# 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 | |
... | |