I’m (hopefully) getting closer to the finish line on enabling Wasm on Windows in WebKit. Recently I had a setback, when Yusuke Suzuki pointed out the critical flaw in the approach to free up r11 for use as the ws1 scratch register. I had missed that r11 was used as a scratch register not only within the offlineasm compiler, but also with MacroAssemblerX86. Using r11 was working and passed tests - but it’d also be very brittle going forward, as r11 could get clobbered by a new instruction,...