test/CodeGen/AArch64/GlobalISel/select-extract.mir

# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
# RUN: llc -mtriple=aarch64-unknown-unknown -verify-machineinstrs -O0 -run-pass=instruction-select %s -o - | FileCheck %s
...
---
name:            extract_64_128
legalized:       true
regBankSelected: true
tracksRegLiveness: true
body:             |
  bb.0:
    liveins: $q0

    ; CHECK-LABEL: name: extract_64_128
    ; CHECK: liveins: $q0
    ; CHECK: [[COPY:%[0-9]+]]:fpr128 = COPY $q0
    ; CHECK: [[COPY1:%[0-9]+]]:fpr64 = COPY [[COPY]].dsub
    ; CHECK: [[CPYi64_:%[0-9]+]]:fpr64 = CPYi64 [[COPY]], 1
    ; CHECK: $d3 = COPY [[COPY1]]
    ; CHECK: $d4 = COPY [[CPYi64_]]
    ; CHECK: RET_ReallyLR implicit $d3
    %0:fpr(s128) = COPY $q0
    %2:fpr(s64) = G_EXTRACT %0(s128), 0
    %3:fpr(s64) = G_EXTRACT %0(s128), 64
    $d3 = COPY %2(s64)
    $d4 = COPY %3(s64)
    RET_ReallyLR implicit $d3

...