From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 26726 invoked by alias); 6 Oct 2005 16:17:42 -0000 Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Archive: List-Post: List-Help: Sender: gcc-bugs-owner@gcc.gnu.org Received: (qmail 26618 invoked by uid 48); 6 Oct 2005 16:17:36 -0000 Date: Thu, 06 Oct 2005 16:17:00 -0000 Message-ID: <20051006161736.26617.qmail@sourceware.org> X-Bugzilla-Reason: CC References: Subject: [Bug tree-optimization/24231] [4.1 Regression] ICE: SSA corruption In-Reply-To: Reply-To: gcc-bugzilla@gcc.gnu.org To: gcc-bugs@gcc.gnu.org From: "pinskia at gcc dot gnu dot org" X-SW-Source: 2005-10/txt/msg00652.txt.bz2 List-Id: ------- Comment #6 from pinskia at gcc dot gnu dot org 2005-10-06 16:17 ------- This is a PRE bug as far as I can tell. The diff between reassoc and PRE: : theTempManager_86 = theTemp$m_memoryManager_265(ab); # VUSE ; D.1851_87 = theTemp.m_memoryManager; theTemp$m_memoryManager_268(ab) = D.1851_87; # SFT.15_213 = V_MUST_DEF ; theTemp.m_memoryManager = theTempManager_86; # SFT.14_214 = V_MUST_DEF ; theTemp.m_size = 0; - # VUSE ; - D.1852_90 = theTemp.m_memoryManager; + D.1852_90 = theTemp$m_memoryManager_265(ab); # VUSE ; # VUSE ; D.1853_92 = D.1852_90->_vptr$MemoryManager; # VUSE ; # VUSE ; D.1854_93 = *D.1853_92; # SFT.14_215(ab) = V_MAY_DEF ; # SFT.15_216(ab) = V_MAY_DEF ; OBJ_TYPE_REF(D.1854_93;D.1852_90->0) (D.1852_90); goto (); Notice how both theTemp$m_memoryManager_265 and theTemp$m_memoryManager_268 are alive. -- pinskia at gcc dot gnu dot org changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |dberlin at gcc dot gnu dot | |org GCC target triplet| |powerpc-*-* Known to fail|4.1.0 | Known to work|3.3.2 4.0.2 |3.3.2 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24231