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i965: Remove artificial dependency between math instructions. 

... on Gen6+. I'm not actually sure which class Gen6 fits into.

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
This commit is contained in:
Matt Turner 2014-07-06 21:31:28 -07:00
parent 099cbc1477
commit cf430408c4
1 changed files with 2 additions and 1 deletions
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3
src/mesa/drivers/dri/i965/brw_schedule_instructions.cpp
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@ -1356,6 +1356,7 @@ vec4_instruction_scheduler::issue_time(backend_instruction *inst)
void
instruction_scheduler::schedule_instructions(backend_instruction *next_block_header)
{
struct brw_context *brw = bv->brw;
time = 0;
/* Remove non-DAG heads from the list. */
@ -1424,7 +1425,7 @@ instruction_scheduler::schedule_instructions(backend_instruction *next_block_hea
* the next math instruction isn't going to make progress until the first
* is done.
*/
if (chosen->inst->is_math()) {
if (brw->gen < 6 && chosen->inst->is_math()) {
foreach_in_list(schedule_node, n, &instructions) {
if (n->inst->is_math())
n->unblocked_time = MAX2(n->unblocked_time,