> V8 is fixing bugs they had that caused asm.js-style JavaScript to be slower than it needs to be. I doubt they'll honour the "use asm" directive in the near fu

> V8 is fixing bugs they had that caused asm.js-style JavaScript to be slower than it needs to be. I doubt they'll honour the "use asm" directive in the near future. They don't need to use the "use asm" directive. There are many ways to optimize the asm.js style of code. The important part is that it is not something that needs standardizing. It is a subset of JavaScript, nothing more. The output of other compilers like GWT is also a particular subset of JavaScript, and for years now browsers have optimized in varying degrees for many such subsets.