* [CORE] Support Clang compiling for Android
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* fix lto for jni so
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* disable assembly code
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* disable layout.cc
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* refine
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* Enable LTO on Clang
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* Disable LTO when clang is used.
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* Remove space
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* [Core] enable clang in build.sh
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* [Core] Remove the workaround for clang compiling
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