MFC r304319:

MFC r304319:

Pull in r262772 from upstream clang trunk (by Simon Pilgrim):

  [X86] AMD Bobcat CPU (btver1) doesn't support XSAVE

  btver1 is a SSSE3/SSE4a only CPU - it doesn't have AVX and doesn't
  support XSAVE.

  Differential Revision: http://reviews.llvm.org/D17682

Pull in r262782 from upstream llvm trunk (by Simon Pilgrim):

  [X86] AMD Bobcat CPU (btver1) doesn't support XSAVE

  btver1 is a SSSE3/SSE4a only CPU - it doesn't have AVX and doesn't
  support XSAVE.

  Differential Revision: http://reviews.llvm.org/D17683

This ensures clang does not emit AVX instructions for CPUTYPE=btver1.

Reported by:	Michel Depeige <demik+freebsd@lostwave.net>
PR:		211864