clang：错误：clang前端命令失败，退出代码为70（使用-v查看调用）

Question

我不知道是什么原因造成的。

它不会在iPhone 5和模拟器上发生。仅发生在我的原始设备iPhone 7上。

fatal error: error in backend: Error while trying to spill X0 from class GPR64: Cannot scavenge register without an emergency spill slot!
clang: error: clang frontend command failed with exit code 70 (use -v to see invocation)
Apple LLVM version 9.0.0 (clang-900.0.34.1)
Target: aarch64-apple-darwin16.7.0
Thread model: posix
InstalledDir: /Applications/Xcode-beta.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin
clang: note: diagnostic msg: PLEASE submit a bug report to http://developer.apple.com/bugreporter/ and include the crash backtrace, preprocessed source, and associated run script.
clang: note: diagnostic msg: 
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PLEASE ATTACH THE FOLLOWING FILES TO THE BUG REPORT:
Preprocessed source(s) and associated run script(s) are located at:
clang: note: diagnostic msg: /var/folders/xg/tgwkzqt15xd9jprnv9f0gn4c0000gn/T/CityArray-6e6c1e.m
clang: note: diagnostic msg: /var/folders/xg/tgwkzqt15xd9jprnv9f0gn4c0000gn/T/CityArray-6e6c1e.cache
clang: note: diagnostic msg: /var/folders/xg/tgwkzqt15xd9jprnv9f0gn4c0000gn/T/CityArray-6e6c1e.sh
clang: note: diagnostic msg: Crash backtrace is located in
clang: note: diagnostic msg: /Users/junhyun/Library/Logs/DiagnosticReports/clang_<YYYY-MM-DD-HHMMSS>_<hostname>.crash
clang: note: diagnostic msg: (choose the .crash file that corresponds to your crash)
clang: note: diagnostic msg: 

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Answer 1

当我使用xcode归档我的应用程序时（在sim上运行且物理设备正常工作时）出现此错误，但仍将我的物理设备选作方案。解决方案对我有用：清理构建文件夹，然后选择“ Generic IOS Device”作为方案。

Answer 2

当我将大量数组硬编码到 .h 文件中时，出现此错误。在模拟器上运行良好，在设备上抛出此错误。

将数组更改为空并且编译得很好。