File: int-add-18.mir

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# RUN: llc -mtriple=s390x-linux-gnu -mcpu=z13 -start-before=postrapseudos \
# RUN:   %s -o - | FileCheck %s
#
# Test that an AHIMuxK pseudo does not result in a COPY (risbhg) if the
# source and destination registers are the same.

---
name:             fun
tracksRegLiveness: true
body:             |
  bb.0:
    $r1h = IIHF 0
    renamable $r1h = nuw nsw AHIMuxK killed renamable $r1h, 4, implicit-def dead $cc

    ; CHECK-LABEL: fun
    ; CHECK-NOT: risbhg
    ; CHECK: aih %r1, 4
...