* [Bug java/24454] Floating point in GCJ does not follow spec
2005-10-20 16:28 [Bug java/24454] New: Floating point in GCJ does not follow spec dpollock at acm dot org
@ 2005-10-20 16:34 ` pinskia at gcc dot gnu dot org
2005-10-20 16:40 ` pinskia at physics dot uc dot edu
` (9 subsequent siblings)
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From: pinskia at gcc dot gnu dot org @ 2005-10-20 16:34 UTC (permalink / raw)
To: java-prs
------- Comment #1 from pinskia at gcc dot gnu dot org 2005-10-20 16:34 -------
Is this on x86 if so there is a known issue.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24454
^ permalink raw reply [flat|nested] 12+ messages in thread* [Bug java/24454] Floating point in GCJ does not follow spec
2005-10-20 16:28 [Bug java/24454] New: Floating point in GCJ does not follow spec dpollock at acm dot org
2005-10-20 16:34 ` [Bug java/24454] " pinskia at gcc dot gnu dot org
@ 2005-10-20 16:40 ` pinskia at physics dot uc dot edu
2005-10-20 17:03 ` [Bug java/24454] GCJ does not correctly support strictfp aph at gcc dot gnu dot org
` (8 subsequent siblings)
10 siblings, 0 replies; 12+ messages in thread
From: pinskia at physics dot uc dot edu @ 2005-10-20 16:40 UTC (permalink / raw)
To: java-prs
------- Comment #2 from pinskia at gcc dot gnu dot org 2005-10-20 16:40 -------
Subject: Re: New: Floating point in GCJ does not follow spec
>
> Eclipse's JDT/Core team was doing experiments with turning Eclipse's batch
> compiler into ECJ using GCJ. The goal was to provide an executable form of
> Eclipse's compiler. Unfortunately, the effort had to be abandoned because the
> resulting ECJ compiler would fail the floating point section of Java
> Compatibility Kit (JCK).
One more thing, is how did it fail?
You were compiling to native, correct?
Note fp is not exact unless you are using strictfp (which GCJ does not
implement currently).
-- Pinski
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24454
^ permalink raw reply [flat|nested] 12+ messages in thread* [Bug java/24454] GCJ does not correctly support strictfp
2005-10-20 16:28 [Bug java/24454] New: Floating point in GCJ does not follow spec dpollock at acm dot org
2005-10-20 16:34 ` [Bug java/24454] " pinskia at gcc dot gnu dot org
2005-10-20 16:40 ` pinskia at physics dot uc dot edu
@ 2005-10-20 17:03 ` aph at gcc dot gnu dot org
2005-10-20 17:06 ` pinskia at gcc dot gnu dot org
` (7 subsequent siblings)
10 siblings, 0 replies; 12+ messages in thread
From: aph at gcc dot gnu dot org @ 2005-10-20 17:03 UTC (permalink / raw)
To: java-prs
--
aph at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Ever Confirmed|0 |1
Last reconfirmed|0000-00-00 00:00:00 |2005-10-20 17:03:27
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24454
^ permalink raw reply [flat|nested] 12+ messages in thread* [Bug java/24454] GCJ does not correctly support strictfp
2005-10-20 16:28 [Bug java/24454] New: Floating point in GCJ does not follow spec dpollock at acm dot org
` (2 preceding siblings ...)
2005-10-20 17:03 ` [Bug java/24454] GCJ does not correctly support strictfp aph at gcc dot gnu dot org
@ 2005-10-20 17:06 ` pinskia at gcc dot gnu dot org
2005-10-21 10:23 ` rmathew at gcc dot gnu dot org
` (6 subsequent siblings)
10 siblings, 0 replies; 12+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2005-10-20 17:06 UTC (permalink / raw)
To: java-prs
------- Comment #3 from pinskia at gcc dot gnu dot org 2005-10-20 17:06 -------
I think this is more of a duplicate of PR 10632.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24454
^ permalink raw reply [flat|nested] 12+ messages in thread* [Bug java/24454] GCJ does not correctly support strictfp
2005-10-20 16:28 [Bug java/24454] New: Floating point in GCJ does not follow spec dpollock at acm dot org
` (3 preceding siblings ...)
2005-10-20 17:06 ` pinskia at gcc dot gnu dot org
@ 2005-10-21 10:23 ` rmathew at gcc dot gnu dot org
2005-10-21 10:26 ` rmathew at gcc dot gnu dot org
` (5 subsequent siblings)
10 siblings, 0 replies; 12+ messages in thread
From: rmathew at gcc dot gnu dot org @ 2005-10-21 10:23 UTC (permalink / raw)
To: java-prs
------- Comment #4 from rmathew at gcc dot gnu dot org 2005-10-21 10:23 -------
(In reply to comment #0)
> Eclipse's JDT/Core team was doing experiments with turning Eclipse's batch
> compiler into ECJ using GCJ. The goal was to provide an executable form of
> Eclipse's compiler. Unfortunately, the effort had to be abandoned because the
> resulting ECJ compiler would fail the floating point section of Java
> Compatibility Kit (JCK).
It would be nice if you could at least indicate what kind
of non-compliance you are talking of here. Is it strictfp,
accuracy of results, rounding of floating-point literals,
or something else? Of course, you should not reproduce
tests verbatim from the JCK, but please provide some
indication of what you're talking about in this bug report.
For example, are you talking of JLS3 section 4.2.4 here?
If yes, can you please elaborate exactly how using GCJ
as the compiler to compile your compiler is affecting its
status w.r.t. the JCK?
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24454
^ permalink raw reply [flat|nested] 12+ messages in thread* [Bug java/24454] GCJ does not correctly support strictfp
2005-10-20 16:28 [Bug java/24454] New: Floating point in GCJ does not follow spec dpollock at acm dot org
` (4 preceding siblings ...)
2005-10-21 10:23 ` rmathew at gcc dot gnu dot org
@ 2005-10-21 10:26 ` rmathew at gcc dot gnu dot org
2005-10-21 10:58 ` aph at gcc dot gnu dot org
` (4 subsequent siblings)
10 siblings, 0 replies; 12+ messages in thread
From: rmathew at gcc dot gnu dot org @ 2005-10-21 10:26 UTC (permalink / raw)
To: java-prs
------- Comment #5 from rmathew at gcc dot gnu dot org 2005-10-21 10:26 -------
(In reply to comment #4)
>
> It would be nice if you could at least indicate what kind
> of non-compliance you are talking of here. Is it strictfp,
> accuracy of results, rounding of floating-point literals,
> or something else? Of course, you should not reproduce
> tests verbatim from the JCK, but please provide some
> indication of what you're talking about in this bug report.
Sorry, I just noticed that aph was the one who changed
the summary to lack of strictfp support. So I guess he
knows what you were talking about in the bug report.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24454
^ permalink raw reply [flat|nested] 12+ messages in thread* [Bug java/24454] GCJ does not correctly support strictfp
2005-10-20 16:28 [Bug java/24454] New: Floating point in GCJ does not follow spec dpollock at acm dot org
` (5 preceding siblings ...)
2005-10-21 10:26 ` rmathew at gcc dot gnu dot org
@ 2005-10-21 10:58 ` aph at gcc dot gnu dot org
2005-10-21 12:46 ` olivier_thomann at sympatico dot ca
` (3 subsequent siblings)
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From: aph at gcc dot gnu dot org @ 2005-10-21 10:58 UTC (permalink / raw)
To: java-prs
------- Comment #6 from aph at gcc dot gnu dot org 2005-10-21 10:58 -------
gcj doesn't support strcitfp. The reserved word is allowed but ignored.
The main casualty of this is x86, where we fail some tests because of excess
precision.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24454
^ permalink raw reply [flat|nested] 12+ messages in thread* [Bug java/24454] GCJ does not correctly support strictfp
2005-10-20 16:28 [Bug java/24454] New: Floating point in GCJ does not follow spec dpollock at acm dot org
` (6 preceding siblings ...)
2005-10-21 10:58 ` aph at gcc dot gnu dot org
@ 2005-10-21 12:46 ` olivier_thomann at sympatico dot ca
2005-10-21 15:14 ` rmathew at gcc dot gnu dot org
` (2 subsequent siblings)
10 siblings, 0 replies; 12+ messages in thread
From: olivier_thomann at sympatico dot ca @ 2005-10-21 12:46 UTC (permalink / raw)
To: java-prs
------- Comment #7 from olivier_thomann at sympatico dot ca 2005-10-21 12:46 -------
The problem seemed to be with precision in the floating point literal. When
converting a floating point literal to its double/float value, it ended up
having an unexpected value.
--
olivier_thomann at sympatico dot ca changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |olivier_thomann at sympatico
| |dot ca
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24454
^ permalink raw reply [flat|nested] 12+ messages in thread* [Bug java/24454] GCJ does not correctly support strictfp
2005-10-20 16:28 [Bug java/24454] New: Floating point in GCJ does not follow spec dpollock at acm dot org
` (7 preceding siblings ...)
2005-10-21 12:46 ` olivier_thomann at sympatico dot ca
@ 2005-10-21 15:14 ` rmathew at gcc dot gnu dot org
2005-10-21 19:04 ` olivier_thomann at sympatico dot ca
2007-05-30 13:39 ` aph at gcc dot gnu dot org
10 siblings, 0 replies; 12+ messages in thread
From: rmathew at gcc dot gnu dot org @ 2005-10-21 15:14 UTC (permalink / raw)
To: java-prs
------- Comment #8 from rmathew at gcc dot gnu dot org 2005-10-21 15:14 -------
The bug about incorrect parsing and rounding of floating-point
literals is PR java/23432 and that about no support for strictfp
is PR java/10632. If this bug report is about either of these,
it can be closed as a duplicate of the respective previous
bug. If it is about both, it can be left as a "meta bug". If
it is about neither of the two, then please provide some
details and change the summary appropriately.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24454
^ permalink raw reply [flat|nested] 12+ messages in thread* [Bug java/24454] GCJ does not correctly support strictfp
2005-10-20 16:28 [Bug java/24454] New: Floating point in GCJ does not follow spec dpollock at acm dot org
` (8 preceding siblings ...)
2005-10-21 15:14 ` rmathew at gcc dot gnu dot org
@ 2005-10-21 19:04 ` olivier_thomann at sympatico dot ca
2007-05-30 13:39 ` aph at gcc dot gnu dot org
10 siblings, 0 replies; 12+ messages in thread
From: olivier_thomann at sympatico dot ca @ 2005-10-21 19:04 UTC (permalink / raw)
To: java-prs
------- Comment #9 from olivier_thomann at sympatico dot ca 2005-10-21 19:04 -------
Looking at the two other bug reports, it looks like this might be a duplicate
of PR java/10632. So feel free to close is as a dup.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24454
^ permalink raw reply [flat|nested] 12+ messages in thread* [Bug java/24454] GCJ does not correctly support strictfp
2005-10-20 16:28 [Bug java/24454] New: Floating point in GCJ does not follow spec dpollock at acm dot org
` (9 preceding siblings ...)
2005-10-21 19:04 ` olivier_thomann at sympatico dot ca
@ 2007-05-30 13:39 ` aph at gcc dot gnu dot org
10 siblings, 0 replies; 12+ messages in thread
From: aph at gcc dot gnu dot org @ 2007-05-30 13:39 UTC (permalink / raw)
To: java-prs
------- Comment #10 from aph at gcc dot gnu dot org 2007-05-30 13:36 -------
*** This bug has been marked as a duplicate of 10632 ***
--
aph at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution| |DUPLICATE
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24454
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