boolean patchtestreg(int node, int reg) {
InstructionPtr i = this.getjumpcontrol(node);
if (GET_OPCODE(i.get()) != OP_TESTSET)
/* cannot patch other instructions */
return false;
if (reg != NO_REG && reg != GETARG_B(i.get())) SETARG_A(i, reg);
else
/* no register to put value or register already has the value */
i.set(CREATE_ABC(OP_TEST, GETARG_B(i.get()), 0, Lua.GETARG_C(i.get())));
return true;
}
