; LLVM IR from intel/qpl :: sources/middle-layer/compression/deflate/streams (sw_compression_stream)

; 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.qpl::ml::compression::deflate_state" = type { %"class.qpl::ml::compression::compression_stream.base", ptr, ptr, %"class.qpl::ml::compression::huffman_table_icf", %struct.deflate_hash_table_t, %"class.qpl::ml::compression::index_table_t", i8, i8, ptr, i8, ptr, i32, i32, i32, i8, ptr, ptr }
%"class.qpl::ml::compression::compression_stream.base" = type <{ ptr, %"struct.qpl::ml::util::checksum_accumulator", i8, i8, %"struct.qpl::ml::compression::chunk_type", i32, i32 }>
%"struct.qpl::ml::util::checksum_accumulator" = type { i32, i32 }
%"struct.qpl::ml::compression::chunk_type" = type { i8, i8 }
%"class.qpl::ml::compression::huffman_table_icf" = type { ptr, i32, i32 }
%struct.deflate_hash_table_t = type { ptr, ptr, i32, i32, i32, i32, i32 }
%"class.qpl::ml::compression::index_table_t" = type <{ ptr, i32, i32, i32, [4 x i8] }>
%struct.isal_zstream = type { ptr, i32, i32, ptr, i32, i32, ptr, i32, i32, ptr, i16, i16, i16, i16, %struct.isal_zstate }
%struct.isal_zstate = type { i32, i32, i32, i32, i32, i32, %struct.BitBuf2, i32, i8, i8, i8, i8, i16, i32, [16 x i8], i32, i32, i32, i32, [65824 x i8], [8192 x i16] }
%struct.BitBuf2 = type { i64, i32, ptr, ptr, ptr }

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

declare i32 @__gxx_personality_v0(...)

; Function Attrs: noinline noreturn nounwind uwtable
declare hidden void @__clang_call_terminate(ptr noundef) #1

; 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
define dso_local void @_ZN3qpl2ml11compression13deflate_stateILNS0_16execution_path_tE2EE15dump_bit_bufferEv(ptr noundef nonnull align 8 dereferenceable(192) %0) #2 align 2 personality ptr @__gxx_personality_v0 {
  %2 = alloca ptr, align 8
  %3 = alloca ptr, align 8
  %4 = alloca i32, align 4
  store ptr %0, ptr %2, align 8, !tbaa !5
  %5 = load ptr, ptr %2, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #4
  %6 = getelementptr inbounds %"class.qpl::ml::compression::deflate_state", ptr %5, i32 0, i32 1
  %7 = load ptr, ptr %6, align 8, !tbaa !9
  %8 = getelementptr inbounds %struct.isal_zstream, ptr %7, i32 0, i32 14
  store ptr %8, ptr %3, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #4
  %9 = load ptr, ptr %3, align 8, !tbaa !5
  %10 = getelementptr inbounds %struct.isal_zstate, ptr %9, i32 0, i32 6
  %11 = invoke noundef i32 @_ZL11buffer_usedP7BitBuf2(ptr noundef %10)
          to label %12 unwind label %32

12:                                               ; preds = %1
  store i32 %11, ptr %4, align 4, !tbaa !23
  %13 = load ptr, ptr %3, align 8, !tbaa !5
  %14 = getelementptr inbounds %struct.isal_zstate, ptr %13, i32 0, i32 6
  %15 = invoke noundef ptr @_ZL10buffer_ptrP7BitBuf2(ptr noundef %14)
          to label %16 unwind label %32

16:                                               ; preds = %12
  %17 = getelementptr inbounds %"class.qpl::ml::compression::deflate_state", ptr %5, i32 0, i32 1
  %18 = load ptr, ptr %17, align 8, !tbaa !9
  %19 = getelementptr inbounds %struct.isal_zstream, ptr %18, i32 0, i32 3
  store ptr %15, ptr %19, align 8, !tbaa !24
  %20 = load i32, ptr %4, align 4, !tbaa !23
  %21 = getelementptr inbounds %"class.qpl::ml::compression::deflate_state", ptr %5, i32 0, i32 1
  %22 = load ptr, ptr %21, align 8, !tbaa !9
  %23 = getelementptr inbounds %struct.isal_zstream, ptr %22, i32 0, i32 4
  %24 = load i32, ptr %23, align 8, !tbaa !31
  %25 = sub i32 %24, %20
  store i32 %25, ptr %23, align 8, !tbaa !31
  %26 = load i32, ptr %4, align 4, !tbaa !23
  %27 = getelementptr inbounds %"class.qpl::ml::compression::deflate_state", ptr %5, i32 0, i32 1
  %28 = load ptr, ptr %27, align 8, !tbaa !9
  %29 = getelementptr inbounds %struct.isal_zstream, ptr %28, i32 0, i32 5
  %30 = load i32, ptr %29, align 4, !tbaa !32
  %31 = add i32 %30, %26
  store i32 %31, ptr %29, align 4, !tbaa !32
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #4
  ret void

32:                                               ; preds = %12, %1
  %33 = landingpad { ptr, i32 }
          catch ptr null
  %34 = extractvalue { ptr, i32 } %33, 0
  call void @__clang_call_terminate(ptr %34) #5
  unreachable
}

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare hidden noundef i32 @_ZL11buffer_usedP7BitBuf2(ptr noundef) #3

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare hidden noundef ptr @_ZL10buffer_ptrP7BitBuf2(ptr noundef) #3

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { noinline noreturn nounwind uwtable "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 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 = { inlinehint 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 #4 = { nounwind }
attributes #5 = { noreturn 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, !6, i64 32}
!10 = !{!"_ZTSN3qpl2ml11compression13deflate_stateILNS0_16execution_path_tE2EEE", !11, i64 0, !6, i64 32, !6, i64 40, !18, i64 48, !19, i64 64, !20, i64 104, !21, i64 128, !22, i64 129, !6, i64 136, !17, i64 144, !6, i64 152, !13, i64 160, !13, i64 164, !13, i64 168, !17, i64 172, !6, i64 176, !6, i64 184}
!11 = !{!"_ZTSN3qpl2ml11compression18compression_streamE", !12, i64 8, !14, i64 16, !15, i64 17, !16, i64 18, !13, i64 20, !13, i64 24}
!12 = !{!"_ZTSN3qpl2ml4util20checksum_accumulatorE", !13, i64 0, !13, i64 4}
!13 = !{!"int", !7, i64 0}
!14 = !{!"_ZTSN3qpl2ml11compression18compression_mode_tE", !7, i64 0}
!15 = !{!"_ZTSN3qpl2ml11compression17mini_block_size_tE", !7, i64 0}
!16 = !{!"_ZTSN3qpl2ml11compression10chunk_typeE", !17, i64 0, !17, i64 1}
!17 = !{!"bool", !7, i64 0}
!18 = !{!"_ZTSN3qpl2ml11compression17huffman_table_icfE", !6, i64 0, !13, i64 8, !13, i64 12}
!19 = !{!"_ZTS20deflate_hash_table_t", !6, i64 0, !6, i64 8, !13, i64 16, !13, i64 20, !13, i64 24, !13, i64 28, !13, i64 32}
!20 = !{!"_ZTSN3qpl2ml11compression13index_table_tE", !6, i64 0, !13, i64 8, !13, i64 12, !13, i64 16}
!21 = !{!"_ZTSN3qpl2ml11compression19compression_level_tE", !7, i64 0}
!22 = !{!"_ZTSN3qpl2ml11compression20dictionary_support_tE", !7, i64 0}
!23 = !{!13, !13, i64 0}
!24 = !{!25, !6, i64 16}
!25 = !{!"_ZTS12isal_zstream", !6, i64 0, !13, i64 8, !13, i64 12, !6, i64 16, !13, i64 24, !13, i64 28, !6, i64 32, !13, i64 40, !13, i64 44, !6, i64 48, !26, i64 56, !26, i64 58, !26, i64 60, !26, i64 62, !27, i64 64}
!26 = !{!"short", !7, i64 0}
!27 = !{!"_ZTS11isal_zstate", !13, i64 0, !13, i64 4, !13, i64 8, !13, i64 12, !13, i64 16, !28, i64 20, !29, i64 24, !13, i64 64, !7, i64 68, !7, i64 69, !7, i64 70, !7, i64 71, !26, i64 72, !13, i64 76, !7, i64 80, !13, i64 96, !13, i64 100, !13, i64 104, !13, i64 108, !7, i64 112, !7, i64 65936}
!28 = !{!"_ZTS17isal_zstate_state", !7, i64 0}
!29 = !{!"_ZTS7BitBuf2", !30, i64 0, !13, i64 8, !6, i64 16, !6, i64 24, !6, i64 32}
!30 = !{!"long", !7, i64 0}
!31 = !{!25, !13, i64 24}
!32 = !{!25, !13, i64 28}


; 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"

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nounwind uwtable
define dso_local void @_ZN3qpl2ml11compression13deflate_stateILNS0_16execution_path_tE2EE15dump_bit_bufferEv(ptr nocapture noundef nonnull readonly align 8 dereferenceable(192) %0) local_unnamed_addr #0 align 2 personality ptr @__gxx_personality_v0 {
  %2 = getelementptr inbounds i8, ptr %0, i64 32
  %3 = load ptr, ptr %2, align 8, !tbaa !5
  %4 = getelementptr inbounds i8, ptr %3, i64 88
  %5 = tail call noundef i32 @_ZL11buffer_usedP7BitBuf2(ptr noundef nonnull %4)
  %6 = tail call noundef ptr @_ZL10buffer_ptrP7BitBuf2(ptr noundef nonnull %4)
  %7 = load ptr, ptr %2, align 8, !tbaa !5
  %8 = getelementptr inbounds i8, ptr %7, i64 16
  store ptr %6, ptr %8, align 8, !tbaa !22
  %9 = getelementptr inbounds i8, ptr %7, i64 24
  %10 = load i32, ptr %9, align 8, !tbaa !29
  %11 = sub i32 %10, %5
  store i32 %11, ptr %9, align 8, !tbaa !29
  %12 = getelementptr inbounds i8, ptr %7, i64 28
  %13 = load i32, ptr %12, align 4, !tbaa !30
  %14 = add i32 %13, %5
  store i32 %14, ptr %12, align 4, !tbaa !30
  ret void
}

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare hidden noundef i32 @_ZL11buffer_usedP7BitBuf2(ptr noundef) local_unnamed_addr #1

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare hidden noundef ptr @_ZL10buffer_ptrP7BitBuf2(ptr noundef) local_unnamed_addr #1

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 = { inlinehint 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 = !{!6, !16, i64 32}
!6 = !{!"_ZTSN3qpl2ml11compression13deflate_stateILNS0_16execution_path_tE2EEE", !7, i64 0, !16, i64 32, !16, i64 40, !17, i64 48, !18, i64 64, !19, i64 104, !20, i64 128, !21, i64 129, !16, i64 136, !15, i64 144, !16, i64 152, !9, i64 160, !9, i64 164, !9, i64 168, !15, i64 172, !16, i64 176, !16, i64 184}
!7 = !{!"_ZTSN3qpl2ml11compression18compression_streamE", !8, i64 8, !12, i64 16, !13, i64 17, !14, i64 18, !9, i64 20, !9, i64 24}
!8 = !{!"_ZTSN3qpl2ml4util20checksum_accumulatorE", !9, i64 0, !9, i64 4}
!9 = !{!"int", !10, i64 0}
!10 = !{!"omnipotent char", !11, i64 0}
!11 = !{!"Simple C++ TBAA"}
!12 = !{!"_ZTSN3qpl2ml11compression18compression_mode_tE", !10, i64 0}
!13 = !{!"_ZTSN3qpl2ml11compression17mini_block_size_tE", !10, i64 0}
!14 = !{!"_ZTSN3qpl2ml11compression10chunk_typeE", !15, i64 0, !15, i64 1}
!15 = !{!"bool", !10, i64 0}
!16 = !{!"any pointer", !10, i64 0}
!17 = !{!"_ZTSN3qpl2ml11compression17huffman_table_icfE", !16, i64 0, !9, i64 8, !9, i64 12}
!18 = !{!"_ZTS20deflate_hash_table_t", !16, i64 0, !16, i64 8, !9, i64 16, !9, i64 20, !9, i64 24, !9, i64 28, !9, i64 32}
!19 = !{!"_ZTSN3qpl2ml11compression13index_table_tE", !16, i64 0, !9, i64 8, !9, i64 12, !9, i64 16}
!20 = !{!"_ZTSN3qpl2ml11compression19compression_level_tE", !10, i64 0}
!21 = !{!"_ZTSN3qpl2ml11compression20dictionary_support_tE", !10, i64 0}
!22 = !{!23, !16, i64 16}
!23 = !{!"_ZTS12isal_zstream", !16, i64 0, !9, i64 8, !9, i64 12, !16, i64 16, !9, i64 24, !9, i64 28, !16, i64 32, !9, i64 40, !9, i64 44, !16, i64 48, !24, i64 56, !24, i64 58, !24, i64 60, !24, i64 62, !25, i64 64}
!24 = !{!"short", !10, i64 0}
!25 = !{!"_ZTS11isal_zstate", !9, i64 0, !9, i64 4, !9, i64 8, !9, i64 12, !9, i64 16, !26, i64 20, !27, i64 24, !9, i64 64, !10, i64 68, !10, i64 69, !10, i64 70, !10, i64 71, !24, i64 72, !9, i64 76, !10, i64 80, !9, i64 96, !9, i64 100, !9, i64 104, !9, i64 108, !10, i64 112, !10, i64 65936}
!26 = !{!"_ZTS17isal_zstate_state", !10, i64 0}
!27 = !{!"_ZTS7BitBuf2", !28, i64 0, !9, i64 8, !16, i64 16, !16, i64 24, !16, i64 32}
!28 = !{!"long", !10, i64 0}
!29 = !{!23, !9, i64 24}
!30 = !{!23, !9, i64 28}


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