xe: jit: gemm: reuse xe2 strategies on xe3

Author: dyoussif

src/gpu/intel/jit/gemm/selector/kernel_selector.cpp

@@ -207,19 +207,27 @@ const kcatalog::Entry *select(const kcatalog::Catalog &catalog, int npatterns, c
         }
     }
 
-    /* Temporarily reuse XeHPC strategies for Xe2 until more Xe2 strategies are
+    /* Temporarily reuse XeHPC/Xe2 strategies for Xe2/Xe3 until more strategies are
        in the catalog*/
     if (!bestEntry
             && (patterns[0].selector.hw == kcatalog::HWTagXe2
                     || patterns[0].selector.hw == kcatalog::HWTagXe3
                     )) {
         std::vector<MatchParams> override_patterns;
-        override_patterns.reserve(npatterns);
+	bool is_xe3 = patterns[0].selector.hw == kcatalog::HWTagXe3;
+	auto override_npatterns = is_xe3 ? 2 * npatterns : npatterns;
+	override_patterns.reserve(override_npatterns);
         for (int i = 0; i < npatterns; i++) {
             override_patterns.emplace_back(patterns[i]);
             override_patterns.back().selector.hw = kcatalog::HWTagXeHPC;
         }
-        return select(catalog, npatterns, override_patterns.data(), eparams, aux);
+	if (is_xe3) {
+	   for (int i = 0; i < npatterns; i++) {
+              override_patterns.emplace_back(patterns[i]);
+              override_patterns.back().selector.hw = kcatalog::HWTagXe2;
+          }
+	}
+	return select(catalog, override_npatterns, override_patterns.data(), eparams, aux);
     }
 
     // Late tag checking. If late tags do not match, we abandon the kernel and