; LLVM IR from SSBMTonberry/pocketlzma :: ref_spec/lzma1900/CPP/7zip/Compress (XzEncoder)

; 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"

%"class.NCompress::NXz::CEncoder" = type { %struct.ICompressCoder, %struct.ICompressSetCoderProperties, %struct.ICompressSetCoderPropertiesOpt, %class.CMyUnknownImp, ptr, %struct.CXzProps }
%struct.ICompressCoder = type { %struct.IUnknown }
%struct.IUnknown = type { ptr }
%struct.ICompressSetCoderProperties = type { %struct.IUnknown }
%struct.ICompressSetCoderPropertiesOpt = type { %struct.IUnknown }
%class.CMyUnknownImp = type { i32 }
%struct.CXzProps = type { %struct.CLzma2EncProps, %struct.CXzFilterProps, i32, i64, i32, i32, i32, i32, i64 }
%struct.CLzma2EncProps = type { %struct._CLzmaEncProps, i64, i32, i32, i32 }
%struct._CLzmaEncProps = type { i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i64 }
%struct.CXzFilterProps = type { i32, i32, i32, i32 }
%struct.tagPROPVARIANT = type { i16, i16, i16, i16, %union.anon }
%union.anon = type { %struct._LARGE_INTEGER }
%struct._LARGE_INTEGER = type { i64 }

declare void @XzProps_Init(ptr 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: mustprogress uwtable
declare dso_local noundef i32 @_ZN9NCompress3NXz8CEncoder12SetCoderPropEjRK14tagPROPVARIANT(ptr noundef nonnull align 8 dereferenceable(176), i32 noundef, ptr noundef nonnull align 8 dereferenceable(16)) #2 align 2

; Function Attrs: mustprogress uwtable
define dso_local noundef i32 @_ZN9NCompress3NXz8CEncoder18SetCoderPropertiesEPKjPK14tagPROPVARIANTj(ptr noundef nonnull align 8 dereferenceable(176) %0, ptr noundef %1, ptr noundef %2, i32 noundef %3) unnamed_addr #2 align 2 {
  %5 = alloca i32, align 4
  %6 = alloca ptr, align 8
  %7 = alloca ptr, align 8
  %8 = alloca ptr, align 8
  %9 = alloca i32, align 4
  %10 = alloca i32, align 4
  %11 = alloca i32, align 4
  %12 = alloca i32, align 4
  store ptr %0, ptr %6, align 8, !tbaa !5
  store ptr %1, ptr %7, align 8, !tbaa !5
  store ptr %2, ptr %8, align 8, !tbaa !5
  store i32 %3, ptr %9, align 4, !tbaa !9
  %13 = load ptr, ptr %6, align 8
  %14 = getelementptr inbounds %"class.NCompress::NXz::CEncoder", ptr %13, i32 0, i32 5
  call void @XzProps_Init(ptr noundef %14)
  call void @llvm.lifetime.start.p0(i64 4, ptr %10) #3
  store i32 0, ptr %10, align 4, !tbaa !9
  br label %15

15:                                               ; preds = %39, %4
  %16 = load i32, ptr %10, align 4, !tbaa !9
  %17 = load i32, ptr %9, align 4, !tbaa !9
  %18 = icmp ult i32 %16, %17
  br i1 %18, label %20, label %19

19:                                               ; preds = %15
  store i32 2, ptr %11, align 4
  br label %42

20:                                               ; preds = %15
  call void @llvm.lifetime.start.p0(i64 4, ptr %12) #3
  %21 = load ptr, ptr %7, align 8, !tbaa !5
  %22 = load i32, ptr %10, align 4, !tbaa !9
  %23 = zext i32 %22 to i64
  %24 = getelementptr inbounds i32, ptr %21, i64 %23
  %25 = load i32, ptr %24, align 4, !tbaa !9
  %26 = load ptr, ptr %8, align 8, !tbaa !5
  %27 = load i32, ptr %10, align 4, !tbaa !9
  %28 = zext i32 %27 to i64
  %29 = getelementptr inbounds %struct.tagPROPVARIANT, ptr %26, i64 %28
  %30 = call noundef i32 @_ZN9NCompress3NXz8CEncoder12SetCoderPropEjRK14tagPROPVARIANT(ptr noundef nonnull align 8 dereferenceable(176) %13, i32 noundef %25, ptr noundef nonnull align 8 dereferenceable(16) %29)
  store i32 %30, ptr %12, align 4, !tbaa !9
  %31 = load i32, ptr %12, align 4, !tbaa !9
  %32 = icmp ne i32 %31, 0
  br i1 %32, label %33, label %35

33:                                               ; preds = %20
  %34 = load i32, ptr %12, align 4, !tbaa !9
  store i32 %34, ptr %5, align 4
  store i32 1, ptr %11, align 4
  br label %36

35:                                               ; preds = %20
  store i32 0, ptr %11, align 4
  br label %36

36:                                               ; preds = %35, %33
  call void @llvm.lifetime.end.p0(i64 4, ptr %12) #3
  %37 = load i32, ptr %11, align 4
  switch i32 %37, label %42 [
    i32 0, label %38
  ]

38:                                               ; preds = %36
  br label %39

39:                                               ; preds = %38
  %40 = load i32, ptr %10, align 4, !tbaa !9
  %41 = add i32 %40, 1
  store i32 %41, ptr %10, align 4, !tbaa !9
  br label %15, !llvm.loop !11

42:                                               ; preds = %36, %19
  call void @llvm.lifetime.end.p0(i64 4, ptr %10) #3
  %43 = load i32, ptr %11, align 4
  switch i32 %43, label %47 [
    i32 2, label %44
    i32 1, label %45
  ]

44:                                               ; preds = %42
  store i32 0, ptr %5, align 4
  br label %45

45:                                               ; preds = %44, %42
  %46 = load i32, ptr %5, align 4
  ret i32 %46

47:                                               ; preds = %42
  unreachable
}

attributes #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 = { 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 = !{!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 = 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"

%struct.tagPROPVARIANT = type { i16, i16, i16, i16, %union.anon }
%union.anon = type { %struct._LARGE_INTEGER }
%struct._LARGE_INTEGER = type { i64 }

declare void @XzProps_Init(ptr noundef) local_unnamed_addr #0

; Function Attrs: mustprogress uwtable
declare dso_local noundef i32 @_ZN9NCompress3NXz8CEncoder12SetCoderPropEjRK14tagPROPVARIANT(ptr noundef nonnull align 8 dereferenceable(176), i32 noundef, ptr noundef nonnull align 8 dereferenceable(16)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
define dso_local noundef i32 @_ZN9NCompress3NXz8CEncoder18SetCoderPropertiesEPKjPK14tagPROPVARIANTj(ptr noundef nonnull align 8 dereferenceable(176) %0, ptr nocapture noundef readonly %1, ptr noundef %2, i32 noundef %3) unnamed_addr #1 align 2 {
  %5 = getelementptr inbounds i8, ptr %0, i64 40
  tail call void @XzProps_Init(ptr noundef nonnull %5)
  %.not1617.not = icmp eq i32 %3, 0
  br i1 %.not1617.not, label %._crit_edge, label %.lr.ph.preheader

.lr.ph.preheader:                                 ; preds = %4
  %wide.trip.count = zext i32 %3 to i64
  br label %.lr.ph

6:                                                ; preds = %.lr.ph
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %exitcond.not = icmp eq i64 %indvars.iv.next, %wide.trip.count
  br i1 %exitcond.not, label %._crit_edge, label %.lr.ph, !llvm.loop !5

.lr.ph:                                           ; preds = %.lr.ph.preheader, %6
  %indvars.iv = phi i64 [ 0, %.lr.ph.preheader ], [ %indvars.iv.next, %6 ]
  %7 = getelementptr inbounds i32, ptr %1, i64 %indvars.iv
  %8 = load i32, ptr %7, align 4, !tbaa !7
  %9 = getelementptr inbounds %struct.tagPROPVARIANT, ptr %2, i64 %indvars.iv
  %10 = tail call noundef i32 @_ZN9NCompress3NXz8CEncoder12SetCoderPropEjRK14tagPROPVARIANT(ptr noundef nonnull align 8 dereferenceable(176) %0, i32 noundef %8, ptr noundef nonnull align 8 dereferenceable(16) %9)
  %.not = icmp eq i32 %10, 0
  br i1 %.not, label %6, label %._crit_edge

._crit_edge:                                      ; preds = %.lr.ph, %6, %4
  %spec.select = phi i32 [ 0, %4 ], [ 0, %6 ], [ %10, %.lr.ph ]
  ret i32 %spec.select
}

attributes #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 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 = distinct !{!5, !6}
!6 = !{!"llvm.loop.mustprogress"}
!7 = !{!8, !8, i64 0}
!8 = !{!"int", !9, i64 0}
!9 = !{!"omnipotent char", !10, i64 0}
!10 = !{!"Simple C++ TBAA"}


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