diff options
| -rw-r--r-- | src/synth/netlists-cleanup.adb | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/src/synth/netlists-cleanup.adb b/src/synth/netlists-cleanup.adb index 4d2cc40a9..f7342add9 100644 --- a/src/synth/netlists-cleanup.adb +++ b/src/synth/netlists-cleanup.adb @@ -129,9 +129,11 @@ package body Netlists.Cleanup is if Get_Id (Inst) = Id_Output then Inp := Get_Input (Inst, 0); O := Get_Driver (Inp); - Disconnect (Inp); - - Redirect_Inputs (Get_Output (Inst, 0), O); + if O /= No_Net then + -- Only when the output is driven. + Disconnect (Inp); + Redirect_Inputs (Get_Output (Inst, 0), O); + end if; Remove_Instance (Inst); end if; |