## Compiler configs for AVX2 and SSE3 To build for AVX2, copy the `build` directory in the AVX2 folder over `//chromium/src/build`. For SSE3, do the same except from the SSE3 folder. For Polly, run `build_polly.sh` first, and then use the appropriate *BUILD.gn* for your build type from the Polly folder. For Android arm64 builds, use the Android folder, including its *android_args.gn* for your args.gn, and the `build_android.sh` from the root of the repo for building the main apk and system webview apk.