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| author | Alexander Ivchenko <alexander.ivchenko@intel.com> | 2013-07-30 15:19:17 +0400 |
|---|---|---|
| committer | Alexander Ivchenko <alexander.ivchenko@intel.com> | 2013-07-30 15:23:17 +0400 |
| commit | 15ba1ff9c0885836175afdcd03701e5a3e514ae1 (patch) | |
| tree | b90aeb921c0fc84b3b089a2c645bb58b6d2340c4 /gcc-4.8 | |
| parent | e5dc6737fa71fae7080009704945d1c5e3480d30 (diff) | |
| download | toolchain_gcc-15ba1ff9c0885836175afdcd03701e5a3e514ae1.tar.gz toolchain_gcc-15ba1ff9c0885836175afdcd03701e5a3e514ae1.tar.bz2 toolchain_gcc-15ba1ff9c0885836175afdcd03701e5a3e514ae1.zip | |
[4.8] Fix ICE on g++.dg/cpp0x/lambda/lambda-defarg3.C.
Backport the fix in r201317
2013-07-29 Jason Merrill <jason@redhat.com>
* mangle.c (write_name): Check for null context.
(write_unscoped_name): Allow PARM_DECL context.
Change-Id: I4f1e9c2ddc01766818562648b6e905ef33c0de50
Signed-off-by: Alexander Ivchenko <alexander.ivchenko@intel.com>
Diffstat (limited to 'gcc-4.8')
| -rw-r--r-- | gcc-4.8/gcc/cp/mangle.c | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/gcc-4.8/gcc/cp/mangle.c b/gcc-4.8/gcc/cp/mangle.c index 7210571d2..da464606b 100644 --- a/gcc-4.8/gcc/cp/mangle.c +++ b/gcc-4.8/gcc/cp/mangle.c @@ -794,13 +794,14 @@ write_name (tree decl, const int ignore_local_scope) context = decl_mangling_context (decl); + gcc_assert (context != NULL_TREE); + /* A decl in :: or ::std scope is treated specially. The former is mangled using <unscoped-name> or <unscoped-template-name>, the latter with a special substitution. Also, a name that is directly in a local function scope is also mangled with <unscoped-name> rather than a full <nested-name>. */ - if (context == NULL - || context == global_namespace + if (context == global_namespace || DECL_NAMESPACE_STD_P (context) || (ignore_local_scope && (TREE_CODE (context) == FUNCTION_DECL @@ -833,10 +834,10 @@ write_name (tree decl, const int ignore_local_scope) directly in that function's scope, either decl or one of its enclosing scopes. */ tree local_entity = decl; - while (context != NULL && context != global_namespace) + while (context != global_namespace) { /* Make sure we're always dealing with decls. */ - if (context != NULL && TYPE_P (context)) + if (TYPE_P (context)) context = TYPE_NAME (context); /* Is this a function? */ if (TREE_CODE (context) == FUNCTION_DECL @@ -879,9 +880,10 @@ write_unscoped_name (const tree decl) else { /* If not, it should be either in the global namespace, or directly - in a local function scope. */ + in a local function scope. A lambda can also be mangled in the + scope of a default argument. */ gcc_assert (context == global_namespace - || context == NULL + || TREE_CODE (context) == PARM_DECL || TREE_CODE (context) == FUNCTION_DECL); write_unqualified_name (decl); |