From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 2071) id 60F353858D28; Wed, 15 Feb 2023 21:45:59 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 60F353858D28 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1676497559; bh=ZysM6jNgHA8Lc5SdyOnpEMuNVUIBdolAe/ALE7vgLYA=; h=From:To:Subject:Date:From; b=VRalPwCJpJnuSYoV6BhaNY8CqtPqy9zwoCMF63XHuOxmjsr4bso393yp+DaMIZ3fo jesTV55YrH0AzzBIcRZjaLySKrEdx9BzWIFxBWq7AX/01FTfTIQstKIUFSJsOVNEkY MJ87rMm50yUA7297MpMoV9LXmUWpEkCIkFg1SLpE= MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="utf-8" From: Harald Anlauf To: gcc-cvs@gcc.gnu.org Subject: [gcc r13-6067] Fortran: error recovery on checking procedure argument intent [PR103608] X-Act-Checkin: gcc X-Git-Author: Steve Kargl X-Git-Refname: refs/heads/master X-Git-Oldrev: a418129273725fd02e881e6fb5e0877287a1356c X-Git-Newrev: c75cbeba81e5b4737a9ab7dd28cce650965535a9 Message-Id: <20230215214559.60F353858D28@sourceware.org> Date: Wed, 15 Feb 2023 21:45:59 +0000 (GMT) List-Id: https://gcc.gnu.org/g:c75cbeba81e5b4737a9ab7dd28cce650965535a9 commit r13-6067-gc75cbeba81e5b4737a9ab7dd28cce650965535a9 Author: Steve Kargl Date: Wed Feb 15 22:40:37 2023 +0100 Fortran: error recovery on checking procedure argument intent [PR103608] gcc/fortran/ChangeLog: PR fortran/103608 * frontend-passes.cc (do_intent): Catch NULL pointer dereference on reference to invalid formal argument. gcc/testsuite/ChangeLog: PR fortran/103608 * gfortran.dg/pr103608.f90: New test. Diff: --- gcc/fortran/frontend-passes.cc | 3 ++- gcc/testsuite/gfortran.dg/pr103608.f90 | 14 ++++++++++++++ 2 files changed, 16 insertions(+), 1 deletion(-) diff --git a/gcc/fortran/frontend-passes.cc b/gcc/fortran/frontend-passes.cc index 1cbc63016da..02fcb41dbc4 100644 --- a/gcc/fortran/frontend-passes.cc +++ b/gcc/fortran/frontend-passes.cc @@ -3049,7 +3049,8 @@ do_intent (gfc_expr **e) do_sym = dl->ext.iterator->var->symtree->n.sym; if (a->expr && a->expr->symtree - && a->expr->symtree->n.sym == do_sym) + && a->expr->symtree->n.sym == do_sym + && f->sym) { if (f->sym->attr.intent == INTENT_OUT) gfc_error_now ("Variable %qs at %L set to undefined value " diff --git a/gcc/testsuite/gfortran.dg/pr103608.f90 b/gcc/testsuite/gfortran.dg/pr103608.f90 new file mode 100644 index 00000000000..5c37cb78dc6 --- /dev/null +++ b/gcc/testsuite/gfortran.dg/pr103608.f90 @@ -0,0 +1,14 @@ +! { dg-do compile } +! { dg-options "-w" } +! PR fortran/103608 - ICE in do_intent +! Contributed by G.Steinmetz + +program p + implicit none + integer :: i + integer :: x ! { dg-error "Alternate return specifier" } + x(*) = 0 + do i = 1, 2 + print *, x(i) ! { dg-error "Missing alternate return specifier" } + end do +end