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From: "howarth at nitro dot med dot uc dot edu" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug middle-end/42181] New: -fgraphite-identity miscompiles or ICEs on air.f90
Date: Thu, 26 Nov 2009 02:53:00 -0000 [thread overview]
Message-ID: <bug-42181-11113@http.gcc.gnu.org/bugzilla/> (raw)
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The Polyhedron 2005 benchmark air.f90 is miscompiled at -O2 -fgraphite-identity
such that it produces incorrect results...
AIRFLOW IN A BOX
Version 2.0
(c) Hanley Innovations 1995
1.00000000000000002E-002 0.29999999999999999 10.000000000000000
0.10000000000000001 0
272.76999999999998 272.76999999999998 272.76999999999998
272.76999999999998 0.0000000000000000
11 12
X-DATA
1 0.0000000000000000 0.10000000000000001 4
2 5.00000000000000028E-002 0.22000000000000000 4
3 0.10000000000000001 0.29999999999999999 4
4 0.20000000000000001 0.40000000000000002 4
5 0.29999999999999999 0.50000000000000000 4
6 0.40000000000000002 0.59999999999999998 4
7 0.50000000000000000 0.69999999999999996 4
8 0.59999999999999998 0.80000000000000004 4
9 0.69999999999999996 0.90000000000000002 4
10 0.80000000000000004 0.96999999999999997 4
11 0.90000000000000002 1.0000000000000000 4
Y-DATA
0.0000000000000000 0.10000000000000001 4
4.00000000000000008E-002 0.14999999999999999 4
8.00000000000000017E-002 0.20000000000000001 4
0.14999999999999999 0.29999999999999999 4
0.20000000000000001 0.40000000000000002 4
0.29999999999999999 0.50000000000000000 4
0.40000000000000002 0.59999999999999998 4
0.50000000000000000 0.69999999999999996 4
0.59999999999999998 0.80000000000000004 4
0.69999999999999996 0.89000000000000001 4
0.80000000000000004 0.94999999999999996 4
0.94999999999999996 1.0000000000000000 4
ITERATION# TIME FINAL MASS RESIDUAL
3 100.000005723761 0.01000000 NaN
deltat, final t, iterations
100.00000000000000 100.00000572376112 3
3 NaN
When compiling air.f90 with -O1 -fgraphite-identity, the gfortran compiler
ICEs...
air.f90: In function ‘state_’:
air.f90:1034:0: internal compiler error: in scan_tree_for_params, at
graphite-sese-to-poly.c:853
Using built-in specs.
COLLECT_GCC=gfortran
COLLECT_LTO_WRAPPER=/sw/lib/gcc4.5/libexec/gcc/x86_64-apple-darwin10.2.0/4.5.0/lto-wrapper
Target: x86_64-apple-darwin10.2.0
Configured with: ../gcc-4.5-20091125/configure --prefix=/sw
--prefix=/sw/lib/gcc4.5 --mandir=/sw/share/man --infodir=/sw/share/info
--enable-languages=c,c++,fortran,objc,obj-c++,java --with-gmp=/sw
--with-libiconv-prefix=/sw --with-ppl=/sw --with-cloog=/sw --with-mpc=/sw
--with-system-zlib --x-includes=/usr/X11R6/include --x-libraries=/usr/X11R6/lib
--disable-libjava-multilib
Thread model: posix
gcc version 4.5.0 20091125 (experimental) (GCC)
--
Summary: -fgraphite-identity miscompiles or ICEs on air.f90
Product: gcc
Version: 4.5.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: middle-end
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: howarth at nitro dot med dot uc dot edu
GCC build triplet: x86_64-apple-darwin10
GCC host triplet: x86_64-apple-darwin10
GCC target triplet: x86_64-apple-darwin10
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42181
next reply other threads:[~2009-11-26 2:53 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-11-26 2:53 howarth at nitro dot med dot uc dot edu [this message]
2009-11-26 17:03 ` [Bug middle-end/42181] " jv244 at cam dot ac dot uk
2009-11-26 17:04 ` jv244 at cam dot ac dot uk
2009-11-26 17:05 ` [Bug middle-end/42181] [4.5 Regression] " jv244 at cam dot ac dot uk
2009-11-27 11:32 ` rguenth at gcc dot gnu dot org
2009-12-14 19:03 ` spop at gcc dot gnu dot org
2009-12-14 19:03 ` spop at gcc dot gnu dot org
2009-12-23 7:50 ` spop at gcc dot gnu dot org
2009-12-24 0:14 ` howarth at nitro dot med dot uc dot edu
2009-12-24 0:15 ` howarth at nitro dot med dot uc dot edu
2009-12-24 0:18 ` howarth at nitro dot med dot uc dot edu
2009-12-24 0:20 ` howarth at nitro dot med dot uc dot edu
2009-12-24 8:13 ` dominiq at lps dot ens dot fr
2010-01-14 16:57 ` trifunovic at gcc dot gnu dot org
2010-01-14 19:25 ` spop at gcc dot gnu dot org
2010-02-06 17:44 ` [Bug middle-end/42181] [4.5 Regression][graphite] " spop at gcc dot gnu dot org
2010-03-08 23:09 ` [Bug middle-end/42181] [4.5 Regression][graphite] -fgraphite-identity miscompiles air.f90 howarth at nitro dot med dot uc dot edu
2010-03-08 23:16 ` spop at gcc dot gnu dot org
2010-03-09 2:26 ` howarth at nitro dot med dot uc dot edu
2010-03-09 2:34 ` howarth at nitro dot med dot uc dot edu
2010-03-09 2:35 ` howarth at nitro dot med dot uc dot edu
2010-03-09 2:37 ` howarth at nitro dot med dot uc dot edu
2010-03-09 3:45 ` howarth at nitro dot med dot uc dot edu
2010-03-09 3:49 ` howarth at nitro dot med dot uc dot edu
2010-03-09 13:32 ` dominiq at lps dot ens dot fr
2010-03-09 22:31 ` spop at gcc dot gnu dot org
2010-03-14 11:40 ` dominiq at lps dot ens dot fr
2010-03-20 10:45 ` dominiq at lps dot ens dot fr
2010-03-21 16:28 ` Sebastian Pop
2010-03-21 16:28 ` sebpop at gmail dot com
2010-03-23 20:08 ` spop at gcc dot gnu dot org
2010-03-23 21:24 ` spop at gcc dot gnu dot org
2010-03-23 21:28 ` spop at gcc dot gnu dot org
2010-03-24 20:18 ` spop at gcc dot gnu dot org
2010-03-24 21:35 ` howarth at nitro dot med dot uc dot edu
2010-03-25 17:43 ` Sebastian Pop
2010-03-26 9:58 ` Richard Guenther
2010-03-25 17:44 ` sebpop at gmail dot com
2010-03-26 9:58 ` rguenther at suse dot de
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