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 +1,88 @@
+# 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.
+# ruff: noqa: E741
+import platform
+import re
+
+import pytest
+
+import tvm
+from tvm.script import ir as I
+from tvm.script import tirx as T
+from tvm.testing import env
+
+llvm_version = tvm.target.codegen.llvm_version_major()
+machine = platform.machine()
+
+if machine not in ["x86_64", "AMD64", "amd64"]:
+    pytest.skip(f"Requires x86_64, but machine is {machine}", allow_module_level=True)
+
+
+@pytest.mark.skipif(not env.has_llvm(), reason="need llvm")
+@pytest.mark.skipif(llvm_version < 6, reason=f"Requires LLVM 6+, got {llvm_version}")
+def test_fp16_to_fp32():
+    def fp16_to_fp32(target, width, match=None, not_match=None):
+        elements = 64
+
+        @I.ir_module(s_tir=True)
+        class Module:
+            @T.prim_func(s_tir=True)
+            def main(
+                A: T.Buffer((elements, width), "float16"),
+                B: T.Buffer((elements, width), "float32"),
+            ):
+                T.func_attr({"tirx.noalias": True})
+                for i0 in range(elements):
+                    for i1 in T.vectorized(width):
+                        with T.sblock("B"):
+                            v_i0, v_i1 = T.axis.remap("SS", [i0, i1])
+                            T.reads(A[v_i0, v_i1])
+                            T.writes(B[v_i0, v_i1])
+                            B[v_i0, v_i1] = T.Cast("float32", A[v_i0, v_i1])
+
+        f = tvm.tirx.build(Module, target=target)
+
+        assembly = f.inspect_source("asm").splitlines()
+        if match:
+            matches = [l for l in assembly if re.search(match, l)]
+            assert matches
+        if not_match:
+            not_matches = [l for l in assembly if re.search(not_match, l)]
+            assert not not_matches
+
+    fp16_to_fp32({"kind": "llvm", "mcpu": "skylake-avx512"}, 15, match="vcvtph2ps.*mm")
+    fp16_to_fp32({"kind": "llvm", "mcpu": "skylake-avx512"}, 16, match="vcvtph2ps.*mm")
+    fp16_to_fp32({"kind": "llvm", "mcpu": "skylake-avx512"}, 17, match="vcvtph2ps.*mm")
+    fp16_to_fp32({"kind": "llvm", "mcpu": "skylake-avx512"}, 49, match="vcvtph2ps.*mm")
+    fp16_to_fp32(
+        {"kind": "llvm", "mcpu": "skylake-avx512", "mattr": ["-avx512f"]}, 49, match="vcvtph2ps.*mm"
+    )
+    fp16_to_fp32(
+        {"kind": "llvm", "mcpu": "skylake-avx512", "mattr": ["-f16c", "-avx512f"]},
+        49,
+        not_match="vcvtph2ps",
+    )
+    fp16_to_fp32({"kind": "llvm", "mcpu": "core-avx2"}, 8, match="vcvtph2ps.*mm")
+    fp16_to_fp32({"kind": "llvm", "mcpu": "core-avx2"}, 9, match="vcvtph2ps.*mm")
+    fp16_to_fp32("llvm", 9, not_match="vcvtph2ps")
+
+
+is_32bit = platform.architecture()[0] == "32bit"
+
+
+if __name__ == "__main__":
+    test_fp16_to_fp32()