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[Bug target/32218] [4.2/4.3 Regression] segfault with -O1 -ftree-vectorize
- From: "sje at cup dot hp dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 25 Jul 2007 16:20:16 -0000
- Subject: [Bug target/32218] [4.2/4.3 Regression] segfault with -O1 -ftree-vectorize
- References: <bug-32218-12387@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #7 from sje at cup dot hp dot com 2007-07-25 16:20 -------
Well, that was silly. I couldn't reproduce the problem because I had a patch
in my local tree. Here is the patch I created, I will submit it to
gcc-patches.
Basically, get_vectype_for_scalar_type can return a NULL_TREE and we need to
allow for that and not call TYPE_MODE with a NULL_TREE.
Index: tree-vect-patterns.c
===================================================================
--- tree-vect-patterns.c (revision 126897)
+++ tree-vect-patterns.c (working copy)
@@ -651,8 +651,9 @@ vect_pattern_recog_1 (
|| (icode = optab->handlers[(int) vec_mode].insn_code) ==
CODE_FOR_nothing
|| (type_out
- && (insn_data[icode].operand[0].mode !=
- TYPE_MODE (get_vectype_for_scalar_type (type_out)))))
+ && (!get_vectype_for_scalar_type (type_out)
+ || (insn_data[icode].operand[0].mode !=
+ TYPE_MODE (get_vectype_for_scalar_type (type_out))))))
return;
}
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32218