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intel/compiler: implement 16-bit pack/unpack opcodes

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Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
This commit is contained in:
Iago Toral Quiroga
2018-04-17 10:23:47 +02:00
parent 1dacb56279
commit dd41630d9a
1 changed files with 10 additions and 0 deletions
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src/intel/compiler/brw_fs_nir.cpp
+10
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@@ -1314,6 +1314,7 @@ fs_visitor::nir_emit_alu(const fs_builder &bld, nir_alu_instr *instr)
break;
case nir_op_pack_64_2x32_split:
case nir_op_pack_32_2x16_split:
bld.emit(FS_OPCODE_PACK, result, op[0], op[1]);
break;
@@ -1326,6 +1327,15 @@ fs_visitor::nir_emit_alu(const fs_builder &bld, nir_alu_instr *instr)
break;
}
case nir_op_unpack_32_2x16_split_x:
case nir_op_unpack_32_2x16_split_y: {
if (instr->op == nir_op_unpack_32_2x16_split_x)
bld.MOV(result, subscript(op[0], BRW_REGISTER_TYPE_UW, 0));
else
bld.MOV(result, subscript(op[0], BRW_REGISTER_TYPE_UW, 1));
break;
}
case nir_op_fpow:
inst = bld.emit(SHADER_OPCODE_POW, result, op[0], op[1]);
inst->saturate = instr->dest.saturate;