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i965/vec4: implement double packing 

Reviewed-by: Matt Turner <mattst88@gmail.com>
This commit is contained in:
Iago Toral Quiroga 2016-06-01 09:57:06 +02:00 committed by Samuel Iglesias Gonsálvez
parent 94cfdf586a
commit 8a3ba03339
1 changed files with 11 additions and 0 deletions
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11
src/mesa/drivers/dri/i965/brw_vec4_nir.cpp
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@ -1533,6 +1533,17 @@ vec4_visitor::nir_emit_alu(nir_alu_instr *instr)
break;
}
case nir_op_pack_double_2x32_split: {
dst_reg result = dst_reg(this, glsl_type::dvec4_type);
dst_reg tmp = dst_reg(this, glsl_type::uvec4_type);
emit(MOV(tmp, retype(op[0], BRW_REGISTER_TYPE_UD)));
emit(VEC4_OPCODE_SET_LOW_32BIT, result, src_reg(tmp));
emit(MOV(tmp, retype(op[1], BRW_REGISTER_TYPE_UD)));
emit(VEC4_OPCODE_SET_HIGH_32BIT, result, src_reg(tmp));
emit(MOV(dst, src_reg(result)));
break;
}
case nir_op_unpack_double_2x32_split_x:
case nir_op_unpack_double_2x32_split_y: {
enum opcode oper = (instr->op == nir_op_unpack_double_2x32_split_x) ?