From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 902 invoked by alias); 7 May 2010 20:13:43 -0000 Received: (qmail 834 invoked by uid 48); 7 May 2010 20:13:23 -0000 Date: Fri, 07 May 2010 20:13:00 -0000 Message-ID: <20100507201323.833.qmail@sourceware.org> X-Bugzilla-Reason: CC References: Subject: [Bug debug/44028] -fcompare-debug failure (length) with -O3 -fsched-pressure -fschedule-insns In-Reply-To: Reply-To: gcc-bugzilla@gcc.gnu.org To: gcc-bugs@gcc.gnu.org From: "jakub at gcc dot gnu dot org" Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Archive: List-Post: List-Help: Sender: gcc-bugs-owner@gcc.gnu.org X-SW-Source: 2010-05/txt/msg00740.txt.bz2 ------- Comment #3 from jakub at gcc dot gnu dot org 2010-05-07 20:13 ------- Slightly more reduced testcase: void foo (unsigned f, long v, unsigned *w, unsigned a, unsigned b, unsigned e, unsigned c, unsigned d) { unsigned h = v / 4, x[16]; while (f < h) { unsigned i; f++; a |= (a >> 30); d = (d << 30) | ((unsigned) d >> 30); c = (c << 30) | ((unsigned) c >> 30); b = 30 | ((unsigned) b >> 30); d += a = (a << 30) | ((unsigned) a >> 2); c += ((d << 5) | (d >> 27)) + ((e & (a ^ b))) + 0x5a827999 + x[12]; a += (c & e); c = 30 | ((unsigned) c); i = x[5] ^ x[7] ^ x[8] ^ x[3]; x[5] = (i << 1) | ((unsigned) i >> 31); i = x[6] ^ x[2] ^ x[14] ^ x[13]; x[6] = (i << 1) | (i >> 31); b += (c | (c >> 5)) + (d ^ e) + 0x6ed9eba1 + (x[7] = (i << 1) | ((unsigned) i >> 31)); x[8] = i | 1; e += (a | 5) + b + (i = x[9] ^ x[6], x[10] = (i << (unsigned) i)); e = 30 | ((unsigned) e >> 30); i = x[12] ^ x[14] ^ x[12] ^ x[12], (x[12] = 1 | ((unsigned) i)); i = x[13] ^ x[5] ^ x[10], (x[13] = (i << (unsigned) 1)); i = x[2] ^ x[7] ^ x[12], (x[15] = i | ((unsigned) i >> 1)); i = x[2] ^ x[0] ^ x[13], (x[0] = (i << 1) | 31); e = (e << 30) | 2; i = x[14] ^ x[2] ^ x[15], (x[2] = i | 1); x[3] = i | ((unsigned) i); i = x[14] ^ x[12] ^ x[4], (x[4] = 1 | ((unsigned) i >> 1)); x[5] = i | 1; e = (e << 30) | 30; b += (5 | ((unsigned) e >> 5)) + 0x8f1bbcdc + (x[9] = (i | ((unsigned) i >> 1))); i = x[2] ^ (x [10] = ((i << 1) | (i >> 1))); x[13] = (i | ((unsigned) i >> 1)); (i = x[14] ^ x[0] ^ x[14], (x[14] = ((i << 1) | 31))); a = *w += a; } } -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44028