llvm/test/CodeGen/AArch64/GlobalISel/regbank-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=regbankselect %s -o - | FileCheck %s
---
name:            extract_s64_s128
alignment:       4
legalized:       true
tracksRegLiveness: true
body:             |
  bb.1:
    liveins: $q0

    ; CHECK-LABEL: name: extract_s64_s128
    ; CHECK: liveins: $q0
    ; CHECK: [[COPY:%[0-9]+]]:fpr(s128) = COPY $q0
    ; CHECK: [[EXTRACT:%[0-9]+]]:fpr(s64) = G_EXTRACT [[COPY]](s128), 0
    ; CHECK: $d2 = COPY [[EXTRACT]](s64)
    ; CHECK: RET_ReallyLR implicit $d2
    %0:_(s128) = COPY $q0
    %1:_(s64) = G_EXTRACT %0(s128), 0
    $d2 = COPY %1(s64)

    RET_ReallyLR implicit $d2

...
---
name:            extract_s64_s128_gpr
alignment:       4
legalized:       true
tracksRegLiveness: true
body:             |
  bb.1:
    liveins: $x0_x1, $x1

    ; CHECK-LABEL: name: extract_s64_s128_gpr
    ; CHECK: liveins: $x0_x1, $x1
    ; CHECK: [[CASPX:%[0-9]+]]:xseqpairsclass(s128) = CASPX $x0_x1, $x0_x1, $x0
    ; CHECK: [[EXTRACT:%[0-9]+]]:gpr(s64) = G_EXTRACT [[CASPX]](s128), 0
    ; CHECK: RET_ReallyLR
    %0:xseqpairsclass = CASPX $x0_x1, $x0_x1, $x0
    %1:_(s64) = G_EXTRACT %0:xseqpairsclass(s128), 0

    RET_ReallyLR

...