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