[PATCH] [1/2] Add intrinsics for TBM instruction set

[David Woodhouse]

  Please add this to your test cases:

  bextr   %ebx, (%edi), %eax
  // CHECK: encoding: [0x67,0xc4,0xe2,0x60,0xf7,0x07]

  bextr   $foo, (%edi), %eax
  // CHECK: encoding: [0x67,0x8f,0xea,0x78,0x10,0x07,A,A,A,A]

  They will currently fail... please fix that too :)

http://llvm-reviews.chandlerc.com/D1750