 0, i32 1
  %26 = load i64, ptr %25, align 8, !tbaa !9
  %27 = icmp eq i64 %26, 0
  br i1 %27, label %28, label %31

28:                                               ; preds = %17
  %29 = load ptr, ptr %4, align 8, !tbaa !5
  %30 = call i64 @xQueueGenericSend(ptr noundef %29, ptr noundef null, i32 noundef 0, i64 noundef 0)
  br label %32

31:                                               ; preds = %17
  br label %32

32:                                               ; preds = %31, %28
  store i64 1, ptr %3, align 8, !tbaa !10
  br label %34

33:                                               ; preds = %10
  store i64 0, ptr %3, align 8, !tbaa !10
  br label %34

34:                                               ; preds = %33, %32
  %35 = load i64, ptr %3, align 8, !tbaa !10
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #4
  ret i64 %35
}

declare ptr @xTaskGetCurrentTaskHandle() #3

; Function Attrs: nounwind uwtable
declare dso_local i64 @xQueueGenericSend(ptr noundef, ptr noundef, i32 noundef, i64 noundef) #2

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { alwaysinline 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 #2 = { 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 #3 = { "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"}
!9 = !{!7, !7, i64 0}
!10 = !{!11, !11, i64 0}
!11 = !{!"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"

; Function Attrs: alwaysinline nounwind uwtable
declare hidden void @vPortRaiseBASEPRI() local_unnamed_addr #0

; Function Attrs: nounwind uwtable
define dso_local range(i64 0, 2) i64 @xQueueGiveMutexRecursive(ptr noundef %0) local_unnamed_addr #1 {
  %2 = icmp eq ptr %0, null
  br i1 %2, label %3, label %5

3:                                                ; preds = %1
  tail call void @vPortRaiseBASEPRI()
  br label %4

4:                                                ; preds = %4, %3
  br label %4

5:                                                ; preds = %1
  %6 = getelementptr inbounds i8, ptr %0, i64 16
  %7 = load ptr, ptr %6, align 8, !tbaa !5
  %8 = tail call ptr @xTaskGetCurrentTaskHandle() #3
  %9 = icmp eq ptr %7, %8
  br i1 %9, label %10, label %17

10:                                               ; preds = %5
  %11 = getelementptr inbounds i8, ptr %0, i64 24
  %12 = load i64, ptr %11, align 8, !tbaa !5
  %13 = add i64 %12, -1
  store i64 %13, ptr %11, align 8, !tbaa !5
  %14 = icmp eq i64 %13, 0
  br i1 %14, label %15, label %17

15:                                               ; preds = %10
  %16 = tail call i64 @xQueueGenericSend(ptr noundef nonnull %0, ptr noundef null, i32 noundef 0, i64 noundef 0)
  br label %17

17:                                               ; preds = %5, %15, %10
  %.0 = phi i64 [ 1, %10 ], [ 1, %15 ], [ 0, %5 ]
  ret i64 %.0
}

declare ptr @xTaskGetCurrentTaskHandle() local_unnamed_addr #2

; Function Attrs: nounwind uwtable
declare dso_local i64 @xQueueGenericSend(ptr noundef, ptr noundef, i32 noundef, i64 noundef) local_unnamed_addr #1

attributes #0 = { alwaysinline 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 = { 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 #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 = !{!"omnipotent char", !7, i64 0}
!7 = !{!"Simple C/C++ TBAA"}


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