ruby: Change PerfectCacheMemory::lookup to return pointer

CacheMemory and DirectoryMemory lookup functions return pointers to entries
stored in the memory. Bring PerfectCacheMemory in line with this convention,
and clean up SLICC code generation that was in place solely to handle
references like that which was returned by PerfectCacheMemory::lookup.

1 files changed, 6 insertions, 6 deletions

diff --git a/src/mem/ruby/structures/PerfectCacheMemory.hh b/src/mem/ruby/structures/PerfectCacheMemory.hh
index 555f24b71..413a0f471 100644
--- a/src/mem/ruby/structures/PerfectCacheMemory.hh
+++ b/src/mem/ruby/structures/PerfectCacheMemory.hh
@@ -71,8 +71,8 @@ class PerfectCacheMemory
     Address cacheProbe(const Address& newAddress) const;
 
     // looks an address up in the cache
-    ENTRY& lookup(const Address& address);
-    const ENTRY& lookup(const Address& address) const;
+    ENTRY* lookup(const Address& address);
+    const ENTRY* lookup(const Address& address) const;
 
     // Get/Set permission of cache block
     AccessPermission getPermission(const Address& address) const;
@@ -151,18 +151,18 @@ PerfectCacheMemory<ENTRY>::cacheProbe(const Address& newAddress) const
 
 // looks an address up in the cache
 template<class ENTRY>
-inline ENTRY&
+inline ENTRY*
 PerfectCacheMemory<ENTRY>::lookup(const Address& address)
 {
-    return m_map[line_address(address)].m_entry;
+    return &m_map[line_address(address)].m_entry;
 }
 
 // looks an address up in the cache
 template<class ENTRY>
-inline const ENTRY&
+inline const ENTRY*
 PerfectCacheMemory<ENTRY>::lookup(const Address& address) const
 {
-    return m_map[line_address(address)].m_entry;
+    return &m_map[line_address(address)].m_entry;
 }
 
 template<class ENTRY>