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authorHarald Anlauf <anlauf@gmx.de>2020-06-27 14:56:33 +0200
committerHarald Anlauf <anlauf@gmx.de>2020-06-27 14:57:28 +0200
commit3cbc0fb39c84ae0a51a9a88649dccd105bf17d6e (patch)
tree71173edd7df0127465dcec352cf76c90cbf1e446
parentfc36b97af05ef74b0889ba49090c2f52f00e0e77 (diff)
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PR fortran/95881 - ICE in resolve_symbol, at fortran/resolve.c:15175
Avoid NULL pointer dereference. gcc/fortran/ PR fortran/95881 * resolve.c (resolve_symbol): Avoid NULL pointer dereference.
-rw-r--r--gcc/fortran/resolve.c1
-rw-r--r--gcc/testsuite/gfortran.dg/pr95881.f9011
2 files changed, 12 insertions, 0 deletions
diff --git a/gcc/fortran/resolve.c b/gcc/fortran/resolve.c
index 6fa34ca..f3e8ffc 100644
--- a/gcc/fortran/resolve.c
+++ b/gcc/fortran/resolve.c
@@ -15170,6 +15170,7 @@ resolve_symbol (gfc_symbol *sym)
if (flag_coarray == GFC_FCOARRAY_LIB && sym->ts.type == BT_CLASS
&& sym->ts.u.derived && CLASS_DATA (sym)
&& CLASS_DATA (sym)->attr.codimension
+ && CLASS_DATA (sym)->ts.u.derived
&& (CLASS_DATA (sym)->ts.u.derived->attr.alloc_comp
|| CLASS_DATA (sym)->ts.u.derived->attr.pointer_comp))
{
diff --git a/gcc/testsuite/gfortran.dg/pr95881.f90 b/gcc/testsuite/gfortran.dg/pr95881.f90
new file mode 100644
index 0000000..9f17176
--- /dev/null
+++ b/gcc/testsuite/gfortran.dg/pr95881.f90
@@ -0,0 +1,11 @@
+! { dg-do compile }
+! { dg-options "-fcoarray=lib" }
+! PR fortran/95881 - ICE in resolve_symbol, at fortran/resolve.c:15175
+
+program p
+ type t
+ real, allocatable :: a[:]
+ end type t
+ class(t) :: x ! { dg-error "must be dummy, allocatable or pointer" }
+ allocate (x%a[*])
+end