[llvm-dev] Receiving LLVM Error in Custom Backend

Mush Yien via llvm-dev llvm-dev at lists.llvm.org
Wed Sep 7 03:30:09 PDT 2016


I am receiving an LLVM Error from a custom 16-bit backend I am creating.  I
am having trouble understanding the error/problem and how to go about
solving it.  The error is:

LLVM ERROR: Cannot select: t29: i32,ch = load<LD2[%x.addr], anyext from
i16> t14, FrameIndex:i16<0>, undef:i16
  t7: i16 = FrameIndex<0>
  t9: i16 = undef
In function: mul_add

Can anyone provide any pointers as to what the problem is and potential
places I should look to fix it?

Thanks and best regards,

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