re PR tree-optimization/46068 (ICE: in consider_split, at ipa-split.c:313 with…

re PR tree-optimization/46068 (ICE: in consider_split, at ipa-split.c:313 with asm goto and __builtin_unreachable ())

2010-11-04  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/46068
	* ipa-split.c (consider_split): Remove gcc_unreachable.

	* gcc.dg/torture/pr46068.c: New testcase.

From-SVN: r166315

gcc/ChangeLog

 2010-11-04  Richard Guenther  <rguenther@suse.de>
 
+	PR tree-optimization/46068
+	* ipa-split.c (consider_split): Remove gcc_unreachable.
+
+2010-11-04  Richard Guenther  <rguenther@suse.de>
+
 	* tree-nested.c (build_addr): Use build_fold_addr_expr.
 
 2010-11-04  Richard Guenther  <rguenther@suse.de>

gcc/ipa-split.c

@@ -310,7 +310,6 @@ consider_split (struct split_point *current, bitmap non_ssa_vars,
     {
       if (dump_file && (dump_flags & TDF_DETAILS))
 	fprintf (dump_file, "  Refused: header empty\n");
-      gcc_unreachable ();
       return;
     }
 

gcc/testsuite/ChangeLog

 2010-11-04  Richard Guenther  <rguenther@suse.de>
 
+	PR tree-optimization/46068
+	* gcc.dg/torture/pr46068.c: New testcase.
+
+2010-11-04  Richard Guenther  <rguenther@suse.de>
+
 	PR tree-optimization/45991
 	* gcc.dg/pr45991.c: New testcase.
 

gcc/testsuite/gcc.dg/torture/pr46068.c

+/* { dg-do compile } */
+
+void
+foo ()
+{
+  asm goto (""::::l1);
+  __builtin_unreachable ();
+l1:;
+}
+
+void
+bar ()
+{
+  foo ();
+  foo ();
+}