# RUN: llc -o - %s -mtriple=s390x-linux-gnu -mcpu=z15 -run-pass=systemz-post-rewrite \
# RUN:   2>&1 | FileCheck %s

# The SELRMux has two identical sources - replace with a copy instruction.
# CHECK:      name: fun0
# CHECK:      renamable $r1l = AHIMuxK killed renamable $r1l, -1, implicit-def dead $cc
# CHECK-NEXT: CHIMux renamable $r5h, 9, implicit-def $cc
# CHECK-NEXT: $r14h = COPY renamable $r1l
---
name:            fun0
tracksRegLiveness: true
body:             |
  bb.0:
    liveins: $r1l, $r5h
    renamable $r1l = AHIMuxK killed renamable $r1l, -1, implicit-def dead $cc
    CHIMux renamable $r5h, 9, implicit-def $cc
    renamable $r14h = SELRMux killed renamable $r1l, renamable $r1l, 14, 8, implicit $cc
    $r14l = COPY killed renamable $r14h
    $r14d = LGFR $r14l
    Return implicit $r14d
...