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/* PR middle-end/81824 - Warn for missing attributes with function aliases
Exercise error handling for attribute copy.
{ dg-do compile }
{ dg-require-alias "" }
{ dg-options "-O2 -Wall" } */
#define ATTR(list) __attribute__ (list)
/* Verify incorrect numbers of arguments. */
ATTR ((copy)) void
fno_args (void); /* { dg-error "wrong number of arguments specified for .copy. attribute" } */
ATTR ((copy ())) void
fno_args2 (void); /* { dg-error "wrong number of arguments specified for .copy. attribute" } */
ATTR ((copy (fno_args, fno_args))) void
fmlti_args (void); /* { dg-error "wrong number of arguments specified for .copy. attribute" } */
/* Verify that referencing an undeclared symbol is rejected with an error. */
ATTR ((copy (foobar))) /* { dg-error ".foobar. undeclared" } */
void fundeclared (void);
/* Verify that using a string argument triggers a descriptive error
(given attributes like alias and weakref using a string is a likely
mistake). */
ATTR ((copy ("foobar")))
void fstring (void); /* { dg-error ".copy. attribute argument cannot be a string" } */
/* Ditto for an integer. */
ATTR ((copy (123)))
void fnumber (void); /* { dg-error ".copy. attribute argument cannot be a constant arithmetic expression" } */
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