; LLVM IR from dhuertas/AES :: aes (aes_init)

; 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"

@Nb = external dso_local global i32, align 4
@Nr = external dso_local global i32, align 4
@Nk = external dso_local global i32, align 4

; Function Attrs: nounwind uwtable
define dso_local ptr @aes_init(i64 noundef %0) #0 {
  %2 = alloca i64, align 8
  store i64 %0, ptr %2, align 8, !tbaa !5
  %3 = load i64, ptr %2, align 8, !tbaa !5
  switch i64 %3, label %4 [
    i64 16, label %5
    i64 24, label %6
    i64 32, label %7
  ]

4:                                                ; preds = %1
  br label %5

5:                                                ; preds = %4, %1
  store i32 4, ptr @Nk, align 4, !tbaa !9
  store i32 10, ptr @Nr, align 4, !tbaa !9
  br label %8

6:                                                ; preds = %1
  store i32 6, ptr @Nk, align 4, !tbaa !9
  store i32 12, ptr @Nr, align 4, !tbaa !9
  br label %8

7:                                                ; preds = %1
  store i32 8, ptr @Nk, align 4, !tbaa !9
  store i32 14, ptr @Nr, align 4, !tbaa !9
  br label %8

8:                                                ; preds = %7, %6, %5
  %9 = load i32, ptr @Nb, align 4, !tbaa !9
  %10 = load i32, ptr @Nr, align 4, !tbaa !9
  %11 = add nsw i32 %10, 1
  %12 = mul nsw i32 %9, %11
  %13 = mul nsw i32 %12, 4
  %14 = sext i32 %13 to i64
  %15 = call noalias ptr @malloc(i64 noundef %14) #2
  ret ptr %15
}

; Function Attrs: nounwind allocsize(0)
declare noalias ptr @malloc(i64 noundef) #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 = { nounwind allocsize(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 allocsize(0) }

!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 = !{!"long", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"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"

@Nb = external dso_local local_unnamed_addr global i32, align 4
@Nr = external dso_local local_unnamed_addr global i32, align 4
@Nk = external dso_local local_unnamed_addr global i32, align 4

; Function Attrs: mustprogress nofree nounwind willreturn memory(readwrite, argmem: none) uwtable
define dso_local noalias noundef ptr @aes_init(i64 noundef %0) local_unnamed_addr #0 {
  switch i64 %0, label %4 [
    i64 32, label %3
    i64 24, label %2
  ]

2:                                                ; preds = %1
  br label %4

3:                                                ; preds = %1
  br label %4

4:                                                ; preds = %1, %3, %2
  %.sink1 = phi i32 [ 8, %3 ], [ 6, %2 ], [ 4, %1 ]
  %.sink = phi i32 [ 14, %3 ], [ 12, %2 ], [ 10, %1 ]
  %5 = phi i32 [ 15, %3 ], [ 13, %2 ], [ 11, %1 ]
  store i32 %.sink1, ptr @Nk, align 4, !tbaa !5
  store i32 %.sink, ptr @Nr, align 4, !tbaa !5
  %6 = load i32, ptr @Nb, align 4, !tbaa !5
  %7 = shl i32 %6, 2
  %8 = mul i32 %7, %5
  %9 = sext i32 %8 to i64
  %10 = tail call noalias ptr @malloc(i64 noundef %9) #2
  ret ptr %10
}

; Function Attrs: mustprogress nofree nounwind willreturn allockind("alloc,uninitialized") allocsize(0) memory(inaccessiblemem: readwrite)
declare noalias noundef ptr @malloc(i64 noundef) local_unnamed_addr #1

attributes #0 = { mustprogress nofree nounwind willreturn memory(readwrite, argmem: 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 allockind("alloc,uninitialized") allocsize(0) memory(inaccessiblemem: readwrite) "alloc-family"="malloc" "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 allocsize(0) }

!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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}


; Effective O3 passes: GVNPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,PostOrderFunctionAttrsPass,ReassociatePass,SCCPPass,SROAPass,SimplifyCFGPass,TailCallElimPass