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| author | Harald Anlauf <anlauf@gmx.de> | 2020-07-06 18:58:23 +0200 |
|---|---|---|
| committer | Harald Anlauf <anlauf@gmx.de> | 2020-07-06 19:00:10 +0200 |
| commit | f2151227dfe90a5fe73297c370786be98b0b090f (patch) | |
| tree | 78c1d2ae22e21a6a15cd25c0cda8e1a865230a46 /gcc/fortran/resolve.c | |
| parent | 824084e72e388f81015e7f67922c75f50741355a (diff) | |
| download | gcc-f2151227dfe90a5fe73297c370786be98b0b090f.zip gcc-f2151227dfe90a5fe73297c370786be98b0b090f.tar.gz gcc-f2151227dfe90a5fe73297c370786be98b0b090f.tar.bz2 | |
PR fortran/95980 - ICE on using sync images with -fcheck=bounds
In SELECT TYPE, the argument may be an incorrectly specified unlimited
polymorphic variable. Avoid a NULL pointer dereference for clean error
recovery.
gcc/fortran/
PR fortran/95980
* match.c (copy_ts_from_selector_to_associate, build_class_sym):
Distinguish between unlimited polymorphic and ordinary variables
to avoid NULL pointer dereference.
* resolve.c (resolve_select_type):
Distinguish between unlimited polymorphic and ordinary variables
to avoid NULL pointer dereference.
Diffstat (limited to 'gcc/fortran/resolve.c')
| -rw-r--r-- | gcc/fortran/resolve.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/gcc/fortran/resolve.c b/gcc/fortran/resolve.c index e8ba487..223dccc 100644 --- a/gcc/fortran/resolve.c +++ b/gcc/fortran/resolve.c @@ -9241,7 +9241,8 @@ resolve_select_type (gfc_code *code, gfc_namespace *old_ns) { if (code->expr1->symtree->n.sym->attr.untyped) code->expr1->symtree->n.sym->ts = code->expr2->ts; - selector_type = CLASS_DATA (code->expr2)->ts.u.derived; + selector_type = CLASS_DATA (code->expr2) + ? CLASS_DATA (code->expr2)->ts.u.derived : code->expr2->ts.u.derived; } if (code->expr2->rank && CLASS_DATA (code->expr1)->as) |