1# RUN: llc -mtriple=s390x-linux-gnu -mcpu=z13 -run-pass=postra-machine-sink -verify-machineinstrs -o - %s  | FileCheck %s
2
3---
4# Don't sink COPY to bb.2 since SLLK define r13l that is aliased with r12q.
5# CHECK-LABEL: name: donot_sink_copy
6# CHECK-LABEL: bb.0:
7# CHECK: renamable $r0l = COPY renamable $r12l, implicit killed $r12q
8# CHECK-LABEL: bb.2:
9# CHECK-NOT: COPY
10name:            donot_sink_copy
11tracksRegLiveness: true
12body:             |
13  bb.0 :
14    successors: %bb.1, %bb.2
15    liveins: $r2d, $r3d, $r4d, $r5d, $r12q
16
17    renamable $r0l = COPY renamable $r12l, implicit killed $r12q
18    renamable $r13l = SLLK renamable $r4l, $noreg, 1
19    CHIMux renamable $r3l, 0, implicit-def $cc, implicit killed $r3d
20    BRC 14, 6, %bb.2, implicit killed $cc
21    J %bb.1
22
23  bb.1:
24    successors:
25
26  bb.2:
27    successors:
28    liveins: $r2d, $r4d, $r5d, $r0l, $r13l
29
30    renamable $r0d = LGFR killed renamable $r0l
31    renamable $r11d = LGFR killed renamable $r13l
32...
33
34# Don't sink COPY to bb.2 since SLLK use r1l that is aliased with r0q.
35# CHECK-LABEL: name: donot_sink_copy2
36# CHECK-LABEL: bb.0:
37# CHECK: renamable $r0l = COPY renamable $r12l, implicit-def $r0q
38# CHECK-LABEL: bb.2:
39# CHECK-NOT: COPY
40name:            donot_sink_copy2
41tracksRegLiveness: true
42body:             |
43  bb.0 :
44    successors: %bb.1, %bb.2
45    liveins: $r2d, $r3d, $r4d, $r5d, $r12q
46
47    renamable $r0l = COPY renamable $r12l, implicit def $r0q
48    renamable $r13l = SLLK renamable $r1l, $noreg, 1
49    CHIMux renamable $r3l, 0, implicit-def $cc, implicit killed $r3d
50    BRC 14, 6, %bb.2, implicit killed $cc
51    J %bb.1
52
53  bb.1:
54    successors:
55
56  bb.2:
57    successors:
58    liveins: $r2d, $r4d, $r5d, $r0l, $r13l
59
60    renamable $r0d = LGFR killed renamable $r0l
61    renamable $r11d = LGFR killed renamable $r13l
62...
63
64