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removed z80_optimize_expr; redundant since 2006-04-04

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Arnold Metselaar
2006-04-09 18:08:08 +00:00
parent b2a0b9b2f6
commit 9e75b3faad
3 changed files with 5 additions and 66 deletions
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5
gas/ChangeLog
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@ -1,3 +1,8 @@
2006-04-09 Arnold Metselaar <arnold.metselaar@planet.nl>
* config/tc-z80.c (z80_optimize_expr): Removed; redundant since 2006-04-04.
* config/tc-z80.h (z80_optimize_expr, md_optimize_expr): Removed.
2006-04-07 Joerg Wunsch <j.gnu@uriah.heep.sax.de>
* gas/config/tc-avr.c (mcu_types): Add support for attiny261,

64
gas/config/tc-z80.c
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@ -460,70 +460,6 @@ check_mach (int ins_type)
ins_used |= ins_type;
}
/* This function tries to subtract two symbols, the generic code does
that too, but this function tries harder.
The behaviour of this function is not altered by extra
fragmentations caused by the code to produce listings. */
int
z80_optimize_expr (expressionS *resultP, operatorT left_op,
expressionS *right)
{
int res, swap, som;
fragS *lfrag, *rfrag, *cur;
res = 0;
if (left_op == O_subtract
&& right->X_op == O_symbol
&& resultP->X_op == O_symbol)
{
lfrag = symbol_get_frag (resultP->X_add_symbol);
rfrag = symbol_get_frag (right->X_add_symbol);
if (S_GET_SEGMENT (right->X_add_symbol) != undefined_section
&& (S_GET_SEGMENT (right->X_add_symbol)
== S_GET_SEGMENT (resultP->X_add_symbol)))
{
for (swap = 0; (res == 0) && (swap < 2); ++swap)
{
if (swap)
{
cur = lfrag;
lfrag = rfrag;
rfrag = cur;
}
else
cur = rfrag;
/* Now som == cur->fr_address - rfrag->address, except
the latter may not have been computed yet. */
for (som = 0; cur && cur != lfrag; cur = cur->fr_next)
{
if (cur->fr_type == rs_fill) /* Is the size fized? */
som += cur->fr_fix+cur->fr_offset*cur->fr_var;
else
break;
}
if (cur == lfrag)
{
resultP->X_add_number -= right->X_add_number;
resultP->X_add_number
+= (S_GET_VALUE (resultP->X_add_symbol)
- S_GET_VALUE (right->X_add_symbol));
som -= lfrag->fr_address - rfrag->fr_address;
/* Correct the result if the fr_address
fields are not computed yet. */
resultP->X_add_number += (swap ? -som : som);
resultP->X_op = O_constant;
resultP->X_add_symbol = 0;
res = 1;
}
}
}
}
return res;
}
/* Check whether an expression is indirect. */
static int
is_indir (const char *s)

2
gas/config/tc-z80.h
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@ -55,12 +55,10 @@
/* Define some functions to be called by generic code. */
#define md_end z80_md_end
#define md_start_line_hook() { if (z80_start_line_hook ()) continue; }
#define md_optimize_expr z80_optimize_expr
#define TC_CONS_FIX_NEW z80_cons_fix_new
extern void z80_md_end (void);
extern int z80_start_line_hook (void);
extern int z80_optimize_expr (expressionS *, operatorT, expressionS *);
extern void z80_cons_fix_new (fragS *, int, int, expressionS *);
#define WORKING_DOT_WORD