c/
* c-typeck.c (c_finish_return): Distinguish between label and variable
when warning about returning local address.
cp/
* typeck.c (maybe_warn_about_returning_address_of_local): Distinguish
between label and variable when warning about returning local address.
testsuite/
* c-c++-common/pr43395.c: New test.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@209973
138bc75d-0d04-0410-961f-
82ee72b054a4
2014-05-01 Marek Polacek <polacek@redhat.com>
+ PR c/43395
+ * c-typeck.c (c_finish_return): Distinguish between label and variable
+ when warning about returning local address.
+
+2014-05-01 Marek Polacek <polacek@redhat.com>
+
PR c/29467
* c-decl.c (declspecs_add_type): Pedwarn if boolean types are used
in C89 mode.
&& DECL_CONTEXT (inner) == current_function_decl)
warning_at (loc,
OPT_Wreturn_local_addr, "function returns address "
- "of local variable");
+ "of %s", TREE_CODE (inner) == LABEL_DECL
+ ? "label" : "local variable");
break;
default:
+2014-05-01 Marek Polacek <polacek@redhat.com>
+
+ PR c/43395
+ * typeck.c (maybe_warn_about_returning_address_of_local): Distinguish
+ between label and variable when warning about returning local address.
+
2014-04-30 Jason Merrill <jason@redhat.com>
PR c++/60980
warning (OPT_Wreturn_local_addr, "reference to local variable %q+D returned",
whats_returned);
else
- warning (OPT_Wreturn_local_addr, "address of local variable %q+D returned",
- whats_returned);
+ warning (OPT_Wreturn_local_addr, "address of %s %q+D returned",
+ TREE_CODE (whats_returned) == LABEL_DECL
+ ? "label" : "local variable", whats_returned);
return;
}
}
+2014-05-01 Marek Polacek <polacek@redhat.com>
+
+ PR c/43395
+ * c-c++-common/pr43395.c: New test.
+
2014-05-01 Yuri Rumyantsev <ysrumyan@gmail.com>
* gcc.dg/cond-reduc-1.c: New test.
--- /dev/null
+/* PR c/43395 */
+/* { dg-do compile } */
+
+void *
+foo (void)
+{
+lab:
+ return &&lab;
+/* { dg-warning "function returns address of label" "" { target c } 8 } */
+/* { dg-warning "address of label" "" { target c++ } 7 } */
+}
+
+void *
+bar (void)
+{
+ __label__ lab;
+lab:
+ return &&lab;
+/* { dg-warning "function returns address of label" "" { target c } 18 } */
+/* { dg-warning "address of label" "" { target c++ } 17 } */
+}
+
+void *
+baz (void)
+{
+ int i;
+ return &i;
+/* { dg-warning "function returns address of local variable" "" { target c } 27 } */
+/* { dg-warning "address of local variable" "" { target c++ } 26 } */
+}