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brw: Allow emit instruction with only number of sources

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The emit will allocate the necessary number of sources but will
let the caller fill them in.

Change a couple of places to take advantage of that.

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/36730>
This commit is contained in:
Caio Oliveira 2025-08-09 16:30:41 -07:00 • committed by Marge Bot
parent 3ef86a8d00
commit 8f16cac492
3 changed files with 13 additions and 8 deletions
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6
src/intel/compiler/brw_builder.h
View file

@ -292,6 +292,12 @@ public:
return emit(opcode, brw_reg(), NULL, 0);
}
brw_inst *
emit(enum opcode opcode, unsigned num_srcs) const
{
return emit(brw_new_inst(*shader, opcode, dispatch_width(), brw_reg(), num_srcs));
}
/**
* Create and insert a nullary instruction into the program.
*/

3
src/intel/compiler/brw_compile_fs.cpp
View file

@ -648,8 +648,7 @@ brw_emit_repclear_shader(brw_shader &s)
if (i > 0)
bld.uniform().MOV(component(header, 2), brw_imm_ud(i));
write = bld.emit(SHADER_OPCODE_SEND);
write->resize_sources(SEND_NUM_SRCS);
write = bld.emit(SHADER_OPCODE_SEND, SEND_NUM_SRCS);
/* We can use a headerless message for the first render target */
write->header_size = i == 0 ? 0 : 2;

12
src/intel/compiler/brw_workaround.cpp
View file

@ -106,13 +106,13 @@ brw_workaround_memory_fence_before_eot(brw_shader &s)
const brw_builder ubld = brw_builder(inst).uniform();
brw_reg dst = ubld.vgrf(BRW_TYPE_UD);
brw_inst *dummy_fence = ubld.emit(SHADER_OPCODE_SEND, dst);
brw_inst *dummy_fence = ubld.emit(SHADER_OPCODE_SEND, SEND_NUM_SRCS);
dummy_fence->resize_sources(4);
dummy_fence->src[0] = brw_imm_ud(0);
dummy_fence->src[1] = brw_imm_ud(0);
dummy_fence->src[2] = brw_vec8_grf(0, 0);
dummy_fence->src[3] = brw_reg();
dummy_fence->src[SEND_SRC_DESC] = brw_imm_ud(0);
dummy_fence->src[SEND_SRC_EX_DESC] = brw_imm_ud(0);
dummy_fence->src[SEND_SRC_PAYLOAD1] = brw_vec8_grf(0, 0);
dummy_fence->src[SEND_SRC_PAYLOAD2] = brw_reg();
dummy_fence->dst = dst;
dummy_fence->mlen = reg_unit(s.devinfo);
dummy_fence->ex_mlen = 0;
dummy_fence->sfid = BRW_SFID_UGM;