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* [gcc r11-9217] Fortran: error recovery on initializing invalid derived type array component
@ 2021-11-07 20:54 Harald Anlauf
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From: Harald Anlauf @ 2021-11-07 20:54 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:3371e7f18df52867b0b88966bd98d3f1eff6f815
commit r11-9217-g3371e7f18df52867b0b88966bd98d3f1eff6f815
Author: Harald Anlauf <anlauf@gmx.de>
Date: Tue Oct 26 20:51:46 2021 +0200
Fortran: error recovery on initializing invalid derived type array component
gcc/fortran/ChangeLog:
PR fortran/102816
* resolve.c (resolve_structure_cons): Reject invalid array spec of
a DT component referenced in a structure constructor.
gcc/testsuite/ChangeLog:
PR fortran/102816
* gfortran.dg/pr102816.f90: New test.
(cherry picked from commit 99af0b2f0fe1c0dc8c6d558157e700326d52816a)
Diff:
---
gcc/fortran/resolve.c | 11 +++++++++--
gcc/testsuite/gfortran.dg/pr102816.f90 | 9 +++++++++
2 files changed, 18 insertions(+), 2 deletions(-)
diff --git a/gcc/fortran/resolve.c b/gcc/fortran/resolve.c
index 277af0e61b0..bf7902742e2 100644
--- a/gcc/fortran/resolve.c
+++ b/gcc/fortran/resolve.c
@@ -1463,8 +1463,15 @@ resolve_structure_cons (gfc_expr *expr, int init)
mpz_init (len);
for (int n = 0; n < rank; n++)
{
- gcc_assert (comp->as->upper[n]->expr_type == EXPR_CONSTANT
- && comp->as->lower[n]->expr_type == EXPR_CONSTANT);
+ if (comp->as->upper[n]->expr_type != EXPR_CONSTANT
+ || comp->as->lower[n]->expr_type != EXPR_CONSTANT)
+ {
+ gfc_error ("Bad array spec of component %qs referenced in "
+ "structure constructor at %L",
+ comp->name, &cons->expr->where);
+ t = false;
+ break;
+ };
mpz_set_ui (len, 1);
mpz_add (len, len, comp->as->upper[n]->value.integer);
mpz_sub (len, len, comp->as->lower[n]->value.integer);
diff --git a/gcc/testsuite/gfortran.dg/pr102816.f90 b/gcc/testsuite/gfortran.dg/pr102816.f90
new file mode 100644
index 00000000000..46831743b2b
--- /dev/null
+++ b/gcc/testsuite/gfortran.dg/pr102816.f90
@@ -0,0 +1,9 @@
+! { dg-do compile }
+! PR fortran/102816
+
+program p
+ type t
+ integer :: a([2]) ! { dg-error "must be scalar" }
+ end type
+ type(t) :: x = t([3, 4]) ! { dg-error "Bad array spec of component" }
+end
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