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150
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1 # RUN: llc --mtriple=amdgcn--amdhsa -mcpu=fiji -verify-machineinstrs -run-pass si-fold-operands,si-shrink-instructions %s -o - | FileCheck %s
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2 --- |
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3 define amdgpu_kernel void @test() #0 {
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4 ret void
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5 }
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6
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7 attributes #0 = { nounwind }
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8
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9 ...
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10 ---
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11
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12 # This used to crash / trigger an assertion, because re-scanning the use list
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13 # after constant-folding the definition of %3 lead to the definition of %2
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14 # being processed twice.
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15
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16 # CHECK-LABEL: name: test
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17 # CHECK: %2:vgpr_32 = V_LSHLREV_B32_e32 2, killed %0, implicit $exec
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18 # CHECK: %4:vgpr_32 = V_AND_B32_e32 8, killed %2, implicit $exec
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19
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20 name: test
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21 tracksRegLiveness: true
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22 registers:
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23 - { id: 0, class: vgpr_32 }
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24 - { id: 1, class: sreg_32 }
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25 - { id: 2, class: vgpr_32 }
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26 - { id: 3, class: sreg_32 }
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27 - { id: 4, class: vgpr_32 }
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28 - { id: 5, class: sgpr_128 }
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29 body: |
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30 bb.0 (%ir-block.0):
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31 %0 = IMPLICIT_DEF
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32 %1 = S_MOV_B32 2
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33 %2 = V_LSHLREV_B32_e64 %1, killed %0, implicit $exec
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34 %3 = S_LSHL_B32 %1, killed %1, implicit-def dead $scc
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35 %4 = V_AND_B32_e64 killed %2, killed %3, implicit $exec
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36 %5 = IMPLICIT_DEF
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221
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37 BUFFER_STORE_DWORD_OFFSET killed %4, killed %5, 0, 0, 0, 0, 0, implicit $exec
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150
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38 S_ENDPGM 0
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39
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40 ...
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