[Bug c/29140] optimization -O2/-O3/-Os generate wrong instruction order

[mingqiao dot wu at gmail dot com]

------- Comment #4 from mingqiao dot wu at gmail dot com  2006-09-20 04:48 -------
After checking gcc manual, I found union can be used to do this conversion.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29140