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re PR c++/77549 (ICE on invalid C++ code that references undeclared variable)

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PR c++/77549
	* name-lookup.c (consider_binding_level): Look through TREE_LIST
	and OVERLOAD.

	* g++.dg/lookup/pr77549.C: New test.

From-SVN: r240148
This commit is contained in:
Jakub Jelinek 2016-09-14 23:55:10 +02:00 • committed by Jakub Jelinek
parent f6c7d678f8
commit 28ca05f00a
4 changed files with 103 additions and 6 deletions
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6
gcc/cp/ChangeLog
View file

@ -1,3 +1,9 @@
2016-09-14 Jakub Jelinek <jakub@redhat.com>
PR c++/77549
* name-lookup.c (consider_binding_level): Look through TREE_LIST
and OVERLOAD.
2016-09-14 Marek Polacek <polacek@redhat.com>
* typeck.c (cp_build_unary_op): Diagnose incrementing boolean

22
gcc/cp/name-lookup.c
View file

@ -4707,19 +4707,29 @@ consider_binding_level (tree name, best_match <tree, tree> &bm,
for (tree t = lvl->names; t; t = TREE_CHAIN (t))
{
tree d = t;
/* OVERLOADs or decls from using declaration are wrapped into
TREE_LIST. */
if (TREE_CODE (d) == TREE_LIST)
{
d = TREE_VALUE (d);
d = OVL_CURRENT (d);
}
/* Don't use bindings from implicitly declared functions,
as they were likely misspellings themselves. */
if (TREE_TYPE (t) == error_mark_node)
if (TREE_TYPE (d) == error_mark_node)
continue;
/* Skip anticipated decls of builtin functions. */
if (TREE_CODE (t) == FUNCTION_DECL
&& DECL_BUILT_IN (t)
&& DECL_ANTICIPATED (t))
if (TREE_CODE (d) == FUNCTION_DECL
&& DECL_BUILT_IN (d)
&& DECL_ANTICIPATED (d))
continue;
if (DECL_NAME (t))
bm.consider (DECL_NAME (t));
if (DECL_NAME (d))
bm.consider (DECL_NAME (d));
}
}

5
gcc/testsuite/ChangeLog
View file

@ -1,3 +1,8 @@
2016-09-14 Jakub Jelinek <jakub@redhat.com>
PR c++/77549
* g++.dg/lookup/pr77549.C: New test.
2016-09-14 Marek Polacek <polacek@redhat.com>
* c-c++-common/gomp/atomic-12.c: Use -Wno-deprecated.

76
gcc/testsuite/g++.dg/lookup/pr77549.C Normal file
View file

@ -0,0 +1,76 @@
// PR c++/77549
// { dg-do compile }
struct A
{
static int x;
};
void
f1 ()
{
using ::A;
x; // { dg-error "'x' was not declared in this scope" }
}
namespace N
{
int bar;
}
void
f2 ()
{
using N::bar;
baz++; // { dg-error "'baz' was not declared in this scope" }
} // { dg-message "note: suggested alternative: 'bar'" "" { target *-*-* } 25 }
int
bar ()
{
return 0;
}
namespace M
{
int
bar ()
{
return 0;
}
}
void
f3 ()
{
using M::bar;
baz (); // { dg-error "'baz' was not declared in this scope" }
} // { dg-message "note: suggested alternative: 'bar'" "" { target *-*-* } 47 }
namespace O
{
int
foo ()
{
return 0;
}
}
namespace P
{
int
bar ()
{
return 0;
}
}
void
f4 ()
{
using O::foo;
using P::bar;
fooo (); // { dg-error "'fooo' was not declared in this scope" }
// { dg-message "note: suggested alternative: 'foo'" "" { target *-*-* } 73 }
baz (); // { dg-error "'baz' was not declared in this scope" }
} // { dg-message "note: suggested alternative: 'bar'" "" { target *-*-* } 75 }