; LLVM IR from philanc/luazen :: src/mono (monocypher-ed25519)

; 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"

; 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

declare void @crypto_wipe(ptr noundef, i64 noundef) #1

; Function Attrs: nounwind uwtable
declare dso_local void @crypto_sha512(ptr noundef, ptr noundef, i64 noundef) #2

; Function Attrs: nounwind uwtable
define dso_local void @crypto_from_ed25519_private(ptr noundef %0, ptr noundef %1) #2 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca [64 x i8], align 16
  %6 = alloca i64, align 8
  store ptr %0, ptr %3, align 8, !tbaa !5
  store ptr %1, ptr %4, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 64, ptr %5) #3
  %7 = getelementptr inbounds [64 x i8], ptr %5, i64 0, i64 0
  %8 = load ptr, ptr %4, align 8, !tbaa !5
  call void @crypto_sha512(ptr noundef %7, ptr noundef %8, i64 noundef 32)
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #3
  store i64 0, ptr %6, align 8, !tbaa !9
  br label %9

9:                                                ; preds = %20, %2
  %10 = load i64, ptr %6, align 8, !tbaa !9
  %11 = icmp ult i64 %10, 32
  br i1 %11, label %13, label %12

12:                                               ; preds = %9
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #3
  br label %23

13:                                               ; preds = %9
  %14 = load i64, ptr %6, align 8, !tbaa !9
  %15 = getelementptr inbounds [64 x i8], ptr %5, i64 0, i64 %14
  %16 = load i8, ptr %15, align 1, !tbaa !11
  %17 = load ptr, ptr %3, align 8, !tbaa !5
  %18 = load i64, ptr %6, align 8, !tbaa !9
  %19 = getelementptr inbounds i8, ptr %17, i64 %18
  store i8 %16, ptr %19, align 1, !tbaa !11
  br label %20

20:                                               ; preds = %13
  %21 = load i64, ptr %6, align 8, !tbaa !9
  %22 = add i64 %21, 1
  store i64 %22, ptr %6, align 8, !tbaa !9
  br label %9, !llvm.loop !12

23:                                               ; preds = %12
  %24 = getelementptr inbounds [64 x i8], ptr %5, i64 0, i64 0
  call void @crypto_wipe(ptr noundef %24, i64 noundef 64)
  call void @llvm.lifetime.end.p0(i64 64, ptr %5) #3
  ret void
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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" }
attributes #2 = { 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 #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, !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"

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

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

declare void @crypto_wipe(ptr noundef, i64 noundef) local_unnamed_addr #1

; Function Attrs: nounwind uwtable
declare dso_local void @crypto_sha512(ptr noundef, ptr noundef, i64 noundef) local_unnamed_addr #2

; Function Attrs: nounwind uwtable
define dso_local void @crypto_from_ed25519_private(ptr nocapture noundef writeonly %0, ptr noundef %1) local_unnamed_addr #2 {
  %3 = alloca [64 x i8], align 16
  call void @llvm.lifetime.start.p0(i64 64, ptr nonnull %3) #4
  call void @crypto_sha512(ptr noundef nonnull %3, ptr noundef %1, i64 noundef 32)
  call void @llvm.memcpy.p0.p0.i64(ptr noundef nonnull align 1 dereferenceable(32) %0, ptr noundef nonnull align 16 dereferenceable(32) %3, i64 32, i1 false), !tbaa !5
  call void @crypto_wipe(ptr noundef nonnull %3, i64 noundef 64) #4
  call void @llvm.lifetime.end.p0(i64 64, ptr nonnull %3) #4
  ret void
}

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #3

attributes #0 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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" }
attributes #2 = { 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 #3 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
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"}


; Effective O3 passes: EarlyCSEPass,GVNPass,GlobalOptPass,IPSCCPPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,LoopIdiomRecognizePass,LoopRotatePass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass