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120
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1 # RUN: llc -march=hexagon -run-pass if-converter -verify-machineinstrs -o - %s | FileCheck %s
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2
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3 # CHECK-LABEL: name: foo
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4 # CHECK: %p0 = C2_cmpeqi %r16, 0
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5 # Make sure there is no implicit use of r1.
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6 # CHECK: %r1 = L2_ploadruhf_io %p0, %r29, 6
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7
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8 --- |
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9 define void @foo() {
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10 ret void
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11 }
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12 ...
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13
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14
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15 ---
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16 name: foo
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17 tracksRegLiveness: true
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18
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19 body: |
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20 bb.0:
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21 liveins: %r16
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22 successors: %bb.1, %bb.2
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23 %p0 = C2_cmpeqi %r16, 0
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24 J2_jumpt %p0, %bb.2, implicit-def %pc
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25
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26 bb.1:
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27 ; The lane mask %d0:0002 is equivalent to %r0. LivePhysRegs would ignore
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28 ; it and treat it as the whole %d0, which is a pair %r1, %r0. The extra
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29 ; %r1 would cause an (undefined) implicit use to be added during
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30 ; if-conversion.
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31 liveins: %d0:0x00000002, %d15:0x00000001, %r16
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32 successors: %bb.2
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33 %r1 = L2_loadruh_io %r29, 6
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34 S2_storeri_io killed %r16, 0, %r1
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35
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36 bb.2:
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37 liveins: %r0
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38 %d8 = L2_loadrd_io %r29, 8
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39 L4_return implicit-def %r29, implicit-def %r30, implicit-def %r31, implicit-def %pc, implicit %r30
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40
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