public inbox for gcc-bugs@sourceware.org
help / color / mirror / Atom feed
* [Bug fortran/45309] New: [4.6 Regression] gfortran.dg/trim_optimize_1.f90 has 4 memmove
@ 2010-08-17 14:00 burnus at gcc dot gnu dot org
2010-08-17 14:14 ` [Bug fortran/45309] " domob at gcc dot gnu dot org
` (4 more replies)
0 siblings, 5 replies; 6+ messages in thread
From: burnus at gcc dot gnu dot org @ 2010-08-17 14:00 UTC (permalink / raw)
To: gcc-bugs
The test case for PR 40628 has:
! { dg-final { scan-tree-dump-times "memmove" 2 "original" } }
However, the original dump has:
__builtin_memmove ((void *) &a, (void *) pstr.0, 3);
__builtin_memmove ((void *) &a, (void *) pstr.0, (integer(kind=8)) D.1558);
__builtin_memmove ((void *) &c, (void *) pstr.2, 4);
__builtin_memmove ((void *) &c, (void *) pstr.2, (integer(kind=8)) D.1566);
For some reasons, regtestings FAILs for me but not for Daniel K (who never the
less has 4 memmoves) - also gcc-testresults shows no failures.
Please check whether 4 or 2 memove are correct.
--
Summary: [4.6 Regression] gfortran.dg/trim_optimize_1.f90 has 4
memmove
Product: gcc
Version: 4.6.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: fortran
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: burnus at gcc dot gnu dot org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45309
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug fortran/45309] [4.6 Regression] gfortran.dg/trim_optimize_1.f90 has 4 memmove
2010-08-17 14:00 [Bug fortran/45309] New: [4.6 Regression] gfortran.dg/trim_optimize_1.f90 has 4 memmove burnus at gcc dot gnu dot org
@ 2010-08-17 14:14 ` domob at gcc dot gnu dot org
2010-08-17 16:44 ` mikael at gcc dot gnu dot org
` (3 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: domob at gcc dot gnu dot org @ 2010-08-17 14:14 UTC (permalink / raw)
To: gcc-bugs
------- Comment #1 from domob at gcc dot gnu dot org 2010-08-17 14:14 -------
Confirmed (from my point of view)
--
domob at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |domob at gcc dot gnu dot org
Status|UNCONFIRMED |NEW
Ever Confirmed|0 |1
Last reconfirmed|0000-00-00 00:00:00 |2010-08-17 14:14:32
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45309
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug fortran/45309] [4.6 Regression] gfortran.dg/trim_optimize_1.f90 has 4 memmove
2010-08-17 14:00 [Bug fortran/45309] New: [4.6 Regression] gfortran.dg/trim_optimize_1.f90 has 4 memmove burnus at gcc dot gnu dot org
2010-08-17 14:14 ` [Bug fortran/45309] " domob at gcc dot gnu dot org
@ 2010-08-17 16:44 ` mikael at gcc dot gnu dot org
2010-08-17 17:07 ` burnus at gcc dot gnu dot org
` (2 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: mikael at gcc dot gnu dot org @ 2010-08-17 16:44 UTC (permalink / raw)
To: gcc-bugs
------- Comment #2 from mikael at gcc dot gnu dot org 2010-08-17 16:44 -------
I'm somewhat out of date (revision 163221) and I only see 2 memmoves.
I don't see any string_trim either.
Note that the -O option changes the original tree dump.
I thought it only impacted later dumps.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45309
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug fortran/45309] [4.6 Regression] gfortran.dg/trim_optimize_1.f90 has 4 memmove
2010-08-17 14:00 [Bug fortran/45309] New: [4.6 Regression] gfortran.dg/trim_optimize_1.f90 has 4 memmove burnus at gcc dot gnu dot org
2010-08-17 14:14 ` [Bug fortran/45309] " domob at gcc dot gnu dot org
2010-08-17 16:44 ` mikael at gcc dot gnu dot org
@ 2010-08-17 17:07 ` burnus at gcc dot gnu dot org
2010-08-22 17:10 ` mikael at gcc dot gnu dot org
2010-08-22 19:45 ` mikael at gcc dot gnu dot org
4 siblings, 0 replies; 6+ messages in thread
From: burnus at gcc dot gnu dot org @ 2010-08-17 17:07 UTC (permalink / raw)
To: gcc-bugs
------- Comment #3 from burnus at gcc dot gnu dot org 2010-08-17 17:06 -------
(In reply to comment #2)
> Note that the -O option changes the original tree dump.
> I thought it only impacted later dumps.
OK, with -O I also only get
(MEM[(c_char * {ref-all})&b] = MEM[(c_char * {ref-all})"abcd"];, (void *) &b;);
__builtin_memmove ((void *) &a, (void *) &b, 3);
__builtin_memmove ((void *) &c, (void *) &a, 3);
Though, it does not explain the failures which I saw:
FAIL: gfortran.dg/trim_optimize_1.f90 -O0 scan-tree-dump-times original
"memmove" 2
FAIL: gfortran.dg/trim_optimize_1.f90 -O0 scan-tree-dump-times original
"string_trim" 0
(Ditto for "-O1" etc., but the "-O" in dg-options overrides the -O... options
from dg.exp thus one runs the program 8 times with the same options.)
However, currently,
make check-gfortran RUNTESTFLAGS='dg.exp=trim_optimize_1.f90
shows no failures. Thus, I close it as INVALID. Hopefully, it will continue to
work.
Mikael, thanks for the analysis!
--
burnus at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution| |INVALID
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45309
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug fortran/45309] [4.6 Regression] gfortran.dg/trim_optimize_1.f90 has 4 memmove
2010-08-17 14:00 [Bug fortran/45309] New: [4.6 Regression] gfortran.dg/trim_optimize_1.f90 has 4 memmove burnus at gcc dot gnu dot org
` (2 preceding siblings ...)
2010-08-17 17:07 ` burnus at gcc dot gnu dot org
@ 2010-08-22 17:10 ` mikael at gcc dot gnu dot org
2010-08-22 19:45 ` mikael at gcc dot gnu dot org
4 siblings, 0 replies; 6+ messages in thread
From: mikael at gcc dot gnu dot org @ 2010-08-22 17:10 UTC (permalink / raw)
To: gcc-bugs
------- Comment #4 from mikael at gcc dot gnu dot org 2010-08-22 17:10 -------
I'm seeing the failure now at revision 163459.
--
mikael at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|RESOLVED |REOPENED
Resolution|INVALID |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45309
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug fortran/45309] [4.6 Regression] gfortran.dg/trim_optimize_1.f90 has 4 memmove
2010-08-17 14:00 [Bug fortran/45309] New: [4.6 Regression] gfortran.dg/trim_optimize_1.f90 has 4 memmove burnus at gcc dot gnu dot org
` (3 preceding siblings ...)
2010-08-22 17:10 ` mikael at gcc dot gnu dot org
@ 2010-08-22 19:45 ` mikael at gcc dot gnu dot org
4 siblings, 0 replies; 6+ messages in thread
From: mikael at gcc dot gnu dot org @ 2010-08-22 19:45 UTC (permalink / raw)
To: gcc-bugs
------- Comment #5 from mikael at gcc dot gnu dot org 2010-08-22 19:45 -------
The patch for PR45380 fixes this.
*** This bug has been marked as a duplicate of 45380 ***
--
mikael at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|REOPENED |RESOLVED
Resolution| |DUPLICATE
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45309
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2010-08-22 19:45 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2010-08-17 14:00 [Bug fortran/45309] New: [4.6 Regression] gfortran.dg/trim_optimize_1.f90 has 4 memmove burnus at gcc dot gnu dot org
2010-08-17 14:14 ` [Bug fortran/45309] " domob at gcc dot gnu dot org
2010-08-17 16:44 ` mikael at gcc dot gnu dot org
2010-08-17 17:07 ` burnus at gcc dot gnu dot org
2010-08-22 17:10 ` mikael at gcc dot gnu dot org
2010-08-22 19:45 ` mikael at gcc dot gnu dot org
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).