i965/nir/vec4: Implement vector "any" operation

Adds NIR ALU operations:
   * nir_op_bany2
   * nir_op_bany3
   * nir_op_bany4

Reviewed-by: Jason Ekstrand <jason.ekstrand@intel.com>

diff --git a/src/mesa/drivers/dri/i965/brw_vec4_nir.cpp b/src/mesa/drivers/dri/i965/brw_vec4_nir.cpp
index 8a87759fcb97f45f05a52e1a47857e00ebad402e..a586f902f677344f69a9d1436ea64470a7b08395 100644 (file)
--- a/src/mesa/drivers/dri/i965/brw_vec4_nir.cpp
+++ b/src/mesa/drivers/dri/i965/brw_vec4_nir.cpp
@@ -1228,6 +1228,20 @@ vec4_visitor::nir_emit_alu(nir_alu_instr *instr)
       inst->saturate = instr->dest.saturate;
       break;
 
+   case nir_op_bany2:
+   case nir_op_bany3:
+   case nir_op_bany4: {
+      dst_reg tmp = dst_reg(this, glsl_type::bool_type);
+      tmp.writemask = brw_writemask_for_size(nir_op_infos[instr->op].input_sizes[0]);
+
+      emit(CMP(tmp, op[0], src_reg(0), BRW_CONDITIONAL_NZ));
+
+      emit(MOV(dst, src_reg(0)));
+      inst = emit(MOV(dst, src_reg(~0)));
+      inst->predicate = BRW_PREDICATE_ALIGN16_ANY4H;
+      break;
+   }
+
    default:
       unreachable("Unimplemented ALU operation");
    }