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(attrib): Handle string args as expressions, 

merging the two rules.  `mode' attribute now takes a string arg.
Delete the rule for an identifier as arg.

From-SVN: r6913
This commit is contained in:
Richard Stallman 1994-03-28 01:27:48 +00:00
parent 423b04b06f
commit 309c23f7dd
1 changed files with 16 additions and 30 deletions
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46
gcc/c-parse.in
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@ -1062,21 +1062,27 @@ attribute_list
;
attrib
: IDENTIFIER
: identifier
{ if (strcmp (IDENTIFIER_POINTER ($1), "packed")
&& strcmp (IDENTIFIER_POINTER ($1), "noreturn"))
warning ("`%s' attribute directive ignored",
IDENTIFIER_POINTER ($1));
$$ = $1; }
| TYPE_QUAL
| IDENTIFIER '(' IDENTIFIER ')'
{ /* If not "mode (m)" or "aligned", then issue warning.
If "aligned", this will later produce an error in decl_attributes
since an identifier is not a valid constant, but we want to give
an error instead of a warning when the attribute name is
recognized but has an improper argument. */
if (strcmp (IDENTIFIER_POINTER ($1), "mode") != 0
&& strcmp (IDENTIFIER_POINTER ($1), "aligned") != 0)
| identifier '(' expr_no_commas ')'
{ /* If not aligned(n) or section(name), then issue warning */
if (strcmp (IDENTIFIER_POINTER ($1), "section") == 0
|| strcmp (IDENTIFIER_POINTER ($1), "mode") == 0)
{
if (TREE_CODE ($3) != STRING_CST)
{
error ("invalid argument in `%s' attribute",
IDENTIFIER_POINTER ($1));
$$ = $1;
}
$$ = tree_cons ($1, $3, NULL_TREE);
}
else if (strcmp (IDENTIFIER_POINTER ($1), "aligned") != 0)
{
warning ("`%s' attribute directive ignored",
IDENTIFIER_POINTER ($1));
@ -1084,17 +1090,7 @@ attrib
}
else
$$ = tree_cons ($1, $3, NULL_TREE); }
| IDENTIFIER '(' expr_no_commas ')'
{ /* if not "aligned(n)", then issue warning */
if (strcmp (IDENTIFIER_POINTER ($1), "aligned") != 0)
{
warning ("`%s' attribute directive ignored",
IDENTIFIER_POINTER ($1));
$$ = $1;
}
else
$$ = tree_cons ($1, $3, NULL_TREE); }
| IDENTIFIER '(' IDENTIFIER ',' expr_no_commas ',' expr_no_commas ')'
| identifier '(' IDENTIFIER ',' expr_no_commas ',' expr_no_commas ')'
{ /* if not "format(...)", then issue warning */
if (strcmp (IDENTIFIER_POINTER ($1), "format") != 0)
{
@ -1108,16 +1104,6 @@ attrib
tree_cons ($5, $7, NULL_TREE),
NULL_TREE),
NULL_TREE); }
| IDENTIFIER '(' STRING ')'
{ /* If not "section (name)", then issue warning. */
if (strcmp (IDENTIFIER_POINTER ($1), "section") != 0)
{
warning ("`%s' attribute directive ignored",
IDENTIFIER_POINTER ($1));
$$ = $1;
}
else
$$ = tree_cons ($1, $3, NULL_TREE); }
;
/* Initializers. `init' is the entry point. */