Add Huawei Ascend C toolchain support

Support for the Bisheng compiler driver and Ascend C kernel language
(asc/aicpu source kinds) from the Huawei CANN toolkit. Includes toolchain
detection, build rules, NPU architecture flag propagation, and test projects
covering static/shared/binary and mixed asc+aicpu targets.

Author: wuzhenqing

tests/modules/language/ascendc/test.lua

@@ -0,0 +1,36 @@
+import("core.language.language")
+
+local function _write_asc_file(name, source)
+    local sourcefile = os.tmpfile(name) .. ".asc"
+    io.writefile(sourcefile, source)
+    return sourcefile
+end
+
+function test_check_main(t)
+    local instance = language.load("ascendc")
+    t:require(instance)
+
+    local check_main = instance:get("check_main")
+    t:require(check_main)
+
+    local mainfile = _write_asc_file("ascendc_check_main", [[
+#include "acl/acl.h"
+
+int32_t main(int argc, char const *argv[])
+{
+    return 0;
+}
+]])
+    t:are_equal(check_main(mainfile), true)
+
+    local commentfile = _write_asc_file("ascendc_check_main_comment", [[
+// int main() { return 0; }
+/*
+int main() { return 1; }
+*/
+__global__ __vector__ void kernel()
+{
+}
+]])
+    t:are_equal(check_main(commentfile), false)
+end

tests/projects/ascendc/libs/src/lib.asc

@@ -0,0 +1,6 @@
+#include "kernel_operator.h"
+
+__global__ __vector__ void hello_world()
+{
+    AscendC::printf("[Block (%lu/%lu)]: Hello World!!!\n", AscendC::GetBlockIdx(), AscendC::GetBlockNum());
+}

tests/projects/ascendc/libs/src/main.asc

@@ -0,0 +1,22 @@
+#include "kernel_operator.h"
+#include "acl/acl.h"
+
+extern __global__ __vector__ void hello_world();
+
+int32_t main(int argc, char const *argv[])
+{
+    aclInit(nullptr);
+    int32_t deviceId = 0;
+    aclrtSetDevice(deviceId);
+    aclrtStream stream = nullptr;
+    aclrtCreateStream(&stream);
+
+    constexpr uint32_t numBlocks = 8;
+    hello_world<<<numBlocks, nullptr, stream>>>();
+    aclrtSynchronizeStream(stream);
+
+    aclrtDestroyStream(stream);
+    aclrtResetDevice(deviceId);
+    aclFinalize();
+    return 0;
+}

tests/projects/ascendc/libs/test.lua

@@ -0,0 +1,9 @@
+function main(t)
+    if not is_host("linux") then
+        return t:skip("wrong host platform")
+    end
+    if not os.getenv("ASCEND_HOME_PATH") then
+        return t:skip("ASCEND_HOME_PATH not set")
+    end
+    t:build()
+end

tests/projects/ascendc/libs/xmake.lua

@@ -0,0 +1,20 @@
+add_rules("mode.debug", "mode.release")
+
+target("ascendc_static")
+    set_kind("static")
+    set_toolchains("ascendc")
+    add_files("src/lib.asc")
+    add_ascnpuarchs("dav-2201")
+
+target("ascendc_shared")
+    set_kind("shared")
+    set_toolchains("ascendc")
+    add_files("src/lib.asc")
+    add_ascnpuarchs("dav-2201")
+
+target("ascendc_libs_bin")
+    add_deps("ascendc_static", "ascendc_shared")
+    set_kind("binary")
+    set_toolchains("ascendc")
+    add_files("src/main.asc")
+    add_ascnpuarchs("dav-2201")

tests/projects/ascendc/mixed_binary/src/helper.aicpu

@@ -0,0 +1,7 @@
+#include "aicpu_api.h"
+
+__global__ __aicpu__ uint32_t hello_world(void *args)
+{
+    AscendC::printf("Hello World!!!\n");
+    return 0;
+}

tests/projects/ascendc/mixed_binary/src/main.asc

@@ -0,0 +1,26 @@
+#include "acl/acl.h"
+
+struct KernelArgs {
+    int mode;
+};
+
+extern __global__ __aicpu__ uint32_t hello_world(void *args);
+
+int32_t main(int argc, char const *argv[])
+{
+    aclInit(nullptr);
+    int32_t deviceId = 0;
+    aclrtSetDevice(deviceId);
+    aclrtStream stream = nullptr;
+    aclrtCreateStream(&stream);
+
+    struct KernelArgs args = {0};
+    constexpr uint32_t numBlocks = 1;
+    hello_world<<<numBlocks, nullptr, stream>>>(&args, sizeof(KernelArgs));
+    aclrtSynchronizeStream(stream);
+
+    aclrtDestroyStream(stream);
+    aclrtResetDevice(deviceId);
+    aclFinalize();
+    return 0;
+}

tests/projects/ascendc/mixed_binary/test.lua

@@ -0,0 +1,9 @@
+function main(t)
+    if not is_host("linux") then
+        return t:skip("wrong host platform")
+    end
+    if not os.getenv("ASCEND_HOME_PATH") then
+        return t:skip("ASCEND_HOME_PATH not set")
+    end
+    t:build()
+end

tests/projects/ascendc/mixed_binary/xmake.lua

@@ -0,0 +1,6 @@
+add_rules("mode.debug", "mode.release")
+
+target("ascendc_mixed")
+    set_kind("binary")
+    add_files("src/main.asc", "src/helper.aicpu")
+    add_ascnpuarchs("dav-2201")

xmake/core/tool/toolchain.lua

@@ -514,6 +514,10 @@ function _instance:_description(toolkind)
             cu         = "the cuda compiler",
             culd       = "the cuda linker",
             cuccbin    = "the cuda host c++ compiler",
+            asc        = "the ascend c compiler",
+            aicpu      = "the ascend c ai-cpu compiler",
+            ascld      = "the ascend c linker",
+            ascsh      = "the ascend c shared library linker",
             nc         = "the nim compiler",
             ncld       = "the nim linker",
             ncsh       = "the nim shared library linker",