i965: Don't add base_binding_table_index if it's zero

When calculating the binding table index for non-constant sampler
array indexing it needs to add the base binding table index which is a
constant within the generated code. Often this base is zero so we can
avoid a redundant instruction in that case.

It looks like nothing in shader-db is doing non-constant sampler array
indexing so this patch doesn't make any difference but it might be
worth having anyway.

Reviewed-by: Matt Turner <[email protected]>
Reviewed-by: Chris Forbes <[email protected]>
Acked-by: Ben Widawsky <[email protected]>

0 files changed, 0 insertions, 0 deletions