llvm/test/CodeGen/AArch64/GlobalISel/select-truncstore-atomic.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:            truncstore_atomic_32
alignment:       4
legalized:       true
regBankSelected: true
tracksRegLiveness: true
liveins:
  - { reg: '$x0' }
  - { reg: '$w1' }
body:             |
  ; CHECK-LABEL: name: truncstore_atomic_32
  ; CHECK: bb.0:
  ; CHECK-NEXT:   successors: %bb.2(0x40000000), %bb.1(0x40000000)
  ; CHECK-NEXT:   liveins: $w1, $x0
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT:   [[COPY:%[0-9]+]]:gpr64sp = COPY $x0
  ; CHECK-NEXT:   [[COPY1:%[0-9]+]]:gpr32 = COPY $w1
  ; CHECK-NEXT:   TBNZW [[COPY1]], 0, %bb.2
  ; CHECK-NEXT:   B %bb.1
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT: bb.1:
  ; CHECK-NEXT:   successors: %bb.2(0x80000000)
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT:   [[MOVi32imm:%[0-9]+]]:gpr32 = MOVi32imm 4
  ; CHECK-NEXT:   [[SUBREG_TO_REG:%[0-9]+]]:gpr64all = SUBREG_TO_REG 0, [[MOVi32imm]], %subreg.sub_32
  ; CHECK-NEXT:   [[COPY2:%[0-9]+]]:gpr32 = COPY [[SUBREG_TO_REG]].sub_32
  ; CHECK-NEXT:   STLRW [[COPY2]], [[COPY]] :: (store release (s32))
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT: bb.2:
  ; CHECK-NEXT:   RET_ReallyLR
  bb.1:
    liveins: $w1, $x0

    %0:gpr(p0) = COPY $x0
    %3:gpr(s32) = COPY $w1
    %2:gpr(s8) = G_TRUNC %3(s32)
    %4:gpr(s8) = G_ASSERT_ZEXT %2, 1
    %1:gpr(s1) = G_TRUNC %4(s8)
    G_BRCOND %1(s1), %bb.3
    G_BR %bb.2

  bb.2:
    %8:gpr(s64) = G_CONSTANT i64 4
    G_STORE %8(s64), %0(p0) :: (store release (s32))

  bb.3:
    RET_ReallyLR

...
---
name:            truncstore_atomic_16
alignment:       4
legalized:       true
regBankSelected: true
tracksRegLiveness: true
liveins:
  - { reg: '$x0' }
  - { reg: '$w1' }
body:             |
  ; CHECK-LABEL: name: truncstore_atomic_16
  ; CHECK: bb.0:
  ; CHECK-NEXT:   successors: %bb.2(0x40000000), %bb.1(0x40000000)
  ; CHECK-NEXT:   liveins: $w1, $x0
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT:   [[COPY:%[0-9]+]]:gpr64sp = COPY $x0
  ; CHECK-NEXT:   [[COPY1:%[0-9]+]]:gpr32 = COPY $w1
  ; CHECK-NEXT:   TBNZW [[COPY1]], 0, %bb.2
  ; CHECK-NEXT:   B %bb.1
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT: bb.1:
  ; CHECK-NEXT:   successors: %bb.2(0x80000000)
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT:   [[MOVi32imm:%[0-9]+]]:gpr32 = MOVi32imm 4
  ; CHECK-NEXT:   [[SUBREG_TO_REG:%[0-9]+]]:gpr64all = SUBREG_TO_REG 0, [[MOVi32imm]], %subreg.sub_32
  ; CHECK-NEXT:   [[COPY2:%[0-9]+]]:gpr32 = COPY [[SUBREG_TO_REG]].sub_32
  ; CHECK-NEXT:   STLRH [[COPY2]], [[COPY]] :: (store release (s16))
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT: bb.2:
  ; CHECK-NEXT:   RET_ReallyLR
  bb.1:
    liveins: $w1, $x0

    %0:gpr(p0) = COPY $x0
    %3:gpr(s32) = COPY $w1
    %2:gpr(s8) = G_TRUNC %3(s32)
    %4:gpr(s8) = G_ASSERT_ZEXT %2, 1
    %1:gpr(s1) = G_TRUNC %4(s8)
    G_BRCOND %1(s1), %bb.3
    G_BR %bb.2

  bb.2:
    %8:gpr(s64) = G_CONSTANT i64 4
    G_STORE %8(s64), %0(p0) :: (store release (s16))

  bb.3:
    RET_ReallyLR

...
---
name:            truncstore_atomic_8
alignment:       4
legalized:       true
regBankSelected: true
tracksRegLiveness: true
liveins:
  - { reg: '$x0' }
  - { reg: '$w1' }
body:             |
  ; CHECK-LABEL: name: truncstore_atomic_8
  ; CHECK: bb.0:
  ; CHECK-NEXT:   successors: %bb.2(0x40000000), %bb.1(0x40000000)
  ; CHECK-NEXT:   liveins: $w1, $x0
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT:   [[COPY:%[0-9]+]]:gpr64sp = COPY $x0
  ; CHECK-NEXT:   [[COPY1:%[0-9]+]]:gpr32 = COPY $w1
  ; CHECK-NEXT:   TBNZW [[COPY1]], 0, %bb.2
  ; CHECK-NEXT:   B %bb.1
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT: bb.1:
  ; CHECK-NEXT:   successors: %bb.2(0x80000000)
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT:   [[MOVi32imm:%[0-9]+]]:gpr32 = MOVi32imm 4
  ; CHECK-NEXT:   [[SUBREG_TO_REG:%[0-9]+]]:gpr64all = SUBREG_TO_REG 0, [[MOVi32imm]], %subreg.sub_32
  ; CHECK-NEXT:   [[COPY2:%[0-9]+]]:gpr32 = COPY [[SUBREG_TO_REG]].sub_32
  ; CHECK-NEXT:   STLRB [[COPY2]], [[COPY]] :: (store release (s8))
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT: bb.2:
  ; CHECK-NEXT:   RET_ReallyLR
  bb.1:
    liveins: $w1, $x0

    %0:gpr(p0) = COPY $x0
    %3:gpr(s32) = COPY $w1
    %2:gpr(s8) = G_TRUNC %3(s32)
    %4:gpr(s8) = G_ASSERT_ZEXT %2, 1
    %1:gpr(s1) = G_TRUNC %4(s8)
    G_BRCOND %1(s1), %bb.3
    G_BR %bb.2

  bb.2:
    %8:gpr(s64) = G_CONSTANT i64 4
    G_STORE %8(s64), %0(p0) :: (store release (s8))

  bb.3:
    RET_ReallyLR

...