FreeChainXenon/gcc
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

re PR c++/85033 (internal compiler error: in fold_offsetof_1, at c-family/c-common.c:6269)

Browse source 
PR c++/85033
	* semantics.c (finish_offsetof): Don't allow CONST_DECLs.

	* g++.dg/ext/builtin-offsetof2.C: New test.

From-SVN: r258801
This commit is contained in:
Marek Polacek 2018-03-23 12:55:55 +00:00 • committed by Marek Polacek
parent f300628bfb
commit b01556f72a
4 changed files with 22 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

5
gcc/cp/ChangeLog
View file

@ -1,3 +1,8 @@
2018-03-23 Marek Polacek <polacek@redhat.com>
PR c++/85033
* semantics.c (finish_offsetof): Don't allow CONST_DECLs.
2018-03-23 Alexandre Oliva <aoliva@redhat.com>
PR c++/71251

5
gcc/cp/semantics.c
View file

@ -4072,6 +4072,11 @@ finish_offsetof (tree object_ptr, tree expr, location_t loc)
}
return error_mark_node;
}
if (TREE_CODE (expr) == CONST_DECL)
{
error ("cannot apply %<offsetof%> to an enumerator %qD", expr);
return error_mark_node;
}
if (REFERENCE_REF_P (expr))
expr = TREE_OPERAND (expr, 0);
if (!complete_type_or_else (TREE_TYPE (TREE_TYPE (object_ptr)), object_ptr))

5
gcc/testsuite/ChangeLog
View file

@ -1,3 +1,8 @@
2018-03-23 Marek Polacek <polacek@redhat.com>
PR c++/85033
* g++.dg/ext/builtin-offsetof2.C: New test.
2018-03-23 Eric Botcazou <ebotcazou@adacore.com>
PR debug/85020

7
gcc/testsuite/g++.dg/ext/builtin-offsetof2.C Normal file
View file

@ -0,0 +1,7 @@
// PR c++/85033
struct S {
enum { E };
};
int b = __builtin_offsetof(S, E); // { dg-error "cannot apply .offsetof. to an enumerator" }