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| author | Harald Anlauf <anlauf@gmx.de> | 2022-09-02 21:07:26 +0200 |
|---|---|---|
| committer | Harald Anlauf <anlauf@gmx.de> | 2022-09-02 21:10:44 +0200 |
| commit | b6aa7d45b502c01f8703c8d2cee2690f9aa8e282 (patch) | |
| tree | 85f61aeae966c46ad0b9c608d10405ef39c7592d | |
| parent | 65c12e3894cac120c721c5d3fe94daa625ac8194 (diff) | |
| download | gcc-b6aa7d45b502c01f8703c8d2cee2690f9aa8e282.zip gcc-b6aa7d45b502c01f8703c8d2cee2690f9aa8e282.tar.gz gcc-b6aa7d45b502c01f8703c8d2cee2690f9aa8e282.tar.bz2 | |
Fortran: avoid NULL pointer dereference on invalid DATA constant [PR99349]
gcc/fortran/ChangeLog:
PR fortran/99349
* decl.cc (match_data_constant): Avoid NULL pointer dereference.
gcc/testsuite/ChangeLog:
PR fortran/99349
* gfortran.dg/pr99349.f90: New test.
Co-authored-by: Steven G. Kargl <kargl@gcc.gnu.org>
| -rw-r--r-- | gcc/fortran/decl.cc | 3 | ||||
| -rw-r--r-- | gcc/testsuite/gfortran.dg/pr99349.f90 | 9 |
2 files changed, 11 insertions, 1 deletions
diff --git a/gcc/fortran/decl.cc b/gcc/fortran/decl.cc index b640051..0f9b2ce 100644 --- a/gcc/fortran/decl.cc +++ b/gcc/fortran/decl.cc @@ -423,7 +423,8 @@ match_data_constant (gfc_expr **result) data-pointer-initialization compatible (7.5.4.6) with the initial data target; the data statement object is initially associated with the target. */ - if ((*result)->symtree->n.sym->attr.save + if ((*result)->symtree + && (*result)->symtree->n.sym->attr.save && (*result)->symtree->n.sym->attr.target) return m; gfc_free_expr (*result); diff --git a/gcc/testsuite/gfortran.dg/pr99349.f90 b/gcc/testsuite/gfortran.dg/pr99349.f90 new file mode 100644 index 0000000..e1f4628 --- /dev/null +++ b/gcc/testsuite/gfortran.dg/pr99349.f90 @@ -0,0 +1,9 @@ +! { dg-do compile } +! PR fortran/99349 - ICE in match_data_constant +! Contributed by G.Steinmetz + +function f() + logical, parameter :: a((1.)/0) = .true. ! { dg-error "Parameter array" } + integer :: b + data b /a%kind/ ! { dg-error "Syntax error" } +end |