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1# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py2# RUN: llc -mtriple aarch64 -run-pass=aarch64-prelegalizer-combiner -global-isel -verify-machineinstrs %s -o - | FileCheck %s3# Check that we don't DCE the lifetime markers even though they don't have any users.4---5name: test_lifetime_no_dce6alignment: 47tracksRegLiveness: true8frameInfo:9 maxAlignment: 410stack:11 - { id: 0, size: 4, alignment: 4 }12machineFunctionInfo: {}13body: |14 bb.1:15 ;%0:_(p0) = G_FRAME_INDEX %stack.0.slot16 ; CHECK-LABEL: name: test_lifetime_no_dce17 ; CHECK: LIFETIME_START %stack.018 ; CHECK-NEXT: LIFETIME_END %stack.019 ; CHECK-NEXT: RET_ReallyLR20 LIFETIME_START %stack.021 LIFETIME_END %stack.022 RET_ReallyLR23 24...25