From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 4341 invoked by alias); 24 Dec 2002 20:26:05 -0000 Mailing-List: contact gcc-prs-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Archive: List-Post: List-Help: Sender: gcc-prs-owner@gcc.gnu.org Received: (qmail 4305 invoked by uid 71); 24 Dec 2002 20:26:02 -0000 Date: Tue, 24 Dec 2002 12:26:00 -0000 Message-ID: <20021224202602.4302.qmail@sources.redhat.com> To: nobody@gcc.gnu.org Cc: gcc-prs@gcc.gnu.org, From: Janis Johnson Subject: Re: c/8730: [3.2/3.3 regression] Cannot compile C function inside other C function Reply-To: Janis Johnson X-SW-Source: 2002-12/txt/msg01264.txt.bz2 List-Id: The following reply was made to PR c/8730; it has been noted by GNATS. From: Janis Johnson To: info@ilghiz.com, gcc-gnats@gcc.gnu.org, gcc-prs@gcc.gnu.org, ilgis@num.uni-sb.de, gcc-bugs@gcc.gnu.org, nobody@gcc.gnu.org Cc: Subject: Re: c/8730: [3.2/3.3 regression] Cannot compile C function inside other C function Date: Tue, 24 Dec 2002 12:26:10 -0800 The regression reported in PR c/8730 showed up starting with this large patch from long, long ago: Sat Nov 27 08:38:26 1999 Richard Kenner * fold-const.c (negate_expr, associate_trees, extract_muldiv): New. (split_tree): Completely rework to make more general. (make_range, fold): Call negate_expr. (fold, case NEGATE_EXPR): Simplify -(a-b) is -ffast-math. (fold, associate): Call new split_tree and associate_trees. (fold, case MULT_EXPR, case *_{DIV,MOD}_EXPR): Call extract_muldiv. Here's a small test case that causes the compiler to ICE when compiled on i686-linux with the mainline: ------------------- void foo() { void *bar (int i, int A[1][i]) { return A[0]; }; }; ------------------- The behavior changes with the same patch for the submitter's test case. Output from the the mainline: 8730.c: In function `bar': 8730.c:2: internal compiler error: in expand_expr, at expr.c:6823 Please submit a full bug report, with preprocessed source if appropriate. See for instructions. http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=8730