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-rw-r--r--compiler/pragmas.nim3
1 files changed, 2 insertions, 1 deletions
diff --git a/compiler/pragmas.nim b/compiler/pragmas.nim
index 92e3d1922..6d953dee7 100644
--- a/compiler/pragmas.nim
+++ b/compiler/pragmas.nim
@@ -929,7 +929,8 @@ proc singlePragma(c: PContext, sym: PSym, n: PNode, i: var int,
       of wThreadVar:
         noVal(c, it)
         incl(sym.flags, {sfThread, sfGlobal})
-      of wDeadCodeElimUnused: discard  # deprecated, dead code elim always on
+      of wDeadCodeElimUnused:
+        warningDeprecated(c.config, n.info, "'{.deadcodeelim: on.}' is deprecated, now a noop")  # deprecated, dead code elim always on
       of wNoForward: pragmaNoForward(c, it)
       of wReorder: pragmaNoForward(c, it, flag = sfReorder)
       of wMagic: processMagic(c, it, sym)