feat(ascendc): add Huawei Ascend C toolchain support

Add toolchain, language, rules, and compiler modules for the
bisheng compiler driver from CANN (Compute Architecture for
Neural Networks) toolkit. Supports .asc (Ascend C kernel) and
.aicpu (AI-CPU operator) source kinds with binary/static/shared
target types.

- Toolchain: SDK auto-detection via ASCEND_HOME_PATH env or --sdk
- Compiler: bisheng module inherits from clang, adds add_sourceflags
  for explicit sourcekind overrides
- Rules: ascendc.env (default C++17), npuarchs (--npu-arch), build
- Language: check_main detection, add_ascnpuarchs API
- Tests: unit tests for check_main, project tests for libs/mixed

Fixes #7506

1 files changed, 53 insertions, 0 deletions

diff --git a/xmake/rules/ascendc/xmake.lua b/xmake/rules/ascendc/xmake.lua
new file mode 100644
index 000000000..312230b07
--- /dev/null
+++ b/xmake/rules/ascendc/xmake.lua
@@ -0,0 +1,53 @@
+--!A cross-platform build utility based on Lua
+--
+-- 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.
+--
+-- Copyright (C) 2015-present, Xmake Open Source Community.
+--
+-- @author      wuzhenqing
+-- @file        xmake.lua
+--
+
+-- define rule: ascendc.env
+rule("ascendc.env")
+    after_load(function (target)
+        -- set default C++ standard (user can override via set_languages)
+        target:add("languages", "c++17")
+    end)
+
+-- define rule: ascendc.npuarchs
+rule("ascendc.npuarchs")
+    on_config(function (target)
+        for _, arch in ipairs(table.unique(table.wrap(target:get("ascnpuarchs")))) do
+            target:add("ascflags", "--npu-arch=" .. arch)
+            target:add("shflags", "--npu-arch=" .. arch)
+            target:add("ldflags", "--npu-arch=" .. arch)
+        end
+    end)
+
+-- define rule: ascendc.build.asc
+rule("ascendc.build.asc")
+    set_sourcekinds("asc")
+    add_deps("ascendc.npuarchs")
+    on_build_files("private.action.build.object", {jobgraph = true, batch = true})
+
+-- define rule: ascendc.build.aicpu
+rule("ascendc.build.aicpu")
+    set_sourcekinds("aicpu")
+    add_deps("ascendc.npuarchs")
+    on_build_files("private.action.build.object", {jobgraph = true, batch = true})
+
+-- define rule: ascendc
+rule("ascendc")
+    add_deps("ascendc.env", "ascendc.build.asc", "ascendc.build.aicpu")
+    add_deps("utils.inherit.links")