Clang is now used to build Chrome for Windows

PerformanceWe conducted extensive A/B testing of performance. Performance telemetry numbers are about the same for MSVC-built and clang-built Chrome – some metrics get better, some get worse, but all of them are within 5% of each other. The official MSVC builds used LTCG and PGO, while the Clang builds currently use neither of these. This is potential for improvement that we look forward to explor

[xoinu]

Clang is the first-ever open-source C++ compiler that’s ABI-compatible with Microsoft Visual C++ (MSVC)