Cuckoo metadata (#24498)

* Basic infra for cuckoo filter of attributes
- Implement cuckoo filter lookup logic
- Implement new ready to run section
 - Add dumper to R2RDump
 - Parse section on load into data structure
 - Implement function to query filter
- Add concept of enum of well known attributes
  - So that attribute name hashes themselves may be cached
* Wrap all even vaguely perf critical uses of attribute by name parsing with use of R2R data
* Update emmintrin.h in the PAL header to contain the needed SSE2 intrinsics for the feature
- Disable the presence table for non Corelib cases. Current performance data does not warrant the size increase in other generated binaries

2 files changed, 8 insertions, 0 deletions

diff --git a/src/md/enc/mdinternalrw.cpp b/src/md/enc/mdinternalrw.cpp
index c8f844d625..c24c1b7cae 100644
--- a/src/md/enc/mdinternalrw.cpp
+++ b/src/md/enc/mdinternalrw.cpp
@@ -1482,6 +1482,10 @@ HRESULT MDInternalRW::EnumAllInit(      // return S_FALSE if record not found
         phEnum->m_ulCount = m_pStgdb->m_MiniMd.getCountFiles();
         break;
 
+    case mdtCustomAttribute:
+        phEnum->m_ulCount = m_pStgdb->m_MiniMd.getCountCustomAttributes();
+        break;
+
     default:
         _ASSERTE(!"Bad token kind!");
         break;
diff --git a/src/md/runtime/mdinternalro.cpp b/src/md/runtime/mdinternalro.cpp
index a4f59a37b2..99a1a0d9c8 100644
--- a/src/md/runtime/mdinternalro.cpp
+++ b/src/md/runtime/mdinternalro.cpp
@@ -609,6 +609,10 @@ HRESULT MDInternalRO::EnumAllInit(      // return S_FALSE if record not found
         phEnum->m_ulCount = m_LiteWeightStgdb.m_MiniMd.getCountFiles();
         break;
 
+    case mdtCustomAttribute:
+        phEnum->m_ulCount = m_LiteWeightStgdb.m_MiniMd.getCountCustomAttributes();
+        break;
+
     default:
         _ASSERTE(!"Bad token kind!");
         break;