From: Thomas Koenig <tkoenig@gcc.gnu.org>
Date: Sun, 8 Dec 2019 13:42:42 +0000 (+0000)
Subject: Error on Associate with a program.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=c212316b4a774f8283f097d46e56fb8256502304;p=gcc.git

Error on Associate with a program.

2018-12-08  Thomas Koenig  <tkoenig@gcc.gnu.org>

    PR fortran/92780
    * resolve.c (resolve_assoc_var): Issue error if the associating
    entity is a program.

2018-12-08  Thomas Koenig  <tkoenig@gcc.gnu.org>

    PR fortran/92780
    * gfortran.dg/associate_50.f90: New test.

From-SVN: r279088
---

diff --git a/gcc/fortran/ChangeLog b/gcc/fortran/ChangeLog
index 5265c2c3794..c3a4c3adcdb 100644
--- a/gcc/fortran/ChangeLog
+++ b/gcc/fortran/ChangeLog
@@ -1,3 +1,9 @@
+2018-12-08  Thomas Koenig  <tkoenig@gcc.gnu.org>
+
+	PR fortran/92780
+	* resolve.c (resolve_assoc_var): Issue error if the associating
+	entity is a program.
+
 2018-12-08  Thomas Koenig  <tkoenig@gcc.gnu.org>
 
 	PR fortran/92764
diff --git a/gcc/fortran/resolve.c b/gcc/fortran/resolve.c
index 278dad363fd..b437c595500 100644
--- a/gcc/fortran/resolve.c
+++ b/gcc/fortran/resolve.c
@@ -8842,6 +8842,12 @@ resolve_assoc_var (gfc_symbol* sym, bool resolve_target)
 
       gcc_assert (target->symtree);
       tsym = target->symtree->n.sym;
+      if (tsym->attr.flavor == FL_PROGRAM)
+	{
+	  gfc_error ("Associating entity %qs at %L is a PROGRAM",
+		     tsym->name, &target->where);
+	  return;
+	}
 
       sym->attr.asynchronous = tsym->attr.asynchronous;
       sym->attr.volatile_ = tsym->attr.volatile_;
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index d2f9b47a3b6..8e8e1e9b532 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2018-12-08  Thomas Koenig  <tkoenig@gcc.gnu.org>
+
+	PR fortran/92780
+	* gfortran.dg/associate_50.f90: New test.
+
 2018-12-08  Thomas Koenig  <tkoenig@gcc.gnu.org>
 
 	PR fortran/92764
diff --git a/gcc/testsuite/gfortran.dg/associate_50.f90 b/gcc/testsuite/gfortran.dg/associate_50.f90
new file mode 100644
index 00000000000..d759db59b29
--- /dev/null
+++ b/gcc/testsuite/gfortran.dg/associate_50.f90
@@ -0,0 +1,8 @@
+! { dg-do compile }
+! PR 92780 - this used to ICE instead of being rejected.
+! Test case by Gerhard Steinmetz.
+
+program p
+  associate (y => p) ! { dg-error "is a PROGRAM" }
+  end associate
+end program p