/* $Id$ */ /* * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands. * See the copyright notice in the ACK home directory, in the file "Copyright". */ /* S H A R E D * * A U X I L I A R Y R O U T I N E S * */ offset off_set(line_p lnp); /* lnp has a SHORT or OFFSET operand. Return * the value of this operand as an offset. */ extern offset aoff(arg_p list, int n); /* Determine the offset field of the * n'th argument in the list (this argument * must have type ARGOFF). Start counting at 0. */ extern offset tmplocal(proc_p p, offset size); /* Allocate a new local variable in the * stack frame of p. */ line_p int_line(offset off); /* Allocate a line struct of type OPSHORT * or OPOFFSET, whichever one fits best. */ line_p reg_mes(offset tmp, short size, int typ, int score); /* Generate a register message with the * given arguments. */ bool dom(bblock_p b1, bblock_p b2); /* See if b1 dominates b2. Note that a * block always * dominates itself. */ bblock_p common_dom(bblock_p a, bblock_p b); /* find a basic block that dominates a as * well as b; note that a basic block also * dominates itself. */ short add_timespace(short time, short space); /* Add together a time and space, using * the time_space_ratio parameter that * may be set by the user. */ void rm_line(line_p l, bblock_p b); /* Remove line l from b basic block b. */ void appnd_line(line_p l1, line_p l2); /* Put line l1 after l2. */ line_p last_instr(bblock_p b); /* Determine the last line of a basic block. */ line_p find_mesreg(offset off); /* Find the register message for the local * with the given offset. */ bool is_regvar(offset off); /* See if there is a 'register message' * for the local variable with the * given offset. */ offset regv_arg(offset off, int n); /* Fetch the n'th argument of the * register message of the local with * the given offset. */