; LLVM IR from pixelsdb/mini-pixels :: pixels-core/lib/encoding (RunLenIntDecoder)

; 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: mustprogress nounwind uwtable
declare dso_local noundef ptr @_ZNKSt19__shared_ptr_accessI10ByteBufferLN9__gnu_cxx12_Lock_policyE2ELb0ELb0EEptEv(ptr noundef nonnull align 1 dereferenceable(1)) #1 align 2

declare noundef zeroext i8 @_ZN10ByteBuffer3getEv(ptr noundef nonnull align 8 dereferenceable(62)) #2

; Function Attrs: mustprogress uwtable
define dso_local noundef i64 @_ZN16RunLenIntDecoder13bytesToLongBEERKSt10shared_ptrI10ByteBufferEi(ptr noundef nonnull align 8 dereferenceable(65) %0, ptr noundef nonnull align 8 dereferenceable(16) %1, i32 noundef %2) #3 align 2 {
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  %7 = alloca i64, align 8
  %8 = alloca i64, align 8
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  store i32 %2, ptr %6, align 4, !tbaa !9
  %9 = load ptr, ptr %4, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #4
  store i64 0, ptr %7, align 8, !tbaa !11
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #4
  store i64 0, ptr %8, align 8, !tbaa !11
  br label %10

10:                                               ; preds = %13, %3
  %11 = load i32, ptr %6, align 4, !tbaa !9
  %12 = icmp sgt i32 %11, 0
  br i1 %12, label %13, label %27

13:                                               ; preds = %10
  %14 = load i32, ptr %6, align 4, !tbaa !9
  %15 = add nsw i32 %14, -1
  store i32 %15, ptr %6, align 4, !tbaa !9
  %16 = load ptr, ptr %5, align 8, !tbaa !5
  %17 = call noundef ptr @_ZNKSt19__shared_ptr_accessI10ByteBufferLN9__gnu_cxx12_Lock_policyE2ELb0ELb0EEptEv(ptr noundef nonnull align 1 dereferenceable(1) %16) #4
  %18 = call noundef zeroext i8 @_ZN10ByteBuffer3getEv(ptr noundef nonnull align 8 dereferenceable(62) %17)
  %19 = zext i8 %18 to i64
  store i64 %19, ptr %8, align 8, !tbaa !11
  %20 = load i64, ptr %8, align 8, !tbaa !11
  %21 = load i32, ptr %6, align 4, !tbaa !9
  %22 = mul nsw i32 %21, 8
  %23 = zext i32 %22 to i64
  %24 = shl i64 %20, %23
  %25 = load i64, ptr %7, align 8, !tbaa !11
  %26 = or i64 %25, %24
  store i64 %26, ptr %7, align 8, !tbaa !11
  br label %10, !llvm.loop !13

27:                                               ; preds = %10
  %28 = load i64, ptr %7, align 8, !tbaa !11
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #4
  ret i64 %28
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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" }
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 = { 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 #4 = { 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++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"long", !7, i64 0}
!13 = distinct !{!13, !14}
!14 = !{!"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: mustprogress nounwind uwtable
declare dso_local noundef ptr @_ZNKSt19__shared_ptr_accessI10ByteBufferLN9__gnu_cxx12_Lock_policyE2ELb0ELb0EEptEv(ptr noundef nonnull align 1 dereferenceable(1)) local_unnamed_addr #0 align 2

declare noundef zeroext i8 @_ZN10ByteBuffer3getEv(ptr noundef nonnull align 8 dereferenceable(62)) local_unnamed_addr #1

; Function Attrs: mustprogress uwtable
define dso_local noundef i64 @_ZN16RunLenIntDecoder13bytesToLongBEERKSt10shared_ptrI10ByteBufferEi(ptr nocapture noundef nonnull readnone align 8 dereferenceable(65) %0, ptr noundef nonnull align 8 dereferenceable(16) %1, i32 noundef %2) local_unnamed_addr #2 align 2 {
  %4 = icmp sgt i32 %2, 0
  br i1 %4, label %.lr.ph.preheader, label %._crit_edge

.lr.ph.preheader:                                 ; preds = %3
  %5 = zext nneg i32 %2 to i64
  br label %.lr.ph

.lr.ph:                                           ; preds = %.lr.ph.preheader, %.lr.ph
  %indvars.iv = phi i64 [ %5, %.lr.ph.preheader ], [ %indvars.iv.next, %.lr.ph ]
  %.09 = phi i64 [ 0, %.lr.ph.preheader ], [ %11, %.lr.ph ]
  %indvars.iv.next = add nsw i64 %indvars.iv, -1
  %6 = tail call noundef ptr @_ZNKSt19__shared_ptr_accessI10ByteBufferLN9__gnu_cxx12_Lock_policyE2ELb0ELb0EEptEv(ptr noundef nonnull align 1 dereferenceable(1) %1) #3
  %7 = tail call noundef zeroext i8 @_ZN10ByteBuffer3getEv(ptr noundef nonnull align 8 dereferenceable(62) %6)
  %8 = zext i8 %7 to i64
  %9 = shl nsw i64 %indvars.iv.next, 3
  %10 = shl i64 %8, %9
  %11 = or i64 %10, %.09
  %12 = icmp ugt i64 %indvars.iv, 1
  br i1 %12, label %.lr.ph, label %._crit_edge, !llvm.loop !5

._crit_edge:                                      ; preds = %.lr.ph, %3
  %.0.lcssa = phi i64 [ 0, %3 ], [ %11, %.lr.ph ]
  ret i64 %.0.lcssa
}

attributes #0 = { 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 #1 = { "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 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 = distinct !{!5, !6}
!6 = !{!"llvm.loop.mustprogress"}


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