; LLVM IR from aap/pdp6 :: emu (test_dc)

; 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.IOBus = type { i64, i64, i64, i64, i64, i64, i32, [128 x %struct.Busdev] }
%struct.Busdev = type { ptr, ptr, i8 }

; Function Attrs: nounwind uwtable
declare dso_local void @wakedev(ptr noundef, i32 noundef) #0

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

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

; Function Attrs: nounwind uwtable
define dso_local void @bus_reset(ptr noundef %0) #0 {
  %2 = alloca ptr, align 8
  %3 = alloca i32, align 4
  store ptr %0, ptr %2, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #2
  %4 = load ptr, ptr %2, align 8, !tbaa !5
  %5 = getelementptr inbounds %struct.IOBus, ptr %4, i32 0, i32 3
  %6 = load i64, ptr %5, align 8, !tbaa !9
  %7 = or i64 %6, 34359738368
  store i64 %7, ptr %5, align 8, !tbaa !9
  store i32 0, ptr %3, align 4, !tbaa !13
  br label %8

8:                                                ; preds = %14, %1
  %9 = load i32, ptr %3, align 4, !tbaa !13
  %10 = icmp slt i32 %9, 128
  br i1 %10, label %11, label %17

11:                                               ; preds = %8
  %12 = load ptr, ptr %2, align 8, !tbaa !5
  %13 = load i32, ptr %3, align 4, !tbaa !13
  call void @wakedev(ptr noundef %12, i32 noundef %13)
  br label %14

14:                                               ; preds = %11
  %15 = load i32, ptr %3, align 4, !tbaa !13
  %16 = add nsw i32 %15, 1
  store i32 %16, ptr %3, align 4, !tbaa !13
  br label %8, !llvm.loop !14

17:                                               ; preds = %8
  %18 = load ptr, ptr %2, align 8, !tbaa !5
  %19 = getelementptr inbounds %struct.IOBus, ptr %18, i32 0, i32 3
  %20 = load i64, ptr %19, align 8, !tbaa !9
  %21 = and i64 %20, -34359738369
  store i64 %21, ptr %19, align 8, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #2
  ret void
}

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 = { 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, !11, i64 24}
!10 = !{!"IOBus", !11, i64 0, !11, i64 8, !11, i64 16, !11, i64 24, !11, i64 32, !11, i64 40, !12, i64 48, !7, i64 56}
!11 = !{!"long", !7, i64 0}
!12 = !{!"int", !7, i64 0}
!13 = !{!12, !12, i64 0}
!14 = distinct !{!14, !15}
!15 = !{!"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: nounwind uwtable
declare dso_local void @wakedev(ptr noundef, i32 noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
define dso_local void @bus_reset(ptr noundef %0) local_unnamed_addr #0 {
  %2 = getelementptr inbounds i8, ptr %0, i64 24
  %3 = load i64, ptr %2, align 8, !tbaa !5
  %4 = or i64 %3, 34359738368
  store i64 %4, ptr %2, align 8, !tbaa !5
  br label %5

5:                                                ; preds = %1, %5
  %.05 = phi i32 [ 0, %1 ], [ %6, %5 ]
  tail call void @wakedev(ptr noundef %0, i32 noundef %.05)
  %6 = add nuw nsw i32 %.05, 1
  %exitcond.not = icmp eq i32 %6, 128
  br i1 %exitcond.not, label %7, label %5, !llvm.loop !11

7:                                                ; preds = %5
  %8 = load i64, ptr %2, align 8, !tbaa !5
  %9 = and i64 %8, -34359738369
  store i64 %9, ptr %2, align 8, !tbaa !5
  ret void
}

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" }

!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, !7, i64 24}
!6 = !{!"IOBus", !7, i64 0, !7, i64 8, !7, i64 16, !7, i64 24, !7, i64 32, !7, i64 40, !10, i64 48, !8, i64 56}
!7 = !{!"long", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"int", !8, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}


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