# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
# RUN: llc -mtriple aarch64-unknown-unknown -run-pass=instruction-select -verify-machineinstrs %s -o - | FileCheck %s
...
---
name:            fold_trunc
alignment:       4
legalized:       true
regBankSelected: true
tracksRegLiveness: true
body:             |
  ; CHECK-LABEL: name: fold_trunc
  ; CHECK: bb.0:
  ; CHECK:   successors: %bb.0(0x40000000), %bb.1(0x40000000)
  ; CHECK:   liveins: $x0
  ; CHECK:   %copy:gpr64all = COPY $x0
  ; CHECK:   [[COPY:%[0-9]+]]:gpr32all = COPY %copy.sub_32
  ; CHECK:   [[COPY1:%[0-9]+]]:gpr32 = COPY [[COPY]]
  ; CHECK:   TBNZW [[COPY1]], 3, %bb.1
  ; CHECK:   B %bb.0
  ; CHECK: bb.1:
  ; CHECK:   RET_ReallyLR
  bb.0:
    successors: %bb.0, %bb.1
    liveins: $x0
    %copy:gpr(s64) = COPY $x0
    %bit:gpr(s32) = G_CONSTANT i32 8
    %zero:gpr(s32) = G_CONSTANT i32 0
    %fold_me:gpr(s32) = G_TRUNC %copy(s64)
    %and:gpr(s32) = G_AND %fold_me, %bit
    %cmp:gpr(s32) = G_ICMP intpred(ne), %and(s32), %zero
    %cmp_trunc:gpr(s1) = G_TRUNC %cmp(s32)
    G_BRCOND %cmp_trunc(s1), %bb.1
    G_BR %bb.0
  bb.1:
    RET_ReallyLR