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1# RUN: llc -mtriple=aarch64-none-linux-gnu -run-pass none -o - %s | FileCheck %s2 3--- |4 define i32 @swp(ptr %addr) #0 {5 entry:6 %0 = atomicrmw xchg ptr %addr, i32 1 monotonic7 ret i32 %08 }9 10 attributes #0 = { "target-features"="+lse" }11...12---13name: swp14alignment: 415tracksRegLiveness: true16registers:17 - { id: 0, class: gpr64common }18 - { id: 1, class: gpr32 }19 - { id: 2, class: gpr32 }20liveins:21 - { reg: '$x0', virtual-reg: '%0' }22body: |23 bb.0.entry:24 liveins: $x025 26 ; CHECK-LABEL: swp27 ; CHECK: {{[0-9]+}}:gpr32 = SWPW killed %1, %0 :: (volatile load store monotonic (s32) on %ir.addr)28 %0:gpr64common = COPY $x029 %1:gpr32 = MOVi32imm 130 %2:gpr32 = SWPW killed %1, %0 :: (volatile load store monotonic (s32) on %ir.addr)31 $w0 = COPY %232 RET_ReallyLR implicit $w033...34