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-rw-r--r--src/cpu/o3/rename.hh2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/cpu/o3/rename.hh b/src/cpu/o3/rename.hh
index ab7ae5f8b..6d3861ba6 100644
--- a/src/cpu/o3/rename.hh
+++ b/src/cpu/o3/rename.hh
@@ -298,7 +298,7 @@ class DefaultRename
* register for that arch. register, and the new physical register.
*/
struct RenameHistory {
- RenameHistory(InstSeqNum _instSeqNum, RegId _archReg,
+ RenameHistory(InstSeqNum _instSeqNum, const RegId& _archReg,
PhysRegIdPtr _newPhysReg,
PhysRegIdPtr _prevPhysReg)
: instSeqNum(_instSeqNum), archReg(_archReg),