* [PATCH] [8/9/10/11 Regression] ICE on invalid with argument list for module procedure
@ 2020-06-25 20:57 Harald Anlauf
2020-06-29 19:03 ` [PATCH] [8/9/10/11 Regression] PR fortran/93423 - " Harald Anlauf
0 siblings, 1 reply; 2+ messages in thread
From: Harald Anlauf @ 2020-06-25 20:57 UTC (permalink / raw)
To: fortran, gcc-patches
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A simple situation where a NULL pointer dereference occurs during error recovery.
Regtested on x86_64-pc-linux-gnu.
OK for master / backports?
Thanks,
Harald
PR fortran/93423 - ICE on invalid with argument list for module procedure
When recovering from an error, a NULL pointer dereference could occur.
Check for that situation and punt.
gcc/fortran/
PR fortran/93423
* resolve.c (resolve_symbol): Avoid NULL pointer dereference.
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diff --git a/gcc/fortran/resolve.c b/gcc/fortran/resolve.c
index 6fa34caec54..c9447a24885 100644
--- a/gcc/fortran/resolve.c
+++ b/gcc/fortran/resolve.c
@@ -15901,7 +15901,7 @@ resolve_symbol (gfc_symbol *sym)
if (formal)
{
sym->formal_ns = formal->sym->ns;
- if (sym->ns != formal->sym->ns)
+ if (sym->ns != formal->sym->ns && sym->formal_ns)
sym->formal_ns->refs++;
}
}
diff --git a/gcc/testsuite/gfortran.dg/pr93423.f90 b/gcc/testsuite/gfortran.dg/pr93423.f90
new file mode 100644
index 00000000000..fed5914daba
--- /dev/null
+++ b/gcc/testsuite/gfortran.dg/pr93423.f90
@@ -0,0 +1,21 @@
+! { dg-do compile }
+! PR fortran/93423 - ICE on invalid with argument list for module procedure
+
+module t
+ type :: b
+ contains
+ procedure :: p => bp
+ end type b
+ interface
+ module function bp(s)
+ class(b), intent(inout) :: s
+ integer, pointer :: bp
+ end function
+ end interface
+end module t
+
+submodule (t) ts
+contains
+ module procedure bp(s) ! { dg-error "must be in a generic module interface" }
+ end procedure bp ! { dg-error "Expecting END SUBMODULE statement" }
+end submodule ts
^ permalink raw reply [flat|nested] 2+ messages in thread
* [PATCH] [8/9/10/11 Regression] PR fortran/93423 - ICE on invalid with argument list for module procedure
2020-06-25 20:57 [PATCH] [8/9/10/11 Regression] ICE on invalid with argument list for module procedure Harald Anlauf
@ 2020-06-29 19:03 ` Harald Anlauf
0 siblings, 0 replies; 2+ messages in thread
From: Harald Anlauf @ 2020-06-29 19:03 UTC (permalink / raw)
To: Harald Anlauf; +Cc: fortran, gcc-patches
Early ping (might make it into 10.2).
> A simple situation where a NULL pointer dereference occurs during error recovery.
>
> Regtested on x86_64-pc-linux-gnu.
>
> OK for master / backports?
>
> Thanks,
> Harald
>
>
> PR fortran/93423 - ICE on invalid with argument list for module procedure
>
> When recovering from an error, a NULL pointer dereference could occur.
> Check for that situation and punt.
>
> gcc/fortran/
> PR fortran/93423
> * resolve.c (resolve_symbol): Avoid NULL pointer dereference.
>
Thanks,
Harald
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2020-06-25 20:57 [PATCH] [8/9/10/11 Regression] ICE on invalid with argument list for module procedure Harald Anlauf
2020-06-29 19:03 ` [PATCH] [8/9/10/11 Regression] PR fortran/93423 - " Harald Anlauf
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