From: Bud Davis <jmdavis@link.com>
Date: Mon, 27 May 2013 14:16:36 +0000 (+0000)
Subject: re PR fortran/50405 (allocation LOOP or SIGSEGV)
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=9281625be0619cdf7b4798eb62a69effe306b5cc;p=gcc.git

re PR fortran/50405 (allocation LOOP or SIGSEGV)

2013-05-27  Bud Davis  <jmdavis@link.com>

        PR fortran/50405
        * resolve.c (resolve_formal_arglist): Detect error when an
        * argument
        has the same name as the function.

2013-05-27  Bud Davis  <jmdavis@link.com>

        PR fortran/50405
        * gfortran.dg/stfunc_8.f90: New.

From-SVN: r199358
---

diff --git a/gcc/fortran/ChangeLog b/gcc/fortran/ChangeLog
index 4d5088eb7c1..e13a46b5f5d 100644
--- a/gcc/fortran/ChangeLog
+++ b/gcc/fortran/ChangeLog
@@ -1,3 +1,9 @@
+2013-05-27  Bud Davis  <jmdavis@link.com>
+
+	PR fortran/50405
+	* resolve.c (resolve_formal_arglist): Detect error when an argument
+	has the same name as the function.
+
 2013-05-27  Tobias Burnus  <burnus@net-b.de>
 
 	* expr.c (gfc_build_intrinsic_call): Make symbol as attr.artificial.
diff --git a/gcc/fortran/resolve.c b/gcc/fortran/resolve.c
index a63ee938544..78a1038009b 100644
--- a/gcc/fortran/resolve.c
+++ b/gcc/fortran/resolve.c
@@ -306,6 +306,14 @@ resolve_formal_arglist (gfc_symbol *proc)
 	       && !resolve_procedure_interface (sym))
 	return;
 
+      if (strcmp (proc->name, sym->name) == 0)
+        {
+          gfc_error ("Self-referential argument "
+                     "'%s' at %L is not allowed", sym->name,
+                     &proc->declared_at);
+          return;
+        }
+
       if (sym->attr.if_source != IFSRC_UNKNOWN)
 	resolve_formal_arglist (sym);
 
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 40c213fc251..95330b7af9d 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2013-05-27  Bud Davis  <jmdavis@link.com>
+
+	PR fortran/50405
+	* gfortran.dg/stfunc_8.f90: New.
+
 2013-05-27  Richard Biener  <rguenther@suse.de>
 
 	PR tree-optimization/57343
diff --git a/gcc/testsuite/gfortran.dg/stfunc_8.f90 b/gcc/testsuite/gfortran.dg/stfunc_8.f90
new file mode 100644
index 00000000000..f13cacaeb8f
--- /dev/null
+++ b/gcc/testsuite/gfortran.dg/stfunc_8.f90
@@ -0,0 +1,9 @@
+! { dg-do compile }
+! { dg-options "" }
+!
+! PR fortran/50405
+!
+! Submitted by zeccav@gmail.com
+!
+       f(f) = 0 ! { dg-error "Self-referential argument" }
+       end