From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: 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-Archive: List-Post: List-Help: Sender: gcc-patches-owner@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, 07 Sep 2017 10:09:00 -0000 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-Type: multipart/mixed; boundary="Q68bSM7Ycu6FN28Q" Content-Disposition: inline User-Agent: Mutt/1.5.23 (2014-03-12) X-SW-Source: 2017-09/txt/msg00438.txt.bz2 --Q68bSM7Ycu6FN28Q Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-length: 573 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 ...". --Q68bSM7Ycu6FN28Q Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=difs Content-length: 623 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))) --Q68bSM7Ycu6FN28Q--