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| author | Harald Anlauf <anlauf@gmx.de> | 2020-06-28 16:24:15 +0200 |
|---|---|---|
| committer | Giuliano Belinassi <giuliano.belinassi@usp.br> | 2020-08-17 13:15:13 -0300 |
| commit | a4f7d63e1440ca169e57d95f635ab6465565fbdf (patch) | |
| tree | f89a54cdac49e08a90cf4ac5adb801697d88fc51 /gcc | |
| parent | afe27a25586e24f7ac0204090a835e2109b54cde (diff) | |
| download | gcc-a4f7d63e1440ca169e57d95f635ab6465565fbdf.zip gcc-a4f7d63e1440ca169e57d95f635ab6465565fbdf.tar.gz gcc-a4f7d63e1440ca169e57d95f635ab6465565fbdf.tar.bz2 | |
PR fortran/95340 - ICE in gfc_match_select_rank, at fortran/match.c:6690
Do not dereference NULL pointer when querying array shape of possibly
improperly delared variable.
gcc/fortran/
PR fortran/95340
* match.c (gfc_match_select_rank): Do not dereference NULL pointer.
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/fortran/match.c | 3 | ||||
| -rw-r--r-- | gcc/testsuite/gfortran.dg/pr95340.f90 | 10 |
2 files changed, 12 insertions, 1 deletions
diff --git a/gcc/fortran/match.c b/gcc/fortran/match.c index b011634..db5174f 100644 --- a/gcc/fortran/match.c +++ b/gcc/fortran/match.c @@ -6695,7 +6695,8 @@ gfc_match_select_rank (void) if (expr1->symtree) { sym = expr1->symtree->n.sym; - as = sym->ts.type == BT_CLASS ? CLASS_DATA (sym)->as : sym->as; + as = (sym->ts.type == BT_CLASS + && CLASS_DATA (sym)) ? CLASS_DATA (sym)->as : sym->as; } if (expr1->expr_type != EXPR_VARIABLE diff --git a/gcc/testsuite/gfortran.dg/pr95340.f90 b/gcc/testsuite/gfortran.dg/pr95340.f90 new file mode 100644 index 0000000..edcdc93 --- /dev/null +++ b/gcc/testsuite/gfortran.dg/pr95340.f90 @@ -0,0 +1,10 @@ +! { dg-do compile } +! PR fortran/95340 - ICE in gfc_match_select_rank, at fortran/match.c:6690 + +program p + type t + end type t + class(t) :: z ! { dg-error "must be dummy, allocatable or pointer" } + select rank (z) ! { dg-error "must be an assumed rank variable" } + end select ! { dg-error "Expecting END PROGRAM" } +end |