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24 lines
663 B
Plaintext
24 lines
663 B
Plaintext
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# RUN: llc -run-pass si-optimize-exec-masking-pre-ra -march=amdgcn -verify-machineinstrs -o - %s | FileCheck --check-prefixes=GCN %s
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---
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# GCN-LABEL: name: opt_exec_copy_fold
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# GCN: %2:vreg_64 = COPY $exec
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name: opt_exec_copy_fold
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tracksRegLiveness: true
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liveins:
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- { reg: '$sgpr0_sgpr1' }
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body: |
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bb.0:
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liveins: $sgpr0_sgpr1
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%0:vgpr_32 = V_CNDMASK_B32_e64 0, 0, 0, 1, $sgpr0_sgpr1, implicit $exec
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%1:sreg_64 = V_CMP_NE_U32_e64 0, %0, implicit $exec
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%2:vreg_64 = COPY $exec
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%3:sreg_64 = V_CMP_EQ_U64_e64 %1, %2, implicit $exec
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$scc = COPY %3
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S_CBRANCH_SCC0 %bb.1, implicit $scc
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bb.1:
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...
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