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-rw-r--r--src/cpu/o3/rename_impl.hh15
1 files changed, 14 insertions, 1 deletions
diff --git a/src/cpu/o3/rename_impl.hh b/src/cpu/o3/rename_impl.hh
index 17aef0cf5..ac2421dc7 100644
--- a/src/cpu/o3/rename_impl.hh
+++ b/src/cpu/o3/rename_impl.hh
@@ -1,4 +1,16 @@
/*
+ * Copyright (c) 2010 ARM Limited
+ * All rights reserved.
+ *
+ * The license below extends only to copyright in the software and shall
+ * not be construed as granting a license to any other intellectual
+ * property including but not limited to intellectual property relating
+ * to a hardware implementation of the functionality of the software
+ * licensed hereunder. You may use the software subject to the license
+ * terms below provided that you ensure that this notice is replicated
+ * unmodified and in its entirety in all distributions of the software,
+ * modified or unmodified, in source code or in binary form.
+ *
* Copyright (c) 2004-2006 The Regents of The University of Michigan
* All rights reserved.
*
@@ -1044,7 +1056,8 @@ DefaultRename<Impl>::renameDestRegs(DynInstPtr &inst, ThreadID tid)
rename_result = renameMap[tid]->rename(flat_dest_reg);
//Mark Scoreboard entry as not ready
- scoreboard->unsetReg(rename_result.first);
+ if (dest_reg < TheISA::Ctrl_Base_DepTag)
+ scoreboard->unsetReg(rename_result.first);
DPRINTF(Rename, "[tid:%u]: Renaming arch reg %i to physical "
"reg %i.\n", tid, (int)flat_dest_reg,