; LLVM IR from intel/qpl :: sources/core-sw/src/compression (deflate_slow_utils)

; 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"

%struct.deflate_hash_table_t = type { ptr, ptr, i32, i32, i32, i32, i32 }

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

declare i32 @qpl_crc32_gzip_refl(i32 noundef, ptr noundef, i64 noundef) #1

declare void @own_deflate_hash_table_update(ptr noundef, i32 noundef, i32 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: nounwind uwtable
define dso_local void @px_setup_dictionary(ptr noundef %0, i32 noundef %1, ptr noundef %2) #2 {
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  %6 = alloca ptr, align 8
  %7 = alloca ptr, align 8
  %8 = alloca i32, align 4
  %9 = alloca i32, align 4
  store ptr %0, ptr %4, align 8, !tbaa !5
  store i32 %1, ptr %5, align 4, !tbaa !9
  store ptr %2, ptr %6, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #3
  %10 = load ptr, ptr %4, align 8, !tbaa !5
  store ptr %10, ptr %7, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #3
  store i32 0, ptr %8, align 4, !tbaa !9
  br label %11

11:                                               ; preds = %30, %3
  %12 = load i32, ptr %8, align 4, !tbaa !9
  %13 = load i32, ptr %5, align 4, !tbaa !9
  %14 = icmp ult i32 %12, %13
  br i1 %14, label %16, label %15

15:                                               ; preds = %11
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #3
  br label %33

16:                                               ; preds = %11
  call void @llvm.lifetime.start.p0(i64 4, ptr %9) #3
  store i32 0, ptr %9, align 4, !tbaa !9
  %17 = load ptr, ptr %7, align 8, !tbaa !5
  %18 = call i32 @qpl_crc32_gzip_refl(i32 noundef 0, ptr noundef %17, i64 noundef 4)
  %19 = load ptr, ptr %6, align 8, !tbaa !5
  %20 = getelementptr inbounds %struct.deflate_hash_table_t, ptr %19, i32 0, i32 2
  %21 = load i32, ptr %20, align 8, !tbaa !11
  %22 = and i32 %18, %21
  store i32 %22, ptr %9, align 4, !tbaa !9
  %23 = load ptr, ptr %6, align 8, !tbaa !5
  %24 = load i32, ptr %8, align 4, !tbaa !9
  %25 = load i32, ptr %5, align 4, !tbaa !9
  %26 = sub i32 %24, %25
  %27 = load i32, ptr %9, align 4, !tbaa !9
  call void @own_deflate_hash_table_update(ptr noundef %23, i32 noundef %26, i32 noundef %27)
  %28 = load ptr, ptr %7, align 8, !tbaa !5
  %29 = getelementptr inbounds i8, ptr %28, i32 1
  store ptr %29, ptr %7, align 8, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #3
  br label %30

30:                                               ; preds = %16
  %31 = load i32, ptr %8, align 4, !tbaa !9
  %32 = add i32 %31, 1
  store i32 %32, ptr %8, align 4, !tbaa !9
  br label %11, !llvm.loop !13

33:                                               ; preds = %15
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #3
  ret void
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = { 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 = { 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/C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = !{!12, !10, i64 16}
!12 = !{!"", !6, i64 0, !6, i64 8, !10, i64 16, !10, i64 20, !10, i64 24, !10, i64 28, !10, i64 32}
!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"

declare i32 @qpl_crc32_gzip_refl(i32 noundef, ptr noundef, i64 noundef) local_unnamed_addr #0

declare void @own_deflate_hash_table_update(ptr noundef, i32 noundef, i32 noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
define dso_local void @px_setup_dictionary(ptr noundef %0, i32 noundef %1, ptr noundef %2) local_unnamed_addr #1 {
  %.not = icmp eq i32 %1, 0
  br i1 %.not, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %3
  %4 = getelementptr inbounds i8, ptr %2, i64 16
  br label %5

._crit_edge:                                      ; preds = %5, %3
  ret void

5:                                                ; preds = %.lr.ph, %5
  %.013 = phi ptr [ %0, %.lr.ph ], [ %10, %5 ]
  %.01012 = phi i32 [ 0, %.lr.ph ], [ %11, %5 ]
  %6 = tail call i32 @qpl_crc32_gzip_refl(i32 noundef 0, ptr noundef %.013, i64 noundef 4) #2
  %7 = load i32, ptr %4, align 8, !tbaa !5
  %8 = and i32 %7, %6
  %9 = sub i32 %.01012, %1
  tail call void @own_deflate_hash_table_update(ptr noundef %2, i32 noundef %9, i32 noundef %8) #2
  %10 = getelementptr inbounds i8, ptr %.013, i64 1
  %11 = add nuw i32 %.01012, 1
  %exitcond.not = icmp eq i32 %11, %1
  br i1 %exitcond.not, label %._crit_edge, label %5, !llvm.loop !11
}

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 = { 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 = { 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, !10, i64 16}
!6 = !{!"", !7, i64 0, !7, i64 8, !10, i64 16, !10, i64 20, !10, i64 24, !10, i64 28, !10, i64 32}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"int", !8, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: CorrelatedValuePropagationPass,GlobalOptPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LICMPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,ReassociatePass,SROAPass,SimplifyCFGPass,TailCallElimPass