From 9a07e180956060f4bf6f544ec03979a57f5a0181 Mon Sep 17 00:00:00 2001
From: Araq <rumpf_a@web.de>
Date: Sat, 17 Jan 2026 08:07:42 +0100
Subject: [PATCH] IC: remember which modules are from the NIF cache

---
 compiler/modulegraphs.nim | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/compiler/modulegraphs.nim b/compiler/modulegraphs.nim
index 0aedfa1b26..8f13e4d516 100644
--- a/compiler/modulegraphs.nim
+++ b/compiler/modulegraphs.nim
@@ -536,6 +536,7 @@ proc initModuleGraphFields(result: ModuleGraph) =
   result.operators = initOperators(result)
   result.emittedTypeInfo = initTable[string, FileIndex]()
   result.cachedFiles = newStringTable()
+  result.cachedMods = initIntSet()
 
 proc newModuleGraph*(cache: IdentCache; config: ConfigRef): ModuleGraph =
   result = ModuleGraph()
@@ -677,6 +678,9 @@ when not defined(nimKochBootstrap):
                            g.ifaces[fileIdx.int].interfHidden, flags)
     result.module = m
 
+    # Mark module as cached
+    g.cachedMods.incl fileIdx.int
+
     # Register hooks from NIF index with the module graph
     for x in result.logOps:
       case x.kind