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From: Harald Anlauf <anlauf@gcc.gnu.org> To: gcc-cvs@gcc.gnu.org Subject: [gcc r12-4967] Fortran: fix simplification of array-valued parameter expressions Date: Fri, 5 Nov 2021 22:50:10 +0000 (GMT) [thread overview] Message-ID: <20211105225010.F33C43858414@sourceware.org> (raw) https://gcc.gnu.org/g:bcf3728abe8488882922005166d3065fc5fdfea1 commit r12-4967-gbcf3728abe8488882922005166d3065fc5fdfea1 Author: Harald Anlauf <anlauf@gmx.de> Date: Fri Nov 5 23:48:20 2021 +0100 Fortran: fix simplification of array-valued parameter expressions gcc/fortran/ChangeLog: PR fortran/102817 * expr.c (simplify_parameter_variable): Copy shape of referenced subobject when simplifying. gcc/testsuite/ChangeLog: PR fortran/102817 * gfortran.dg/pr102817.f90: New test. Diff: --- gcc/fortran/expr.c | 2 ++ gcc/testsuite/gfortran.dg/pr102817.f90 | 17 +++++++++++++++++ 2 files changed, 19 insertions(+) diff --git a/gcc/fortran/expr.c b/gcc/fortran/expr.c index 087d822021a..941d29cf7cd 100644 --- a/gcc/fortran/expr.c +++ b/gcc/fortran/expr.c @@ -2128,6 +2128,8 @@ simplify_parameter_variable (gfc_expr *p, int type) if (e == NULL) return false; + gfc_free_shape (&e->shape, e->rank); + e->shape = gfc_copy_shape (p->shape, p->rank); e->rank = p->rank; if (e->ts.type == BT_CHARACTER && p->ts.u.cl) diff --git a/gcc/testsuite/gfortran.dg/pr102817.f90 b/gcc/testsuite/gfortran.dg/pr102817.f90 new file mode 100644 index 00000000000..c081a69f0ea --- /dev/null +++ b/gcc/testsuite/gfortran.dg/pr102817.f90 @@ -0,0 +1,17 @@ +! { dg-do compile } +! PR fortran/102817 - ICE in gfc_clear_shape + +program test + type t + integer :: a(1,2) = 3 + end type t + type(t), parameter :: u = t(4) + type(t), parameter :: x(1) = t(4) + integer, parameter :: p(1,2) = (x(1)%a) + integer :: z(1,2) = (x(1)%a) + integer :: y(1,2), v(1,2), w(1,2) + v = (u %a) + w = x(1)%a + y = (x(1)%a) + print *, v, w, y, z, p +end
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