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* [gcc/devel/autopar_devel] Fortran : ICE in generic_correspondence PR95584
@ 2020-08-22 23:12 Giuliano Belinassi
0 siblings, 0 replies; only message in thread
From: Giuliano Belinassi @ 2020-08-22 23:12 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:fb4a20d95983d4c6548cf559ab3021f67671b5e4
commit fb4a20d95983d4c6548cf559ab3021f67671b5e4
Author: Mark Eggleston <markeggleston@gcc.gnu.org>
Date: Thu Jun 25 05:16:50 2020 +0100
Fortran : ICE in generic_correspondence PR95584
Output an error for ambiguous interfaces in generic interface
instead of ICE.
2020-07-02 Steven G. Kargl <kargl@gcc.gnu.org>
gcc/fortran/
PR fortran/95584
* interface.c (generic_correspondence): Only use the pointer
to a symbol if exists.
2020-07-02 Mark Eggleston <markeggleston@gcc.gnu.org>
gcc/testsuite/
PR fortran/95584
* gfortran.dg/pr95584.f90: New test.
Diff:
---
gcc/fortran/interface.c | 2 +-
gcc/testsuite/gfortran.dg/pr95584.f90 | 16 ++++++++++++++++
2 files changed, 17 insertions(+), 1 deletion(-)
diff --git a/gcc/fortran/interface.c b/gcc/fortran/interface.c
index b1a75a37b0e..0cc504f4e04 100644
--- a/gcc/fortran/interface.c
+++ b/gcc/fortran/interface.c
@@ -1257,7 +1257,7 @@ generic_correspondence (gfc_formal_arglist *f1, gfc_formal_arglist *f2,
while (f1)
{
- if (f1->sym->attr.optional)
+ if (!f1->sym || f1->sym->attr.optional)
goto next;
if (p1 && strcmp (f1->sym->name, p1) == 0)
diff --git a/gcc/testsuite/gfortran.dg/pr95584.f90 b/gcc/testsuite/gfortran.dg/pr95584.f90
new file mode 100644
index 00000000000..4504f7b500c
--- /dev/null
+++ b/gcc/testsuite/gfortran.dg/pr95584.f90
@@ -0,0 +1,16 @@
+! { dg-do compile }
+
+program p
+ interface s
+ subroutine g(x, *)
+ end
+ subroutine h(y, *)
+ end
+ end interface
+end
+
+! { dg-warning "Obsolescent feature: Alternate-return argument" " " { target *-*-* } 5 }
+! { dg-warning "Obsolescent feature: Alternate-return argument" " " { target *-*-* } 7 }
+! { dg-error ".1." " " { target *-*-* } 5 }
+! { dg-error "Ambiguous interfaces in generic interface" " " { target *-*-* } 7 }
+
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