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| author | Harald Anlauf <anlauf@gmx.de> | 2022-03-09 21:58:26 +0100 |
|---|---|---|
| committer | Harald Anlauf <anlauf@gmx.de> | 2022-03-09 21:58:26 +0100 |
| commit | 22015e77d3e45306077396b9de8a8a28bb67fb20 (patch) | |
| tree | d667680b53824e538d8c58b0ad3ec1f7713337b7 /gcc | |
| parent | e2607d71e5e371c0c006555e0531ea1ff5ac416c (diff) | |
| download | gcc-22015e77d3e45306077396b9de8a8a28bb67fb20.zip gcc-22015e77d3e45306077396b9de8a8a28bb67fb20.tar.gz gcc-22015e77d3e45306077396b9de8a8a28bb67fb20.tar.bz2 | |
Fortran: improve error recovery on invalid array section
gcc/fortran/ChangeLog:
PR fortran/104849
* expr.cc (find_array_section): Avoid NULL pointer dereference on
invalid array section.
gcc/testsuite/ChangeLog:
PR fortran/104849
* gfortran.dg/pr104849.f90: New test.
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/fortran/expr.cc | 4 | ||||
| -rw-r--r-- | gcc/testsuite/gfortran.dg/pr104849.f90 | 9 |
2 files changed, 12 insertions, 1 deletions
diff --git a/gcc/fortran/expr.cc b/gcc/fortran/expr.cc index c9c0ba4..86d61fe 100644 --- a/gcc/fortran/expr.cc +++ b/gcc/fortran/expr.cc @@ -1594,7 +1594,9 @@ find_array_section (gfc_expr *expr, gfc_ref *ref) { if ((begin && begin->expr_type != EXPR_CONSTANT) || (finish && finish->expr_type != EXPR_CONSTANT) - || (step && step->expr_type != EXPR_CONSTANT)) + || (step && step->expr_type != EXPR_CONSTANT) + || (!begin && !lower) + || (!finish && !upper)) { t = false; goto cleanup; diff --git a/gcc/testsuite/gfortran.dg/pr104849.f90 b/gcc/testsuite/gfortran.dg/pr104849.f90 new file mode 100644 index 0000000..ae221b5 --- /dev/null +++ b/gcc/testsuite/gfortran.dg/pr104849.f90 @@ -0,0 +1,9 @@ +! { dg-do compile } +! PR fortran/104849 - ICE in find_array_section +! Contributed by G.Steinmetz + +program p + integer, parameter :: a(:) = [1, 2] ! { dg-error "deferred shape" } + integer :: x(2) + data x /a(:)/ ! { dg-error "Invalid" } +end |