[Bug target/36241] Executable compiled with -m64 almost three times faster than the one compiled with -m32 on Core2Duo

[ubizjak at gmail dot com]

------- Comment #7 from ubizjak at gmail dot com  2009-06-17 09:18 -------
See Comment #2!

I tried to enhance ix86_secondary_reload target macro to return XMM
intermediate reg with movdi_to_sse handler for DImode -> DFmode moves. However,
handling of this macro has plenty of FIXMEs, and I was not able to get it work.

OTOH, doing integer arithmetics on 64bit _image_ of FP value has questionable
usability, so the motivation to fix this PR is proportionally low...


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36241