lib/Target/AArch64/select-bswap.mir

# RUN: llc -verify-machineinstrs -mtriple aarch64--- \
# RUN: -run-pass=instruction-select -mattr=+fullfp16 -global-isel %s -o - \
# RUN: | FileCheck %s
...
---
name:            bswap_s32
legalized:       true
regBankSelected: true
tracksRegLiveness: true
body:             |
  bb.0:
    ; CHECK-LABEL: name:            bswap_s32
    ; CHECK: [[COPY:%[0-9]+]]:gpr32 = COPY $w0
    ; CHECK: [[REVWr:%[0-9]+]]:gpr32 = REVWr [[COPY]]
    ; CHECK: $w0 = COPY [[REVWr]]
    liveins: $s0
    %0:gpr(s32) = COPY $w0
    %1:gpr(s32) = G_BSWAP %0
    $w0 = COPY %1(s32)

...
---
name:            bswap_s64
legalized:       true
regBankSelected: true
tracksRegLiveness: true
body:             |
  bb.0:
    ; CHECK-LABEL: name:            bswap_s64
    ; CHECK: [[COPY:%[0-9]+]]:gpr64 = COPY $x0
    ; CHECK: [[REVXr:%[0-9]+]]:gpr64 = REVXr [[COPY]]
    ; CHECK: $x0 = COPY [[REVXr]]
    liveins: $x0
    %0:gpr(s64) = COPY $d0
    %1:gpr(s64) = G_BSWAP %0
    $x0 = COPY %1(s64)

...