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comparison llvm/test/CodeGen/AMDGPU/fold-multiple.mir @ 150:1d019706d866

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LLVM10
author anatofuz
date Thu, 13 Feb 2020 15:10:13 +0900
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children 2e18cbf3894f
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147:c2174574ed3a 150:1d019706d866
1 # RUN: llc --mtriple=amdgcn--amdhsa -mcpu=fiji -verify-machineinstrs -run-pass si-fold-operands,si-shrink-instructions %s -o - | FileCheck %s
2 --- |
3 define amdgpu_kernel void @test() #0 {
4 ret void
5 }
6
7 attributes #0 = { nounwind }
8
9 ...
10 ---
11
12 # This used to crash / trigger an assertion, because re-scanning the use list
13 # after constant-folding the definition of %3 lead to the definition of %2
14 # being processed twice.
15
16 # CHECK-LABEL: name: test
17 # CHECK: %2:vgpr_32 = V_LSHLREV_B32_e32 2, killed %0, implicit $exec
18 # CHECK: %4:vgpr_32 = V_AND_B32_e32 8, killed %2, implicit $exec
19
20 name: test
21 tracksRegLiveness: true
22 registers:
23 - { id: 0, class: vgpr_32 }
24 - { id: 1, class: sreg_32 }
25 - { id: 2, class: vgpr_32 }
26 - { id: 3, class: sreg_32 }
27 - { id: 4, class: vgpr_32 }
28 - { id: 5, class: sgpr_128 }
29 body: |
30 bb.0 (%ir-block.0):
31 %0 = IMPLICIT_DEF
32 %1 = S_MOV_B32 2
33 %2 = V_LSHLREV_B32_e64 %1, killed %0, implicit $exec
34 %3 = S_LSHL_B32 %1, killed %1, implicit-def dead $scc
35 %4 = V_AND_B32_e64 killed %2, killed %3, implicit $exec
36 %5 = IMPLICIT_DEF
37 BUFFER_STORE_DWORD_OFFSET killed %4, killed %5, 0, 0, 0, 0, 0, 0, 0, implicit $exec
38 S_ENDPGM 0
39
40 ...