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aco: implement nir_export_amd

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Reviewed-by: Timur Kristóf <timur.kristof@gmail.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Signed-off-by: Qiang Yu <yuq825@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/20691>
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Qiang Yu 2022-12-19 15:38:19 +08:00 • committed by Marge Bot
parent 5fe4dd3d68
commit 8331842258
1 changed files with 36 additions and 0 deletions
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36
src/amd/compiler/aco_instruction_selection.cpp
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@ -9200,6 +9200,42 @@ visit_intrinsic(isel_context* ctx, nir_intrinsic_instr* instr)
bld.sopk(aco_opcode::s_waitcnt_vscnt, Definition(sgpr_null, s1), 0);
break;
}
case nir_intrinsic_export_amd: {
unsigned flags = nir_intrinsic_flags(instr);
unsigned target = nir_intrinsic_base(instr);
unsigned write_mask = nir_intrinsic_write_mask(instr);
/* Mark vertex export block. */
if (target == V_008DFC_SQ_EXP_POS)
ctx->block->kind |= block_kind_export_end;
aco_ptr<Export_instruction> exp{
create_instruction<Export_instruction>(aco_opcode::exp, Format::EXP, 4, 0)};
exp->dest = target;
exp->enabled_mask = write_mask;
exp->compressed = flags & AC_EXP_FLAG_COMPRESSED;
exp->valid_mask = flags & AC_EXP_FLAG_VALID_MASK;
/* ACO may reorder position export instructions, then mark done for last
* export instruction. So don't respect the nir AC_EXP_FLAG_DONE for position
* exports here and leave it to ACO.
*/
if (target == V_008DFC_SQ_EXP_PRIM)
exp->done = flags & AC_EXP_FLAG_DONE;
else
exp->done = false;
Temp value = get_ssa_temp(ctx, instr->src[0].ssa);
for (unsigned i = 0; i < 4; i++) {
exp->operands[i] = write_mask & BITFIELD_BIT(i) ?
Operand(emit_extract_vector(ctx, value, i, v1)) :
Operand(v1);
}
ctx->block->instructions.emplace_back(std::move(exp));
break;
}
default:
isel_err(&instr->instr, "Unimplemented intrinsic instr");
abort();