[AVX] Make BitsInit Unique
Make BitsInit a FoldingSetNode so we can unique it.
llvm-svn: 136489
diff --git a/llvm/utils/TableGen/Record.cpp b/llvm/utils/TableGen/Record.cpp
index 3e0038c..77c0d1a 100644
--- a/llvm/utils/TableGen/Record.cpp
+++ b/llvm/utils/TableGen/Record.cpp
@@ -16,6 +16,8 @@
#include "Error.h"
#include "llvm/Support/DataTypes.h"
#include "llvm/Support/Format.h"
+#include "llvm/ADT/DenseMap.h"
+#include "llvm/ADT/FoldingSet.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/ADT/STLExtras.h"
#include "llvm/ADT/StringExtras.h"
@@ -455,8 +457,36 @@
return V ? &True : &False;
}
+static void
+ProfileBitsInit(FoldingSetNodeID &ID, ArrayRef<const Init *> Range) {
+ ID.AddInteger(Range.size());
+
+ for (ArrayRef<const Init *>::iterator i = Range.begin(),
+ iend = Range.end();
+ i != iend;
+ ++i)
+ ID.AddPointer(*i);
+}
+
const BitsInit *BitsInit::get(ArrayRef<const Init *> Range) {
- return new BitsInit(Range);
+ typedef FoldingSet<BitsInit> Pool;
+ static Pool ThePool;
+
+ FoldingSetNodeID ID;
+ ProfileBitsInit(ID, Range);
+
+ void *IP = 0;
+ if (const BitsInit *I = ThePool.FindNodeOrInsertPos(ID, IP))
+ return I;
+
+ BitsInit *I = new BitsInit(Range);
+ ThePool.InsertNode(I, IP);
+
+ return I;
+}
+
+void BitsInit::Profile(FoldingSetNodeID &ID) const {
+ ProfileBitsInit(ID, Bits);
}
const Init *