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33 lines
698 B
33 lines
698 B
4 months ago
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# RUN: llc -march=amdgcn -run-pass=early-machinelicm -o - %s | FileCheck %s
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# Test to check machine LICM does not hoist convergent instructions,
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# DS_PERMUTE_B32 in this example.
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---
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# CHECK-LABEL: name: _amdgpu_cs_main
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# CHECK: bb.1:
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# CHECK: DS_PERMUTE_B32
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name: _amdgpu_cs_main
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body: |
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bb.0:
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liveins: $vgpr0, $vgpr1
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successors: %bb.1
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%0:vgpr_32 = COPY $vgpr0
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%1:vgpr_32 = COPY $vgpr1
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bb.1:
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successors: %bb.1, %bb.2
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%2:vgpr_32 = DS_PERMUTE_B32 %0, %1, 0, implicit $exec
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%3:vgpr_32 = V_ADD_CO_U32_e32 %0, %2, implicit-def $vcc, implicit $exec
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S_CBRANCH_SCC1 %bb.1, implicit undef $scc
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S_BRANCH %bb.2
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bb.2:
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$vgpr0 = COPY %3
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S_ENDPGM 0
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...
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