------- Additional Comments From uros at kss-loka dot si 2005-09-15 11:39 ------- (In reply to comment #14)
> Yes, it does not work when configuring gcc with --with-cpu=pentium4 see PR 19161. No, the patch works OK for pentium4. The remaining problem is in optimize_mode_switching() function. For a certain loop layout, o_m_s could insert emms and efpu insn in such way, that both register sets are blocked. Because emms/efpu insertion depends heavily on o_m_s functionality, this infrastructure should be upgraded as explained in PR 19161. (BTW: One of the design goals was to ICE, instead of generating wrong code. It loks that this goal was achieved :) -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14552
