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Fortran : ICE in gfc_check_reshape PR95585

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Issue an error where an array is used before its definition
instead of an ICE.

2020-06-22  Steven G. Kargl  <kargl@gcc.gnu.org>

gcc/fortran/

	PR fortran/95585
	* check.c (gfc_check_reshape): Add check for a value when
	the symbol has an attribute flavor FL_PARAMETER.

2020-06-22  Mark Eggleston  <markeggleston@gcc.gnu.org>

gcc/testsuite/

	PR fortran/95585
	* gfortran.dg/pr95585.f90: New test.
This commit is contained in:
Mark Eggleston 2020-06-11 06:42:36 +01:00
parent d57bf2315e
commit d9aed5f1cc
2 changed files with 8 additions and 1 deletions
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3
gcc/fortran/check.c
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@ -4742,7 +4742,8 @@ gfc_check_reshape (gfc_expr *source, gfc_expr *shape,
&& shape->ref->u.ar.as->lower[0]->ts.type == BT_INTEGER
&& shape->ref->u.ar.as->upper[0]->expr_type == EXPR_CONSTANT
&& shape->ref->u.ar.as->upper[0]->ts.type == BT_INTEGER
&& shape->symtree->n.sym->attr.flavor == FL_PARAMETER)
&& shape->symtree->n.sym->attr.flavor == FL_PARAMETER
&& shape->symtree->n.sym->value)
{
int i, extent;
gfc_expr *e, *v;

6
gcc/testsuite/gfortran.dg/pr95585.f90 Normal file
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@ -0,0 +1,6 @@
! { dg-do compile }
program test
integer, parameter :: a(2) = reshape([1, 2], a) ! { dg-error "before its definition" }
end program