On Mon, Sep 29, 2008 at 6:14 PM, Jose Fonseca <[EMAIL PROTECTED]> wrote: > Module: Mesa > Branch: gallium-0.2 > Commit: 5dc8e67078be8b8c42a809311debd275ac7d64a7 > URL: > http://cgit.freedesktop.org/mesa/mesa/commit/?id=5dc8e67078be8b8c42a809311debd275ac7d64a7 > > Author: José Fonseca <[EMAIL PROTECTED]> > Date: Tue Sep 30 01:12:52 2008 +0900 > > tgsi: SSE2 optimized exp2, log2 and pow implementations. > > Special care must be taken when calling compiler generated SSE2 functions > from the runtime generated SSE2: saving the xmm registers, and notify gcc > the stack is not 16byte aligned. > > It would be more efficient to keep the stack pointer 16byte aligned, but > too hairy, and not consistent in all x86 architectures. > > This has been tested in linux x86 and windows x86 userspace. Not tested on > x86-64 because it is broken for other reasons (even without this change). >
This was discussed before, but I didn't get around to fix it. Basically the wrong calling convention is used under linux, and this clobbers the esi register: http://www.mail-archive.com/[EMAIL PROTECTED]/msg34392.html Stephane ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ Mesa3d-dev mailing list Mesa3d-dev@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mesa3d-dev
