CR for RFR 8170039

Berg, Michael C michael.c.berg at
Mon Nov 21 18:59:30 UTC 2016

Hi Folks,
Glibc uses a single convention for save/restore, so when the user asks for UseAVX={0,1,2} that excludes EVEX (3), we should offer non EVEX based save/restore for that path by not emitting the EVEX vector check code.

This code was tested as follows: hotspot jreg, SPECjvm2008, SPECjvm98 on hsw, skx and knl targets complete with no issues on 64-bit.



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