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| author | Martin Jambor <mjambor@suse.cz> | 2010-06-28 17:42:01 +0200 |
|---|---|---|
| committer | Martin Jambor <jamborm@gcc.gnu.org> | 2010-06-28 17:42:01 +0200 |
| commit | 621f418948dd050f09735532c098e46eaa1dfd69 (patch) | |
| tree | 745ee01b97de27435cfc7d6c86ecfc573129a1f0 /gcc/gimple-fold.c | |
| parent | fe2ef088e065f9e15311b221db3fcbf864dfb250 (diff) | |
| download | gcc-621f418948dd050f09735532c098e46eaa1dfd69.zip gcc-621f418948dd050f09735532c098e46eaa1dfd69.tar.gz gcc-621f418948dd050f09735532c098e46eaa1dfd69.tar.bz2 | |
re PR c++/44535 (g++ -O[ 23] generates undefined symbol)
2010-06-28 Martin Jambor <mjambor@suse.cz>
PR c++/44535
* gimple-fold.c (get_first_base_binfo_with_virtuals): New function.
(gimple_get_relevant_ref_binfo): Use get_first_base_binfo_with_virtuals
instead of BINFO_BASE_BINFO.
* testsuite/g++.dg/torture/pr44535.C: New test.
From-SVN: r161498
Diffstat (limited to 'gcc/gimple-fold.c')
| -rw-r--r-- | gcc/gimple-fold.c | 20 |
1 files changed, 18 insertions, 2 deletions
diff --git a/gcc/gimple-fold.c b/gcc/gimple-fold.c index 8fb604d..491611f 100644 --- a/gcc/gimple-fold.c +++ b/gcc/gimple-fold.c @@ -1476,6 +1476,22 @@ gimple_fold_builtin (gimple stmt) return result; } +/* Return the first of the base binfos of BINFO that has virtual functions. */ + +static tree +get_first_base_binfo_with_virtuals (tree binfo) +{ + int i; + tree base_binfo; + + for (i = 0; BINFO_BASE_ITERATE (binfo, i, base_binfo); i++) + if (BINFO_VIRTUALS (base_binfo)) + return base_binfo; + + return NULL_TREE; +} + + /* Search for a base binfo of BINFO that corresponds to TYPE and return it if it is found or NULL_TREE if it is not. */ @@ -1531,8 +1547,8 @@ gimple_get_relevant_ref_binfo (tree ref, tree known_binfo) || BINFO_N_BASE_BINFOS (binfo) == 0) return NULL_TREE; - base_binfo = BINFO_BASE_BINFO (binfo, 0); - if (BINFO_TYPE (base_binfo) != TREE_TYPE (field)) + base_binfo = get_first_base_binfo_with_virtuals (binfo); + if (base_binfo && BINFO_TYPE (base_binfo) != TREE_TYPE (field)) { tree d_binfo; |