From 81072bab8d1e48ee83d9711dcb559ea1e019b351 Mon Sep 17 00:00:00 2001 From: Mark Eggleston Date: Thu, 11 Jun 2020 11:05:40 +0100 Subject: [PATCH] Fortran : ICE in gfc_check_pointer_assign PR95612 Output an error if the right hand value is a zero sized array or does not have a symbol tree otherwise continue checking. 2020-07-14 Steven G. Kargl gcc/fortran/ PR fortran/95612 * expr.c (gfc_check_pointer_assigb): Output an error if rvalue is a zero sized array or output an error if rvalue doesn't have a symbol tree. 2020-07-14 Mark Eggleston gcc/testsuite/ PR fortran/95612 * gfortran.dg/pr95612.f90: New test. --- gcc/fortran/expr.c | 15 ++++++++++++++- gcc/testsuite/gfortran.dg/pr95612.f90 | 7 +++++++ 2 files changed, 21 insertions(+), 1 deletion(-) create mode 100644 gcc/testsuite/gfortran.dg/pr95612.f90 diff --git a/gcc/fortran/expr.c b/gcc/fortran/expr.c index 5bef65df862..6707ca550a0 100644 --- a/gcc/fortran/expr.c +++ b/gcc/fortran/expr.c @@ -4271,7 +4271,20 @@ gfc_check_pointer_assign (gfc_expr *lvalue, gfc_expr *rvalue, gfc_symbol *sym; bool target; - gcc_assert (rvalue->symtree); + if (gfc_is_size_zero_array (rvalue)) + { + gfc_error ("Zero-sized array detected at %L where an entity with " + "the TARGET attribute is expected", &rvalue->where); + return false; + } + else if (!rvalue->symtree) + { + gfc_error ("Pointer assignment target in initialization expression " + "does not have the TARGET attribute at %L", + &rvalue->where); + return false; + } + sym = rvalue->symtree->n.sym; if (sym->ts.type == BT_CLASS && sym->attr.class_ok) diff --git a/gcc/testsuite/gfortran.dg/pr95612.f90 b/gcc/testsuite/gfortran.dg/pr95612.f90 new file mode 100644 index 00000000000..b3cac8c1d81 --- /dev/null +++ b/gcc/testsuite/gfortran.dg/pr95612.f90 @@ -0,0 +1,7 @@ +! { dg-do compile } + +program p + integer, pointer :: y(:) => shape(1) ! { dg-error "Zero-sized array detected at .1. where an entity with the TARGET attribute is expected" } + integer, pointer :: z(:) => shape([1]) ! { dg-error "Pointer assignment target in initialization expression does not have the TARGET attribute at .1." } +end + -- 2.30.2