--- Comment #15 from tkoenig at gcc dot gnu dot org 2007-03-04 08:03
---
Subject: Bug 30981
Author: tkoenig
Date: Sun Mar 4 08:03:34 2007
New Revision: 122522
URL: http://gcc.gnu.org/viewcvs?root=gccview=revrev=122522
Log:
2007-03-04 Thomas Koenig [EMAIL PROTECTED]
PR
--- Comment #14 from tkoenig at gcc dot gnu dot org 2007-03-01 19:43
---
At least this is not a regression wrt g77.
Interestingly enough, the following program sends g77 into
a tailspin of increasing memory usage during compilation:
program test
a = 3.0
print
--- Comment #9 from tkoenig at gcc dot gnu dot org 2007-02-28 22:04 ---
In principle, this is easy to fix: Use
an unsigned variable for u. In practice, this
means we have to delve into iparm.m4. Yuck :-)
I'll look at this, but if somebody else has a
good suggestion, please go ahead.
--- Comment #10 from pinskia at gcc dot gnu dot org 2007-02-28 22:39
---
Yes declare this as undefined code and close the bug :).
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30981
--- Comment #11 from Thomas dot Koenig at online dot de 2007-02-28 23:13
---
Subject: Re: a ** exp fails for integer exponents if exp is -huge()-1
(endless loop)
--- Comment #10 from pinskia at gcc dot gnu dot org 2007-02-28 22:39
---
Yes declare this as undefined code
--- Comment #13 from kargl at gcc dot gnu dot org 2007-02-28 23:25 ---
(In reply to comment #12)
Created an attachment (id=13127)
-- (http://gcc.gnu.org/bugzilla/attachment.cgi?id=13127action=view) [edit]
Patch looks ok to me. Note, I haven't tested.
--
kargl at gcc dot gnu
--- Comment #3 from burnus at gcc dot gnu dot org 2007-02-27 19:35 ---
Hi,
Could you post an example?
With example I mean something which actually compiles and runs. Here, I have
two problems:
include '$(where)/amos/include/essential.ecm'
is missing as well as the main
--- Comment #4 from ray at ultramarine dot com 2007-02-27 19:52 ---
Subject: Re: a ** exp fails for integer exponents if exp
is -huge()-1 (endless loop)
On Tue, 27 Feb 2007, burnus at gcc dot gnu dot org wrote:
--- Comment #3 from burnus at gcc dot gnu dot org 2007-02-27
--- Comment #5 from pinskia at gcc dot gnu dot org 2007-02-27 19:54 ---
Also isn't -huge()-1 undefined code for Fortran?
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30981
--- Comment #6 from ray at ultramarine dot com 2007-02-27 19:57 ---
Subject: Re: a ** exp fails for integer exponents if exp
is -huge()-1 (endless loop)
On Tue, 27 Feb 2007, pinskia at gcc dot gnu dot org wrote:
--- Comment #5 from pinskia at gcc dot gnu dot org 2007-02-27
--- Comment #7 from kargl at gcc dot gnu dot org 2007-02-27 20:46 ---
(In reply to comment #5)
Also isn't -huge()-1 undefined code for Fortran?
-huge()-1 can be defined in Fortran. The problem
comes when one tries to use that value in, e.g.,
IABS() because the standard prohibits
--- Comment #8 from burnus at gcc dot gnu dot org 2007-02-27 22:04 ---
Also isn't -huge()-1 undefined code for Fortran?
-huge()-1 can be defined in Fortran. [...]
I'll also note that -pedantic will reject -huge()-1
Just for completeness: In the original example (the very long,
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