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Re: powerpc-eabi-gcc no implicit FPU usage
David Edelsohn wrote:
>>> It is of course a feature much
>>> less valuable on a workstation/server class operating system than on the
>>> VxWorks/RTEMS class of RTOS systems.
> No one disagrees with the potential benefit of the feature.
OK; I must have misremembered.
I believe our current implementation keeps track of FP usage through the
front-end, and then disables any floating-point registers by futzing
with fixed_regs and such when compiling each function. There appear to
be no back-end specific patches at all. If that sounds like a
reasonable approach, we might be able to get that into 4.6.
Thanks,
--
Mark Mitchell
CodeSourcery
mark@codesourcery.com
(650) 331-3385 x713