[gcc r15-2882] Fortran: Fix coarray in associate not linking [PR85510]

[Andre Vehreschild via Gcc-cvs]

https://gcc.gnu.org/g:8d8db21eb726b785782f4a41ad85a0d4be63068a

commit r15-2882-g8d8db21eb726b785782f4a41ad85a0d4be63068a
Author: Andre Vehreschild <ve...@gcc.gnu.org>
Date:   Mon Jul 22 15:31:37 2024 +0200

    Fortran: Fix coarray in associate not linking [PR85510]
    
            PR fortran/85510
    
    gcc/fortran/ChangeLog:
    
            * resolve.cc (resolve_variable): Mark the variable as host
            associated only, when it is not in an associate block.
            * trans-decl.cc (generate_coarray_init): Remove incorrect unused
            flag on parameter.
    
    gcc/testsuite/ChangeLog:
    
            * gfortran.dg/coarray/pr85510.f90: New test.

Diff:
---
 gcc/fortran/resolve.cc                        | 10 ++++++----
 gcc/fortran/trans-decl.cc                     |  2 +-
 gcc/testsuite/gfortran.dg/coarray/pr85510.f90 | 19 +++++++++++++++++++
 3 files changed, 26 insertions(+), 5 deletions(-)

diff --git a/gcc/fortran/resolve.cc b/gcc/fortran/resolve.cc
index eb3085a05ca2..8e88aac2fe0e 100644
--- a/gcc/fortran/resolve.cc
+++ b/gcc/fortran/resolve.cc
@@ -6114,10 +6114,12 @@ resolve_variable (gfc_expr *e)
   /* If a symbol has been host_associated mark it.  This is used latter,
      to identify if aliasing is possible via host association.  */
   if (sym->attr.flavor == FL_VARIABLE
-       && gfc_current_ns->parent
-       && (gfc_current_ns->parent == sym->ns
-             || (gfc_current_ns->parent->parent
-                   && gfc_current_ns->parent->parent == sym->ns)))
+      && (!sym->ns->code || sym->ns->code->op != EXEC_BLOCK
+         || !sym->ns->code->ext.block.assoc)
+      && gfc_current_ns->parent
+      && (gfc_current_ns->parent == sym->ns
+         || (gfc_current_ns->parent->parent
+             && gfc_current_ns->parent->parent == sym->ns)))
     sym->attr.host_assoc = 1;
 
   if (gfc_current_ns->proc_name
diff --git a/gcc/fortran/trans-decl.cc b/gcc/fortran/trans-decl.cc
index ca6a515a1800..6692ac7ef4c3 100644
--- a/gcc/fortran/trans-decl.cc
+++ b/gcc/fortran/trans-decl.cc
@@ -5950,7 +5950,7 @@ generate_coarray_sym_init (gfc_symbol *sym)
    coarrays.  */
 
 static void
-generate_coarray_init (gfc_namespace * ns __attribute((unused)))
+generate_coarray_init (gfc_namespace *ns)
 {
   tree fndecl, tmp, decl, save_fn_decl;
 
diff --git a/gcc/testsuite/gfortran.dg/coarray/pr85510.f90 
b/gcc/testsuite/gfortran.dg/coarray/pr85510.f90
new file mode 100644
index 000000000000..c6777cad6ed1
--- /dev/null
+++ b/gcc/testsuite/gfortran.dg/coarray/pr85510.f90
@@ -0,0 +1,19 @@
+!{ dg-do run }
+
+! Contributed by Damian Rouson  <damian@archaeologic.codes>
+! Check that PR fortran/85510 links.
+
+module foo
+contains
+  subroutine bar()
+    integer, save :: i[*] = 1
+    associate(n=>1)
+      if (i[1] /= 1) stop 1
+    end associate
+  end subroutine
+end module
+
+use foo
+call bar()
+end
+