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

; 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 @ippsARCFourPack(ptr noundef %0, ptr noundef %1) #0 {
  %3 = alloca i32, align 4
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  %7 = load ptr, ptr %4, align 8, !tbaa !5
  %8 = icmp eq ptr null, %7
  br i1 %8, label %9, label %10

9:                                                ; preds = %2
  store i32 -8, ptr %3, align 4
  br label %30

10:                                               ; preds = %2
  %11 = load ptr, ptr %5, align 8, !tbaa !5
  %12 = icmp eq ptr null, %11
  br i1 %12, label %13, label %14

13:                                               ; preds = %10
  store i32 -8, ptr %3, align 4
  br label %30

14:                                               ; preds = %10
  %15 = load ptr, ptr %4, align 8, !tbaa !5
  %16 = getelementptr inbounds %struct._cpARCfour, ptr %15, i32 0, i32 0
  %17 = load i32, ptr %16, align 4, !tbaa !9
  %18 = load ptr, ptr %4, align 8, !tbaa !5
  %19 = call i64 @IPP_UINT_PTR(ptr noundef %18)
  %20 = trunc i64 %19 to i32
  %21 = xor i32 %17, %20
  %22 = icmp eq i32 %21, 542262068
  br i1 %22, label %24, label %23

23:                                               ; preds = %14
  store i32 -13, ptr %3, align 4
  br label %30

24:                                               ; preds = %14
  %25 = load ptr, ptr %4, align 8, !tbaa !5
  %26 = load ptr, ptr %5, align 8, !tbaa !5
  call void @CopyBlock(ptr noundef %25, ptr noundef %26, i32 noundef 524)
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #3
  %27 = load ptr, ptr %5, align 8, !tbaa !5
  store ptr %27, ptr %6, align 8, !tbaa !5
  %28 = load ptr, ptr %6, align 8, !tbaa !5
  %29 = getelementptr inbounds %struct._cpARCfour, ptr %28, i32 0, i32 0
  store i32 542262068, ptr %29, align 4, !tbaa !9
  store i32 0, ptr %3, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #3
  br label %30

30:                                               ; preds = %24, %23, %13, %9
  %31 = load i32, ptr %3, align 4
  ret i32 %31
}

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

; Function Attrs: inlinehint nounwind uwtable
declare hidden void @CopyBlock(ptr noundef, ptr noundef, i32 noundef) #1

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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, !11, i64 0}
!10 = !{!"_cpARCfour", !11, i64 0, !11, i64 4, !11, i64 8, !7, i64 12, !7, i64 268}
!11 = !{!"int", !7, i64 0}


; 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 -13, 1) i32 @ippsARCFourPack(ptr noundef %0, ptr noundef %1) local_unnamed_addr #0 {
  %3 = icmp eq ptr %0, null
  %4 = icmp eq ptr %1, null
  %or.cond = or i1 %3, %4
  br i1 %or.cond, label %12, label %5

5:                                                ; preds = %2
  %6 = load i32, ptr %0, align 4, !tbaa !5
  %7 = tail call i64 @IPP_UINT_PTR(ptr noundef nonnull %0)
  %8 = trunc i64 %7 to i32
  %9 = xor i32 %6, %8
  %10 = icmp eq i32 %9, 542262068
  br i1 %10, label %11, label %12

11:                                               ; preds = %5
  tail call void @CopyBlock(ptr noundef nonnull %0, ptr noundef nonnull %1, i32 noundef 524)
  store i32 542262068, ptr %1, align 4, !tbaa !5
  br label %12

12:                                               ; preds = %5, %2, %11
  %.0 = phi i32 [ 0, %11 ], [ -8, %2 ], [ -13, %5 ]
  ret i32 %.0
}

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

; Function Attrs: inlinehint nounwind uwtable
declare hidden void @CopyBlock(ptr noundef, ptr noundef, i32 noundef) local_unnamed_addr #1

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" }

!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,InferFunctionAttrsPass,InstCombinePass,ReassociatePass,SROAPass,SimplifyCFGPass,TailCallElimPass