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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 %s2# RUN: llc --mtriple=amdgcn--amdhsa -mcpu=fiji -verify-machineinstrs -passes si-fold-operands,si-shrink-instructions %s -o - | FileCheck %s3--- |4 define amdgpu_kernel void @test() #0 {5 ret void6 }7 8 attributes #0 = { nounwind }9 10...11---12 13# This used to crash / trigger an assertion, because re-scanning the use list14# after constant-folding the definition of %3 lead to the definition of %215# being processed twice.16 17# CHECK-LABEL: name: test18# CHECK: %2:vgpr_32 = V_LSHLREV_B32_e32 2, killed %0, implicit $exec19# CHECK: %4:vgpr_32 = V_AND_B32_e32 8, killed %2, implicit $exec20 21name: test22tracksRegLiveness: true23registers:24 - { id: 0, class: vgpr_32 }25 - { id: 1, class: sreg_32 }26 - { id: 2, class: vgpr_32 }27 - { id: 3, class: sreg_32 }28 - { id: 4, class: vgpr_32 }29 - { id: 5, class: sgpr_128 }30body: |31 bb.0 (%ir-block.0):32 %0 = IMPLICIT_DEF33 %1 = S_MOV_B32 234 %2 = V_LSHLREV_B32_e64 %1, killed %0, implicit $exec35 %3 = S_LSHL_B32 %1, killed %1, implicit-def dead $scc36 %4 = V_AND_B32_e64 killed %2, killed %3, implicit $exec37 %5 = IMPLICIT_DEF38 BUFFER_STORE_DWORD_OFFSET killed %4, killed %5, 0, 0, 0, 0, implicit $exec39 S_ENDPGM 040 41...42