On Fri, 2013-09-20 at 07:39 +0100, Richard Sandiford wrote: > This seems pretty expensive though. Just wondering: is it related to > the -mfp64 jmp_buf thing? > > Thanks, > Richard
No, this is a separate issue from the -mfp64 jmp_buf bug. We think there may be some cases where having access to the FPU unit in FR1 mode may be advantageous enough to accept the cost of saving and restoring the FP registers but where we still need to be ABI compatible with fp32 code. Steve Ellcey sell...@mips.com