; LLVM IR from Softmotions/iowow :: src/utils (iwarr)

; 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.iwlist = type { ptr, i64, i64, i64 }
%struct.iwlistitem = type { ptr, i64 }

; 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: nocallback nofree nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memmove.p0.p0.i64(ptr nocapture writeonly, ptr nocapture readonly, i64, i1 immarg) #1

; Function Attrs: nounwind uwtable
define dso_local ptr @iwlist_shift(ptr noundef %0, ptr noundef %1, ptr noundef %2) #2 {
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca ptr, align 8
  %8 = alloca i64, align 8
  %9 = alloca ptr, align 8
  store ptr %0, ptr %5, align 8, !tbaa !5
  store ptr %1, ptr %6, align 8, !tbaa !5
  store ptr %2, ptr %7, align 8, !tbaa !5
  %10 = load ptr, ptr %7, align 8, !tbaa !5
  store i64 0, ptr %10, align 8, !tbaa !9
  %11 = load ptr, ptr %5, align 8, !tbaa !5
  %12 = getelementptr inbounds %struct.iwlist, ptr %11, i32 0, i32 3
  %13 = load i64, ptr %12, align 8, !tbaa !11
  %14 = icmp ne i64 %13, 0
  br i1 %14, label %17, label %15

15:                                               ; preds = %3
  %16 = load ptr, ptr %7, align 8, !tbaa !5
  store i64 70011, ptr %16, align 8, !tbaa !9
  store ptr null, ptr %4, align 8
  br label %77

17:                                               ; preds = %3
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #3
  %18 = load ptr, ptr %5, align 8, !tbaa !5
  %19 = getelementptr inbounds %struct.iwlist, ptr %18, i32 0, i32 2
  %20 = load i64, ptr %19, align 8, !tbaa !13
  store i64 %20, ptr %8, align 8, !tbaa !9
  %21 = load ptr, ptr %5, align 8, !tbaa !5
  %22 = getelementptr inbounds %struct.iwlist, ptr %21, i32 0, i32 2
  %23 = load i64, ptr %22, align 8, !tbaa !13
  %24 = add i64 %23, 1
  store i64 %24, ptr %22, align 8, !tbaa !13
  %25 = load ptr, ptr %5, align 8, !tbaa !5
  %26 = getelementptr inbounds %struct.iwlist, ptr %25, i32 0, i32 3
  %27 = load i64, ptr %26, align 8, !tbaa !11
  %28 = add i64 %27, -1
  store i64 %28, ptr %26, align 8, !tbaa !11
  %29 = load ptr, ptr %5, align 8, !tbaa !5
  %30 = getelementptr inbounds %struct.iwlist, ptr %29, i32 0, i32 0
  %31 = load ptr, ptr %30, align 8, !tbaa !14
  %32 = load i64, ptr %8, align 8, !tbaa !9
  %33 = getelementptr inbounds %struct.iwlistitem, ptr %31, i64 %32
  %34 = getelementptr inbounds %struct.iwlistitem, ptr %33, i32 0, i32 1
  %35 = load i64, ptr %34, align 8, !tbaa !15
  %36 = load ptr, ptr %6, align 8, !tbaa !5
  store i64 %35, ptr %36, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #3
  %37 = load ptr, ptr %5, align 8, !tbaa !5
  %38 = getelementptr inbounds %struct.iwlist, ptr %37, i32 0, i32 0
  %39 = load ptr, ptr %38, align 8, !tbaa !14
  %40 = load i64, ptr %8, align 8, !tbaa !9
  %41 = getelementptr inbounds %struct.iwlistitem, ptr %39, i64 %40
  %42 = getelementptr inbounds %struct.iwlistitem, ptr %41, i32 0, i32 0
  %43 = load ptr, ptr %42, align 8, !tbaa !17
  store ptr %43, ptr %9, align 8, !tbaa !5
  %44 = load ptr, ptr %5, align 8, !tbaa !5
  %45 = getelementptr inbounds %struct.iwlist, ptr %44, i32 0, i32 2
  %46 = load i64, ptr %45, align 8, !tbaa !13
  %47 = and i64 %46, 255
  %48 = icmp ne i64 %47, 0
  br i1 %48, label %75, label %49

49:                                               ; preds = %17
  %50 = load ptr, ptr %5, align 8, !tbaa !5
  %51 = getelementptr inbounds %struct.iwlist, ptr %50, i32 0, i32 2
  %52 = load i64, ptr %51, align 8, !tbaa !13
  %53 = load ptr, ptr %5, align 8, !tbaa !5
  %54 = getelementptr inbounds %struct.iwlist, ptr %53, i32 0, i32 3
  %55 = load i64, ptr %54, align 8, !tbaa !11
  %56 = udiv i64 %55, 2
  %57 = icmp ugt i64 %52, %56
  br i1 %57, label %58, label %75

58:                                               ; preds = %49
  %59 = load ptr, ptr %5, align 8, !tbaa !5
  %60 = getelementptr inbounds %struct.iwlist, ptr %59, i32 0, i32 0
  %61 = load ptr, ptr %60, align 8, !tbaa !14
  %62 = load ptr, ptr %5, align 8, !tbaa !5
  %63 = getelementptr inbounds %struct.iwlist, ptr %62, i32 0, i32 0
  %64 = load ptr, ptr %63, align 8, !tbaa !14
  %65 = load ptr, ptr %5, align 8, !tbaa !5
  %66 = getelementptr inbounds %struct.iwlist, ptr %65, i32 0, i32 2
  %67 = load i64, ptr %66, align 8, !tbaa !13
  %68 = getelementptr inbounds %struct.iwlistitem, ptr %64, i64 %67
  %69 = load ptr, ptr %5, align 8, !tbaa !5
  %70 = getelementptr inbounds %struct.iwlist, ptr %69, i32 0, i32 3
  %71 = load i64, ptr %70, align 8, !tbaa !11
  %72 = mul i64 %71, 16
  call void @llvm.memmove.p0.p0.i64(ptr align 8 %61, ptr align 8 %68, i64 %72, i1 false)
  %73 = load ptr, ptr %5, align 8, !tbaa !5
  %74 = getelementptr inbounds %struct.iwlist, ptr %73, i32 0, i32 2
  store i64 0, ptr %74, align 8, !tbaa !13
  br label %75

75:                                               ; preds = %58, %49, %17
  %76 = load ptr, ptr %9, align 8, !tbaa !5
  store ptr %76, ptr %4, align 8
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #3
  br label %77

77:                                               ; preds = %75, %15
  %78 = load ptr, ptr %4, align 8
  ret ptr %78
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { 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 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"long", !7, i64 0}
!11 = !{!12, !10, i64 24}
!12 = !{!"iwlist", !6, i64 0, !10, i64 8, !10, i64 16, !10, i64 24}
!13 = !{!12, !10, i64 16}
!14 = !{!12, !6, i64 0}
!15 = !{!16, !10, i64 8}
!16 = !{!"iwlistitem", !6, i64 0, !10, i64 8}
!17 = !{!16, !6, 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"

%struct.iwlistitem = type { ptr, i64 }

; Function Attrs: mustprogress nocallback nofree nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memmove.p0.p0.i64(ptr nocapture writeonly, ptr nocapture readonly, i64, i1 immarg) #0

; Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(readwrite, inaccessiblemem: none) uwtable
define dso_local ptr @iwlist_shift(ptr nocapture noundef %0, ptr nocapture noundef writeonly %1, ptr nocapture noundef writeonly %2) local_unnamed_addr #1 {
  store i64 0, ptr %2, align 8, !tbaa !5
  %4 = getelementptr inbounds i8, ptr %0, i64 24
  %5 = load i64, ptr %4, align 8, !tbaa !9
  %.not = icmp eq i64 %5, 0
  br i1 %.not, label %6, label %7

6:                                                ; preds = %3
  store i64 70011, ptr %2, align 8, !tbaa !5
  br label %26

7:                                                ; preds = %3
  %8 = getelementptr inbounds i8, ptr %0, i64 16
  %9 = load i64, ptr %8, align 8, !tbaa !12
  %10 = add i64 %9, 1
  store i64 %10, ptr %8, align 8, !tbaa !12
  %11 = add i64 %5, -1
  store i64 %11, ptr %4, align 8, !tbaa !9
  %12 = load ptr, ptr %0, align 8, !tbaa !13
  %13 = getelementptr inbounds %struct.iwlistitem, ptr %12, i64 %9, i32 1
  %14 = load i64, ptr %13, align 8, !tbaa !14
  store i64 %14, ptr %1, align 8, !tbaa !5
  %15 = getelementptr inbounds %struct.iwlistitem, ptr %12, i64 %9
  %16 = load ptr, ptr %15, align 8, !tbaa !16
  %17 = load i64, ptr %8, align 8, !tbaa !12
  %18 = and i64 %17, 255
  %.not21 = icmp eq i64 %18, 0
  br i1 %.not21, label %19, label %26

19:                                               ; preds = %7
  %20 = load i64, ptr %4, align 8, !tbaa !9
  %21 = lshr i64 %20, 1
  %22 = icmp ugt i64 %17, %21
  br i1 %22, label %23, label %26

23:                                               ; preds = %19
  %24 = getelementptr inbounds %struct.iwlistitem, ptr %12, i64 %17
  %25 = shl i64 %20, 4
  tail call void @llvm.memmove.p0.p0.i64(ptr nonnull align 8 %12, ptr nonnull align 8 %24, i64 %25, i1 false)
  store i64 0, ptr %8, align 8, !tbaa !12
  br label %26

26:                                               ; preds = %7, %19, %23, %6
  %.0 = phi ptr [ null, %6 ], [ %16, %23 ], [ %16, %19 ], [ %16, %7 ]
  ret ptr %.0
}

attributes #0 = { mustprogress nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { mustprogress nofree norecurse nosync nounwind willreturn memory(readwrite, inaccessiblemem: none) 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 = !{!"long", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!10, !6, i64 24}
!10 = !{!"iwlist", !11, i64 0, !6, i64 8, !6, i64 16, !6, i64 24}
!11 = !{!"any pointer", !7, i64 0}
!12 = !{!10, !6, i64 16}
!13 = !{!10, !11, i64 0}
!14 = !{!15, !6, i64 8}
!15 = !{!"iwlistitem", !11, i64 0, !6, i64 8}
!16 = !{!15, !11, i64 0}


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