[Bug c/34071] Poor precision of complex division __divdc3 in 64-bit on Intel

2007-11-12 Thread nmm1 at cam dot ac dot uk
--- Comment #2 from nmm1 at cam dot ac dot uk 2007-11-12 14:25 --- Well, yes and no. I am sorry, but that reply has raised several separate points, so there is a threat of a thread split. 1) It is vaguely related to PR323, yes, but not simply. What I was saying could be considered is

[Bug c/34071] Poor precision of complex division __divdc3 in 64-bit on Intel

2007-11-12 Thread joseph at codesourcery dot com
--- Comment #3 from joseph at codesourcery dot com 2007-11-12 16:29 --- Subject: Re: Poor precision of complex division __divdc3 in 64-bit on Intel Excess overflows in complex arithmetic is noted on http://gcc.gnu.org/c99status.html but I don't think there's a specific bug for it.

[Bug c/34071] Poor precision of complex division __divdc3 in 64-bit on Intel

2007-11-12 Thread pinskia at gcc dot gnu dot org
--- Comment #4 from pinskia at gcc dot gnu dot org 2007-11-12 18:36 --- What happens if you use -std=gnu99 because as far as I remember C99 complex division is not enabled except with -std=gnu99/-std=c99 in 4.1 and before. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34071

[Bug c/34071] Poor precision of complex division __divdc3 in 64-bit on Intel

2007-11-12 Thread nmm1 at cam dot ac dot uk
--- Comment #5 from nmm1 at cam dot ac dot uk 2007-11-12 18:58 --- To Andrew Pinski: nothing - it was one of the first things I tried. To [EMAIL PROTECTED]: PLEASE don't try to follow Annex G - that is about as broken as it is possible to be; I use it as a horrible example in my