; LLVM IR from SSBMTonberry/pocketlzma :: ref_spec/lzma1900/CPP/7zip/UI/Common (LoadCodecs)

; 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.CCodecs = type <{ %struct.IUnknown, %class.CMyUnknownImp, [4 x i8], %class.CObjectVector.2, i8, i8, [6 x i8] }>
%struct.IUnknown = type { ptr }
%class.CMyUnknownImp = type { i32 }
%class.CObjectVector.2 = type { %class.CRecordVector }
%class.CRecordVector = type { ptr, i32, i32 }
%struct.CArcInfoEx = type { i32, ptr, ptr, %class.UString, %class.CObjectVector, ptr, i8, i8, i32, %class.CObjectVector.0 }
%class.UString = type { ptr, i32, i32 }
%class.CObjectVector = type { %class.CRecordVector }
%class.CObjectVector.0 = type { %class.CRecordVector }

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZNK7UString16IsEqualTo_NoCaseEPKw(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef ptr @_ZNK7UStringcvPKwEv(ptr noundef nonnull align 8 dereferenceable(16)) #1 align 2

; 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 i32 @_ZNK13CObjectVectorI10CArcInfoExE4SizeEv(ptr noundef nonnull align 8 dereferenceable(16)) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(88) ptr @_ZNK13CObjectVectorI10CArcInfoExEixEj(ptr noundef nonnull align 8 dereferenceable(16), i32 noundef) #1 align 2

; Function Attrs: mustprogress uwtable
define dso_local noundef i32 @_ZNK7CCodecs24FindFormatForArchiveTypeERK7UString(ptr noundef nonnull align 8 dereferenceable(34) %0, ptr noundef nonnull align 8 dereferenceable(16) %1) #2 align 2 {
  %3 = alloca i32, align 4
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  %8 = load ptr, ptr %4, align 8
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #3
  store i32 0, ptr %6, align 4, !tbaa !9
  br label %9

9:                                                ; preds = %26, %2
  %10 = load i32, ptr %6, align 4, !tbaa !9
  %11 = getelementptr inbounds %class.CCodecs, ptr %8, i32 0, i32 3
  %12 = call noundef i32 @_ZNK13CObjectVectorI10CArcInfoExE4SizeEv(ptr noundef nonnull align 8 dereferenceable(16) %11)
  %13 = icmp ult i32 %10, %12
  br i1 %13, label %15, label %14

14:                                               ; preds = %9
  store i32 2, ptr %7, align 4
  br label %29

15:                                               ; preds = %9
  %16 = getelementptr inbounds %class.CCodecs, ptr %8, i32 0, i32 3
  %17 = load i32, ptr %6, align 4, !tbaa !9
  %18 = call noundef nonnull align 8 dereferenceable(88) ptr @_ZNK13CObjectVectorI10CArcInfoExEixEj(ptr noundef nonnull align 8 dereferenceable(16) %16, i32 noundef %17)
  %19 = getelementptr inbounds %struct.CArcInfoEx, ptr %18, i32 0, i32 3
  %20 = load ptr, ptr %5, align 8, !tbaa !5
  %21 = call noundef ptr @_ZNK7UStringcvPKwEv(ptr noundef nonnull align 8 dereferenceable(16) %20)
  %22 = call noundef zeroext i1 @_ZNK7UString16IsEqualTo_NoCaseEPKw(ptr noundef nonnull align 8 dereferenceable(16) %19, ptr noundef %21)
  br i1 %22, label %23, label %25

23:                                               ; preds = %15
  %24 = load i32, ptr %6, align 4, !tbaa !9
  store i32 %24, ptr %3, align 4
  store i32 1, ptr %7, align 4
  br label %29

25:                                               ; preds = %15
  br label %26

26:                                               ; preds = %25
  %27 = load i32, ptr %6, align 4, !tbaa !9
  %28 = add i32 %27, 1
  store i32 %28, ptr %6, align 4, !tbaa !9
  br label %9, !llvm.loop !11

29:                                               ; preds = %23, %14
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #3
  %30 = load i32, ptr %7, align 4
  switch i32 %30, label %34 [
    i32 2, label %31
    i32 1, label %32
  ]

31:                                               ; preds = %29
  store i32 -1, ptr %3, align 4
  br label %32

32:                                               ; preds = %31, %29
  %33 = load i32, ptr %3, align 4
  ret i32 %33

34:                                               ; preds = %29
  unreachable
}

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 = { 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"

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZNK7UString16IsEqualTo_NoCaseEPKw(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef ptr @_ZNK7UStringcvPKwEv(ptr noundef nonnull align 8 dereferenceable(16)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i32 @_ZNK13CObjectVectorI10CArcInfoExE4SizeEv(ptr noundef nonnull align 8 dereferenceable(16)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(88) ptr @_ZNK13CObjectVectorI10CArcInfoExEixEj(ptr noundef nonnull align 8 dereferenceable(16), i32 noundef) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
define dso_local noundef i32 @_ZNK7CCodecs24FindFormatForArchiveTypeERK7UString(ptr noundef nonnull align 8 dereferenceable(34) %0, ptr noundef nonnull align 8 dereferenceable(16) %1) local_unnamed_addr #0 align 2 {
  %3 = getelementptr inbounds i8, ptr %0, i64 16
  %4 = tail call noundef i32 @_ZNK13CObjectVectorI10CArcInfoExE4SizeEv(ptr noundef nonnull align 8 dereferenceable(16) %3)
  %.not9.not = icmp eq i32 %4, 0
  br i1 %.not9.not, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %2, %9
  %.0710 = phi i32 [ %10, %9 ], [ 0, %2 ]
  %5 = tail call noundef nonnull align 8 dereferenceable(88) ptr @_ZNK13CObjectVectorI10CArcInfoExEixEj(ptr noundef nonnull align 8 dereferenceable(16) %3, i32 noundef %.0710)
  %6 = getelementptr inbounds i8, ptr %5, i64 24
  %7 = tail call noundef ptr @_ZNK7UStringcvPKwEv(ptr noundef nonnull align 8 dereferenceable(16) %1)
  %8 = tail call noundef zeroext i1 @_ZNK7UString16IsEqualTo_NoCaseEPKw(ptr noundef nonnull align 8 dereferenceable(16) %6, ptr noundef %7)
  br i1 %8, label %._crit_edge, label %9

9:                                                ; preds = %.lr.ph
  %10 = add nuw i32 %.0710, 1
  %11 = tail call noundef i32 @_ZNK13CObjectVectorI10CArcInfoExE4SizeEv(ptr noundef nonnull align 8 dereferenceable(16) %3)
  %.not = icmp ult i32 %10, %11
  br i1 %.not, label %.lr.ph, label %._crit_edge, !llvm.loop !5

._crit_edge:                                      ; preds = %9, %.lr.ph, %2
  %spec.select = phi i32 [ -1, %2 ], [ %.0710, %.lr.ph ], [ -1, %9 ]
  ret i32 %spec.select
}

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" }

!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,EarlyCSEPass,GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LICMPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass