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i965/eu: Set execution size explicitly for memory fence send message.

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We don't want to emit a 32-wide send message in 32-wide programs.  The
memory fence message should have the same effect regardless of the
execution size (as long as it's valid) so just set it to one.

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
This commit is contained in:
Francisco Jerez 2016-04-25 19:20:12 -07:00
parent 5c887326c5
commit fc7107de1d
1 changed files with 7 additions and 4 deletions
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11
src/mesa/drivers/dri/i965/brw_eu_emit.c
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@ -3261,6 +3261,11 @@ brw_memory_fence(struct brw_codegen *p,
const bool commit_enable = devinfo->gen == 7 && !devinfo->is_haswell;
struct brw_inst *insn;
brw_push_insn_state(p);
brw_set_default_mask_control(p, BRW_MASK_DISABLE);
brw_set_default_exec_size(p, BRW_EXECUTE_1);
dst = vec1(dst);
/* Set dst as destination for dependency tracking, the MEMORY_FENCE
* message doesn't write anything back.
*/
@ -3287,12 +3292,10 @@ brw_memory_fence(struct brw_codegen *p,
* cache messages will be properly ordered with respect to past data and
* render cache messages.
*/
brw_push_insn_state(p);
brw_set_default_compression_control(p, BRW_COMPRESSION_NONE);
brw_set_default_mask_control(p, BRW_MASK_DISABLE);
brw_MOV(p, dst, offset(dst, 1));
brw_pop_insn_state(p);
}
brw_pop_insn_state(p);
}
void