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re PR c/35434 (ICE with attribute alias)

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PR c/35434
	* c-common.c (handle_alias_attribute): Disallow attribute for
	anything not a FUNCTION_DECL or VAR_DECL.

testsuite:
	* gcc.dg/attr-alias-4.c: New test.

From-SVN: r143998
This commit is contained in:
Joseph Myers 2009-02-07 00:32:37 +00:00 committed by Joseph Myers
parent 7d07349164
commit feab5a6736
4 changed files with 21 additions and 1 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2009-02-06 Joseph Myers <joseph@codesourcery.com>
PR c/35434
* c-common.c (handle_alias_attribute): Disallow attribute for
anything not a FUNCTION_DECL or VAR_DECL.
2009-02-06 Janis Johnson <janis187@us.ibm.com>
PR c/39035

7
gcc/c-common.c
View File

@ -6015,7 +6015,12 @@ handle_alias_attribute (tree *node, tree name, tree args,
{
tree decl = *node;
if ((TREE_CODE (decl) == FUNCTION_DECL && DECL_INITIAL (decl))
if (TREE_CODE (decl) != FUNCTION_DECL && TREE_CODE (decl) != VAR_DECL)
{
warning (OPT_Wattributes, "%qE attribute ignored", name);
*no_add_attrs = true;
}
else if ((TREE_CODE (decl) == FUNCTION_DECL && DECL_INITIAL (decl))
|| (TREE_CODE (decl) != FUNCTION_DECL
&& TREE_PUBLIC (decl) && !DECL_EXTERNAL (decl))
/* A static variable declaration is always a tentative definition,

5
gcc/testsuite/ChangeLog
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@ -1,3 +1,8 @@
2009-02-06 Joseph Myers <joseph@codesourcery.com>
PR c/35434
* gcc.dg/attr-alias-4.c: New test.
2009-02-06 Janis Johnson <janis187@us.ibm.com>
PR c/39035

4
gcc/testsuite/gcc.dg/attr-alias-4.c Normal file
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@ -0,0 +1,4 @@
/* ICE on invalid alias attribute: PR 35434. */
/* { dg-do compile } */
/* { dg-options "" } */
typedef int i __attribute__((alias("j"))); /* { dg-warning "ignored" } */