Matthew Poremba has uploaded this change for review. ( https://gem5-review.googlesource.com/c/public/gem5/+/29652 )

Change subject: mem-ruby: Allow MachineID to be unordered key
......................................................................

mem-ruby: Allow MachineID to be unordered key

Define an std::hash function so that MachineID may be used as a key
type for unordered STL containers.

Change-Id: Ibc3bc78149c69683207d8967542fa6e8d545f75c
---
M src/mem/ruby/common/MachineID.hh
1 file changed, 10 insertions(+), 0 deletions(-)



diff --git a/src/mem/ruby/common/MachineID.hh b/src/mem/ruby/common/MachineID.hh
index 64082d7..3ef7b88 100644
--- a/src/mem/ruby/common/MachineID.hh
+++ b/src/mem/ruby/common/MachineID.hh
@@ -67,6 +67,16 @@
     return (obj1.type != obj2.type || obj1.num != obj2.num);
 }

+namespace std {
+    template<>
+    struct hash<MachineID> {
+        inline size_t operator()(const MachineID& id) const {
+            size_t hval = MachineType_base_level(id.type) << 16 | id.num;
+            return hval;
+        }
+    };
+}
+
 // Output operator declaration
 std::ostream& operator<<(std::ostream& out, const MachineID& obj);


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Gerrit-Project: public/gem5
Gerrit-Branch: develop
Gerrit-Change-Id: Ibc3bc78149c69683207d8967542fa6e8d545f75c
Gerrit-Change-Number: 29652
Gerrit-PatchSet: 1
Gerrit-Owner: Matthew Poremba <matthew.pore...@amd.com>
Gerrit-MessageType: newchange
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