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*** empty log message *** 

From-SVN: r572
This commit is contained in:
Richard Stallman 1992-03-23 02:07:53 +00:00
parent c160c628f1
commit 929f36717e
1 changed files with 45 additions and 28 deletions
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73
gcc/c-decl.c
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@ -256,7 +256,7 @@ int current_function_returns_null;
static int warn_about_return_type;
/* Nonzero when starting a function delcared `extern inline'. */
/* Nonzero when starting a function declared `extern inline'. */
static int current_extern_inline;
@ -376,7 +376,7 @@ static struct binding_level *label_level_chain;
static tree grokparms (), grokdeclarator ();
tree pushdecl ();
static tree builtin_function ();
tree builtin_function ();
static tree lookup_tag ();
static tree lookup_tag_reverse ();
@ -476,7 +476,7 @@ int warn_conversion;
/* Warn if adding () is suggested. */
int warn_parentheses = 1;
int warn_parentheses;
/* Nonzero means `$' can be in an identifier.
See cccp.c for reasons why this breaks some obscure ANSI C programs. */
@ -622,6 +622,7 @@ c_decode_option (p)
warn_switch = 1;
warn_format = 1;
warn_char_subscripts = 1;
warn_parentheses = 1;
}
else
return 0;
@ -1127,7 +1128,7 @@ duplicate_decls (newdecl, olddecl)
warning_with_decl (newdecl, "shadowing built-in function `%s'");
}
/* Likewise, if the built-in is not ansi, then programs can
overide it even globally without an error. */
override it even globally without an error. */
else if (DECL_BUILT_IN_NONANSI (olddecl))
warning_with_decl (newdecl,
"built-in function `%s' declared as non-function");
@ -1610,7 +1611,8 @@ pushdecl (x)
TREE_TYPE (IDENTIFIER_IMPLICIT_DECL (name))))
{
warning_with_decl (x, "type mismatch with previous implicit declaration");
warning_with_decl (x, "previous implicit declaration of `%s'");
warning_with_decl (IDENTIFIER_IMPLICIT_DECL (name),
"previous implicit declaration of `%s'");
}
/* In PCC-compatibility mode, extern decls of vars with no current decl
@ -1682,7 +1684,14 @@ pushdecl (x)
if (TREE_PUBLIC (name)
&& ! TREE_PUBLIC (x) && ! TREE_EXTERNAL (x))
{
if (IDENTIFIER_IMPLICIT_DECL (name))
/* Okay to declare an ANSI built-in as inline static. */
if (t != 0 && DECL_BUILT_IN (t)
&& TREE_INLINE (x))
;
/* Okay to declare a non-ANSI built-in as anything. */
else if (t != 0 && DECL_BUILT_IN_NONANSI (t))
;
else if (IDENTIFIER_IMPLICIT_DECL (name))
pedwarn ("`%s' was declared implicitly `extern' and later `static'",
IDENTIFIER_POINTER (name));
else
@ -2439,7 +2448,7 @@ init_decl_processing ()
sizetype,
endlink))));
/* ``integer_tpe_node'' mispelling corrected: North-Keys 30 Mar 91 */
/* ``integer_tpe_node'' misspelling corrected: North-Keys 30 Mar 91 */
builtin_function ("__builtin_constant_p",
build_function_type (integer_type_node, endlink),
BUILT_IN_CONSTANT_P, 0);
@ -2537,6 +2546,8 @@ init_decl_processing ()
BUILT_IN_STRCPY, "strcpy");
builtin_function ("__builtin_strlen", sizet_ftype_string,
BUILT_IN_STRLEN, "strlen");
builtin_function ("__builtin_fsqrt", double_ftype_double,
BUILT_IN_FSQRT, "sqrt");
/* In an ANSI C program, it is okay to supply built-in meanings
for these functions, since applications cannot validly use them
with any other meaning.
@ -2551,6 +2562,10 @@ init_decl_processing ()
builtin_function ("strcmp", int_ftype_string_string, BUILT_IN_STRCMP, 0);
builtin_function ("strcpy", string_ftype_ptr_ptr, BUILT_IN_STRCPY, 0);
builtin_function ("strlen", sizet_ftype_string, BUILT_IN_STRLEN, 0);
#if 0 /* No good, since open-coded implementation fails to set errno.
The ANSI committee made a real mistake in specifying math fns. */
builtin_function ("sqrt", double_ftype_double, BUILT_IN_FSQRT, 0);
#endif
}
#if 0
@ -2563,7 +2578,6 @@ init_decl_processing ()
builtin_function ("__builtin_fmod", double_ftype_double_double, BUILT_IN_FMOD, 0);
builtin_function ("__builtin_frem", double_ftype_double_double, BUILT_IN_FREM, 0);
builtin_function ("__builtin_memset", ptr_ftype_ptr_int_int, BUILT_IN_MEMSET, 0);
builtin_function ("__builtin_fsqrt", double_ftype_double, BUILT_IN_FSQRT, 0);
builtin_function ("__builtin_getexp", double_ftype_double, BUILT_IN_GETEXP, 0);
builtin_function ("__builtin_getman", double_ftype_double, BUILT_IN_GETMAN, 0);
#endif
@ -2581,7 +2595,7 @@ init_decl_processing ()
If LIBRARY_NAME is nonzero, use that for DECL_ASSEMBLER_NAME,
the name to be called if we can't opencode the function. */
static tree
tree
builtin_function (name, type, function_code, library_name)
char *name;
tree type;
@ -3049,6 +3063,9 @@ push_parm_decl (parm)
tree parm;
{
tree decl;
int old_immediate_size_expand = immediate_size_expand;
/* Don't try computing parm sizes now -- wait till fn is called. */
immediate_size_expand = 0;
/* The corresponding pop_obstacks is in finish_decl. */
push_obstacks_nochange ();
@ -3056,6 +3073,8 @@ push_parm_decl (parm)
decl = grokdeclarator (TREE_VALUE (parm), TREE_PURPOSE (parm), PARM, 0);
decl = pushdecl (decl);
immediate_size_expand = old_immediate_size_expand;
current_binding_level->parm_order
= tree_cons (NULL_TREE, decl, current_binding_level->parm_order);
@ -3074,7 +3093,7 @@ clear_parm_order ()
}
/* Make TYPE a complete type based on INITIAL_VALUE.
Return 0 if successful, 1 if INITIAL_VALUE can't be decyphered,
Return 0 if successful, 1 if INITIAL_VALUE can't be deciphered,
2 if there was no information (in which case assume 1 if DO_DEFAULT). */
int
@ -3161,7 +3180,7 @@ complete_array_type (type, initial_value, do_default)
argument type is specified but not the name.
This function is where the complicated C meanings of `static'
and `extern' are intrepreted. */
and `extern' are interpreted. */
static tree
grokdeclarator (declarator, declspecs, decl_context, initialized)
@ -3185,7 +3204,7 @@ grokdeclarator (declarator, declspecs, decl_context, initialized)
int funcdef_flag = 0;
enum tree_code innermost_code = ERROR_MARK;
int bitfield = 0;
int variable_size = 0;
int size_varies = 0;
if (decl_context == BITFIELD)
bitfield = 1, decl_context = FIELD;
@ -3318,7 +3337,7 @@ grokdeclarator (declarator, declspecs, decl_context, initialized)
typedef_type = type;
if (type)
variable_size = C_TYPE_VARIABLE_SIZE (type);
size_varies = C_TYPE_VARIABLE_SIZE (type);
/* No type at all: default to `int', and set EXPLICIT_INT
because it was not a user-defined typedef. */
@ -3592,8 +3611,9 @@ grokdeclarator (declarator, declspecs, decl_context, initialized)
1);
/* Make sure the array size remains visibly nonconstant
even if it is (eg) a const variable with known value. */
variable_size = 1;
itype = build_index_type (save_expr (itype));
size_varies = 1;
itype = variable_size (itype);
itype = build_index_type (itype);
}
}
@ -3628,7 +3648,7 @@ grokdeclarator (declarator, declspecs, decl_context, initialized)
#endif
type = build_array_type (type, itype);
if (variable_size)
if (size_varies)
C_TYPE_VARIABLE_SIZE (type) = 1;
}
else if (TREE_CODE (declarator) == CALL_EXPR)
@ -3640,7 +3660,7 @@ grokdeclarator (declarator, declspecs, decl_context, initialized)
if (type == error_mark_node)
continue;
variable_size = 0;
size_varies = 0;
/* Warn about some types functions can't return. */
@ -3708,7 +3728,7 @@ grokdeclarator (declarator, declspecs, decl_context, initialized)
type = c_build_type_variant (type, constp, volatilep);
constp = 0;
volatilep = 0;
variable_size = 0;
size_varies = 0;
type = build_pointer_type (type);
@ -3778,7 +3798,7 @@ grokdeclarator (declarator, declspecs, decl_context, initialized)
&& TREE_CODE (type) == ARRAY_TYPE && TYPE_DOMAIN (type) == 0)
{
type = build_array_type (TREE_TYPE (type), 0);
if (variable_size)
if (size_varies)
C_TYPE_VARIABLE_SIZE (type) = 1;
}
@ -3829,7 +3849,7 @@ grokdeclarator (declarator, declspecs, decl_context, initialized)
type = build_pointer_type
(c_build_type_variant (TREE_TYPE (type), constp, volatilep));
volatilep = constp = 0;
variable_size = 0;
size_varies = 0;
}
else if (TREE_CODE (type) == FUNCTION_TYPE)
{
@ -3843,7 +3863,7 @@ grokdeclarator (declarator, declspecs, decl_context, initialized)
error ("parameter `%s' is initialized", name);
decl = build_decl (PARM_DECL, declarator, type);
if (variable_size)
if (size_varies)
C_DECL_VARIABLE_SIZE (decl) = 1;
/* Compute the type actually passed in the parmlist,
@ -3887,7 +3907,7 @@ grokdeclarator (declarator, declspecs, decl_context, initialized)
#endif
}
decl = build_decl (FIELD_DECL, declarator, type);
if (variable_size)
if (size_varies)
C_DECL_VARIABLE_SIZE (decl) = 1;
}
else if (TREE_CODE (type) == FUNCTION_TYPE)
@ -3956,7 +3976,7 @@ grokdeclarator (declarator, declspecs, decl_context, initialized)
}
decl = build_decl (VAR_DECL, declarator, type);
if (variable_size)
if (size_varies)
C_DECL_VARIABLE_SIZE (decl) = 1;
if (inlinep)
@ -4267,7 +4287,7 @@ xref_tag (code, name)
/* Even if this is the wrong type of tag, return what we found.
There will be an error message anyway, from pending_xref_error.
If we create an empty xref just for an invalid use of the type,
the main result is to create lots of superflous error messages. */
the main result is to create lots of superfluous error messages. */
if (ref)
return ref;
@ -5325,10 +5345,7 @@ store_parm_decls ()
will be a variant of the main variant of the original function
type. */
TREE_TYPE (fndecl)
= build_type_copy (TYPE_MAIN_VARIANT (TREE_TYPE (fndecl)),
TYPE_READONLY (TREE_TYPE (fndecl)),
TYPE_VOLATILE (TREE_TYPE (fndecl)));
TREE_TYPE (fndecl) = build_type_copy (TREE_TYPE (fndecl));
TYPE_ACTUAL_ARG_TYPES (TREE_TYPE (fndecl)) = actual;
}