KonstantinSeurer
/
mesa
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

i965: Avoid register coalescing away MATH workarounds on Ivybridge. 

The MATH instruction cannot handle source modifiers, even on Gen7.
So, apply this workaround for Sandybridge on Ivybridge as well.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Eric Anholt <eric@anholt.net>
This commit is contained in:
Kenneth Graunke 2011-05-11 07:54:57 -07:00
parent 6e918163df
commit 2a95568f64
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
src/mesa/drivers/dri/i965/brw_fs.cpp
View File

@ -3386,7 +3386,7 @@ fs_visitor::register_coalesce()
/* The gen6 MATH instruction can't handle source modifiers, so avoid
* coalescing those for now. We should do something more specific.
*/
if (intel->gen == 6 && scan_inst->is_math() && has_source_modifiers) {
if (intel->gen >= 6 && scan_inst->is_math() && has_source_modifiers) {
interfered = true;
break;
}