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* [gcc r13-4605] Fortran: fix ICE on bad use of statement function [PR107995]
@ 2022-12-11 19:35 Harald Anlauf
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From: Harald Anlauf @ 2022-12-11 19:35 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:8f72249ff4cbd0a5c701b99ee8aa1ca9d82df046
commit r13-4605-g8f72249ff4cbd0a5c701b99ee8aa1ca9d82df046
Author: Steve Kargl <kargl@gcc.gnu.org>
Date: Sat Dec 10 22:17:15 2022 +0100
Fortran: fix ICE on bad use of statement function [PR107995]
gcc/fortran/ChangeLog:
PR fortran/107995
* interface.cc (gfc_check_dummy_characteristics): Reject statement
function dummy arguments.
gcc/testsuite/ChangeLog:
PR fortran/107995
* gfortran.dg/pr107995.f90: New test.
Diff:
---
gcc/fortran/interface.cc | 6 ++++++
gcc/testsuite/gfortran.dg/pr107995.f90 | 10 ++++++++++
2 files changed, 16 insertions(+)
diff --git a/gcc/fortran/interface.cc b/gcc/fortran/interface.cc
index 73799c175b7..7d8eeda5a99 100644
--- a/gcc/fortran/interface.cc
+++ b/gcc/fortran/interface.cc
@@ -1334,6 +1334,12 @@ gfc_check_dummy_characteristics (gfc_symbol *s1, gfc_symbol *s2,
if (s1 == NULL || s2 == NULL)
return s1 == s2 ? true : false;
+ if (s1->attr.proc == PROC_ST_FUNCTION || s2->attr.proc == PROC_ST_FUNCTION)
+ {
+ strncpy (errmsg, "Statement function", err_len);
+ return false;
+ }
+
/* Check type and rank. */
if (type_must_agree)
{
diff --git a/gcc/testsuite/gfortran.dg/pr107995.f90 b/gcc/testsuite/gfortran.dg/pr107995.f90
new file mode 100644
index 00000000000..22e878630b8
--- /dev/null
+++ b/gcc/testsuite/gfortran.dg/pr107995.f90
@@ -0,0 +1,10 @@
+! { dg-do compile }
+! PR fortran/107995
+! Contributed by G.Steinmetz
+
+program p
+ implicit none
+ integer :: n ! { dg-error "Self-referential argument" }
+ n(n) = 1 ! { dg-warning "Statement function" }
+ print *, n(n) ! { dg-error "Statement function" }
+end
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