; LLVM IR from CerebusOSS/CereLink :: cbhwlib/cbHwlibHi.ll (Z29GetAnalogOrAudioOutChanNumberjj)

; 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"

@cb_pc_status_buffer_ptr = external global [4 x ptr], align 16

; 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
declare dso_local noundef zeroext i1 @_Z15IsChanAnalogOutjj(i32 noundef, i32 noundef) #1

; Function Attrs: mustprogress uwtable
declare dso_local noundef zeroext i1 @_Z14IsChanAudioOutjj(i32 noundef, i32 noundef) #1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i32 @_ZN10cbPcStatus18cbGetNumTotalChansEv(ptr noundef nonnull align 1 dereferenceable(6160)) #2 align 2

; Function Attrs: mustprogress uwtable
define dso_local noundef i32 @_Z29GetAnalogOrAudioOutChanNumberjj(i32 noundef %0, i32 noundef %1) #1 {
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  store i32 %0, ptr %3, align 4, !tbaa !5
  store i32 %1, ptr %4, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #3
  store i32 0, ptr %5, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #3
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #3
  %8 = load ptr, ptr @cb_pc_status_buffer_ptr, align 16, !tbaa !9
  %9 = call noundef i32 @_ZN10cbPcStatus18cbGetNumTotalChansEv(ptr noundef nonnull align 1 dereferenceable(6160) %8)
  store i32 %9, ptr %7, align 4, !tbaa !5
  %10 = load i32, ptr %3, align 4, !tbaa !5
  %11 = icmp ule i32 1, %10
  br i1 %11, label %12, label %36

12:                                               ; preds = %2
  store i32 1, ptr %6, align 4, !tbaa !5
  br label %13

13:                                               ; preds = %32, %12
  %14 = load i32, ptr %6, align 4, !tbaa !5
  %15 = load i32, ptr %7, align 4, !tbaa !5
  %16 = icmp ule i32 %14, %15
  br i1 %16, label %17, label %35

17:                                               ; preds = %13
  %18 = load i32, ptr %6, align 4, !tbaa !5
  %19 = load i32, ptr %4, align 4, !tbaa !5
  %20 = call noundef zeroext i1 @_Z15IsChanAnalogOutjj(i32 noundef %18, i32 noundef %19)
  br i1 %20, label %25, label %21

21:                                               ; preds = %17
  %22 = load i32, ptr %6, align 4, !tbaa !5
  %23 = load i32, ptr %4, align 4, !tbaa !5
  %24 = call noundef zeroext i1 @_Z14IsChanAudioOutjj(i32 noundef %22, i32 noundef %23)
  br i1 %24, label %25, label %31

25:                                               ; preds = %21, %17
  %26 = load i32, ptr %3, align 4, !tbaa !5
  %27 = add i32 %26, -1
  store i32 %27, ptr %3, align 4, !tbaa !5
  %28 = icmp eq i32 0, %27
  br i1 %28, label %29, label %31

29:                                               ; preds = %25
  %30 = load i32, ptr %6, align 4, !tbaa !5
  store i32 %30, ptr %5, align 4, !tbaa !5
  br label %35

31:                                               ; preds = %25, %21
  br label %32

32:                                               ; preds = %31
  %33 = load i32, ptr %6, align 4, !tbaa !5
  %34 = add i32 %33, 1
  store i32 %34, ptr %6, align 4, !tbaa !5
  br label %13, !llvm.loop !11

35:                                               ; preds = %29, %13
  br label %36

36:                                               ; preds = %35, %2
  %37 = load i32, ptr %5, align 4, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #3
  ret i32 %37
}

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 = { mustprogress 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 = { 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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"any pointer", !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"

@cb_pc_status_buffer_ptr = external local_unnamed_addr global [4 x ptr], align 16

; Function Attrs: mustprogress uwtable
declare dso_local noundef zeroext i1 @_Z15IsChanAnalogOutjj(i32 noundef, i32 noundef) local_unnamed_addr #0

; Function Attrs: mustprogress uwtable
declare dso_local noundef zeroext i1 @_Z14IsChanAudioOutjj(i32 noundef, i32 noundef) local_unnamed_addr #0

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i32 @_ZN10cbPcStatus18cbGetNumTotalChansEv(ptr noundef nonnull align 1 dereferenceable(6160)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
define dso_local noundef i32 @_Z29GetAnalogOrAudioOutChanNumberjj(i32 noundef %0, i32 noundef %1) local_unnamed_addr #0 {
  %3 = load ptr, ptr @cb_pc_status_buffer_ptr, align 16, !tbaa !5
  %4 = tail call noundef i32 @_ZN10cbPcStatus18cbGetNumTotalChansEv(ptr noundef nonnull align 1 dereferenceable(6160) %3)
  %.not = icmp eq i32 %0, 0
  %.not1516 = icmp eq i32 %4, 0
  %or.cond = or i1 %.not, %.not1516
  br i1 %or.cond, label %.loopexit, label %.lr.ph

.lr.ph:                                           ; preds = %2, %11
  %.018 = phi i32 [ %.1, %11 ], [ %0, %2 ]
  %.01117 = phi i32 [ %12, %11 ], [ 1, %2 ]
  %5 = tail call noundef zeroext i1 @_Z15IsChanAnalogOutjj(i32 noundef %.01117, i32 noundef %1)
  br i1 %5, label %8, label %6

6:                                                ; preds = %.lr.ph
  %7 = tail call noundef zeroext i1 @_Z14IsChanAudioOutjj(i32 noundef %.01117, i32 noundef %1)
  br i1 %7, label %8, label %11

8:                                                ; preds = %6, %.lr.ph
  %9 = add i32 %.018, -1
  %10 = icmp eq i32 %9, 0
  br i1 %10, label %.loopexit, label %11

11:                                               ; preds = %6, %8
  %.1 = phi i32 [ %9, %8 ], [ %.018, %6 ]
  %12 = add i32 %.01117, 1
  %.not15 = icmp ugt i32 %12, %4
  br i1 %.not15, label %.loopexit, label %.lr.ph, !llvm.loop !9

.loopexit:                                        ; preds = %11, %8, %2
  %.012 = phi i32 [ 0, %2 ], [ 0, %11 ], [ %.01117, %8 ]
  ret i32 %.012
}

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" }
attributes #1 = { mustprogress 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" }

!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 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,SROAPass,SimplifyCFGPass,TailCallElimPass