; LLVM IR from square/subzero :: core/trezor-crypto/ed25519-donna (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

declare void @expand256_modm(ptr noundef, ptr noundef, i64 noundef) #1

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

declare void @add256_modm(ptr noundef, ptr noundef, ptr noundef) #1

declare void @contract256_modm(ptr noundef, ptr noundef) #1

; 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) #2

; Function Attrs: nounwind uwtable
define dso_local void @ed25519_cosi_combine_signatures(ptr noundef %0, ptr noundef %1, ptr noundef %2, i64 noundef %3) #3 {
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca ptr, align 8
  %8 = alloca i64, align 8
  %9 = alloca [9 x i32], align 16
  %10 = alloca [9 x i32], align 16
  %11 = alloca i64, align 8
  store ptr %0, ptr %5, align 8, !tbaa !5
  store ptr %1, ptr %6, align 8, !tbaa !5
  store ptr %2, ptr %7, align 8, !tbaa !5
  store i64 %3, ptr %8, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 36, ptr %9) #4
  call void @llvm.lifetime.start.p0(i64 36, ptr %10) #4
  call void @llvm.lifetime.start.p0(i64 8, ptr %11) #4
  store i64 0, ptr %11, align 8, !tbaa !9
  %12 = getelementptr inbounds [9 x i32], ptr %9, i64 0, i64 0
  %13 = load ptr, ptr %7, align 8, !tbaa !5
  %14 = load i64, ptr %11, align 8, !tbaa !9
  %15 = add i64 %14, 1
  store i64 %15, ptr %11, align 8, !tbaa !9
  %16 = getelementptr inbounds [32 x i8], ptr %13, i64 %14
  %17 = getelementptr inbounds [32 x i8], ptr %16, i64 0, i64 0
  call void @expand256_modm(ptr noundef %12, ptr noundef %17, i64 noundef 32)
  br label %18

18:                                               ; preds = %22, %4
  %19 = load i64, ptr %11, align 8, !tbaa !9
  %20 = load i64, ptr %8, align 8, !tbaa !9
  %21 = icmp ult i64 %19, %20
  br i1 %21, label %22, label %32

22:                                               ; preds = %18
  %23 = getelementptr inbounds [9 x i32], ptr %10, i64 0, i64 0
  %24 = load ptr, ptr %7, align 8, !tbaa !5
  %25 = load i64, ptr %11, align 8, !tbaa !9
  %26 = add i64 %25, 1
  store i64 %26, ptr %11, align 8, !tbaa !9
  %27 = getelementptr inbounds [32 x i8], ptr %24, i64 %25
  %28 = getelementptr inbounds [32 x i8], ptr %27, i64 0, i64 0
  call void @expand256_modm(ptr noundef %23, ptr noundef %28, i64 noundef 32)
  %29 = getelementptr inbounds [9 x i32], ptr %9, i64 0, i64 0
  %30 = getelementptr inbounds [9 x i32], ptr %9, i64 0, i64 0
  %31 = getelementptr inbounds [9 x i32], ptr %10, i64 0, i64 0
  call void @add256_modm(ptr noundef %29, ptr noundef %30, ptr noundef %31)
  br label %18, !llvm.loop !11

32:                                               ; preds = %18
  %33 = load ptr, ptr %5, align 8, !tbaa !5
  %34 = load ptr, ptr %6, align 8, !tbaa !5
  call void @llvm.memcpy.p0.p0.i64(ptr align 1 %33, ptr align 1 %34, i64 32, i1 false)
  %35 = load ptr, ptr %5, align 8, !tbaa !5
  %36 = getelementptr inbounds i8, ptr %35, i64 32
  %37 = getelementptr inbounds [9 x i32], ptr %9, i64 0, i64 0
  call void @contract256_modm(ptr noundef %36, ptr noundef %37)
  call void @llvm.lifetime.end.p0(i64 8, ptr %11) #4
  call void @llvm.lifetime.end.p0(i64 36, ptr %10) #4
  call void @llvm.lifetime.end.p0(i64 36, ptr %9) #4
  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 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #3 = { 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 #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 = !{!"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 = distinct !{!11, !12}
!12 = !{!"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

declare void @expand256_modm(ptr noundef, ptr noundef, i64 noundef) local_unnamed_addr #1

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

declare void @add256_modm(ptr noundef, ptr noundef, ptr noundef) local_unnamed_addr #1

declare void @contract256_modm(ptr noundef, ptr noundef) local_unnamed_addr #1

; Function Attrs: mustprogress 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) #2

; Function Attrs: nounwind uwtable
define dso_local void @ed25519_cosi_combine_signatures(ptr noundef %0, ptr nocapture noundef readonly %1, ptr noundef %2, i64 noundef %3) local_unnamed_addr #3 {
  %5 = alloca [9 x i32], align 16
  %6 = alloca [9 x i32], align 16
  call void @llvm.lifetime.start.p0(i64 36, ptr nonnull %5) #4
  call void @llvm.lifetime.start.p0(i64 36, ptr nonnull %6) #4
  call void @expand256_modm(ptr noundef nonnull %5, ptr noundef %2, i64 noundef 32) #4
  %7 = icmp ugt i64 %3, 1
  br i1 %7, label %.lr.ph, label %._crit_edge

.lr.ph:                                           ; preds = %4, %.lr.ph
  %.08 = phi i64 [ %8, %.lr.ph ], [ 1, %4 ]
  %8 = add nuw i64 %.08, 1
  %9 = getelementptr inbounds [32 x i8], ptr %2, i64 %.08
  call void @expand256_modm(ptr noundef nonnull %6, ptr noundef nonnull %9, i64 noundef 32) #4
  call void @add256_modm(ptr noundef nonnull %5, ptr noundef nonnull %5, ptr noundef nonnull %6) #4
  %exitcond.not = icmp eq i64 %8, %3
  br i1 %exitcond.not, label %._crit_edge, label %.lr.ph, !llvm.loop !5

._crit_edge:                                      ; preds = %.lr.ph, %4
  call void @llvm.memcpy.p0.p0.i64(ptr noundef nonnull align 1 dereferenceable(32) %0, ptr noundef nonnull align 1 dereferenceable(32) %1, i64 32, i1 false)
  %10 = getelementptr inbounds i8, ptr %0, i64 32
  call void @contract256_modm(ptr noundef nonnull %10, ptr noundef nonnull %5) #4
  call void @llvm.lifetime.end.p0(i64 36, ptr nonnull %6) #4
  call void @llvm.lifetime.end.p0(i64 36, ptr nonnull %5) #4
  ret void
}

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 = { mustprogress nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #3 = { 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 #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 = distinct !{!5, !6}
!6 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: CorrelatedValuePropagationPass,EarlyCSEPass,GlobalOptPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass