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re PR c++/29735 (ICE on "main" returning vector)

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PR c++/29735
	* decl.c (grokfndecl): Check main's type after applying
	attributes, not before.

	* g++.dg/warn/main-3.C: New test.

From-SVN: r119287
This commit is contained in:
Jakub Jelinek 2006-11-28 13:56:53 +01:00 committed by Jakub Jelinek
parent f464d80f27
commit da33778420
4 changed files with 33 additions and 11 deletions
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6
gcc/cp/ChangeLog
View File

@ -1,3 +1,9 @@
2006-11-28 Jakub Jelinek <jakub@redhat.com>
PR c++/29735
* decl.c (grokfndecl): Check main's type after applying
attributes, not before.
2006-11-27 Mark Mitchell <mark@codesourcery.com>
* class.c (build_vcall_offset_vtbl_entries): Do not add vcall

26
gcc/cp/decl.c
View File

@ -6026,17 +6026,6 @@ grokfndecl (tree ctype,
error ("cannot declare %<::main%> to be inline");
if (!publicp)
error ("cannot declare %<::main%> to be static");
if (!same_type_p (TREE_TYPE (TREE_TYPE (decl)),
integer_type_node))
{
tree oldtypeargs = TYPE_ARG_TYPES (TREE_TYPE (decl));
tree newtype;
error ("%<::main%> must return %<int%>");
newtype = build_function_type (integer_type_node,
oldtypeargs);
TREE_TYPE (decl) = newtype;
}
check_main_parameter_types (decl);
inlinep = 0;
publicp = 1;
}
@ -6143,6 +6132,21 @@ grokfndecl (tree ctype,
*attrlist = NULL_TREE;
}
/* Check main's type after attributes have been applied. */
if (ctype == NULL_TREE && DECL_MAIN_P (decl))
{
if (!same_type_p (TREE_TYPE (TREE_TYPE (decl)),
integer_type_node))
{
tree oldtypeargs = TYPE_ARG_TYPES (TREE_TYPE (decl));
tree newtype;
error ("%<::main%> must return %<int%>");
newtype = build_function_type (integer_type_node, oldtypeargs);
TREE_TYPE (decl) = newtype;
}
check_main_parameter_types (decl);
}
if (ctype != NULL_TREE
&& (! TYPE_FOR_JAVA (ctype) || check_java_method (decl))
&& check)

5
gcc/testsuite/ChangeLog
View File

@ -1,3 +1,8 @@
2006-11-28 Jakub Jelinek <jakub@redhat.com>
PR c++/29735
* g++.dg/warn/main-3.C: New test.
2006-11-28 Jan Hubicka <jh@suse.cz>
* gcc.dg/winline-1.c: New test.

7
gcc/testsuite/g++.dg/warn/main-3.C Normal file
View File

@ -0,0 +1,7 @@
// PR c++/29735
// { dg-do compile }
int __attribute__ ((vector_size (8))) main () // { dg-error "must return" }
{
return 0;
}