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; }