Fortran: MOLD argument to TRANSFER intrinsic having storage size zero

gcc/fortran/ChangeLog:

	PR fortran/104227
	* check.cc (gfc_calculate_transfer_sizes): Fix checking of arrays
	passed as MOLD argument to the TRANSFER intrinsic for having
	storage size zero.

gcc/testsuite/ChangeLog:

	PR fortran/104227
	* gfortran.dg/transfer_check_6.f90: New test.

diff --git a/gcc/fortran/check.cc b/gcc/fortran/check.cc
index 4fa05ee7e9b733493e77b63161e6e40ea8317fb4..d6c6767ae9e3c0a798782cc51639aac3280e6d49 100644 (file)
--- a/gcc/fortran/check.cc
+++ b/gcc/fortran/check.cc
@@ -6151,7 +6151,7 @@ gfc_calculate_transfer_sizes (gfc_expr *source, gfc_expr *mold, gfc_expr *size,
    * If SIZE is present, the result is an array of rank one and size SIZE.
    */
   if (result_elt_size == 0 && *source_size > 0 && !size
-      && mold->expr_type == EXPR_ARRAY)
+      && (mold->expr_type == EXPR_ARRAY || mold->rank))
     {
       gfc_error ("%<MOLD%> argument of %<TRANSFER%> intrinsic at %L is an "
                 "array and shall not have storage size 0 when %<SOURCE%> "

diff --git a/gcc/testsuite/gfortran.dg/transfer_check_6.f90 b/gcc/testsuite/gfortran.dg/transfer_check_6.f90
new file mode 100644 (file)
index 0000000..dffd091
--- /dev/null
+++ b/gcc/testsuite/gfortran.dg/transfer_check_6.f90
@@ -0,0 +1,11 @@
+! { dg-do compile }
+! PR fortran/104227 - ICE virtual memory exhausted
+! Contributed by G.Steinmetz
+
+program p
+  type t
+  end type
+  type(t) :: x(2)
+  print *, transfer(1, x) ! { dg-error "shall not have storage size 0" }
+  x = transfer(1, x)      ! { dg-error "shall not have storage size 0" }
+end