Internal feature

Change-Id: Ie6ea471527f0e404e0fd53ef9e275d8db19db9fb

Author: DianaChen

visa/iga/IGALibrary/Frontend/Formatter.cpp

@@ -1578,8 +1578,8 @@ void Formatter::EmitSendDescriptorInfoGED(
         switch (getScratchSpaceGRFsSize(desc)) {
         case 0: ss << "1grf"; break;
         case 1: ss << "2grfs"; break;
-        case 2: ss << "4grfs"; break;
-        case 3: ss << "8grfs"; break;
+        case 2: ss << "?grfs"; break;
+        case 3: ss << "4grfs"; break;
         }
         uint32_t off = getScratchSpaceAddressOffset(desc);
         ss << " from 0x" << std::hex << off << ")";
@@ -1728,8 +1728,8 @@ void Formatter::EmitSendDescriptorInfo(
         switch (getBitField(desc, 12, 2)) {
         case 0: ss << "1grf"; break;
         case 1: ss << "2grfs"; break;
-        case 2: ss << "4grfs"; break;
-        case 3: ss << "8grfs"; break;
+        case 2: ss << "?grfs"; break;
+        case 3: ss << "4grfs"; break;
         }
         uint32_t off = getBitField(desc, 0, 12);
         ss << " from 0x" << std::hex << off << ")";

visa/iga/IGALibrary/IR/BitSet.hpp

@@ -66,6 +66,9 @@ class BitSet {
     // len: range length in bits
     inline bool intersects(const BitSet<N,I> &rhs, size_t off, size_t len) const;
 
+    // if the given rhs is completely the same as itself
+    bool equal(const BitSet<N, I> &rhs) const;
+
     // THERE EXISTS WORD w such that ((w & mask) == eq)
     // bool testAnyEq(size_t off, size_t len, const I &mask, const I &eq) const;
     // FOR ALL ...
@@ -181,6 +184,19 @@ inline bool BitSet<N, I>::intersects(
     return false;
 }
 
+template <size_t N, typename I>
+inline bool BitSet<N, I>::equal(const BitSet<N, I> &rhs) const {
+    bool result = true;
+    for (size_t i = 0; i < N / BITS_PER_WORD; i++) {
+        result = (words[i] == rhs.words[i]) ? true : false;
+        if (!result)
+            break;
+    }
+    // padding will remain 0 since both padding are 0's
+    // 0 & 0 is 0 so no need special handling on padding
+    return result;
+}
+
 template <size_t N, typename I>
 inline bool BitSet<N,I>::andNot(const BitSet<N,I> &rhs)
 {