re PR tree-optimization/44539 (ICE: verify_ssa failed: type mismatch between an…

re PR tree-optimization/44539 (ICE: verify_ssa failed: type mismatch between an SSA_NAME and its symbol)

	PR tree-optimization/44539
	* tree-cfgcleanup.c (fixup_noreturn_call): Call update_stmt even when
	the call doesn't have LHS, but has VDEF.

	* gcc.dg/pr44539.c: New test.

From-SVN: r161374

gcc/ChangeLog

+2010-06-25  Jakub Jelinek  <jakub@redhat.com>
+
+	PR tree-optimization/44539
+	* tree-cfgcleanup.c (fixup_noreturn_call): Call update_stmt even when
+	the call doesn't have LHS, but has VDEF.
+
 2010-06-25  Joseph Myers  <joseph@codesourcery.com>
 
 	* config/pa/pa.h (MODIFY_TARGET_NAME): Remove.

gcc/testsuite/ChangeLog

+2010-06-25  Jakub Jelinek  <jakub@redhat.com>
+
+	PR tree-optimization/44539
+	* gcc.dg/pr44539.c: New test.
+
 2010-06-25  Bernd Schmidt  <bernds@codesourcery.com>
 
 	From Jim Wilson:

gcc/testsuite/gcc.dg/pr44539.c

+/* PR tree-optimization/44539 */
+/* { dg-do compile } */
+/* { dg-options "-ftracer -freorder-blocks -O2" } */
+
+void bar (int file);
+extern int baz (void);
+
+void noret1 ()
+{
+  bar (0);
+  __builtin_exit (0);
+}
+
+void noret2 ()
+{
+  __builtin_exit (0);
+}
+
+void bar (int i)
+{
+  if (baz ())
+    noret1 (i);
+}
+
+void foo (int i)
+{
+  if (~i) bar (i);
+  i ? noret1 () : noret2 ();
+}

gcc/tree-cfgcleanup.c

@@ -591,6 +591,9 @@ fixup_noreturn_call (gimple stmt)
       update_stmt (stmt);
       changed = true;
     }
+  /* Similarly remove VDEF if there is any.  */
+  else if (gimple_vdef (stmt))
+    update_stmt (stmt);
   return changed;
 }