; LLVM IR from mncoppola/rpef :: utilities_src/squashfs4.2/lzma465/CPP/7zip/Archive/Common (OutStreamWithCRC)

; 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.COutStreamWithCRC = type <{ %struct.ISequentialOutStream, %class.CMyUnknownImp, [4 x i8], %class.CMyComPtr, i64, i32, i8, [3 x i8] }>
%struct.ISequentialOutStream = type { %struct.IUnknown }
%struct.IUnknown = type { ptr }
%class.CMyUnknownImp = type { i32 }
%class.CMyComPtr = type { ptr }

; Function Attrs: mustprogress uwtable
define dso_local noundef i32 @_ZN17COutStreamWithCRC5WriteEPKvjPj(ptr noundef nonnull align 8 dereferenceable(37) %0, ptr noundef %1, i32 noundef %2, ptr noundef %3) unnamed_addr #0 align 2 {
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca i32, align 4
  %8 = alloca ptr, align 8
  %9 = alloca i32, align 4
  %10 = alloca i32, align 4
  store ptr %0, ptr %5, align 8, !tbaa !5
  store ptr %1, ptr %6, align 8, !tbaa !5
  store i32 %2, ptr %7, align 4, !tbaa !9
  store ptr %3, ptr %8, align 8, !tbaa !5
  %11 = load ptr, ptr %5, align 8
  call void @llvm.lifetime.start.p0(i64 4, ptr %9) #4
  call void @llvm.lifetime.start.p0(i64 4, ptr %10) #4
  %12 = getelementptr inbounds %class.COutStreamWithCRC, ptr %11, i32 0, i32 3
  %13 = call noundef zeroext i1 @_ZNK9CMyComPtrI20ISequentialOutStreamEntEv(ptr noundef nonnull align 8 dereferenceable(8) %12)
  br i1 %13, label %14, label %16

14:                                               ; preds = %4
  %15 = load i32, ptr %7, align 4, !tbaa !9
  store i32 %15, ptr %9, align 4, !tbaa !9
  store i32 0, ptr %10, align 4, !tbaa !9
  br label %25

16:                                               ; preds = %4
  %17 = getelementptr inbounds %class.COutStreamWithCRC, ptr %11, i32 0, i32 3
  %18 = call noundef ptr @_ZNK9CMyComPtrI20ISequentialOutStreamEptEv(ptr noundef nonnull align 8 dereferenceable(8) %17)
  %19 = load ptr, ptr %6, align 8, !tbaa !5
  %20 = load i32, ptr %7, align 4, !tbaa !9
  %21 = load ptr, ptr %18, align 8, !tbaa !11
  %22 = getelementptr inbounds ptr, ptr %21, i64 5
  %23 = load ptr, ptr %22, align 8
  %24 = call noundef i32 %23(ptr noundef nonnull align 8 dereferenceable(8) %18, ptr noundef %19, i32 noundef %20, ptr noundef %9)
  store i32 %24, ptr %10, align 4, !tbaa !9
  br label %25

25:                                               ; preds = %16, %14
  %26 = getelementptr inbounds %class.COutStreamWithCRC, ptr %11, i32 0, i32 6
  %27 = load i8, ptr %26, align 4, !tbaa !13, !range !21, !noundef !22
  %28 = trunc i8 %27 to i1
  br i1 %28, label %29, label %37

29:                                               ; preds = %25
  %30 = getelementptr inbounds %class.COutStreamWithCRC, ptr %11, i32 0, i32 5
  %31 = load i32, ptr %30, align 8, !tbaa !23
  %32 = load ptr, ptr %6, align 8, !tbaa !5
  %33 = load i32, ptr %9, align 4, !tbaa !9
  %34 = zext i32 %33 to i64
  %35 = call i32 @CrcUpdate(i32 noundef %31, ptr noundef %32, i64 noundef %34)
  %36 = getelementptr inbounds %class.COutStreamWithCRC, ptr %11, i32 0, i32 5
  store i32 %35, ptr %36, align 8, !tbaa !23
  br label %37

37:                                               ; preds = %29, %25
  %38 = load i32, ptr %9, align 4, !tbaa !9
  %39 = zext i32 %38 to i64
  %40 = getelementptr inbounds %class.COutStreamWithCRC, ptr %11, i32 0, i32 4
  %41 = load i64, ptr %40, align 8, !tbaa !24
  %42 = add i64 %41, %39
  store i64 %42, ptr %40, align 8, !tbaa !24
  %43 = load ptr, ptr %8, align 8, !tbaa !5
  %44 = icmp ne ptr %43, null
  br i1 %44, label %45, label %48

45:                                               ; preds = %37
  %46 = load i32, ptr %9, align 4, !tbaa !9
  %47 = load ptr, ptr %8, align 8, !tbaa !5
  store i32 %46, ptr %47, align 4, !tbaa !9
  br label %48

48:                                               ; preds = %45, %37
  %49 = load i32, ptr %10, align 4, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 4, ptr %10) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #4
  ret i32 %49
}

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZNK9CMyComPtrI20ISequentialOutStreamEntEv(ptr noundef nonnull align 8 dereferenceable(8)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef ptr @_ZNK9CMyComPtrI20ISequentialOutStreamEptEv(ptr noundef nonnull align 8 dereferenceable(8)) #2 align 2

declare i32 @CrcUpdate(i32 noundef, ptr noundef, i64 noundef) #3

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

attributes #0 = { 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 #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { 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 #3 = { "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 = !{!"vtable pointer", !8, i64 0}
!13 = !{!14, !20, i64 36}
!14 = !{!"_ZTS17COutStreamWithCRC", !15, i64 0, !17, i64 8, !18, i64 16, !19, i64 24, !10, i64 32, !20, i64 36}
!15 = !{!"_ZTS20ISequentialOutStream", !16, i64 0}
!16 = !{!"_ZTS8IUnknown"}
!17 = !{!"_ZTS13CMyUnknownImp", !10, i64 0}
!18 = !{!"_ZTS9CMyComPtrI20ISequentialOutStreamE", !6, i64 0}
!19 = !{!"long long", !7, i64 0}
!20 = !{!"bool", !7, i64 0}
!21 = !{i8 0, i8 2}
!22 = !{}
!23 = !{!14, !10, i64 32}
!24 = !{!14, !19, i64 24}


; 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 uwtable
define dso_local noundef i32 @_ZN17COutStreamWithCRC5WriteEPKvjPj(ptr noundef nonnull align 8 dereferenceable(37) %0, ptr noundef %1, i32 noundef %2, ptr noundef writeonly %3) unnamed_addr #0 align 2 {
  %5 = alloca i32, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %5) #4
  %6 = getelementptr inbounds i8, ptr %0, i64 16
  %7 = tail call noundef zeroext i1 @_ZNK9CMyComPtrI20ISequentialOutStreamEntEv(ptr noundef nonnull align 8 dereferenceable(8) %6)
  br i1 %7, label %8, label %9

8:                                                ; preds = %4
  store i32 %2, ptr %5, align 4, !tbaa !5
  br label %15

9:                                                ; preds = %4
  %10 = tail call noundef ptr @_ZNK9CMyComPtrI20ISequentialOutStreamEptEv(ptr noundef nonnull align 8 dereferenceable(8) %6)
  %11 = load ptr, ptr %10, align 8, !tbaa !9
  %12 = getelementptr inbounds i8, ptr %11, i64 40
  %13 = load ptr, ptr %12, align 8
  %14 = call noundef i32 %13(ptr noundef nonnull align 8 dereferenceable(8) %10, ptr noundef %1, i32 noundef %2, ptr noundef nonnull %5)
  %.pre8.pre = load i32, ptr %5, align 4, !tbaa !5
  br label %15

15:                                               ; preds = %9, %8
  %.pre8 = phi i32 [ %2, %8 ], [ %.pre8.pre, %9 ]
  %.0 = phi i32 [ 0, %8 ], [ %14, %9 ]
  %16 = getelementptr inbounds i8, ptr %0, i64 36
  %17 = load i8, ptr %16, align 4, !tbaa !11, !range !20, !noundef !21
  %18 = trunc nuw i8 %17 to i1
  br i1 %18, label %19, label %24

19:                                               ; preds = %15
  %20 = getelementptr inbounds i8, ptr %0, i64 32
  %21 = load i32, ptr %20, align 8, !tbaa !22
  %22 = zext i32 %.pre8 to i64
  %23 = call i32 @CrcUpdate(i32 noundef %21, ptr noundef %1, i64 noundef %22)
  store i32 %23, ptr %20, align 8, !tbaa !22
  %.pre = load i32, ptr %5, align 4, !tbaa !5
  br label %24

24:                                               ; preds = %19, %15
  %25 = phi i32 [ %.pre, %19 ], [ %.pre8, %15 ]
  %26 = zext i32 %25 to i64
  %27 = getelementptr inbounds i8, ptr %0, i64 24
  %28 = load i64, ptr %27, align 8, !tbaa !23
  %29 = add i64 %28, %26
  store i64 %29, ptr %27, align 8, !tbaa !23
  %.not = icmp eq ptr %3, null
  br i1 %.not, label %31, label %30

30:                                               ; preds = %24
  store i32 %25, ptr %3, align 4, !tbaa !5
  br label %31

31:                                               ; preds = %30, %24
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %5) #4
  ret i32 %.0
}

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZNK9CMyComPtrI20ISequentialOutStreamEntEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef ptr @_ZNK9CMyComPtrI20ISequentialOutStreamEptEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #2 align 2

declare i32 @CrcUpdate(i32 noundef, ptr noundef, i64 noundef) local_unnamed_addr #3

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

attributes #0 = { 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 #1 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { 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 #3 = { "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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"vtable pointer", !8, i64 0}
!11 = !{!12, !19, i64 36}
!12 = !{!"_ZTS17COutStreamWithCRC", !13, i64 0, !15, i64 8, !16, i64 16, !18, i64 24, !6, i64 32, !19, i64 36}
!13 = !{!"_ZTS20ISequentialOutStream", !14, i64 0}
!14 = !{!"_ZTS8IUnknown"}
!15 = !{!"_ZTS13CMyUnknownImp", !6, i64 0}
!16 = !{!"_ZTS9CMyComPtrI20ISequentialOutStreamE", !17, i64 0}
!17 = !{!"any pointer", !7, i64 0}
!18 = !{!"long long", !7, i64 0}
!19 = !{!"bool", !7, i64 0}
!20 = !{i8 0, i8 2}
!21 = !{}
!22 = !{!12, !6, i64 32}
!23 = !{!12, !18, i64 24}


; Effective O3 passes: EarlyCSEPass,GVNPass,GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,PostOrderFunctionAttrsPass,SROAPass,TailCallElimPass