; LLVM IR from aras-p/ToyPathTracer :: Cpp/Source/enkiTS/TaskScheduler.ll (ZN4enki13TaskScheduler10TryRunTaskEjRj)

; 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"

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

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

; Function Attrs: mustprogress uwtable
define dso_local noundef zeroext i1 @_ZN4enki13TaskScheduler10TryRunTaskEjRj(ptr noundef nonnull align 8 dereferenceable(220) %0, i32 noundef %1, ptr noundef nonnull align 4 dereferenceable(4) %2) #1 align 2 {
  %4 = alloca i1, align 1
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  %7 = alloca ptr, align 8
  %8 = alloca i32, align 4
  %9 = alloca i32, align 4
  store ptr %0, ptr %5, align 8, !tbaa !5
  store i32 %1, ptr %6, align 4, !tbaa !9
  store ptr %2, ptr %7, align 8, !tbaa !5
  %10 = load ptr, ptr %5, align 8
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #2
  store i32 0, ptr %8, align 4, !tbaa !9
  br label %11

11:                                               ; preds = %22, %3
  %12 = load i32, ptr %8, align 4, !tbaa !9
  %13 = icmp slt i32 %12, 3
  br i1 %13, label %15, label %14

14:                                               ; preds = %11
  store i32 2, ptr %9, align 4
  br label %25

15:                                               ; preds = %11
  %16 = load i32, ptr %6, align 4, !tbaa !9
  %17 = load i32, ptr %8, align 4, !tbaa !9
  %18 = load ptr, ptr %7, align 8, !tbaa !5
  %19 = call noundef zeroext i1 @_ZN4enki13TaskScheduler10TryRunTaskEjjRj(ptr noundef nonnull align 8 dereferenceable(220) %10, i32 noundef %16, i32 noundef %17, ptr noundef nonnull align 4 dereferenceable(4) %18)
  br i1 %19, label %20, label %21

20:                                               ; preds = %15
  store i1 true, ptr %4, align 1
  store i32 1, ptr %9, align 4
  br label %25

21:                                               ; preds = %15
  br label %22

22:                                               ; preds = %21
  %23 = load i32, ptr %8, align 4, !tbaa !9
  %24 = add nsw i32 %23, 1
  store i32 %24, ptr %8, align 4, !tbaa !9
  br label %11, !llvm.loop !11

25:                                               ; preds = %20, %14
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #2
  %26 = load i32, ptr %9, align 4
  switch i32 %26, label %30 [
    i32 2, label %27
    i32 1, label %28
  ]

27:                                               ; preds = %25
  store i1 false, ptr %4, align 1
  br label %28

28:                                               ; preds = %27, %25
  %29 = load i1, ptr %4, align 1
  ret i1 %29

30:                                               ; preds = %25
  unreachable
}

; Function Attrs: mustprogress uwtable
declare dso_local noundef zeroext i1 @_ZN4enki13TaskScheduler10TryRunTaskEjjRj(ptr noundef nonnull align 8 dereferenceable(220), i32 noundef, i32 noundef, ptr noundef nonnull align 4 dereferenceable(4)) #1 align 2

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { mustprogress 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 }

!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++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"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"

; Function Attrs: mustprogress uwtable
define dso_local noundef zeroext i1 @_ZN4enki13TaskScheduler10TryRunTaskEjRj(ptr noundef nonnull align 8 dereferenceable(220) %0, i32 noundef %1, ptr noundef nonnull align 4 dereferenceable(4) %2) local_unnamed_addr #0 align 2 {
  %4 = tail call noundef zeroext i1 @_ZN4enki13TaskScheduler10TryRunTaskEjjRj(ptr noundef nonnull align 8 dereferenceable(220) %0, i32 noundef %1, i32 noundef 0, ptr noundef nonnull align 4 dereferenceable(4) %2)
  br i1 %4, label %9, label %5

5:                                                ; preds = %3
  %6 = tail call noundef zeroext i1 @_ZN4enki13TaskScheduler10TryRunTaskEjjRj(ptr noundef nonnull align 8 dereferenceable(220) %0, i32 noundef %1, i32 noundef 1, ptr noundef nonnull align 4 dereferenceable(4) %2)
  br i1 %6, label %9, label %7

7:                                                ; preds = %5
  %8 = tail call noundef zeroext i1 @_ZN4enki13TaskScheduler10TryRunTaskEjjRj(ptr noundef nonnull align 8 dereferenceable(220) %0, i32 noundef %1, i32 noundef 2, ptr noundef nonnull align 4 dereferenceable(4) %2)
  br label %9

9:                                                ; preds = %7, %5, %3
  %.lcssa = phi i1 [ true, %3 ], [ true, %5 ], [ %8, %7 ]
  ret i1 %.lcssa
}

; Function Attrs: mustprogress uwtable
declare dso_local noundef zeroext i1 @_ZN4enki13TaskScheduler10TryRunTaskEjjRj(ptr noundef nonnull align 8 dereferenceable(220), i32 noundef, i32 noundef, ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #0 align 2

attributes #0 = { mustprogress 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" }

!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: CorrelatedValuePropagationPass,GVNPass,GlobalOptPass,IPSCCPPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,LCSSAPass,LoopRotatePass,SROAPass,SimplifyCFGPass,TailCallElimPass