From patchwork Thu Sep 7 10:09:27 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Arnaud Charlet X-Patchwork-Id: 810951 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (mailfrom) smtp.mailfrom=gcc.gnu.org (client-ip=209.132.180.131; helo=sourceware.org; envelope-from=gcc-patches-return-461676-incoming=patchwork.ozlabs.org@gcc.gnu.org; receiver=) Authentication-Results: ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=gcc.gnu.org header.i=@gcc.gnu.org header.b="yJvUzq2l"; dkim-atps=neutral Received: from sourceware.org (server1.sourceware.org [209.132.180.131]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 3xnx5R6Rgcz9t2c for ; Thu, 7 Sep 2017 20:09:47 +1000 (AEST) DomainKey-Signature: a=rsa-sha1; c=nofws; d=gcc.gnu.org; h=list-id :list-unsubscribe:list-archive:list-post:list-help:sender:date :from:to:cc:subject:message-id:mime-version:content-type; q=dns; s=default; b=aY6q0U3RVFvm7tktCBsK6vYWGvcAzAOoHdBQO8QgwMG7GGBBAx p4xYcZLHV8rYJ7+/BvumlfZCJtAAi6QG68MA7Zceg9/au5RkAwWKEpTPy/9YGEG6 2PPfwj2E40dnNev0xSMe8Q8tc/Cxs8yHpvJfRIvcVnhDXwTZ3UvCYGyr0= DKIM-Signature: v=1; a=rsa-sha1; c=relaxed; d=gcc.gnu.org; h=list-id :list-unsubscribe:list-archive:list-post:list-help:sender:date :from:to:cc:subject:message-id:mime-version:content-type; s= default; bh=W0Vg5vbzmpzLFnaK7FK+FeC06MA=; b=yJvUzq2lxUs+Idbq65jZ q1xXxKqVeqOtY9iwt/ih7L4c8J+L53ZUcgFlTw+y4yJNzRltnlFfYEnFio3uUhiR stropKw5b7lbSmy0uCIyaShOvsXAsRKYUXo/h7tMVBJ1SUjrhRR7RFRq3maxqcqy CX9Vlf0lTydb+pAHou/vDgk= Received: (qmail 126803 invoked by alias); 7 Sep 2017 10:09:31 -0000 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 Received: (qmail 126537 invoked by uid 89); 7 Sep 2017 10:09:30 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-11.9 required=5.0 tests=BAYES_00, GIT_PATCH_2, GIT_PATCH_3, RCVD_IN_DNSWL_NONE, SPF_PASS autolearn=ham version=3.3.2 spammy=Hx-languages-length:1105 X-HELO: rock.gnat.com Received: from rock.gnat.com (HELO rock.gnat.com) (205.232.38.15) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with ESMTP; Thu, 07 Sep 2017 10:09:29 +0000 Received: from localhost (localhost.localdomain [127.0.0.1]) by filtered-rock.gnat.com (Postfix) with ESMTP id F0CC6561A4; Thu, 7 Sep 2017 06:09:27 -0400 (EDT) Received: from rock.gnat.com ([127.0.0.1]) by localhost (rock.gnat.com [127.0.0.1]) (amavisd-new, port 10024) with LMTP id K33IWb36Rr3N; Thu, 7 Sep 2017 06:09:27 -0400 (EDT) Received: from tron.gnat.com (tron.gnat.com [IPv6:2620:20:4000:0:46a8:42ff:fe0e:e294]) by rock.gnat.com (Postfix) with ESMTP id E0E1756179; Thu, 7 Sep 2017 06:09:27 -0400 (EDT) Received: by tron.gnat.com (Postfix, from userid 4192) id DFEDC4FC; Thu, 7 Sep 2017 06:09:27 -0400 (EDT) Date: Thu, 7 Sep 2017 06:09:27 -0400 From: Arnaud Charlet To: gcc-patches@gcc.gnu.org Cc: Bob Duff Subject: [Ada] Return raise with access class-wide interface Message-ID: <20170907100927.GA69543@adacore.com> MIME-Version: 1.0 Content-Disposition: inline User-Agent: Mutt/1.5.23 (2014-03-12) This patches fixes a bug in which a function returns an anonymous access type whose designated type is a class-wide interface type, and the return statement returns a raise expression, the compiler crashes. Tested on x86_64-pc-linux-gnu, committed on trunk 2017-09-07 Bob Duff * sem_ch6.adb (Analyze_Function_Return): Do not insert an explicit conversion to force the displacement of the "this" pointer to reference the secondary dispatch table in the case where the return statement is returning a raise expression, as in "return raise ...". Index: sem_ch6.adb =================================================================== --- sem_ch6.adb (revision 251835) +++ sem_ch6.adb (working copy) @@ -910,7 +910,7 @@ if Expander_Active and then Serious_Errors_Detected = 0 and then Is_Access_Type (R_Type) - and then Nkind (Expr) /= N_Null + and then not Nkind_In (Expr, N_Null, N_Raise_Expression) and then Is_Interface (Designated_Type (R_Type)) and then Is_Progenitor (Designated_Type (R_Type), Designated_Type (Etype (Expr)))