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| author | Harald Anlauf <anlauf@gmx.de> | 2020-06-29 23:20:16 +0200 |
|---|---|---|
| committer | Giuliano Belinassi <giuliano.belinassi@usp.br> | 2020-08-17 13:15:26 -0300 |
| commit | 7d5230ada669a4fb611845e8e4c700cc81ea8493 (patch) | |
| tree | 1815d0dc91520720379edb92c36150e725a9cd82 | |
| parent | b164aff5fb6365151dc89e790b89bb67cca46400 (diff) | |
| download | gcc-7d5230ada669a4fb611845e8e4c700cc81ea8493.zip gcc-7d5230ada669a4fb611845e8e4c700cc81ea8493.tar.gz gcc-7d5230ada669a4fb611845e8e4c700cc81ea8493.tar.bz2 | |
PR fortran/95978 - ICE in gfc_match_data, at fortran/decl.c:731
Catch NULL pointer dereference on invalid DATA statement.
gcc/fortran/
PR fortran/95978
* decl.c (gfc_match_data): Avoid NULL pointer dereference.
| -rw-r--r-- | gcc/fortran/decl.c | 2 | ||||
| -rw-r--r-- | gcc/testsuite/gfortran.dg/pr95978.f90 | 10 |
2 files changed, 11 insertions, 1 deletions
diff --git a/gcc/fortran/decl.c b/gcc/fortran/decl.c index ac1f63f..f38def4 100644 --- a/gcc/fortran/decl.c +++ b/gcc/fortran/decl.c @@ -728,7 +728,7 @@ gfc_match_data (void) gfc_constructor *c; c = gfc_constructor_first (new_data->value->expr->value.constructor); for (; c; c = gfc_constructor_next (c)) - if (c->expr->ts.type == BT_BOZ) + if (c->expr && c->expr->ts.type == BT_BOZ) { gfc_error ("BOZ literal constant at %L cannot appear in a " "structure constructor", &c->expr->where); diff --git a/gcc/testsuite/gfortran.dg/pr95978.f90 b/gcc/testsuite/gfortran.dg/pr95978.f90 new file mode 100644 index 0000000..47bd706 --- /dev/null +++ b/gcc/testsuite/gfortran.dg/pr95978.f90 @@ -0,0 +1,10 @@ +! { dg-do compile } +! PR fortran/95978 - ICE in gfc_match_data, at fortran/decl.c:731 + +program p + type t + integer :: a + type(t), allocatable :: b + data c /t(1)/ ! { dg-error "Unexpected DATA statement" } + end type t +end |