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C++ PATCH for more checking of DECL_MUTABLE_P
- From: Marek Polacek <polacek at redhat dot com>
- To: GCC Patches <gcc-patches at gcc dot gnu dot org>, Jason Merrill <jason at redhat dot com>
- Date: Sat, 10 Aug 2019 14:57:30 -0400
- Subject: C++ PATCH for more checking of DECL_MUTABLE_P
Some preparatory work before adding constinit. mutable is only appropriate for
FIELD_DECLs (when they're not static), but we've never made sure that we're not
setting DECL_MUTABLE_P on a different _DECL. I mean to use DECL_LANG_FLAG_0 in
a VAR_DECL for DECL_DECLARED_CONSTINIT_P.
Bootstrapped/regtested on x86_64-linux, ok for trunk?
2019-08-10 Marek Polacek <polacek@redhat.com>
* cp-tree.h (DECL_MUTABLE_P): Use FIELD_DECL_CHECK.
diff --git gcc/cp/cp-tree.h gcc/cp/cp-tree.h
index 72ee1d61e97..3b823a6ea0b 100644
--- gcc/cp/cp-tree.h
+++ gcc/cp/cp-tree.h
@@ -3065,9 +3066,9 @@ struct GTY(()) lang_decl {
(DECL_NONSTATIC_MEMBER_FUNCTION_P (NODE) \
|| TREE_CODE (NODE) == FIELD_DECL)
-/* Nonzero for _DECL means that this member object type
+/* Nonzero for a FIELD_DECL means that this member object type
is mutable. */
-#define DECL_MUTABLE_P(NODE) (DECL_LANG_FLAG_0 (NODE))
+#define DECL_MUTABLE_P(NODE) (DECL_LANG_FLAG_0 (FIELD_DECL_CHECK (NODE)))
/* Nonzero for _DECL means that this constructor or conversion function is
non-converting. */