How to file such a bug report?

[Ian Lance Taylor]

Xin Wei Hu <huxw@knight.6test.edu.cn> writes:

>    gcc 3.4 ICEed when compile with a precompiled header. So I use
> --save-temps to get an .ii file, but g++ then successfully compiled this
> .ii file without any errors. 

See the discussion in
    http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14400

Basically, PCH is unstable on platforms for which specific support has
not been added.  That's why the docs say it is a "technology preview."
In 3.4.0, the only platform for which PCH is stable is Darwin.

Ian