[PATCH RFC] PR 47862: Fix caller-save spill of vectors on PowerPC

Pat Haugen pthaugen@linux.vnet.ibm.com
Wed Mar 2 22:33:00 GMT 2011


On 03/02/2011 11:53 AM, Pat Haugen wrote:
> I don't see how this can result in shortening of the save/restore length.
> caller-save.c:save_call_clobbered_regs() initally sets save_mode[] to the prior
> computed widest mode (V2DFmode in this case), and the following code will only
> attempt to increase it.

Forget this comment, I just created a testcase for a FP reg spill and it does in 
fact use the scalar FP store/load insns.



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