no-postra-sink.mir
1.75 KB
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# RUN: llc -mtriple=s390x-linux-gnu -mcpu=z13 -run-pass=postra-machine-sink -verify-machineinstrs -o - %s | FileCheck %s
---
# Don't sink COPY to bb.2 since SLLK define r13l that is aliased with r12q.
# CHECK-LABEL: name: donot_sink_copy
# CHECK-LABEL: bb.0:
# CHECK: renamable $r0l = COPY renamable $r12l, implicit killed $r12q
# CHECK-LABEL: bb.2:
# CHECK-NOT: COPY
name: donot_sink_copy
tracksRegLiveness: true
body: |
bb.0 :
successors: %bb.1, %bb.2
liveins: $r2d, $r3d, $r4d, $r5d, $r12q
renamable $r0l = COPY renamable $r12l, implicit killed $r12q
renamable $r13l = SLLK renamable $r4l, $noreg, 1
CHIMux renamable $r3l, 0, implicit-def $cc, implicit killed $r3d
BRC 14, 6, %bb.2, implicit killed $cc
J %bb.1
bb.1:
successors:
bb.2:
successors:
liveins: $r2d, $r4d, $r5d, $r0l, $r13l
renamable $r0d = LGFR killed renamable $r0l
renamable $r11d = LGFR killed renamable $r13l
...
# Don't sink COPY to bb.2 since SLLK use r1l that is aliased with r0q.
# CHECK-LABEL: name: donot_sink_copy2
# CHECK-LABEL: bb.0:
# CHECK: renamable $r0l = COPY renamable $r12l, implicit-def $r0q
# CHECK-LABEL: bb.2:
# CHECK-NOT: COPY
name: donot_sink_copy2
tracksRegLiveness: true
body: |
bb.0 :
successors: %bb.1, %bb.2
liveins: $r2d, $r3d, $r4d, $r5d, $r12q
renamable $r0l = COPY renamable $r12l, implicit def $r0q
renamable $r13l = SLLK renamable $r1l, $noreg, 1
CHIMux renamable $r3l, 0, implicit-def $cc, implicit killed $r3d
BRC 14, 6, %bb.2, implicit killed $cc
J %bb.1
bb.1:
successors:
bb.2:
successors:
liveins: $r2d, $r4d, $r5d, $r0l, $r13l
renamable $r0d = LGFR killed renamable $r0l
renamable $r11d = LGFR killed renamable $r13l
...