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Catch and ignore empty, ineffectual alignment frags when deciding if a

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branch can be short.
This commit is contained in:
Nick Clifton 2001-07-06 08:21:35 +00:00
parent eed1d0acc7
commit 7099f9f917
2 changed files with 22 additions and 4 deletions
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6
gas/ChangeLog
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@ -1,3 +1,9 @@
2001-07-06 Nick Clifton <nickc@cambridge.redhat.com>
* config/tc-m68k.c (md_estimate_size_before_relax): Catch and
ignore empty, ineffectual alignment frags when deciding if a
branch can be short.
2001-07-05 Steve Ellcey <sje@cup.hp.com>
* config/tc-ia64.c (special_section): Add SPECIAL_SECTION_INIT_ARRAY

20
gas/config/tc-m68k.c
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@ -4694,13 +4694,25 @@ md_estimate_size_before_relax (fragP, segment)
fragS *l;
stop = symbol_get_frag (fragP->fr_symbol);
for (l = fragP->fr_next; l != stop; l = l->fr_next)
if (l->fr_fix + l->fr_var != 0)
break;
if (l == stop)
{
fragP->fr_subtype = TAB (TABTYPE (fragP->fr_subtype), SHORT);
/* Catch empty alignment frags whoes fr_offset field
is an alignment requirement of 2 bytes. The check
below will misinterpret this as evidence that real
code exists between the symbol and the instruction
and so will not convert the short jump into a word
jump. */
if (l->fr_fix == 0
&& l->fr_var == 1
&& (l->fr_type == rs_align || l->fr_type == rs_align_code))
continue;
if (l->fr_fix + l->fr_var != 0)
break;
}
if (l == stop)
fragP->fr_subtype = TAB (TABTYPE (fragP->fr_subtype), SHORT);
}
break;
default: