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TheRock/compiler/amd-llvm/llvm/test/CodeGen/Thumb/machine-cse-physreg.mir
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Flatten subprojects into a single base monorepo
2026-09-02 16:34:47 -07:00

37 lines
840 B
YAML

# RUN: llc -mtriple thumbv5e -run-pass=machine-cse -o - %s | FileCheck %s
# RUN: llc -mtriple thumbv5e -passes=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
...