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; RUN: llc < %s -march=bfin -join-liveintervals=0 -verify-machineinstrs
; RUN: llc < %s -march=bfin -join-liveintervals=0 -verify-machineinstrs -regalloc=greedy
; Provoke an error in LowerSubregsPass::LowerExtract where the live range of a
; super-register is illegally extended.
define i16 @f(i16 %x1, i16 %x2, i16 %x3, i16 %x4) {
%y1 = add i16 %x1, 1
%y2 = add i16 %x2, 2
%y3 = add i16 %x3, 3
%y4 = add i16 %x4, 4
%z12 = add i16 %y1, %y2
%z34 = add i16 %y3, %y4
%p = add i16 %z12, %z34
ret i16 %p
}
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