From 3fad64f3328778032439a87ec2108cdeea370552 Mon Sep 17 00:00:00 2001
From: tharris <unknown>
Date: Tue, 14 Jun 2005 10:02:11 +0000
Subject: [PATCH] [project @ 2005-06-14 10:02:11 by tharris] Assert on nested
 atomic blocks

---
 ghc/rts/PrimOps.cmm |    1 +
 1 file changed, 1 insertion(+)

diff --git a/ghc/rts/PrimOps.cmm b/ghc/rts/PrimOps.cmm
index 7b1c8aa..84b34d0 100644
--- a/ghc/rts/PrimOps.cmm
+++ b/ghc/rts/PrimOps.cmm
@@ -1181,6 +1181,7 @@ atomicallyzh_fast
 
   /* Start the memory transcation */
   old_trec = StgTSO_trec(CurrentTSO);
+  ASSERT(old_trec == NO_TREC);
   "ptr" new_trec = foreign "C" stmStartTransaction(BaseReg "ptr", old_trec "ptr");
   StgTSO_trec(CurrentTSO) = new_trec;
 
-- 
1.7.10.4