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| author | Harald Anlauf <anlauf@gmx.de> | 2022-03-29 22:12:15 +0200 |
|---|---|---|
| committer | Harald Anlauf <anlauf@gmx.de> | 2022-03-29 22:12:15 +0200 |
| commit | 69db6e7f4e1d07bf8f33e93a29139cc16c1e0a2f (patch) | |
| tree | 4504994de43298c72445021d9de0ed3f3dbe3f21 /gcc | |
| parent | eb59ddf57fbc4bf1d2deaf0665ede4aa37181069 (diff) | |
| download | gcc-69db6e7f4e1d07bf8f33e93a29139cc16c1e0a2f.zip gcc-69db6e7f4e1d07bf8f33e93a29139cc16c1e0a2f.tar.gz gcc-69db6e7f4e1d07bf8f33e93a29139cc16c1e0a2f.tar.bz2 | |
Fortran: avoid NULL pointer dereference checking elemental procedure args
gcc/fortran/ChangeLog:
PR fortran/104571
* resolve.cc (resolve_elemental_actual): Avoid NULL pointer
dereference.
gcc/testsuite/ChangeLog:
PR fortran/104571
* gfortran.dg/pr104571.f90: New test.
Co-authored-by: Steven G. Kargl <kargl@gcc.gnu.org>
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/fortran/resolve.cc | 5 | ||||
| -rw-r--r-- | gcc/testsuite/gfortran.dg/pr104571.f90 | 12 |
2 files changed, 15 insertions, 2 deletions
diff --git a/gcc/fortran/resolve.cc b/gcc/fortran/resolve.cc index 2907677..21c8797 100644 --- a/gcc/fortran/resolve.cc +++ b/gcc/fortran/resolve.cc @@ -2397,8 +2397,9 @@ resolve_elemental_actual (gfc_expr *expr, gfc_code *c) if (rank > 0 && esym && expr == NULL) for (eformal = esym->formal, arg = arg0; arg && eformal; arg = arg->next, eformal = eformal->next) - if ((eformal->sym->attr.intent == INTENT_OUT - || eformal->sym->attr.intent == INTENT_INOUT) + if (eformal->sym + && (eformal->sym->attr.intent == INTENT_OUT + || eformal->sym->attr.intent == INTENT_INOUT) && arg->expr && arg->expr->rank == 0) { gfc_error ("Actual argument at %L for INTENT(%s) dummy %qs of " diff --git a/gcc/testsuite/gfortran.dg/pr104571.f90 b/gcc/testsuite/gfortran.dg/pr104571.f90 new file mode 100644 index 0000000..9a6f2d0 --- /dev/null +++ b/gcc/testsuite/gfortran.dg/pr104571.f90 @@ -0,0 +1,12 @@ +! { dg-do compile } +! { dg-options "-std=legacy" } +! PR fortran/104571 - ICE in resolve_elemental_actual +! Contributed by G.Steinmetz + +program p + real :: x(3) + call g(x) ! { dg-error "Missing alternate return" } +contains + elemental subroutine g(*) ! { dg-error "Alternate return specifier" } + end +end |