[AVX] Make IntInit Unique

Use a DenseMap to make sure only one IntInit of any value exists.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136490 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/utils/TableGen/Record.cpp b/utils/TableGen/Record.cpp
index 77c0d1a491dda2b472bdee30d2f3dcce6fae5870..54edfe5ea8fabff40c79cfb46c5a083619127212 100644 (file)
--- a/utils/TableGen/Record.cpp
+++ b/utils/TableGen/Record.cpp
@@ -539,7 +539,12 @@ const Init *BitsInit::resolveReferences(Record &R, const RecordVal *RV) const {
 }
 
 const IntInit *IntInit::get(int64_t V) {
-  return new IntInit(V);
+  typedef DenseMap<int64_t, IntInit *> Pool;
+  static Pool ThePool;
+
+  IntInit *&I = ThePool[V];
+  if (!I) I = new IntInit(V);
+  return I;
 }
 
 std::string IntInit::getAsString() const {