Hi folks,
long time, no see. I was asked by Damian to do some Coarray stuff in gfortran
so here is the first step on fixing a bug. The issue at hand is, that the
coarray handling is not propagated correctly and later on the coarray-token
not generated/retrieved from the correct position leading to coarray programs to
crash/hang. This patch fixes at least the misbehavior reported in the PR. More
to come.
Regtests ok on FC31.x86_64. Ok for trunk?
Regards,
Andre
--
Andre Vehreschild * Email: vehre ad gmx dot de
gcc/fortran/ChangeLog:
2020-08-10 Andre Vehreschild <ve...@gcc.gnu.org>
PR fortran/93671
* trans-array.c (structure_alloc_comps): Keep caf-mode when applying to
components; get the caf_token correctly for allocated scalar components.
gcc/testsuite/ChangeLog:
2020-08-10 Andre Vehreschild <ve...@gcc.gnu.org>
PR fortran/93671
* gfortran.dg/coarray/pr93671.f90: New test.
diff --git a/gcc/fortran/trans-array.c b/gcc/fortran/trans-array.c
index 8f93b43bafb..7a1b2fc74c9 100644
--- a/gcc/fortran/trans-array.c
+++ b/gcc/fortran/trans-array.c
@@ -8627,14 +8627,13 @@ structure_alloc_comps (gfc_symbol * der_type, tree decl,
vref = gfc_build_array_ref (var, index, NULL);
- if ((purpose == COPY_ALLOC_COMP || purpose == COPY_ONLY_ALLOC_COMP)
- && !caf_enabled (caf_mode))
+ if (purpose == COPY_ALLOC_COMP || purpose == COPY_ONLY_ALLOC_COMP)
{
tmp = build_fold_indirect_ref_loc (input_location,
gfc_conv_array_data (dest));
dref = gfc_build_array_ref (tmp, index, NULL);
tmp = structure_alloc_comps (der_type, vref, dref, rank,
- COPY_ALLOC_COMP, 0, args);
+ COPY_ALLOC_COMP, caf_mode, args);
}
else
tmp = structure_alloc_comps (der_type, vref, NULL_TREE, rank, purpose,
@@ -9375,12 +9374,21 @@ structure_alloc_comps (gfc_symbol * der_type, tree decl,
else if (flag_coarray == GFC_FCOARRAY_LIB
&& caf_in_coarray (caf_mode))
{
- tree dst_tok = c->as ? gfc_conv_descriptor_token (dcmp)
- : fold_build3_loc (input_location,
- COMPONENT_REF,
- pvoid_type_node, dest,
- c->caf_token,
- NULL_TREE);
+ tree dst_tok;
+ if (c->as)
+ dst_tok = gfc_conv_descriptor_token (dcmp);
+ else
+ {
+ /* For a scalar allocatable component the caf_token is
+ the next component. */
+ if (!c->caf_token)
+ c->caf_token = c->next->backend_decl;
+ dst_tok = fold_build3_loc (input_location,
+ COMPONENT_REF,
+ pvoid_type_node, dest,
+ c->caf_token,
+ NULL_TREE);
+ }
tmp = duplicate_allocatable_coarray (dcmp, dst_tok, comp,
ctype, rank);
}
diff --git a/gcc/testsuite/gfortran.dg/coarray/pr93671.f90 b/gcc/testsuite/gfortran.dg/coarray/pr93671.f90
new file mode 100644
index 00000000000..8d26ff88753
--- /dev/null
+++ b/gcc/testsuite/gfortran.dg/coarray/pr93671.f90
@@ -0,0 +1,24 @@
+! { dg-do run }
+
+! PR/fortran 93671 - ICE on intrinsic assignment to allocatable derived-type
+! component of coarray
+
+ type flux_planes
+ integer, allocatable :: normals
+ end type
+
+ type package
+ type(flux_planes) surface_fluxes(1)
+ end type
+
+ type(package) mail[*], halo_data
+
+ halo_data%surface_fluxes(1)%normals = 1
+ mail = halo_data
+
+ if (any(size(mail%surface_fluxes) /= [1]) .OR. &
+ mail%surface_fluxes(1)%normals /= 1) then
+ stop 1
+ end if
+end
+
