[Bug target/19009] Loading of FP constants into FP reg via SSE reg

uros at kss-loka dot si gcc-bugzilla@gcc.gnu.org
Thu Dec 16 06:28:00 GMT 2004


------- Additional Comments From uros at kss-loka dot si  2004-12-16 06:28 -------
(In reply to comment #1)

I'm trying to make a testcase out of PovRay sources that trigger this behaviour.
I think that "*movdf_nointeger" is somehow confused and chooses SSE register to
load constant. After that, reload moves SSE reg to FP reg via stack. Perhaps
ix86_preferred_reload_class () needs some fine-tuning regarding to -mfpmath
parameter?


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19009



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