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i965/fs: Lower 32x32 bit multiplication on BXT.

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AFAIK BXT has the same annoying alignment limitation as CHV on the
source register regions of 32x32 bit MULs, give it the same treatment.

Reviewed-by: Matt Turner <mattst88@gmail.com>
This commit is contained in:
Francisco Jerez 2015-08-05 16:43:37 +03:00
parent 8f5d0988ea
commit f5b37fb1ac
1 changed files with 2 additions and 2 deletions
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4
src/mesa/drivers/dri/i965/brw_fs.cpp
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@ -3130,9 +3130,9 @@ fs_visitor::lower_integer_multiplication()
bool progress = false;
/* Gen8's MUL instruction can do a 32-bit x 32-bit -> 32-bit operation
* directly, but Cherryview cannot.
* directly, but CHV/BXT cannot.
*/
if (devinfo->gen >= 8 && !devinfo->is_cherryview)
if (devinfo->gen >= 8 && !devinfo->is_cherryview && !devinfo->is_broxton)
return false;
foreach_block_and_inst_safe(block, fs_inst, inst, cfg) {