Re: Floating point on 32-bit x86: x87 precision (XPFPA) and fpmath=sse
| From: | Sjoerd Langkemper | Date: | Sun, 08 Nov 2026 14:25:16 +0000 |
| Subject: | Re: Floating point on 32-bit x86: x87 precision (XPFPA) and fpmath=sse | ||
| References: | 1 | Groups: | php.internals |
| Request: | Send a blank email to internals+get-133040@lists.php.net to get a copy of this message | ||
On Sun, Nov 8, 2026, at 14:17, marc@mabe.berlin wrote:
> Can we enable
-msse2 -mfpmath=sse by default on x86 (require
> SSE2).
Yes. As I understand it we are not really interested in supporting actual 32 bit hardware, but
running 32 bit builds on WASM or to save memory. So breaking compatibility with old CPUs seems fair.
I think Windows already requires SSE2?
Regards,
Sjoerd Langkemper