Re: [webkit-dev] Proposal: Not supporting x86 w/o SSE2

2018-07-29 Thread Yusuke SUZUKI
On Mon, Jul 30, 2018 at 4:37 AM Darin Adler wrote: > Sounds good. > > There are clients of WebKit outside web browsing. A significant client > like that on Windows at Apple is iTunes. I checked < > https://www.apple.com/itunes/download/> and Windows versions of iTunes > require a processor with s

Re: [webkit-dev] Proposal: Not supporting x86 w/o SSE2

2018-07-29 Thread Darin Adler
Sounds good. There are clients of WebKit outside web browsing. A significant client like that on Windows at Apple is iTunes. I checked and Windows versions of iTunes require a processor with support for SSE2, so clarifying WebKit’s lack of support won’t

[webkit-dev] Proposal: Not supporting x86 w/o SSE2

2018-07-29 Thread Yusuke SUZUKI
Hello WebKittens, To mitigate recent side-channel attacks, we added `lfence` in x86 WebKit. But this is supported in x86 SSE2. So the ToT WebKit is not usable with very old x86 CPUs which do not have SSE2[1]. According to [2], Mozilla Firefox 49 no longer supports x86 w/o SSE2. Since Firefox 45 E