Replace [[unlikely]] with unlikely(x) (#130816)

Danielmic · pytorchmergebot · commit 32f9a809c780 · 2024-08-07T10:38:13.000Z
Do not use `[[unlikely]]` as its c++20 language features, see https://en.cppreference.com/w/cpp/language/attributes/likely Fixes #130815 Pull Request resolved: #130816 Approved by: https://github.com/jgong5, https://github.com/jansel, https://github.com/malfet
diff --git a/torch/_inductor/codecache.py b/torch/_inductor/codecache.py
@@ -2561,25 +2561,25 @@ class CppPythonBindingsCodeCache(CppCodeCache):
         }
         template <> inline long parse_arg<long>(PyObject* args, size_t n) {
             auto result = PyLong_AsSsize_t(PyTuple_GET_ITEM(args, n));
-            if(result == -1 && PyErr_Occurred())
-                [[unlikely]] throw std::runtime_error("expected int arg");
+            if(unlikely(result == -1 && PyErr_Occurred()))
+                throw std::runtime_error("expected int arg");
             return result;
         }
         template <> inline uintptr_t parse_arg<uintptr_t>(PyObject* args, size_t n) {
             auto result = PyLong_AsVoidPtr(PyTuple_GET_ITEM(args, n));
-            if(result == reinterpret_cast<void*>(-1) && PyErr_Occurred())
-                [[unlikely]] throw std::runtime_error("expected int arg");
+            if(unlikely(result == reinterpret_cast<void*>(-1) && PyErr_Occurred()))
+                throw std::runtime_error("expected int arg");
             return reinterpret_cast<uintptr_t>(result);
         }
 
         %s
 
         static PyObject* %s_py(PyObject* self, PyObject* args) {
             try {
-                if(!PyTuple_CheckExact(args))
-                    [[unlikely]] throw std::runtime_error("tuple args required");
-                if(PyTuple_GET_SIZE(args) != %s)
-                    [[unlikely]] throw std::runtime_error("requires %s args");
+                if(unlikely(!PyTuple_CheckExact(args)))
+                    throw std::runtime_error("tuple args required");
+                if(unlikely(PyTuple_GET_SIZE(args) != %s))
+                    throw std::runtime_error("requires %s args");
                 %s
             } catch(std::exception const& e) {
                 PyErr_SetString(PyExc_RuntimeError, e.what());
