; LLVM IR from LoupVaillant/Monocypher-Utils :: src (monocypher)

; 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.crypto_lock_ctx = type { %struct.crypto_chacha_ctx, %struct.crypto_poly1305_ctx, i64, i64, i32 }
%struct.crypto_chacha_ctx = type { [16 x i32], [16 x i32], i64 }
%struct.crypto_poly1305_ctx = type { [4 x i32], [5 x i32], [5 x i32], [4 x i32], i64 }

; Function Attrs: nounwind uwtable
declare dso_local void @crypto_wipe(ptr noundef, i64 noundef) #0

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

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

; Function Attrs: nounwind uwtable
declare dso_local void @crypto_chacha20_x_init(ptr noundef, ptr noundef, ptr noundef) #0

; Function Attrs: nounwind uwtable
declare dso_local void @crypto_chacha20_stream(ptr noundef, ptr noundef, i64 noundef) #0

; Function Attrs: nounwind uwtable
declare dso_local void @crypto_poly1305_init(ptr noundef, ptr noundef) #0

; Function Attrs: nounwind uwtable
define dso_local void @crypto_lock_init(ptr noundef %0, ptr noundef %1, ptr noundef %2) #0 {
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca [64 x i8], align 16
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  store ptr %2, ptr %6, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 64, ptr %7) #2
  %8 = load ptr, ptr %4, align 8, !tbaa !5
  %9 = getelementptr inbounds %struct.crypto_lock_ctx, ptr %8, i32 0, i32 4
  store i32 1, ptr %9, align 8, !tbaa !9
  %10 = load ptr, ptr %4, align 8, !tbaa !5
  %11 = getelementptr inbounds %struct.crypto_lock_ctx, ptr %10, i32 0, i32 2
  store i64 0, ptr %11, align 8, !tbaa !15
  %12 = load ptr, ptr %4, align 8, !tbaa !5
  %13 = getelementptr inbounds %struct.crypto_lock_ctx, ptr %12, i32 0, i32 3
  store i64 0, ptr %13, align 8, !tbaa !16
  %14 = load ptr, ptr %4, align 8, !tbaa !5
  %15 = getelementptr inbounds %struct.crypto_lock_ctx, ptr %14, i32 0, i32 0
  %16 = load ptr, ptr %5, align 8, !tbaa !5
  %17 = load ptr, ptr %6, align 8, !tbaa !5
  call void @crypto_chacha20_x_init(ptr noundef %15, ptr noundef %16, ptr noundef %17)
  %18 = load ptr, ptr %4, align 8, !tbaa !5
  %19 = getelementptr inbounds %struct.crypto_lock_ctx, ptr %18, i32 0, i32 0
  %20 = getelementptr inbounds [64 x i8], ptr %7, i64 0, i64 0
  call void @crypto_chacha20_stream(ptr noundef %19, ptr noundef %20, i64 noundef 64)
  %21 = load ptr, ptr %4, align 8, !tbaa !5
  %22 = getelementptr inbounds %struct.crypto_lock_ctx, ptr %21, i32 0, i32 1
  %23 = getelementptr inbounds [64 x i8], ptr %7, i64 0, i64 0
  call void @crypto_poly1305_init(ptr noundef %22, ptr noundef %23)
  %24 = getelementptr inbounds [64 x i8], ptr %7, i64 0, i64 0
  call void @crypto_wipe(ptr noundef %24, i64 noundef 64)
  call void @llvm.lifetime.end.p0(i64 64, ptr %7) #2
  ret void
}

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 }

!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, !14, i64 232}
!10 = !{!"", !11, i64 0, !13, i64 136, !12, i64 216, !12, i64 224, !14, i64 232}
!11 = !{!"", !7, i64 0, !7, i64 64, !12, i64 128}
!12 = !{!"long", !7, i64 0}
!13 = !{!"", !7, i64 0, !7, i64 16, !7, i64 36, !7, i64 56, !12, i64 72}
!14 = !{!"int", !7, i64 0}
!15 = !{!10, !12, i64 216}
!16 = !{!10, !12, i64 224}


; 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
declare dso_local void @crypto_wipe(ptr noundef, i64 noundef) local_unnamed_addr #0

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

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

; Function Attrs: nounwind uwtable
declare dso_local void @crypto_chacha20_x_init(ptr noundef, ptr noundef, ptr noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
declare dso_local void @crypto_chacha20_stream(ptr noundef, ptr noundef, i64 noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
declare dso_local void @crypto_poly1305_init(ptr noundef, ptr noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
define dso_local void @crypto_lock_init(ptr noundef %0, ptr noundef %1, ptr noundef %2) local_unnamed_addr #0 {
  %4 = alloca [64 x i8], align 16
  call void @llvm.lifetime.start.p0(i64 64, ptr nonnull %4) #3
  %5 = getelementptr inbounds i8, ptr %0, i64 232
  store i32 1, ptr %5, align 8, !tbaa !5
  %6 = getelementptr inbounds i8, ptr %0, i64 216
  tail call void @llvm.memset.p0.i64(ptr noundef nonnull align 8 dereferenceable(16) %6, i8 0, i64 16, i1 false)
  tail call void @crypto_chacha20_x_init(ptr noundef %0, ptr noundef %1, ptr noundef %2)
  call void @crypto_chacha20_stream(ptr noundef %0, ptr noundef nonnull %4, i64 noundef 64)
  %7 = getelementptr inbounds i8, ptr %0, i64 136
  call void @crypto_poly1305_init(ptr noundef nonnull %7, ptr noundef nonnull %4)
  call void @crypto_wipe(ptr noundef nonnull %4, i64 noundef 64)
  call void @llvm.lifetime.end.p0(i64 64, ptr nonnull %4) #3
  ret void
}

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #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 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { nocallback nofree nounwind willreturn memory(argmem: write) }
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, !12, i64 232}
!6 = !{!"", !7, i64 0, !11, i64 136, !10, i64 216, !10, i64 224, !12, i64 232}
!7 = !{!"", !8, i64 0, !8, i64 64, !10, i64 128}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"long", !8, i64 0}
!11 = !{!"", !8, i64 0, !8, i64 16, !8, i64 36, !8, i64 56, !10, i64 72}
!12 = !{!"int", !8, i64 0}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,MemCpyOptPass,SROAPass,TailCallElimPass