i965/vec4: implement double packing
Reviewed-by: Matt Turner <mattst88@gmail.com>
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@ -1533,6 +1533,17 @@ vec4_visitor::nir_emit_alu(nir_alu_instr *instr)
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break;
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}
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case nir_op_pack_double_2x32_split: {
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dst_reg result = dst_reg(this, glsl_type::dvec4_type);
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dst_reg tmp = dst_reg(this, glsl_type::uvec4_type);
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emit(MOV(tmp, retype(op[0], BRW_REGISTER_TYPE_UD)));
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emit(VEC4_OPCODE_SET_LOW_32BIT, result, src_reg(tmp));
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emit(MOV(tmp, retype(op[1], BRW_REGISTER_TYPE_UD)));
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emit(VEC4_OPCODE_SET_HIGH_32BIT, result, src_reg(tmp));
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emit(MOV(dst, src_reg(result)));
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break;
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}
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case nir_op_unpack_double_2x32_split_x:
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case nir_op_unpack_double_2x32_split_y: {
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enum opcode oper = (instr->op == nir_op_unpack_double_2x32_split_x) ?
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