1# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py 2# RUN: llc -march=aarch64 -run-pass=legalizer %s -o - -verify-machineinstrs | FileCheck %s 3--- | 4 target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128" 5 target triple = "aarch64" 6 7 declare i16 @llvm.bswap.i16(i16) #0 8 9 define i16 @bswap_s16(i16 %a) { ret i16 0 } 10 11 attributes #0 = { nounwind readnone speculatable willreturn } 12 13... 14--- 15name: bswap_s16 16alignment: 4 17tracksRegLiveness: true 18liveins: 19 - { reg: '$w0' } 20frameInfo: 21 maxAlignment: 1 22machineFunctionInfo: {} 23body: | 24 bb.1: 25 liveins: $w0 26 27 ; CHECK-LABEL: name: bswap_s16 28 ; CHECK: liveins: $w0 29 ; CHECK: [[COPY:%[0-9]+]]:_(s32) = COPY $w0 30 ; CHECK: [[COPY1:%[0-9]+]]:_(s32) = COPY [[COPY]](s32) 31 ; CHECK: [[BSWAP:%[0-9]+]]:_(s32) = G_BSWAP [[COPY1]] 32 ; CHECK: [[C:%[0-9]+]]:_(s64) = G_CONSTANT i64 16 33 ; CHECK: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[BSWAP]], [[C]](s64) 34 ; CHECK: [[COPY2:%[0-9]+]]:_(s32) = COPY [[LSHR]](s32) 35 ; CHECK: $w0 = COPY [[COPY2]](s32) 36 ; CHECK: RET_ReallyLR implicit $w0 37 %1:_(s32) = COPY $w0 38 %0:_(s16) = G_TRUNC %1(s32) 39 %2:_(s16) = G_BSWAP %0 40 %3:_(s32) = G_ANYEXT %2(s16) 41 $w0 = COPY %3(s32) 42 RET_ReallyLR implicit $w0 43 44... 45