issues trying to add ColdFire v4e FPU support to gcc-20020107

Richard Henderson rth@redhat.com
Mon Jan 21 14:27:00 GMT 2002


On Wed, Jan 16, 2002 at 04:08:19PM -0500, Peter Barada wrote:
> 1) How does gcc decide that (REG+REG) is valid for the movdf instuction?

GO_IF_LEGITIMATE_ADDRESS.  Really.  If it isn't working, you've
messed up somewhere.

> 2) Is it considered valid for the compiler to generate RTL that the
>    patterns constraints reject in the rtl generation pass and hope
>    that GO_IF_LEGITIMATE_ADDRESS and LEGITIMIZE_ADDRESS will fix?

No.


r~



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