# RUN: llc -mtriple=s390x-linux-gnu -mcpu=z14 -O0 -start-after=regallocfast %s \
# RUN: -o - | FileCheck %s
#
# Test that LOCRMux expansion works at -O0.

--- |
  define internal i32 @fun(i16 %arg) { bb: ret i32 0 }
...

# CHECK-LABEL: fun
# CHECK: risbhg  %r13, %r13, 0, 159, 32

---
name:            'fun'
alignment:       16
tracksRegLiveness: true
frameInfo:
  maxAlignment:    8
machineFunctionInfo: {}
body:             |
  bb.0.bb:
    renamable $r0d = IMPLICIT_DEF
    CGHI killed renamable $r0d, 8, implicit-def $cc
    renamable $r13l = LHIMux 0
    renamable $r13h = LHIMux -1
    renamable $r13h = LOCRMux renamable $r13h, killed renamable $r13l, 14, 10, implicit $cc
    renamable $r2l = COPY killed renamable $r13h
    Return implicit killed $r2l
...