| # 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 | |
| ... | |