From patchwork Fri Dec 13 09:55:01 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Pierre-Marie de Rodat X-Patchwork-Id: 1209059 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=gcc.gnu.org (client-ip=209.132.180.131; helo=sourceware.org; envelope-from=gcc-patches-return-515858-incoming=patchwork.ozlabs.org@gcc.gnu.org; receiver=) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=adacore.com Authentication-Results: ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=gcc.gnu.org header.i=@gcc.gnu.org header.b="HwjO0ai1"; 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 47Z5gW109lz9sP6 for ; Fri, 13 Dec 2019 20:57:26 +1100 (AEDT) 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=Vea1Sd1cWRJjUFttBuUmOWnleB1QRltqDjG9x6XyEWdTZrwavI NtOVUVBVVJKYEOVprOAPo0CUAvkxi8OJzTfbgqr09MIFKDbzwN034fB4gxq8455v E21288U4XW1z02Aq8wTTrL5thpuzvgUlyTrgGBRDg3S8lWpRHzy9oguvE= 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=xN0F57lJt7Pl6pKrE2uBSWGGMkY=; b=HwjO0ai1eS/WmGfWXNwA lkY+yS252+1b4MGeN935D6Fb2CYvtFXN1D96Si18Dhqh28840ygm3ctoSmO204IL yYThKKeEU767fedRT++mloFWwIQc6Bd278vwk83tlaC9Rd10aJYYz1HlOV2G5h4H fUsgQB42YLEKOWQ0IGN01xs= Received: (qmail 37079 invoked by alias); 13 Dec 2019 09:55:12 -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 36889 invoked by uid 89); 13 Dec 2019 09:55:10 -0000 Authentication-Results: sourceware.org; auth=none X-Spam-SWARE-Status: No, score=-11.1 required=5.0 tests=BAYES_00, GIT_PATCH_2, GIT_PATCH_3, SPF_NEUTRAL autolearn=ham version=3.3.1 spammy= X-HELO: eggs.gnu.org Received: from eggs.gnu.org (HELO eggs.gnu.org) (209.51.188.92) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with ESMTP; Fri, 13 Dec 2019 09:55:09 +0000 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ifhf9-0006QL-8H for gcc-patches@gcc.gnu.org; Fri, 13 Dec 2019 04:55:08 -0500 Received: from rock.gnat.com ([2620:20:4000:0:a9e:1ff:fe9b:1d1]:42134) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1ifhf9-0006PG-1j for gcc-patches@gcc.gnu.org; Fri, 13 Dec 2019 04:55:07 -0500 Received: from localhost (localhost.localdomain [127.0.0.1]) by filtered-rock.gnat.com (Postfix) with ESMTP id 0AB08560DD; Fri, 13 Dec 2019 04:55:02 -0500 (EST) 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 Yjl3euq+ZlCy; Fri, 13 Dec 2019 04:55:01 -0500 (EST) 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 CB348560CF; Fri, 13 Dec 2019 04:55:01 -0500 (EST) Received: by tron.gnat.com (Postfix, from userid 4862) id CA586157; Fri, 13 Dec 2019 04:55:01 -0500 (EST) Date: Fri, 13 Dec 2019 04:55:01 -0500 From: Pierre-Marie de Rodat To: gcc-patches@gcc.gnu.org Cc: Javier Miranda Subject: [Ada] Adding support for unsupported type conversion in CCG Message-ID: <20191213095501.GA13995@adacore.com> MIME-Version: 1.0 Content-Disposition: inline User-Agent: Mutt/1.5.23 (2014-03-12) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x [fuzzy] X-Received-From: 2620:20:4000:0:a9e:1ff:fe9b:1d1 X-IsSubscribed: yes Generate an extra temporary for the unchecked conversion of a function call returning a composite type, and for the unchecked conversion to a composite type of a function call returning a discrete type (since the C backend does not support such cases). Tested on x86_64-pc-linux-gnu, committed on trunk 2019-12-13 Javier Miranda gcc/ada/ * exp_ch4.adb (Expand_N_Unchecked_Type_Conversion): Generate an extra temporary for cases unsupported by the C backend. --- gcc/ada/exp_ch4.adb +++ gcc/ada/exp_ch4.adb @@ -12471,6 +12471,27 @@ package body Exp_Ch4 is end; end if; + -- Generate an extra temporary for cases unsupported by the C backend + + if Modify_Tree_For_C then + declare + Source : constant Node_Id := Unqual_Conv (Expression (N)); + Source_Typ : Entity_Id := Get_Full_View (Etype (Source)); + + begin + if Is_Packed_Array (Source_Typ) then + Source_Typ := Packed_Array_Impl_Type (Source_Typ); + end if; + + if Nkind (Source) = N_Function_Call + and then (Is_Composite_Type (Etype (Source)) + or else Is_Composite_Type (Target_Type)) + then + Force_Evaluation (Source); + end if; + end; + end if; + -- Nothing to do if conversion is safe if Safe_Unchecked_Type_Conversion (N) then