; LLVM IR from ctlst-tech/catpilot :: os/freertos/core/src (timers)

; 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"

@xTimerQueue = external hidden global ptr, align 8
@.str = external hidden unnamed_addr constant [8 x i8], align 1
@xTimerTaskHandle = external hidden global ptr, align 8

; Function Attrs: nounwind uwtable
define dso_local i64 @xTimerCreateTimerTask() #0 {
  %1 = alloca i64, align 8
  %2 = alloca ptr, align 8
  %3 = alloca ptr, align 8
  %4 = alloca i32, align 4
  call void @llvm.lifetime.start.p0(i64 8, ptr %1) #4
  store i64 0, ptr %1, align 8, !tbaa !5
  call void @prvCheckForValidListAndQueue()
  %5 = load ptr, ptr @xTimerQueue, align 8, !tbaa !9
  %6 = icmp ne ptr %5, null
  br i1 %6, label %7, label %16

7:                                                ; preds = %0
  call void @llvm.lifetime.start.p0(i64 8, ptr %2) #4
  store ptr null, ptr %2, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #4
  store ptr null, ptr %3, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #4
  call void @vApplicationGetTimerTaskMemory(ptr noundef %2, ptr noundef %3, ptr noundef %4)
  %8 = load i32, ptr %4, align 4, !tbaa !11
  %9 = load ptr, ptr %3, align 8, !tbaa !9
  %10 = load ptr, ptr %2, align 8, !tbaa !9
  %11 = call ptr @xTaskCreateStatic(ptr noundef @prvTimerTask, ptr noundef @.str, i32 noundef %8, ptr noundef null, i64 noundef 3, ptr noundef %9, ptr noundef %10)
  store ptr %11, ptr @xTimerTaskHandle, align 8, !tbaa !9
  %12 = load ptr, ptr @xTimerTaskHandle, align 8, !tbaa !9
  %13 = icmp ne ptr %12, null
  br i1 %13, label %14, label %15

14:                                               ; preds = %7
  store i64 1, ptr %1, align 8, !tbaa !5
  br label %15

15:                                               ; preds = %14, %7
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %2) #4
  br label %17

16:                                               ; preds = %0
  br label %17

17:                                               ; preds = %16, %15
  %18 = load i64, ptr %1, align 8, !tbaa !5
  %19 = icmp eq i64 %18, 0
  br i1 %19, label %20, label %22

20:                                               ; preds = %17
  call void @vPortRaiseBASEPRI()
  br label %21

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

22:                                               ; preds = %17
  %23 = load i64, ptr %1, align 8, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 8, ptr %1) #4
  ret i64 %23
}

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

; Function Attrs: nounwind uwtable
declare hidden void @prvCheckForValidListAndQueue() #0

declare void @vApplicationGetTimerTaskMemory(ptr noundef, ptr noundef, ptr noundef) #2

declare ptr @xTaskCreateStatic(ptr noundef, ptr noundef, i32 noundef, ptr noundef, i64 noundef, ptr noundef, ptr noundef) #2

; Function Attrs: nounwind uwtable
declare hidden void @prvTimerTask(ptr noundef) #0

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

; Function Attrs: alwaysinline nounwind uwtable
declare hidden void @vPortRaiseBASEPRI() #3

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 = { 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 #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 = !{!"long", !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}
!11 = !{!12, !12, i64 0}
!12 = !{!"int", !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"

@xTimerQueue = external hidden local_unnamed_addr global ptr, align 8
@.str = external hidden unnamed_addr constant [8 x i8], align 1
@xTimerTaskHandle = external hidden local_unnamed_addr global ptr, align 8

; Function Attrs: nounwind uwtable
define dso_local noundef i64 @xTimerCreateTimerTask() local_unnamed_addr #0 {
  %1 = alloca ptr, align 8
  %2 = alloca ptr, align 8
  %3 = alloca i32, align 4
  tail call void @prvCheckForValidListAndQueue()
  %4 = load ptr, ptr @xTimerQueue, align 8, !tbaa !5
  %.not = icmp eq ptr %4, null
  br i1 %.not, label %.critedge, label %5

5:                                                ; preds = %0
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %1) #4
  store ptr null, ptr %1, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %2) #4
  store ptr null, ptr %2, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %3) #4
  call void @vApplicationGetTimerTaskMemory(ptr noundef nonnull %1, ptr noundef nonnull %2, ptr noundef nonnull %3) #4
  %6 = load i32, ptr %3, align 4, !tbaa !9
  %7 = load ptr, ptr %2, align 8, !tbaa !5
  %8 = load ptr, ptr %1, align 8, !tbaa !5
  %9 = call ptr @xTaskCreateStatic(ptr noundef nonnull @prvTimerTask, ptr noundef nonnull @.str, i32 noundef %6, ptr noundef null, i64 noundef 3, ptr noundef %7, ptr noundef %8) #4
  store ptr %9, ptr @xTimerTaskHandle, align 8, !tbaa !5
  %.not2 = icmp eq ptr %9, null
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %3) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %1) #4
  br i1 %.not2, label %.critedge, label %11

.critedge:                                        ; preds = %0, %5
  call void @vPortRaiseBASEPRI()
  br label %10

10:                                               ; preds = %10, %.critedge
  br label %10

11:                                               ; preds = %5
  ret i64 1
}

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

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

declare void @vApplicationGetTimerTaskMemory(ptr noundef, ptr noundef, ptr noundef) local_unnamed_addr #2

declare ptr @xTaskCreateStatic(ptr noundef, ptr noundef, i32 noundef, ptr noundef, i64 noundef, ptr noundef, ptr noundef) local_unnamed_addr #2

; Function Attrs: nounwind uwtable
declare hidden void @prvTimerTask(ptr noundef) #0

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

; Function Attrs: alwaysinline nounwind uwtable
declare hidden void @vPortRaiseBASEPRI() local_unnamed_addr #3

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 = { 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 #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 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}


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