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| author | Douglas Gregor <doug.gregor@gmail.com> | 2008-09-05 17:04:12 +0000 |
|---|---|---|
| committer | Doug Gregor <dgregor@gcc.gnu.org> | 2008-09-05 17:04:12 +0000 |
| commit | 7aa4a1dfa98e1368ba4cb05b5bd19f9c96def4fb (patch) | |
| tree | 0d3758b38d9d3094da6d985f0291afcca7771e37 /gcc/cp/tree.c | |
| parent | 37fbe8a344b5ab7e3e77499176d0581e4187929c (diff) | |
| download | gcc-7aa4a1dfa98e1368ba4cb05b5bd19f9c96def4fb.zip gcc-7aa4a1dfa98e1368ba4cb05b5bd19f9c96def4fb.tar.gz gcc-7aa4a1dfa98e1368ba4cb05b5bd19f9c96def4fb.tar.bz2 | |
re PR c++/37342 (same canonical type node for different types void (Asm::*)(std::ostream&) and void (Asm::* const)(std::ostream&))
2008-09-05 Douglas Gregor <doug.gregor@gmail.com>
PR c++/37342
* tree.c (cp_build_qualified_type_real): Deal with sharing of
TYPE_LANG_SPECIFIC in the canonical types of pointer-to-method
types.
2008-09-05 Douglas Gregor <doug.gregor@gmail.com>
PR c++/37342
* g++.dg/other/canon-37342.C: New.
From-SVN: r140037
Diffstat (limited to 'gcc/cp/tree.c')
| -rw-r--r-- | gcc/cp/tree.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/gcc/cp/tree.c b/gcc/cp/tree.c index f9df932..9126763 100644 --- a/gcc/cp/tree.c +++ b/gcc/cp/tree.c @@ -877,6 +877,17 @@ cp_build_qualified_type_real (tree type, && TYPE_LANG_SPECIFIC (result) == TYPE_LANG_SPECIFIC (type)) TYPE_LANG_SPECIFIC (result) = NULL; + /* We may also have ended up building a new copy of the canonical + type of a pointer-to-method type, which could have the same + sharing problem described above. */ + if (TYPE_CANONICAL (result) != TYPE_CANONICAL (type) + && TREE_CODE (type) == POINTER_TYPE + && TREE_CODE (TREE_TYPE (type)) == METHOD_TYPE + && (TYPE_LANG_SPECIFIC (TYPE_CANONICAL (result)) + == TYPE_LANG_SPECIFIC (TYPE_CANONICAL (type)))) + TYPE_LANG_SPECIFIC (TYPE_CANONICAL (result)) = NULL; + + return result; } |