; LLVM IR from specinfo-ua/UAPKI :: library/common/pkix (cipher-helper)

; 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"

@_ZL24SHEX_GOST28147_SBOX_ID_1 = external hidden global ptr, align 8

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

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

; Function Attrs: mustprogress uwtable
define dso_local noundef i32 @_ZN7UapkiNS6Cipher9Gost281476getDKEE15Gost28147SboxIdPP12ByteArray_st(i32 noundef %0, ptr noundef %1) #1 align 2 {
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca i32, align 4
  store i32 %0, ptr %4, align 4, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #3
  store ptr null, ptr %6, align 8, !tbaa !9
  %8 = load i32, ptr %4, align 4, !tbaa !5
  switch i32 %8, label %11 [
    i32 0, label %9
    i32 1, label %9
  ]

9:                                                ; preds = %2, %2
  %10 = load ptr, ptr @_ZL24SHEX_GOST28147_SBOX_ID_1, align 8, !tbaa !9
  store ptr %10, ptr %6, align 8, !tbaa !9
  br label %12

11:                                               ; preds = %2
  store i32 2, ptr %3, align 4
  store i32 1, ptr %7, align 4
  br label %21

12:                                               ; preds = %9
  %13 = load ptr, ptr %6, align 8, !tbaa !9
  %14 = call ptr @ba_alloc_from_hex(ptr noundef %13)
  %15 = load ptr, ptr %5, align 8, !tbaa !9
  store ptr %14, ptr %15, align 8, !tbaa !9
  %16 = load ptr, ptr %5, align 8, !tbaa !9
  %17 = load ptr, ptr %16, align 8, !tbaa !9
  %18 = icmp ne ptr %17, null
  %19 = zext i1 %18 to i64
  %20 = select i1 %18, i32 0, i32 4097
  store i32 %20, ptr %3, align 4
  store i32 1, ptr %7, align 4
  br label %21

21:                                               ; preds = %12, %11
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #3
  %22 = load i32, ptr %3, align 4
  ret i32 %22
}

declare ptr @ba_alloc_from_hex(ptr noundef) #2

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #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, !6, i64 0}
!6 = !{!"_ZTS15Gost28147SboxId", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"any pointer", !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"

@_ZL24SHEX_GOST28147_SBOX_ID_1 = external hidden local_unnamed_addr global ptr, align 8

; Function Attrs: mustprogress uwtable
define dso_local noundef range(i32 0, 4098) i32 @_ZN7UapkiNS6Cipher9Gost281476getDKEE15Gost28147SboxIdPP12ByteArray_st(i32 noundef %0, ptr nocapture noundef writeonly %1) local_unnamed_addr #0 align 2 {
  %switch = icmp ult i32 %0, 2
  br i1 %switch, label %3, label %7

3:                                                ; preds = %2
  %4 = load ptr, ptr @_ZL24SHEX_GOST28147_SBOX_ID_1, align 8, !tbaa !5
  %5 = tail call ptr @ba_alloc_from_hex(ptr noundef %4)
  store ptr %5, ptr %1, align 8, !tbaa !5
  %.not = icmp eq ptr %5, null
  %6 = select i1 %.not, i32 4097, i32 0
  br label %7

7:                                                ; preds = %2, %3
  %.0 = phi i32 [ %6, %3 ], [ 2, %2 ]
  ret i32 %.0
}

declare ptr @ba_alloc_from_hex(ptr noundef) local_unnamed_addr #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 = { "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++ TBAA"}


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