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cc64dc66e7
Explicit references to %AH for an i8 remainder instruction can lead to references to %AH in a REX prefixed instruction, which causes things to blow up. Do the same thing in FastISel as we do for DAG isel and instead shift %AX right by 8 bits and then extract the 8-bit subreg from that result. rdar://14203849 http://llvm.org/bugs/show_bug.cgi?id=16105 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185899 91177308-0d34-0410-b5e6-96231b3b80d8
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