From patchwork Sat Oct 20 10:14:51 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jan Hubicka X-Patchwork-Id: 192911 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from sourceware.org (server1.sourceware.org [209.132.180.131]) by ozlabs.org (Postfix) with SMTP id 8E9212C0080 for ; Sat, 20 Oct 2012 21:15:15 +1100 (EST) Comment: DKIM? See http://www.dkim.org DKIM-Signature: v=1; a=rsa-sha1; c=relaxed/relaxed; d=gcc.gnu.org; s=default; x=1351332916; h=Comment: DomainKey-Signature:Received:Received:Received:Received:Date: From:To:Subject:Message-ID:MIME-Version:Content-Type: Content-Disposition:User-Agent:Mailing-List:Precedence:List-Id: List-Unsubscribe:List-Archive:List-Post:List-Help:Sender: Delivered-To; bh=MGc9kLAA8dtdnDJFHgU6xruFY70=; b=R+idjV/vOOIrH6e kbJrqp0Qmf+R00koP5puHRSqMTRtctHR4yFZNO8IBTbg99+/SiiQn/WhaTcnYwgE wV0rOJMgjQSkK1AkSBNtcKRGhan9ndGBidcyXfdnGVoujtSJ9okIRWL5EtNfGe8Q rKPtJbdKMiVivhQafdUWYsbc33LI= Comment: DomainKeys? See http://antispam.yahoo.com/domainkeys DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=default; d=gcc.gnu.org; h=Received:Received:X-SWARE-Spam-Status:X-Spam-Check-By:Received:Received:Date:From:To:Subject:Message-ID:MIME-Version:Content-Type:Content-Disposition:User-Agent:Mailing-List:Precedence:List-Id:List-Unsubscribe:List-Archive:List-Post:List-Help:Sender:Delivered-To; b=VTO0cT6QmqxqPZ9TlQbBltbN1ryCGK1HQ5d3+a3mfHp3WZXkFjECUlMl3SqNfF ShUWO46rfJXAIQjz9Zn1J6a/5Gw7q7POvnl6VygSMb5k4c19hrGdzXTfWA3Q6sWC uIw/EPpbkZv+9ENoHJNwAPOrN4FAZO5Zr3vFe9dd2fNIE=; Received: (qmail 29732 invoked by alias); 20 Oct 2012 10:15:07 -0000 Received: (qmail 29637 invoked by uid 22791); 20 Oct 2012 10:15:04 -0000 X-SWARE-Spam-Status: No, hits=-4.0 required=5.0 tests=AWL, BAYES_00, KHOP_RCVD_UNTRUST, RCVD_IN_DNSWL_LOW, RCVD_IN_HOSTKARMA_W, RCVD_IN_HOSTKARMA_WL, RP_MATCHES_RCVD, UPPERCASE_50_75 X-Spam-Check-By: sourceware.org Received: from nikam.ms.mff.cuni.cz (HELO nikam.ms.mff.cuni.cz) (195.113.20.16) by sourceware.org (qpsmtpd/0.43rc1) with ESMTP; Sat, 20 Oct 2012 10:14:59 +0000 Received: by nikam.ms.mff.cuni.cz (Postfix, from userid 16202) id B6AFD5437EC; Sat, 20 Oct 2012 12:14:51 +0200 (CEST) Date: Sat, 20 Oct 2012 12:14:51 +0200 From: Jan Hubicka To: gcc-patches@gcc.gnu.org Subject: Fix C FE __builtin_unreachable definition Message-ID: <20121020101451.GB27469@kam.mff.cuni.cz> MIME-Version: 1.0 Content-Disposition: inline User-Agent: Mutt/1.5.20 (2009-06-14) Mailing-List: contact gcc-patches-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Unsubscribe: List-Archive: List-Post: List-Help: Sender: gcc-patches-owner@gcc.gnu.org Delivered-To: mailing list gcc-patches@gcc.gnu.org Hi, this patch fixes BUILT_IN_UNREACHABLE declaration of C frontned. The function is also pure (so DSE can do its job). As a special case ECF flags for CONST & NORETURN also add looping, so this declaration is correct. The implicit declaration of the builtin is already set this way. Bootstrapped/regtested x86_64-linux, comitted as obvious. Honza * builtins.def (BUILT_IN_UNREACHABLE): Make ATTR_CONST_NORETURN_NOTHROW_LEAF_LIST. * builtin-attrs.def (ATTR_CONST_NORETURN_NOTHROW_LEAF_LIST): Define. Index: builtins.def =================================================================== --- builtins.def (revision 192537) +++ builtins.def (working copy) @@ -728,7 +728,7 @@ DEF_GCC_BUILTIN (BUILT_IN_SETJMP, DEF_EXT_LIB_BUILTIN (BUILT_IN_STRFMON, "strfmon", BT_FN_SSIZE_STRING_SIZE_CONST_STRING_VAR, ATTR_FORMAT_STRFMON_NOTHROW_3_4) DEF_LIB_BUILTIN (BUILT_IN_STRFTIME, "strftime", BT_FN_SIZE_STRING_SIZE_CONST_STRING_CONST_PTR, ATTR_FORMAT_STRFTIME_NOTHROW_3_0) DEF_GCC_BUILTIN (BUILT_IN_TRAP, "trap", BT_FN_VOID, ATTR_NORETURN_NOTHROW_LEAF_LIST) -DEF_GCC_BUILTIN (BUILT_IN_UNREACHABLE, "unreachable", BT_FN_VOID, ATTR_NORETURN_NOTHROW_LEAF_LIST) +DEF_GCC_BUILTIN (BUILT_IN_UNREACHABLE, "unreachable", BT_FN_VOID, ATTR_CONST_NORETURN_NOTHROW_LEAF_LIST) DEF_GCC_BUILTIN (BUILT_IN_UNWIND_INIT, "unwind_init", BT_FN_VOID, ATTR_NULL) DEF_GCC_BUILTIN (BUILT_IN_UPDATE_SETJMP_BUF, "update_setjmp_buf", BT_FN_VOID_PTR_INT, ATTR_NULL) DEF_GCC_BUILTIN (BUILT_IN_VA_COPY, "va_copy", BT_FN_VOID_VALIST_REF_VALIST_ARG, ATTR_NOTHROW_LEAF_LIST) Index: builtin-attrs.def =================================================================== --- builtin-attrs.def (revision 192537) +++ builtin-attrs.def (working copy) @@ -131,6 +131,8 @@ DEF_ATTR_TREE_LIST (ATTR_NORETURN_NOTHRO ATTR_NULL, ATTR_NOTHROW_LIST) DEF_ATTR_TREE_LIST (ATTR_NORETURN_NOTHROW_LEAF_LIST, ATTR_NORETURN,\ ATTR_NULL, ATTR_NOTHROW_LEAF_LIST) +DEF_ATTR_TREE_LIST (ATTR_CONST_NORETURN_NOTHROW_LEAF_LIST, ATTR_CONST,\ + ATTR_NULL, ATTR_NORETURN_NOTHROW_LEAF_LIST) DEF_ATTR_TREE_LIST (ATTR_MALLOC_NOTHROW_LIST, ATTR_MALLOC, \ ATTR_NULL, ATTR_NOTHROW_LIST) DEF_ATTR_TREE_LIST (ATTR_MALLOC_NOTHROW_LEAF_LIST, ATTR_MALLOC, \