From b8f124adcf258eccd29ffcec5cc3f8915cc2ca47 Mon Sep 17 00:00:00 2001 From: Harald Anlauf Date: Tue, 1 Feb 2022 23:33:24 +0100 Subject: [PATCH] Fortran: reject simplifying TRANSFER for MOLD with storage size 0 gcc/fortran/ChangeLog: PR fortran/104311 * check.cc (gfc_calculate_transfer_sizes): Checks for case when storage size of SOURCE is greater than zero while the storage size of MOLD is zero and MOLD is an array shall not depend on SIZE. gcc/testsuite/ChangeLog: PR fortran/104311 * gfortran.dg/transfer_simplify_15.f90: New test. --- gcc/fortran/check.cc | 2 +- gcc/testsuite/gfortran.dg/transfer_simplify_15.f90 | 11 +++++++++++ 2 files changed, 12 insertions(+), 1 deletion(-) create mode 100644 gcc/testsuite/gfortran.dg/transfer_simplify_15.f90 diff --git a/gcc/fortran/check.cc b/gcc/fortran/check.cc index d6c6767ae9e..fc97bb1371e 100644 --- a/gcc/fortran/check.cc +++ b/gcc/fortran/check.cc @@ -6150,7 +6150,7 @@ gfc_calculate_transfer_sizes (gfc_expr *source, gfc_expr *mold, gfc_expr *size, * representation is not shorter than that of SOURCE. * If SIZE is present, the result is an array of rank one and size SIZE. */ - if (result_elt_size == 0 && *source_size > 0 && !size + if (result_elt_size == 0 && *source_size > 0 && (mold->expr_type == EXPR_ARRAY || mold->rank)) { gfc_error ("% argument of % intrinsic at %L is an " diff --git a/gcc/testsuite/gfortran.dg/transfer_simplify_15.f90 b/gcc/testsuite/gfortran.dg/transfer_simplify_15.f90 new file mode 100644 index 00000000000..cdbec97ae71 --- /dev/null +++ b/gcc/testsuite/gfortran.dg/transfer_simplify_15.f90 @@ -0,0 +1,11 @@ +! { dg-do compile } +! PR fortran/104311 - ICE out of memory +! Contributed by G.Steinmetz + +program p + type t + end type + type(t) :: x(2) + print *, transfer(1,x,2) ! { dg-error "shall not have storage size 0" } + print *, transfer(1,x,huge(1)) ! { dg-error "shall not have storage size 0" } +end -- 2.34.1