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intel/brw: Add fs_builder::BROADCAST() helper

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Include in the helper which already take care of using exec_all() and
taking the first component of the result.  Both are expected by
SHADER_OPCODE_BROADCAST.

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/31029>
This commit is contained in:
Caio Oliveira 2024-09-06 15:15:19 -07:00 • committed by Marge Bot
parent 67aadd4f0b
commit d97381efd8
2 changed files with 13 additions and 10 deletions
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16
src/intel/compiler/brw_fs_builder.h
View file

@ -378,14 +378,10 @@ namespace brw {
* dispatch. Once we teach const/copy propagation about scalars we
* should go back to scalar destinations here.
*/
const fs_builder ubld = exec_all();
const brw_reg chan_index = vgrf(BRW_TYPE_UD);
const brw_reg dst = vgrf(src.type);
ubld.emit(SHADER_OPCODE_FIND_LIVE_CHANNEL, chan_index);
ubld.emit(SHADER_OPCODE_BROADCAST, dst, src, component(chan_index, 0));
return brw_reg(component(dst, 0));
exec_all().emit(SHADER_OPCODE_FIND_LIVE_CHANNEL, chan_index);
return BROADCAST(src, component(chan_index, 0));
}
brw_reg
@ -773,6 +769,14 @@ namespace brw {
return reg;
}
brw_reg
BROADCAST(brw_reg value, brw_reg index) const
{
const brw_reg dst = vgrf(value.type);
exec_all().emit(SHADER_OPCODE_BROADCAST, dst, value, index);
return component(dst, 0);
}
fs_visitor *shader;
fs_inst *BREAK() { return emit(BRW_OPCODE_BREAK); }

7
src/intel/compiler/brw_fs_nir.cpp
View file

@ -6811,7 +6811,6 @@ fs_nir_emit_intrinsic(nir_to_brw_state &ntb,
break;
}
brw_reg tmp = bld.vgrf(value.type);
/* When for some reason the subgroup_size picked by NIR is larger than
* the dispatch size picked by the backend (this could happen in RT,
@ -6823,10 +6822,10 @@ fs_nir_emit_intrinsic(nir_to_brw_state &ntb,
bound_invocation =
bld.AND(bound_invocation, brw_imm_ud(s.dispatch_width - 1));
}
bld.exec_all().emit(SHADER_OPCODE_BROADCAST, tmp, value,
bld.emit_uniformize(bound_invocation));
bld.MOV(retype(dest, value.type), brw_reg(component(tmp, 0)));
brw_reg tmp = bld.BROADCAST(value, bld.emit_uniformize(bound_invocation));
bld.MOV(retype(dest, value.type), tmp);
break;
}