1 files changed, 74 insertions, 0 deletions
diff --git a/src/cpu/static_inst.cc b/src/cpu/static_inst.cc
new file mode 100644
index 000000000..c307dc6fc
--- /dev/null
+++ b/src/cpu/static_inst.cc
@@ -0,0 +1,74 @@
+/*
+ * Copyright (c) 2003-2005 The Regents of The University of Michigan
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met: redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer;
+ * redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution;
+ * neither the name of the copyright holders nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <iostream>
+#include "cpu/static_inst.hh"
+#include "sim/root.hh"
+
+StaticInstPtr StaticInst::nullStaticInstPtr;
+
+// Define the decode cache hash map.
+StaticInst::DecodeCache StaticInst::decodeCache;
+
+void
+StaticInst::dumpDecodeCacheStats()
+{
+    using namespace std;
+
+    cerr << "Decode hash table stats @ " << curTick << ":" << endl;
+    cerr << "\tnum entries = " << decodeCache.size() << endl;
+    cerr << "\tnum buckets = " << decodeCache.bucket_count() << endl;
+    vector<int> hist(100, 0);
+    int max_hist = 0;
+    for (int i = 0; i < decodeCache.bucket_count(); ++i) {
+        int count = decodeCache.elems_in_bucket(i);
+        if (count > max_hist)
+            max_hist = count;
+        hist[count]++;
+    }
+    for (int i = 0; i <= max_hist; ++i) {
+        cerr << "\tbuckets of size " << i << " = " << hist[i] << endl;
+    }
+}
+
+bool
+StaticInst::hasBranchTarget(Addr pc, ExecContext *xc, Addr &tgt) const
+{
+    if (isDirectCtrl()) {
+        tgt = branchTarget(pc);
+        return true;
+    }
+
+    if (isIndirectCtrl()) {
+        tgt = branchTarget(xc);
+        return true;
+    }
+
+    return false;
+}
+