forked from OSchip/llvm-project
36 lines
748 B
Plaintext
36 lines
748 B
Plaintext
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# RUN: llc -mtriple thumbv5e -run-pass=machine-cse -o - %s | FileCheck %s
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# This is a contrived example made to expose a bug in
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# MachineCSE, see PR32538.
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# MachineCSE must not remove this def of %cpsr:
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# CHECK-LABEL: bb.1:
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# CHECK: , %cpsr = tLSLri
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...
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---
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name: spam
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registers:
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- { id: 0, class: tgpr }
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- { id: 1, class: tgpr }
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- { id: 2, class: tgpr }
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- { id: 3, class: tgpr }
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liveins:
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- { reg: '%r0', virtual-reg: '%0' }
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body: |
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bb.0:
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liveins: %r0
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%0 = COPY %r0
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%1, %cpsr = tLSLri %0, 2, 14, _
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tCMPi8 %0, 5, 14, _, implicit-def %cpsr
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tBcc %bb.8, 8, %cpsr
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bb.1:
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%2, %cpsr = tLSLri %0, 2, 14, _
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bb.8:
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liveins: %cpsr
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%3 = COPY %cpsr
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tSTRi killed %3, %0, 0, 14, _
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...
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