44 lines
1.4 KiB
C
44 lines
1.4 KiB
C
/* $Header$ */
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/*
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* (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
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* See the copyright notice in the ACK home directory, in the file "Copyright".
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*/
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/*
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* L O C A L S . H
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*/
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extern local_p *locals; /* table of locals, index is local-number */
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extern short nrlocals; /* number of locals for which we keep ud-info */
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extern make_localtab(); /* (proc_p p)
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* Analyse the text of procedure p to determine
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* which local variable p has. Make a table of
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* these variables ('locals') and count them
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* ('nrlocals'). Also collect register messages.
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*/
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extern var_nr(); /* (line_p l; short *nr_out;bool *found_out)
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* Compute the 'variable number' of the
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* variable referenced by EM instruction l.
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*/
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/* Every global variable for which ud-info is maintained has
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* a 'global variable number' (o_globnr). Every useful local
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* has a 'local variable number', which is its index in the
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* 'locals' table. All these variables also have a
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* 'variable number'. Conversions exist between these numbers.
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*/
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#define TO_GLOBAL(v) (v)
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#define TO_LOCAL(v) (v - nrglobals)
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#define GLOB_TO_VARNR(v) (v)
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#define LOC_TO_VARNR(v) (v + nrglobals)
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#define IS_GLOBAL(v) (v <= nrglobals)
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#define IS_LOCAL(v) (v > nrglobals)
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#define REGVAR(lc) lc->lc_flags |= LCF_REG
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#define IS_REGVAR(lc) (lc->lc_flags & LCF_REG)
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#define BADLC(lc) lc->lc_flags |= LCF_BAD
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#define IS_BADLC(lc) (lc->lc_flags & LCF_BAD)
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