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From: "steven at gcc dot gnu dot org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/28230] [4.2 Regression] -O2 -fwrapv miscompiles gcc, binutils, gzip.
Date: Sun, 24 Sep 2006 10:05:00 -0000 [thread overview]
Message-ID: <20060924100507.24582.qmail@sourceware.org> (raw)
In-Reply-To: <bug-28230-7667@http.gcc.gnu.org/bugzilla/>
------- Comment #14 from steven at gcc dot gnu dot org 2006-09-24 10:05 -------
Value ranges after VRP without -fwrapv:
e_1: VARYING
n_2: VARYING
e_3: VARYING
tn_4: VARYING
D.1875_5: [0, 65535] EQUIVALENCES: { } (0 elements)
bb_6: VARYING
D.1876_7: [0, +INF] EQUIVALENCES: { } (0 elements)
n_8: [0, +INF] EQUIVALENCES: { } (0 elements)
e_9: VARYING
e_11: VARYING
e_12: [n_2 + 1, +INF] EQUIVALENCES: { e_1 e_21 } (2 elements)
e_13: [e_3, e_3] EQUIVALENCES: { e_3 } (1 elements)
D.1878_14: [0, +INF] EQUIVALENCES: { } (0 elements)
n_15: [0, +INF] EQUIVALENCES: { } (0 elements)
D.1879_16: VARYING
SMT.5_17: VARYING
SMT.5_18: VARYING
e_21: [n_2 + 1, +INF] EQUIVALENCES: { e_1 } (1 elements)
Value ranges after VRP with -fwrapv:
e_1: VARYING
n_2: [0, 65534] EQUIVALENCES: { } (0 elements)
e_3: VARYING
tn_4: VARYING
D.1875_5: [0, 65535] EQUIVALENCES: { } (0 elements)
bb_6: VARYING
D.1876_7: [0, +INF] EQUIVALENCES: { } (0 elements)
n_8: [0, 65534] EQUIVALENCES: { } (0 elements)
e_9: VARYING
e_11: VARYING
e_12: [1, +INF] EQUIVALENCES: { e_1 e_21 } (2 elements)
e_13: [e_3, e_3] EQUIVALENCES: { e_3 } (1 elements)
D.1878_14: [0, +INF] EQUIVALENCES: { } (0 elements)
n_15: [1, 65534] EQUIVALENCES: { } (0 elements)
D.1879_16: VARYING
SMT.5_17: VARYING
SMT.5_18: VARYING
e_21: [1, +INF] EQUIVALENCES: { e_1 } (1 elements)
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28230
next prev parent reply other threads:[~2006-09-24 10:05 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-07-03 8:40 [Bug other/28230] New: ICE during profiled bootstrap pluto at agmk dot net
2006-07-03 11:25 ` [Bug other/28230] " pluto at agmk dot net
2006-07-04 21:16 ` pluto at agmk dot net
2006-08-03 20:39 ` [Bug other/28230] ICE during bootstrap (-O2 -fwrapv issue) pluto at agmk dot net
2006-08-03 20:41 ` pluto at agmk dot net
2006-08-03 20:42 ` pluto at agmk dot net
2006-09-01 20:11 ` pluto at agmk dot net
2006-09-19 13:08 ` [Bug other/28230] -O2 -fwrapv miscompiles gcc, binutils, gzip pluto at agmk dot net
2006-09-20 20:44 ` pluto at agmk dot net
2006-09-20 20:45 ` pluto at agmk dot net
2006-09-20 23:31 ` pluto at agmk dot net
2006-09-21 3:31 ` [Bug tree-optimization/28230] [4.2 Regression] " pinskia at gcc dot gnu dot org
2006-09-21 3:37 ` pinskia at gcc dot gnu dot org
2006-09-24 9:58 ` steven at gcc dot gnu dot org
2006-09-24 10:05 ` steven at gcc dot gnu dot org [this message]
2006-09-24 10:08 ` steven at gcc dot gnu dot org
2006-09-24 10:11 ` steven at gcc dot gnu dot org
2006-10-01 22:56 ` mmitchel at gcc dot gnu dot org
2006-10-10 14:33 ` rguenth at gcc dot gnu dot org
2006-10-11 10:45 ` patchapp at dberlin dot org
2006-10-11 16:06 ` rguenth at gcc dot gnu dot org
2006-10-11 16:06 ` rguenth at gcc dot gnu dot org
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