; LLVM IR from kala13x/libxutils :: src/data (buf)

; 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.XRingBuffer = type { ptr, i64, i64, i64, 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: nounwind uwtable
declare dso_local void @XByteBuffer_Clear(ptr noundef) #1

; Function Attrs: nounwind
declare void @free(ptr noundef) #2

; Function Attrs: nounwind uwtable
define dso_local void @XRingBuffer_Reset(ptr noundef %0) #1 {
  %2 = alloca ptr, align 8
  %3 = alloca i64, align 8
  store ptr %0, ptr %2, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #3
  store i64 0, ptr %3, align 8, !tbaa !9
  br label %4

4:                                                ; preds = %37, %1
  %5 = load i64, ptr %3, align 8, !tbaa !9
  %6 = load ptr, ptr %2, align 8, !tbaa !5
  %7 = getelementptr inbounds %struct.XRingBuffer, ptr %6, i32 0, i32 2
  %8 = load i64, ptr %7, align 8, !tbaa !11
  %9 = icmp ult i64 %5, %8
  br i1 %9, label %10, label %40

10:                                               ; preds = %4
  %11 = load ptr, ptr %2, align 8, !tbaa !5
  %12 = getelementptr inbounds %struct.XRingBuffer, ptr %11, i32 0, i32 0
  %13 = load ptr, ptr %12, align 8, !tbaa !13
  %14 = load i64, ptr %3, align 8, !tbaa !9
  %15 = getelementptr inbounds ptr, ptr %13, i64 %14
  %16 = load ptr, ptr %15, align 8, !tbaa !5
  %17 = icmp ne ptr %16, null
  br i1 %17, label %18, label %36

18:                                               ; preds = %10
  %19 = load ptr, ptr %2, align 8, !tbaa !5
  %20 = getelementptr inbounds %struct.XRingBuffer, ptr %19, i32 0, i32 0
  %21 = load ptr, ptr %20, align 8, !tbaa !13
  %22 = load i64, ptr %3, align 8, !tbaa !9
  %23 = getelementptr inbounds ptr, ptr %21, i64 %22
  %24 = load ptr, ptr %23, align 8, !tbaa !5
  call void @XByteBuffer_Clear(ptr noundef %24)
  %25 = load ptr, ptr %2, align 8, !tbaa !5
  %26 = getelementptr inbounds %struct.XRingBuffer, ptr %25, i32 0, i32 0
  %27 = load ptr, ptr %26, align 8, !tbaa !13
  %28 = load i64, ptr %3, align 8, !tbaa !9
  %29 = getelementptr inbounds ptr, ptr %27, i64 %28
  %30 = load ptr, ptr %29, align 8, !tbaa !5
  call void @free(ptr noundef %30) #3
  %31 = load ptr, ptr %2, align 8, !tbaa !5
  %32 = getelementptr inbounds %struct.XRingBuffer, ptr %31, i32 0, i32 0
  %33 = load ptr, ptr %32, align 8, !tbaa !13
  %34 = load i64, ptr %3, align 8, !tbaa !9
  %35 = getelementptr inbounds ptr, ptr %33, i64 %34
  store ptr null, ptr %35, align 8, !tbaa !5
  br label %36

36:                                               ; preds = %18, %10
  br label %37

37:                                               ; preds = %36
  %38 = load i64, ptr %3, align 8, !tbaa !9
  %39 = add i64 %38, 1
  store i64 %39, ptr %3, align 8, !tbaa !9
  br label %4, !llvm.loop !14

40:                                               ; preds = %4
  %41 = load ptr, ptr %2, align 8, !tbaa !5
  %42 = getelementptr inbounds %struct.XRingBuffer, ptr %41, i32 0, i32 3
  store i64 0, ptr %42, align 8, !tbaa !16
  %43 = load ptr, ptr %2, align 8, !tbaa !5
  %44 = getelementptr inbounds %struct.XRingBuffer, ptr %43, i32 0, i32 4
  store i64 0, ptr %44, align 8, !tbaa !17
  %45 = load ptr, ptr %2, align 8, !tbaa !5
  %46 = getelementptr inbounds %struct.XRingBuffer, ptr %45, i32 0, i32 1
  store i64 0, ptr %46, align 8, !tbaa !18
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #3
  ret void
}

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 = { nounwind "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 16}
!12 = !{!"XRingBuffer", !6, i64 0, !10, i64 8, !10, i64 16, !10, i64 24, !10, i64 32}
!13 = !{!12, !6, i64 0}
!14 = distinct !{!14, !15}
!15 = !{!"llvm.loop.mustprogress"}
!16 = !{!12, !10, i64 24}
!17 = !{!12, !10, i64 32}
!18 = !{!12, !10, i64 8}


; 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 @XByteBuffer_Clear(ptr noundef) local_unnamed_addr #0

; Function Attrs: mustprogress nounwind willreturn allockind("free") memory(argmem: readwrite, inaccessiblemem: readwrite)
declare void @free(ptr allocptr nocapture noundef) local_unnamed_addr #1

; Function Attrs: nounwind uwtable
define dso_local void @XRingBuffer_Reset(ptr nocapture noundef %0) local_unnamed_addr #0 {
  %2 = getelementptr inbounds i8, ptr %0, i64 16
  %3 = load i64, ptr %2, align 8, !tbaa !5
  %.not15 = icmp eq i64 %3, 0
  br i1 %.not15, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %1, %14
  %4 = phi i64 [ %15, %14 ], [ %3, %1 ]
  %.014 = phi i64 [ %16, %14 ], [ 0, %1 ]
  %5 = load ptr, ptr %0, align 8, !tbaa !11
  %6 = getelementptr inbounds ptr, ptr %5, i64 %.014
  %7 = load ptr, ptr %6, align 8, !tbaa !12
  %.not = icmp eq ptr %7, null
  br i1 %.not, label %14, label %8

8:                                                ; preds = %.lr.ph
  tail call void @XByteBuffer_Clear(ptr noundef nonnull %7)
  %9 = load ptr, ptr %0, align 8, !tbaa !11
  %10 = getelementptr inbounds ptr, ptr %9, i64 %.014
  %11 = load ptr, ptr %10, align 8, !tbaa !12
  tail call void @free(ptr noundef %11) #3
  %12 = load ptr, ptr %0, align 8, !tbaa !11
  %13 = getelementptr inbounds ptr, ptr %12, i64 %.014
  store ptr null, ptr %13, align 8, !tbaa !12
  %.pre = load i64, ptr %2, align 8, !tbaa !5
  br label %14

14:                                               ; preds = %.lr.ph, %8
  %15 = phi i64 [ %4, %.lr.ph ], [ %.pre, %8 ]
  %16 = add nuw i64 %.014, 1
  %17 = icmp ult i64 %16, %15
  br i1 %17, label %.lr.ph, label %._crit_edge, !llvm.loop !13

._crit_edge:                                      ; preds = %14, %1
  %18 = getelementptr inbounds i8, ptr %0, i64 24
  %19 = getelementptr inbounds i8, ptr %0, i64 8
  store i64 0, ptr %19, align 8, !tbaa !15
  tail call void @llvm.memset.p0.i64(ptr noundef nonnull align 8 dereferenceable(16) %18, i8 0, i64 16, i1 false)
  ret void
}

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #2

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 = { mustprogress nounwind willreturn allockind("free") memory(argmem: readwrite, inaccessiblemem: readwrite) "alloc-family"="malloc" "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 = { nocallback nofree nounwind willreturn memory(argmem: write) }
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, !10, i64 16}
!6 = !{!"XRingBuffer", !7, i64 0, !10, i64 8, !10, i64 16, !10, i64 24, !10, i64 32}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"long", !8, i64 0}
!11 = !{!6, !7, i64 0}
!12 = !{!7, !7, i64 0}
!13 = distinct !{!13, !14}
!14 = !{!"llvm.loop.mustprogress"}
!15 = !{!6, !10, i64 8}


; Effective O3 passes: CorrelatedValuePropagationPass,EarlyCSEPass,GVNPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LICMPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,MemCpyOptPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass