glsl: handle partial swizzles in opt_dead_code_local correctly

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
This commit is contained in:
Marek Olšák 2016-11-07 22:56:21 +01:00
parent e27333a568
commit 0f6360eedb
1 changed files with 6 additions and 3 deletions

View File

@ -106,9 +106,12 @@ public:
int used = 0;
used |= 1 << ir->mask.x;
used |= 1 << ir->mask.y;
used |= 1 << ir->mask.z;
used |= 1 << ir->mask.w;
if (ir->mask.num_components > 1)
used |= 1 << ir->mask.y;
if (ir->mask.num_components > 2)
used |= 1 << ir->mask.z;
if (ir->mask.num_components > 3)
used |= 1 << ir->mask.w;
use_channels(deref->var, used);