From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 31958 invoked by alias); 17 Apr 2003 01:26:01 -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 31944 invoked by uid 71); 17 Apr 2003 01:26:01 -0000 Date: Thu, 17 Apr 2003 01:26:00 -0000 Message-ID: <20030417012601.31943.qmail@sources.redhat.com> To: nobody@gcc.gnu.org Cc: gcc-prs@gcc.gnu.org, From: sayle@gcc.gnu.org Subject: c/10175 Reply-To: sayle@gcc.gnu.org X-SW-Source: 2003-04/txt/msg00790.txt.bz2 List-Id: The following reply was made to PR c/10175; it has been noted by GNATS. From: sayle@gcc.gnu.org To: gcc-gnats@gcc.gnu.org Cc: Subject: c/10175 Date: 17 Apr 2003 01:22:51 -0000 CVSROOT: /cvs/gcc Module name: gcc Changes by: sayle@gcc.gnu.org 2003-04-17 01:22:51 Modified files: gcc : ChangeLog c-semantics.c Makefile.in gcc/testsuite : ChangeLog Added files: gcc/testsuite/gcc.dg: Wunreachable-5.c gcc/testsuite/gcc.c-torture/execute: medce-1.c medce-2.c Log message: 2003-04-16 Roger Sayle * c-semantics.c (find_reachable_label): New function to find a potentially reachable label in an expression. (expand_unreachable_if_stmt): Similar to expand_if_stmt but assumes the start of the IF_STMT is unreachable (dead) code. (expand_unreachable_stmt): Similar to expand_stmt but assumes the start of the statement list is unreachable (dead) code. (genrtl_if_stmt): If the controlling expression of the IF is constant, use expand_unreachable_stmt for the THEN or ELSE clause as appropriate. (genrtl_switch_stmt): Use expand_unreachable_stmt to expand the body of a SWITCH statement. (expand_stmt): The code immediately following a "return", "break", "continue" or "goto" is unreachable. * Makefile.in (c-semantics.o): Depend upon tree-inline.h. * gcc.dg/Wunreachable-5.c: New test case for PR c/10175. * gcc.c-torture/execute/medce-1.c: New test case. * gcc.c-torture/execute/medce-2.c: New test case. Patches: http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&r1=1.17475&r2=1.17476 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/c-semantics.c.diff?cvsroot=gcc&r1=1.53&r2=1.54 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/Makefile.in.diff?cvsroot=gcc&r1=1.1034&r2=1.1035 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&r1=1.2598&r2=1.2599 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.dg/Wunreachable-5.c.diff?cvsroot=gcc&r1=NONE&r2=1.1 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.c-torture/execute/medce-1.c.diff?cvsroot=gcc&r1=NONE&r2=1.1 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.c-torture/execute/medce-2.c.diff?cvsroot=gcc&r1=NONE&r2=1.1