; LLVM IR from intel/cryptography-primitives :: sources/ippcp (pcparcfourdecrypt)

; 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._cpARCfour = type { i32, i32, i32, [256 x i8], [256 x i8] }

; Function Attrs: nounwind uwtable
define dso_local i32 @ippsARCFourDecrypt(ptr noundef %0, ptr noundef %1, i32 noundef %2, ptr noundef %3) #0 {
  %5 = alloca i32, align 4
  %6 = alloca ptr, align 8
  %7 = alloca ptr, align 8
  %8 = alloca i32, align 4
  %9 = alloca ptr, align 8
  store ptr %0, ptr %6, align 8, !tbaa !5
  store ptr %1, ptr %7, align 8, !tbaa !5
  store i32 %2, ptr %8, align 4, !tbaa !9
  store ptr %3, ptr %9, align 8, !tbaa !5
  %10 = load ptr, ptr %9, align 8, !tbaa !5
  %11 = icmp eq ptr null, %10
  br i1 %11, label %12, label %13

12:                                               ; preds = %4
  store i32 -8, ptr %5, align 4
  br label %40

13:                                               ; preds = %4
  %14 = load ptr, ptr %9, align 8, !tbaa !5
  %15 = getelementptr inbounds %struct._cpARCfour, ptr %14, i32 0, i32 0
  %16 = load i32, ptr %15, align 4, !tbaa !11
  %17 = load ptr, ptr %9, align 8, !tbaa !5
  %18 = call i64 @IPP_UINT_PTR(ptr noundef %17)
  %19 = trunc i64 %18 to i32
  %20 = xor i32 %16, %19
  %21 = icmp eq i32 %20, 542262068
  br i1 %21, label %23, label %22

22:                                               ; preds = %13
  store i32 -13, ptr %5, align 4
  br label %40

23:                                               ; preds = %13
  %24 = load ptr, ptr %6, align 8, !tbaa !5
  %25 = icmp eq ptr null, %24
  br i1 %25, label %26, label %27

26:                                               ; preds = %23
  store i32 -8, ptr %5, align 4
  br label %40

27:                                               ; preds = %23
  %28 = load ptr, ptr %7, align 8, !tbaa !5
  %29 = icmp eq ptr null, %28
  br i1 %29, label %30, label %31

30:                                               ; preds = %27
  store i32 -8, ptr %5, align 4
  br label %40

31:                                               ; preds = %27
  %32 = load i32, ptr %8, align 4, !tbaa !9
  %33 = icmp slt i32 %32, 1
  br i1 %33, label %34, label %35

34:                                               ; preds = %31
  store i32 -15, ptr %5, align 4
  br label %40

35:                                               ; preds = %31
  %36 = load ptr, ptr %6, align 8, !tbaa !5
  %37 = load ptr, ptr %7, align 8, !tbaa !5
  %38 = load i32, ptr %8, align 4, !tbaa !9
  %39 = load ptr, ptr %9, align 8, !tbaa !5
  call void @ARCFourProcessData(ptr noundef %36, ptr noundef %37, i32 noundef %38, ptr noundef %39)
  store i32 0, ptr %5, align 4
  br label %40

40:                                               ; preds = %35, %34, %30, %26, %22, %12
  %41 = load i32, ptr %5, align 4
  ret i32 %41
}

; Function Attrs: inlinehint nounwind uwtable
declare hidden i64 @IPP_UINT_PTR(ptr noundef) #1

declare void @ARCFourProcessData(ptr noundef, ptr noundef, i32 noundef, ptr noundef) #2

attributes #0 = { 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 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 = { "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, !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 0}
!12 = !{!"_cpARCfour", !10, i64 0, !10, i64 4, !10, i64 8, !7, i64 12, !7, i64 268}


; 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: nounwind uwtable
define dso_local range(i32 -15, 1) i32 @ippsARCFourDecrypt(ptr noundef %0, ptr noundef %1, i32 noundef %2, ptr noundef %3) local_unnamed_addr #0 {
  %5 = icmp eq ptr %3, null
  br i1 %5, label %18, label %6

6:                                                ; preds = %4
  %7 = load i32, ptr %3, align 4, !tbaa !5
  %8 = tail call i64 @IPP_UINT_PTR(ptr noundef nonnull %3)
  %9 = trunc i64 %8 to i32
  %10 = xor i32 %7, %9
  %11 = icmp eq i32 %10, 542262068
  br i1 %11, label %12, label %18

12:                                               ; preds = %6
  %13 = icmp eq ptr %0, null
  %14 = icmp eq ptr %1, null
  %or.cond = or i1 %13, %14
  br i1 %or.cond, label %18, label %15

15:                                               ; preds = %12
  %16 = icmp slt i32 %2, 1
  br i1 %16, label %18, label %17

17:                                               ; preds = %15
  tail call void @ARCFourProcessData(ptr noundef nonnull %0, ptr noundef nonnull %1, i32 noundef %2, ptr noundef nonnull %3) #3
  br label %18

18:                                               ; preds = %15, %12, %6, %4, %17
  %.0 = phi i32 [ 0, %17 ], [ -8, %4 ], [ -13, %6 ], [ -8, %12 ], [ -15, %15 ]
  ret i32 %.0
}

; Function Attrs: inlinehint nounwind uwtable
declare hidden i64 @IPP_UINT_PTR(ptr noundef) local_unnamed_addr #1

declare void @ARCFourProcessData(ptr noundef, ptr noundef, i32 noundef, ptr noundef) local_unnamed_addr #2

attributes #0 = { 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 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 = { "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, !7, i64 0}
!6 = !{!"_cpARCfour", !7, i64 0, !7, i64 4, !7, i64 8, !8, i64 12, !8, i64 268}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,IPSCCPPass,InstCombinePass,ReassociatePass,SROAPass,SimplifyCFGPass,TailCallElimPass