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i965: Don't request untyped atomic writeback message if the destination is null.

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Reviewed-by: Topi Pohjolainen <topi.pohjolainen@intel.com>
Acked-by: Kenneth Graunke <kenneth@whitecape.org>
This commit is contained in:
Francisco Jerez 2015-02-26 17:41:46 +02:00
parent 0519a6259b
commit 8865fe309d
2 changed files with 3 additions and 2 deletions
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2
src/mesa/drivers/dri/i965/brw_fs_generator.cpp
View file

@ -2018,7 +2018,7 @@ fs_generator::generate_code(const cfg_t *cfg, int dispatch_width)
assert(src[1].file == BRW_IMMEDIATE_VALUE &&
src[2].file == BRW_IMMEDIATE_VALUE);
brw_untyped_atomic(p, dst, src[0], src[2], src[1].dw1.ud,
inst->mlen, true);
inst->mlen, !inst->dst.is_null());
brw_mark_surface_used(prog_data, src[2].dw1.ud);
break;

3
src/mesa/drivers/dri/i965/brw_vec4_generator.cpp
View file

@ -1472,7 +1472,8 @@ vec4_generator::generate_code(const cfg_t *cfg)
assert(src[0].file == BRW_IMMEDIATE_VALUE &&
src[1].file == BRW_IMMEDIATE_VALUE);
brw_untyped_atomic(p, dst, brw_message_reg(inst->base_mrf),
src[1], src[0].dw1.ud, inst->mlen, true);
src[1], src[0].dw1.ud, inst->mlen,
!inst->dst.is_null());
brw_mark_surface_used(&prog_data->base, src[1].dw1.ud);
break;