i965/vec4/tcs: Set conditional mod on TCS_OPCODE_SRC0_010_IS_ZERO.
Missing this causes an assertion failure in the scheduler with the next
patch.
Additionally, this gives cmod propagation enough information to optimize
code better.
total instructions in shared programs:
7112991 ->
7112852 (-0.00%)
instructions in affected programs: 25704 -> 25565 (-0.54%)
helped: 139
total cycles in shared programs:
64812898 ->
64810674 (-0.00%)
cycles in affected programs: 127224 -> 125000 (-1.75%)
helped: 139
Acked-by: Francisco Jerez <currojerez@riseup.net>
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