KonstantinSeurer/mesa

Commit Graph

Author	SHA1	Message	Date
Eric Anholt	d4ae5ca823	vc4: Fix live intervals analysis for screening defs in if statements. If a conditional assignment is only conditioned on the exec mask, that's still screening off the value in the executed channels (and, since we're not storing to the unexcuted channels, we don't care what's in there). Fixes a bunch of extra register pressure on Processing's Ribbons demo, which is failing to allocate.	2016-10-06 18:09:24 -07:00
Eric Anholt	89918c1e74	vc4: Implement live intervals using a CFG. Right now our CFG is always a trivial single basic block, but that will change when enable loops.	2016-07-12 17:41:59 -07:00

Author

SHA1

Message

Date

Eric Anholt

d4ae5ca823

vc4: Fix live intervals analysis for screening defs in if statements.

If a conditional assignment is only conditioned on the exec mask, that's
still screening off the value in the executed channels (and, since we're
not storing to the unexcuted channels, we don't care what's in there).

Fixes a bunch of extra register pressure on Processing's Ribbons demo,
which is failing to allocate.

2016-10-06 18:09:24 -07:00

Eric Anholt

89918c1e74

vc4: Implement live intervals using a CFG.

Right now our CFG is always a trivial single basic block, but that will
change when enable loops.

2016-07-12 17:41:59 -07:00

2 Commits