; LLVM IR from number571/c-crypto-lib :: crypto/cipher (adfgvx)

; 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"

@__sqrt_length_alph2 = external hidden global i8, align 1
@__alph2 = external hidden global [13 x i8], align 1
@__alph1 = external hidden global [127 x i8], align 16

; Function Attrs: nounwind uwtable
define dso_local signext i8 @set_alpha_adfgvx(ptr noundef %0, ptr noundef %1) #0 {
  %3 = alloca i8, align 1
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca i64, align 8
  %7 = alloca i64, align 8
  %8 = alloca i32, align 4
  %9 = alloca i8, align 1
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #4
  %10 = load ptr, ptr %4, align 8, !tbaa !5
  %11 = call i64 @strlen(ptr noundef %10) #5
  store i64 %11, ptr %6, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #4
  %12 = load ptr, ptr %5, align 8, !tbaa !5
  %13 = call i64 @strlen(ptr noundef %12) #5
  store i64 %13, ptr %7, align 8, !tbaa !9
  %14 = load i64, ptr %7, align 8, !tbaa !9
  %15 = icmp ugt i64 %14, 13
  br i1 %15, label %16, label %17

16:                                               ; preds = %2
  store i8 1, ptr %3, align 1
  store i32 1, ptr %8, align 4
  br label %53

17:                                               ; preds = %2
  %18 = load i64, ptr %7, align 8, !tbaa !9
  %19 = load i8, ptr @__sqrt_length_alph2, align 1, !tbaa !11
  %20 = zext i8 %19 to i64
  %21 = icmp ult i64 %18, %20
  br i1 %21, label %22, label %23

22:                                               ; preds = %17
  store i8 2, ptr %3, align 1
  store i32 1, ptr %8, align 4
  br label %53

23:                                               ; preds = %17
  %24 = load ptr, ptr %5, align 8, !tbaa !5
  %25 = call ptr @strcpy(ptr noundef @__alph2, ptr noundef %24) #4
  %26 = load i64, ptr %6, align 8, !tbaa !9
  %27 = icmp uge i64 %26, 127
  br i1 %27, label %28, label %29

28:                                               ; preds = %23
  store i8 3, ptr %3, align 1
  store i32 1, ptr %8, align 4
  br label %53

29:                                               ; preds = %23
  call void @llvm.lifetime.start.p0(i64 1, ptr %9) #4
  store i8 1, ptr %9, align 1, !tbaa !11
  br label %30

30:                                               ; preds = %39, %29
  %31 = load i8, ptr %9, align 1, !tbaa !11
  %32 = zext i8 %31 to i32
  %33 = load i8, ptr %9, align 1, !tbaa !11
  %34 = zext i8 %33 to i32
  %35 = mul nsw i32 %32, %34
  %36 = sext i32 %35 to i64
  %37 = load i64, ptr %6, align 8, !tbaa !9
  %38 = icmp ult i64 %36, %37
  br i1 %38, label %39, label %42

39:                                               ; preds = %30
  %40 = load i8, ptr %9, align 1, !tbaa !11
  %41 = add i8 %40, 1
  store i8 %41, ptr %9, align 1, !tbaa !11
  br label %30, !llvm.loop !12

42:                                               ; preds = %30
  %43 = load i8, ptr %9, align 1, !tbaa !11
  %44 = zext i8 %43 to i64
  %45 = load i64, ptr %7, align 8, !tbaa !9
  %46 = icmp ugt i64 %44, %45
  br i1 %46, label %47, label %48

47:                                               ; preds = %42
  store i8 4, ptr %3, align 1
  store i32 1, ptr %8, align 4
  br label %52

48:                                               ; preds = %42
  %49 = load i8, ptr %9, align 1, !tbaa !11
  store i8 %49, ptr @__sqrt_length_alph2, align 1, !tbaa !11
  %50 = load ptr, ptr %4, align 8, !tbaa !5
  %51 = call ptr @strcpy(ptr noundef @__alph1, ptr noundef %50) #4
  store i8 0, ptr %3, align 1
  store i32 1, ptr %8, align 4
  br label %52

52:                                               ; preds = %48, %47
  call void @llvm.lifetime.end.p0(i64 1, ptr %9) #4
  br label %53

53:                                               ; preds = %52, %28, %22, %16
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #4
  %54 = load i8, ptr %3, align 1
  ret i8 %54
}

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: nounwind willreturn memory(read)
declare i64 @strlen(ptr noundef) #2

; Function Attrs: nounwind
declare ptr @strcpy(ptr noundef, ptr noundef) #3

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { nounwind willreturn memory(read) "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 "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 = { nounwind willreturn memory(read) }

!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 = !{!"long", !7, i64 0}
!11 = !{!7, !7, i64 0}
!12 = distinct !{!12, !13}
!13 = !{!"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"

@__sqrt_length_alph2 = external hidden local_unnamed_addr global i8, align 1
@__alph2 = external hidden global [13 x i8], align 1
@__alph1 = external hidden global [127 x i8], align 16

; Function Attrs: nofree nounwind memory(readwrite, inaccessiblemem: none) uwtable
define dso_local signext range(i8 0, 5) i8 @set_alpha_adfgvx(ptr nocapture noundef readonly %0, ptr nocapture noundef readonly %1) local_unnamed_addr #0 {
  %3 = tail call i64 @strlen(ptr noundef nonnull dereferenceable(1) %0) #3
  %4 = tail call i64 @strlen(ptr noundef nonnull dereferenceable(1) %1) #3
  %5 = icmp ugt i64 %4, 13
  br i1 %5, label %23, label %6

6:                                                ; preds = %2
  %7 = load i8, ptr @__sqrt_length_alph2, align 1, !tbaa !5
  %8 = zext i8 %7 to i64
  %9 = icmp ult i64 %4, %8
  br i1 %9, label %23, label %10

10:                                               ; preds = %6
  %11 = tail call ptr @strcpy(ptr noundef nonnull dereferenceable(1) @__alph2, ptr noundef nonnull dereferenceable(1) %1) #4
  %12 = icmp ugt i64 %3, 126
  br i1 %12, label %23, label %.preheader.preheader

.preheader.preheader:                             ; preds = %10
  %13 = trunc nuw i64 %3 to i32
  br label %.preheader

.preheader:                                       ; preds = %.preheader.preheader, %.preheader
  %.0 = phi i8 [ %17, %.preheader ], [ 1, %.preheader.preheader ]
  %14 = zext i8 %.0 to i32
  %15 = mul nuw nsw i32 %14, %14
  %16 = icmp ult i32 %15, %13
  %17 = add i8 %.0, 1
  br i1 %16, label %.preheader, label %18, !llvm.loop !8

18:                                               ; preds = %.preheader
  %19 = zext i8 %.0 to i64
  %20 = icmp ult i64 %4, %19
  br i1 %20, label %23, label %21

21:                                               ; preds = %18
  store i8 %.0, ptr @__sqrt_length_alph2, align 1, !tbaa !5
  %22 = tail call ptr @strcpy(ptr noundef nonnull dereferenceable(1) @__alph1, ptr noundef nonnull dereferenceable(1) %0) #4
  br label %23

23:                                               ; preds = %21, %18, %10, %6, %2
  %.1 = phi i8 [ 1, %2 ], [ 2, %6 ], [ 3, %10 ], [ 0, %21 ], [ 4, %18 ]
  ret i8 %.1
}

; Function Attrs: mustprogress nofree nounwind willreturn memory(argmem: read)
declare i64 @strlen(ptr nocapture noundef) local_unnamed_addr #1

; Function Attrs: mustprogress nofree nounwind willreturn memory(argmem: readwrite)
declare ptr @strcpy(ptr noalias noundef returned writeonly, ptr noalias nocapture noundef readonly) local_unnamed_addr #2

attributes #0 = { nofree nounwind memory(readwrite, inaccessiblemem: none) 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 = { mustprogress nofree nounwind willreturn memory(argmem: read) "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 nofree nounwind willreturn memory(argmem: readwrite) "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 willreturn memory(read) }
attributes #4 = { 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 = !{!"omnipotent char", !7, i64 0}
!7 = !{!"Simple C/C++ TBAA"}
!8 = distinct !{!8, !9}
!9 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: EarlyCSEPass,GVNPass,GlobalOptPass,IPSCCPPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,LCSSAPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass