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, 47 insertions, 0 deletions

diff --git a/xmake/modules/detect/tools/find_bisheng.lua b/xmake/modules/detect/tools/find_bisheng.lua
new file mode 100644
index 000000000..f5832b09e
--- /dev/null
+++ b/xmake/modules/detect/tools/find_bisheng.lua
@@ -0,0 +1,47 @@
+--!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        find_bisheng.lua
+--
+
+-- imports
+import("lib.detect.find_program")
+import("lib.detect.find_programver")
+
+-- find bisheng
+--
+-- @param opt   the argument options, e.g. {version = true}
+--
+-- @return      program, version
+--
+-- @code
+--
+-- local bisheng = find_bisheng()
+-- local bisheng, version = find_bisheng({version = true})
+--
+-- @endcode
+--
+function main(opt)
+    opt = opt or {}
+    opt.norunfile = true
+    local program = find_program(opt.program or "bisheng", opt)
+    local version = nil
+    if program and opt and opt.version then
+        version = find_programver(program, opt)
+    end
+    return program, version
+end