chore: import upstream snapshot with attribution

2026-07-13 13:36:25 +08:00
commit 26446540fa
3151 changed files with 974126 additions and 0 deletions
@@ -0,0 +1,65 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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.
+ */
+
+#include <gtest/gtest.h>
+#include <tvm/runtime/logging.h>
+#include <tvm/s_tir/random_engine.h>
+
+TEST(RandomEngine, Randomness) {
+  int64_t rand_state = 0;
+
+  tvm::s_tir::LinearCongruentialEngine rng(&rand_state);
+  rng.Seed(0x114514);
+
+  bool covered[100];
+  memset(covered, 0, sizeof(covered));
+  for (int i = 0; i < 100000; i++) {
+    covered[rng() % 100] = true;
+  }
+  for (int i = 0; i < 100; i++) {
+    TVM_FFI_ICHECK(covered[i]);
+  }
+}
+
+TEST(RandomEngine, Reproducibility) {
+  int64_t rand_state_a = 0, rand_state_b = 0;
+  tvm::s_tir::LinearCongruentialEngine rng_a(&rand_state_a), rng_b(&rand_state_b);
+
+  rng_a.Seed(0x23456789);
+  rng_b.Seed(0x23456789);
+
+  for (int i = 0; i < 100000; i++) {
+    TVM_FFI_ICHECK_EQ(rng_a(), rng_b());
+  }
+}
+
+TEST(RandomEngine, Serialization) {
+  int64_t rand_state_a = 0, rand_state_b = 0;
+  tvm::s_tir::LinearCongruentialEngine rng_a(&rand_state_a), rng_b(&rand_state_b);
+
+  rng_a.Seed(0x56728);
+
+  rand_state_b = rand_state_a;
+  for (int i = 0; i < 100000; i++) TVM_FFI_ICHECK_EQ(rng_a(), rng_b());
+
+  for (int i = 0; i < 123456; i++) rng_a();
+
+  rand_state_b = rand_state_a;
+  for (int i = 0; i < 100000; i++) TVM_FFI_ICHECK_EQ(rng_a(), rng_b());
+}