Vortex 2.0 changes:

+ Microarchitecture optimizations
+ 64-bit support
+ Xilinx FPGA support
+ LLVM-16 support
+ Refactoring and quality control fixes

sim/common/uuid_gen.h

@@ -0,0 +1,55 @@
+// Copyright © 2019-2023
+// 
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+// http://www.apache.org/licenses/LICENSE-2.0
+// 
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+
+#pragma once
+
+#include <unordered_map>
+
+namespace vortex {
+
+class UUIDGenerator {
+public:    
+    UUIDGenerator() : ids_(0) {}
+    virtual ~UUIDGenerator() {}
+
+    uint32_t get_uuid(uint64_t PC) {
+        uint32_t id;
+        uint32_t ref;
+        auto it = uuid_map_.find(PC);
+        if (it != uuid_map_.end()) {
+            uint64_t value = it->second;
+            id  = value & 0xffff;
+            ref = value >> 16;
+        } else {
+            id = ids_++;
+            ref = -1;
+        }
+        ++ref;
+        uint64_t ret = (uint64_t(ref) << 16) | id;
+        uuid_map_[PC] = ret;
+        return ret;
+    }
+
+    void reset() {
+        uuid_map_.clear();
+        ids_ = 0;
+    }
+
+private:
+
+    std::unordered_map<uint64_t, uint32_t> uuid_map_;
+    uint32_t ids_;
+};
+
+}