; LLVM IR from bjourne/fast_snn_fpga :: src (opencl)

; 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: nounwind uwtable
define dso_local i32 @ocl_poll_event_until(ptr noundef %0, i32 noundef %1, i32 noundef %2) #1 {
  %4 = alloca i32, align 4
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  %8 = alloca i32, align 4
  %9 = alloca i32, align 4
  %10 = alloca i32, align 4
  store ptr %0, ptr %5, align 8, !tbaa !5
  store i32 %1, ptr %6, align 4, !tbaa !9
  store i32 %2, ptr %7, align 4, !tbaa !9
  br label %11

11:                                               ; preds = %27, %3
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #3
  call void @llvm.lifetime.start.p0(i64 4, ptr %9) #3
  %12 = load ptr, ptr %5, align 8, !tbaa !5
  %13 = call i32 @clGetEventInfo(ptr noundef %12, i32 noundef 4563, i64 noundef 4, ptr noundef %8, ptr noundef null)
  store i32 %13, ptr %9, align 4, !tbaa !9
  %14 = load i32, ptr %9, align 4, !tbaa !9
  %15 = icmp ne i32 %14, 0
  br i1 %15, label %16, label %18

16:                                               ; preds = %11
  %17 = load i32, ptr %9, align 4, !tbaa !9
  store i32 %17, ptr %4, align 4
  store i32 1, ptr %10, align 4
  br label %25

18:                                               ; preds = %11
  %19 = load i32, ptr %8, align 4, !tbaa !9
  %20 = load i32, ptr %6, align 4, !tbaa !9
  %21 = icmp eq i32 %19, %20
  br i1 %21, label %22, label %23

22:                                               ; preds = %18
  store i32 0, ptr %4, align 4
  store i32 1, ptr %10, align 4
  br label %25

23:                                               ; preds = %18
  %24 = load i32, ptr %7, align 4, !tbaa !9
  call void @sleep_cp(i32 noundef %24)
  store i32 0, ptr %10, align 4
  br label %25

25:                                               ; preds = %23, %22, %16
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #3
  %26 = load i32, ptr %10, align 4
  switch i32 %26, label %30 [
    i32 0, label %27
    i32 1, label %28
  ]

27:                                               ; preds = %25
  br label %11

28:                                               ; preds = %25
  %29 = load i32, ptr %4, align 4
  ret i32 %29

30:                                               ; preds = %25
  unreachable
}

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

declare void @sleep_cp(i32 noundef) #2

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


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

; Function Attrs: mustprogress 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 i32 @ocl_poll_event_until(ptr noundef %0, i32 noundef %1, i32 noundef %2) local_unnamed_addr #1 {
  %4 = alloca i32, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %4) #3
  %5 = call i32 @clGetEventInfo(ptr noundef %0, i32 noundef 4563, i64 noundef 4, ptr noundef nonnull %4, ptr noundef null) #3
  %.not13 = icmp ne i32 %5, 0
  %6 = load i32, ptr %4, align 4
  %7 = icmp eq i32 %6, %1
  %or.cond14 = select i1 %.not13, i1 true, i1 %7
  br i1 %or.cond14, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %3, %.lr.ph
  call void @sleep_cp(i32 noundef %2) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %4) #3
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %4) #3
  %8 = call i32 @clGetEventInfo(ptr noundef %0, i32 noundef 4563, i64 noundef 4, ptr noundef nonnull %4, ptr noundef null) #3
  %.not = icmp ne i32 %8, 0
  %9 = load i32, ptr %4, align 4
  %10 = icmp eq i32 %9, %1
  %or.cond = select i1 %.not, i1 true, i1 %10
  br i1 %or.cond, label %._crit_edge, label %.lr.ph

._crit_edge:                                      ; preds = %.lr.ph, %3
  %.lcssa = phi i32 [ %5, %3 ], [ %8, %.lr.ph ]
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %4) #3
  ret i32 %.lcssa
}

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

declare void @sleep_cp(i32 noundef) local_unnamed_addr #2

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


; Effective O3 passes: CorrelatedValuePropagationPass,GVNPass,GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,JumpThreadingPass,LCSSAPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,SROAPass,SimplifyCFGPass