0c60dc5c broke Chromium’s macOS arm64 build (https://ci.chromium.org/p/chromium/builders/ci/mac-arm64) when it switched the GN build from llvm 7 to 10, because the GN build of llvm 10 mistakenly omitted llvm/lib/Support/RWMutex.cpp. Bug: chromium:1107585 Change-Id: I7b1aa82007e190c19a0ac50a09ce81ab23ba38d5 Reviewed-on: https://swiftshader-review.googlesource.com/c/SwiftShader/+/46748Reviewed-by: Antonio Maiorano <amaiorano@google.com> Tested-by: Antonio Maiorano <amaiorano@google.com> Kokoro-Result: kokoro <noreply+kokoro@google.com>
