43 lines
1.4 KiB
Bash
Executable File
43 lines
1.4 KiB
Bash
Executable File
#!/bin/bash
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# Copyright 2021 Huawei Technologies Co., Ltd
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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# ============================================================================
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# Find a suitable LLVM version for AKG.
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#
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# This file generates a temporary cmake script file
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# and executes it by `cmake -P` (cmake script mode).
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#
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# If no suitable LLVM is found, the `find_package` function runs normally,
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# the `cmake` command exits with status `0`.
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#
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# If suitable LLVM is found, the `find_package` will encounter the error
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# "add_library command is not scriptable" in `LLVMExports.cmake` of LLVM library.
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# This error is caused because of running `cmake` in script mode.
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# Finally the `cmake` command exit with status `1`.
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echo "find_package(LLVM 12 QUIET)" > akg_llvm_tmp.cmake
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cmake -P akg_llvm_tmp.cmake > /dev/null 2>&1
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result=$?
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rm akg_llvm_tmp.cmake
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if [ ${result} -eq 0 ]; then
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echo "off"
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else
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echo "on"
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fi
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