llvm/test/CodeGen/AArch64/GlobalISel/select-zext-as-copy.mir

# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
# RUN: llc -mtriple=aarch64-- -run-pass=instruction-select -verify-machineinstrs -global-isel-abort=1 %s -o - | FileCheck %s
---
name:            zext_of_load_copy
alignment:       4
exposesReturnsTwice: false
legalized:       true
regBankSelected: true
liveins:
  - { reg: '$x0', virtual-reg: '' }
  - { reg: '$x1', virtual-reg: '' }
fixedStack:      []
stack:           []
callSites:       []
debugValueSubstitutions: []
constants:       []
machineFunctionInfo: {}
body:             |
  bb.1:
    liveins: $x0, $x1

    ; CHECK-LABEL: name: zext_of_load_copy
    ; CHECK: [[DEF:%[0-9]+]]:gpr64common = IMPLICIT_DEF
    ; CHECK: [[LDRBBui:%[0-9]+]]:gpr32 = LDRBBui [[DEF]], 0 :: (load (s8))
    ; CHECK: [[SUBREG_TO_REG:%[0-9]+]]:gpr64all = SUBREG_TO_REG 0, [[LDRBBui]], %subreg.sub_32
    ; CHECK: [[COPY:%[0-9]+]]:gpr64 = COPY [[SUBREG_TO_REG]]
    ; CHECK: [[ANDXri:%[0-9]+]]:gpr64sp = ANDXri [[COPY]], 4096
    ; CHECK: $x0 = COPY [[ANDXri]]
    %3:gpr(p0) = G_IMPLICIT_DEF
    %2:gpr(s8) = G_LOAD %3(p0) :: (load (s8))
    %4:gpr(s64) = G_ZEXT %2(s8)
    %5:gpr(s64) = G_CONSTANT i64 1
    %6:gpr(s64) = G_AND %4, %5
    $x0 = COPY %6
...