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* [Bug tree-optimization/43000] New: [4.5 Regression] VRP miscompiles python with -fwrapv
@ 2010-02-08 16:49 rguenth at gcc dot gnu dot org
2010-02-08 16:49 ` [Bug tree-optimization/43000] " rguenth at gcc dot gnu dot org
` (4 more replies)
0 siblings, 5 replies; 6+ messages in thread
From: rguenth at gcc dot gnu dot org @ 2010-02-08 16:49 UTC (permalink / raw)
To: gcc-bugs
It miscompiles
if (need <= i) {
in filterstring inlined to builtin_filter in Python/bltinmodule.c.
Testcase:
int __attribute__((noinline))
foo (long i, long j)
{
if (i >= 1)
if (j > -9223372036854775807L)
{
long x;
j--;
x = i + j;
if (x >= 0)
return 1;
}
return 0;
}
int main()
{
if (foo (1, 1) != 1)
abort ();
return 0;
}
--
Summary: [4.5 Regression] VRP miscompiles python with -fwrapv
Product: gcc
Version: 4.5.0
Status: UNCONFIRMED
Keywords: wrong-code
Severity: normal
Priority: P3
Component: tree-optimization
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: rguenth at gcc dot gnu dot org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43000
^ permalink raw reply [flat|nested] 6+ messages in thread* [Bug tree-optimization/43000] [4.5 Regression] VRP miscompiles python with -fwrapv 2010-02-08 16:49 [Bug tree-optimization/43000] New: [4.5 Regression] VRP miscompiles python with -fwrapv rguenth at gcc dot gnu dot org @ 2010-02-08 16:49 ` rguenth at gcc dot gnu dot org 2010-02-09 10:11 ` rguenth at gcc dot gnu dot org ` (3 subsequent siblings) 4 siblings, 0 replies; 6+ messages in thread From: rguenth at gcc dot gnu dot org @ 2010-02-08 16:49 UTC (permalink / raw) To: gcc-bugs ------- Comment #1 from rguenth at gcc dot gnu dot org 2010-02-08 16:49 ------- Mine. -- rguenth at gcc dot gnu dot org changed: What |Removed |Added ---------------------------------------------------------------------------- AssignedTo|unassigned at gcc dot gnu |rguenth at gcc dot gnu dot |dot org |org Status|UNCONFIRMED |ASSIGNED Ever Confirmed|0 |1 Known to work| |4.4.3 4.3.4 Last reconfirmed|0000-00-00 00:00:00 |2010-02-08 16:49:47 date| | Target Milestone|--- |4.5.0 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43000 ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug tree-optimization/43000] [4.5 Regression] VRP miscompiles python with -fwrapv 2010-02-08 16:49 [Bug tree-optimization/43000] New: [4.5 Regression] VRP miscompiles python with -fwrapv rguenth at gcc dot gnu dot org 2010-02-08 16:49 ` [Bug tree-optimization/43000] " rguenth at gcc dot gnu dot org @ 2010-02-09 10:11 ` rguenth at gcc dot gnu dot org 2010-02-09 11:34 ` rguenth at gcc dot gnu dot org ` (2 subsequent siblings) 4 siblings, 0 replies; 6+ messages in thread From: rguenth at gcc dot gnu dot org @ 2010-02-09 10:11 UTC (permalink / raw) To: gcc-bugs ------- Comment #2 from rguenth at gcc dot gnu dot org 2010-02-09 10:10 ------- *** Bug 43002 has been marked as a duplicate of this bug. *** -- rguenth at gcc dot gnu dot org changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |zsojka at seznam dot cz http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43000 ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug tree-optimization/43000] [4.5 Regression] VRP miscompiles python with -fwrapv 2010-02-08 16:49 [Bug tree-optimization/43000] New: [4.5 Regression] VRP miscompiles python with -fwrapv rguenth at gcc dot gnu dot org 2010-02-08 16:49 ` [Bug tree-optimization/43000] " rguenth at gcc dot gnu dot org 2010-02-09 10:11 ` rguenth at gcc dot gnu dot org @ 2010-02-09 11:34 ` rguenth at gcc dot gnu dot org 2010-02-09 11:35 ` rguenth at gcc dot gnu dot org 2010-02-23 17:07 ` hjl at gcc dot gnu dot org 4 siblings, 0 replies; 6+ messages in thread From: rguenth at gcc dot gnu dot org @ 2010-02-09 11:34 UTC (permalink / raw) To: gcc-bugs ------- Comment #3 from rguenth at gcc dot gnu dot org 2010-02-09 11:34 ------- Subject: Bug 43000 Author: rguenth Date: Tue Feb 9 11:34:28 2010 New Revision: 156621 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=156621 Log: 2010-02-09 Richard Guenther <rguenther@suse.de> PR tree-optimization/43000 * tree-vrp.c (vrp_int_const_binop): Only handle unsigned arithmetic manually. * gcc.dg/torture/pr43000.c: New testcase. * gcc.dg/torture/pr43002.c: Likewise. Added: trunk/gcc/testsuite/gcc.dg/torture/pr43000.c trunk/gcc/testsuite/gcc.dg/torture/pr43002.c Modified: trunk/gcc/ChangeLog trunk/gcc/testsuite/ChangeLog trunk/gcc/tree-vrp.c -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43000 ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug tree-optimization/43000] [4.5 Regression] VRP miscompiles python with -fwrapv 2010-02-08 16:49 [Bug tree-optimization/43000] New: [4.5 Regression] VRP miscompiles python with -fwrapv rguenth at gcc dot gnu dot org ` (2 preceding siblings ...) 2010-02-09 11:34 ` rguenth at gcc dot gnu dot org @ 2010-02-09 11:35 ` rguenth at gcc dot gnu dot org 2010-02-23 17:07 ` hjl at gcc dot gnu dot org 4 siblings, 0 replies; 6+ messages in thread From: rguenth at gcc dot gnu dot org @ 2010-02-09 11:35 UTC (permalink / raw) To: gcc-bugs ------- Comment #4 from rguenth at gcc dot gnu dot org 2010-02-09 11:35 ------- Fixed. -- rguenth at gcc dot gnu dot org changed: What |Removed |Added ---------------------------------------------------------------------------- Status|ASSIGNED |RESOLVED Resolution| |FIXED http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43000 ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug tree-optimization/43000] [4.5 Regression] VRP miscompiles python with -fwrapv 2010-02-08 16:49 [Bug tree-optimization/43000] New: [4.5 Regression] VRP miscompiles python with -fwrapv rguenth at gcc dot gnu dot org ` (3 preceding siblings ...) 2010-02-09 11:35 ` rguenth at gcc dot gnu dot org @ 2010-02-23 17:07 ` hjl at gcc dot gnu dot org 4 siblings, 0 replies; 6+ messages in thread From: hjl at gcc dot gnu dot org @ 2010-02-23 17:07 UTC (permalink / raw) To: gcc-bugs ------- Comment #5 from hjl at gcc dot gnu dot org 2010-02-23 17:04 ------- Subject: Bug 43000 Author: hjl Date: Tue Feb 23 17:02:26 2010 New Revision: 157010 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=157010 Log: Backport testcases from mainline. 2010-02-23 H.J. Lu <hongjiu.lu@intel.com> Backport from mainline: 2010-02-22 Richard Guenther <rguenther@suse.de> PR tree-optimization/42749 * gcc.c-torture/compile/pr42749.c: New testcase. 2010-02-21 Dodji Seketeli <dodji@redhat.com> PR c++/42824 * g++.dg/template/memclass4.C: New test. 2010-02-20 Paul Thomas <pault@gcc.gnu.org> PR fortran/43111 * gfortran.dg/internal_pack_8.f90: New test. 2010-02-18 Jason Merrill <jason@redhat.com> PR c++/43109 * g++.dg/parse/namespace12.C: New. 2010-02-18 Martin Jambor <mjambor@suse.cz> PR tree-optimization/43066 * gcc.c-torture/compile/pr43066.c: New test. 2010-02-17 Jason Merrill <jason@redhat.com> PR c++/43069 * g++.dg/parse/namespace11.C: New. PR c++/43093 * g++.dg/ext/attrib37.C: New. PR c++/43079 * g++.dg/template/ptrmem20.C: New. 2010-02-16 Jason Merrill <jason@redhat.com> PR c++/43031 * g++.dg/ext/attrib36.C: New. 2010-02-15 Richard Guenther <rguenther@suse.de> PR middle-end/43068 * g++.dg/torture/pr43068.C: New testcase. 2010-02-11 Richard Guenther <rguenther@suse.de> PR tree-optimization/42998 * gcc.c-torture/compile/pr42998.c: New testcase. 2010-02-10 Richard Guenther <rguenther@suse.de> PR tree-optimization/43017 * gcc.dg/torture/pr43017.c: New testcase. 2010-02-10 Richard Guenther <rguenther@suse.de> PR c/43007 * gcc.c-torture/execute/20100209-1.c: New testcase. * gcc.dg/fold-div-3.c: Likewise. 2010-02-09 Jerry DeLisle <jvdelisle@gcc.gnu.org> PR fortran/42999 * gfortran.dg/array_constructor_35.f90: New test. 2010-02-09 Richard Guenther <rguenther@suse.de> PR tree-optimization/43008 * gcc.c-torture/execute/pr43008.c: New testcase. 2010-02-09 Richard Guenther <rguenther@suse.de> PR tree-optimization/43000 * gcc.dg/torture/pr43000.c: New testcase. * gcc.dg/torture/pr43002.c: Likewise. 2010-02-06 Jerry DeLisle <jvdelisle@gcc.gnu.org> PR libfortran/42742 * gfortran.dg/fmt_cache_2.f: New test. 2010-02-03 Jason Merrill <jason@redhat.com> PR c++/42870 * g++.dg/ext/dllexport3.C: New. Added: branches/gcc-4_4-branch/gcc/testsuite/g++.dg/ext/attrib36.C - copied unchanged from r157009, trunk/gcc/testsuite/g++.dg/ext/attrib36.C branches/gcc-4_4-branch/gcc/testsuite/g++.dg/ext/attrib37.C - copied unchanged from r157009, trunk/gcc/testsuite/g++.dg/ext/attrib37.C branches/gcc-4_4-branch/gcc/testsuite/g++.dg/ext/dllexport3.C - copied unchanged from r157009, trunk/gcc/testsuite/g++.dg/ext/dllexport3.C branches/gcc-4_4-branch/gcc/testsuite/g++.dg/parse/namespace11.C - copied unchanged from r157009, trunk/gcc/testsuite/g++.dg/parse/namespace11.C branches/gcc-4_4-branch/gcc/testsuite/g++.dg/parse/namespace12.C - copied unchanged from r157009, trunk/gcc/testsuite/g++.dg/parse/namespace12.C branches/gcc-4_4-branch/gcc/testsuite/g++.dg/template/memclass4.C - copied unchanged from r157009, trunk/gcc/testsuite/g++.dg/template/memclass4.C branches/gcc-4_4-branch/gcc/testsuite/g++.dg/template/ptrmem20.C - copied unchanged from r157009, trunk/gcc/testsuite/g++.dg/template/ptrmem20.C branches/gcc-4_4-branch/gcc/testsuite/g++.dg/torture/pr43068.C - copied unchanged from r157009, trunk/gcc/testsuite/g++.dg/torture/pr43068.C branches/gcc-4_4-branch/gcc/testsuite/gcc.c-torture/compile/pr42749.c - copied unchanged from r157009, trunk/gcc/testsuite/gcc.c-torture/compile/pr42749.c branches/gcc-4_4-branch/gcc/testsuite/gcc.c-torture/compile/pr42998.c - copied unchanged from r157009, trunk/gcc/testsuite/gcc.c-torture/compile/pr42998.c branches/gcc-4_4-branch/gcc/testsuite/gcc.c-torture/compile/pr43066.c - copied unchanged from r157009, trunk/gcc/testsuite/gcc.c-torture/compile/pr43066.c branches/gcc-4_4-branch/gcc/testsuite/gcc.c-torture/execute/20100209-1.c - copied unchanged from r157009, trunk/gcc/testsuite/gcc.c-torture/execute/20100209-1.c branches/gcc-4_4-branch/gcc/testsuite/gcc.c-torture/execute/pr43008.c - copied unchanged from r157009, trunk/gcc/testsuite/gcc.c-torture/execute/pr43008.c branches/gcc-4_4-branch/gcc/testsuite/gcc.dg/fold-div-3.c - copied unchanged from r157009, trunk/gcc/testsuite/gcc.dg/fold-div-3.c branches/gcc-4_4-branch/gcc/testsuite/gcc.dg/torture/pr43000.c - copied unchanged from r157009, trunk/gcc/testsuite/gcc.dg/torture/pr43000.c branches/gcc-4_4-branch/gcc/testsuite/gcc.dg/torture/pr43002.c - copied unchanged from r157009, trunk/gcc/testsuite/gcc.dg/torture/pr43002.c branches/gcc-4_4-branch/gcc/testsuite/gfortran.dg/array_constructor_35.f90 - copied unchanged from r157009, trunk/gcc/testsuite/gfortran.dg/array_constructor_35.f90 branches/gcc-4_4-branch/gcc/testsuite/gfortran.dg/fmt_cache_2.f - copied unchanged from r157009, trunk/gcc/testsuite/gfortran.dg/fmt_cache_2.f branches/gcc-4_4-branch/gcc/testsuite/gfortran.dg/internal_pack_8.f90 - copied unchanged from r157009, trunk/gcc/testsuite/gfortran.dg/internal_pack_8.f90 Modified: branches/gcc-4_4-branch/gcc/testsuite/ChangeLog -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43000 ^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2010-02-23 17:06 UTC | newest] Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2010-02-08 16:49 [Bug tree-optimization/43000] New: [4.5 Regression] VRP miscompiles python with -fwrapv rguenth at gcc dot gnu dot org 2010-02-08 16:49 ` [Bug tree-optimization/43000] " rguenth at gcc dot gnu dot org 2010-02-09 10:11 ` rguenth at gcc dot gnu dot org 2010-02-09 11:34 ` rguenth at gcc dot gnu dot org 2010-02-09 11:35 ` rguenth at gcc dot gnu dot org 2010-02-23 17:07 ` hjl at gcc dot gnu dot org
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