llvm/llvm/test/CodeGen/AArch64/GlobalISel/fp16-copy-gpr.mir

# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
# RUN: llc -mtriple=aarch64-unknown-unknown -o - -verify-machineinstrs -run-pass=instruction-select %s | FileCheck %s

# PR36345
--- |
  target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128"
  target triple = "aarch64"

  ; Function Attrs: noinline nounwind optnone
  define void @fp16_to_gpr([2 x half], ptr %addr) {
    ret void
  }

  define void @gpr_to_fp16() {
    ret void
  }

  define void @gpr_to_fp16_physreg() {
    ret void
  }
...
---
name:            fp16_to_gpr
alignment:       4
legalized:       true
regBankSelected: true
tracksRegLiveness: true
registers:
  - { id: 0, class: gpr }
  - { id: 1, class: fpr }
  - { id: 2, class: fpr }
  - { id: 3, class: gpr }
  - { id: 4, class: gpr }
  - { id: 5, class: gpr }
  - { id: 6, class: gpr }
  - { id: 7, class: gpr }
  - { id: 8, class: gpr }
  - { id: 9, class: gpr }
  - { id: 10, class: gpr }
  - { id: 11, class: gpr }
  - { id: 12, class: gpr }
body:             |
  bb.1 (%ir-block.1):
    liveins: $h0, $h1, $x0

    ; CHECK-LABEL: name: fp16_to_gpr
    ; CHECK: liveins: $h0, $h1, $x0
    ; CHECK: [[COPY:%[0-9]+]]:fpr16 = COPY $h0
    ; CHECK: [[COPY1:%[0-9]+]]:fpr16 = COPY $h1
    ; CHECK: [[DEF:%[0-9]+]]:gpr32 = IMPLICIT_DEF
    ; CHECK: [[SUBREG_TO_REG:%[0-9]+]]:fpr32 = SUBREG_TO_REG 0, [[COPY]], %subreg.hsub
    ; CHECK: [[COPY2:%[0-9]+]]:gpr32 = COPY [[SUBREG_TO_REG]]
    ; CHECK: [[BFMWri:%[0-9]+]]:gpr32 = BFMWri [[DEF]], [[COPY2]], 0, 15
    ; CHECK: [[SUBREG_TO_REG1:%[0-9]+]]:fpr32 = SUBREG_TO_REG 0, [[COPY1]], %subreg.hsub
    ; CHECK: [[COPY3:%[0-9]+]]:gpr32 = COPY [[SUBREG_TO_REG1]]
    ; CHECK: [[BFMWri1:%[0-9]+]]:gpr32 = BFMWri [[BFMWri]], [[COPY3]], 16, 15
    ; CHECK: [[COPY4:%[0-9]+]]:gpr64sp = COPY $x0
    ; CHECK: STRWui [[BFMWri1]], [[COPY4]], 0 :: (store (s32) into %ir.addr, align 2)
    ; CHECK: RET_ReallyLR
    %1:fpr(s16) = COPY $h0
    %2:fpr(s16) = COPY $h1
    %3:gpr(s32) = G_IMPLICIT_DEF
    %11:gpr(s16) = COPY %1(s16)
    %4:gpr(s32) = G_INSERT %3, %11(s16), 0
    %12:gpr(s16) = COPY %2(s16)
    %5:gpr(s32) = G_INSERT %4, %12(s16), 16
    %0:gpr(s32) = COPY %5(s32)
    %6:gpr(p0) = COPY $x0
    G_STORE %0(s32), %6(p0) :: (store (s32) into %ir.addr, align 2)
    RET_ReallyLR

...

---
name:            gpr_to_fp16
alignment:       4
legalized:       true
regBankSelected: true
tracksRegLiveness: true
registers:
  - { id: 0, class: gpr }
  - { id: 1, class: gpr }
  - { id: 2, class: fpr }
body:             |
  bb.1 (%ir-block.0):
    liveins: $w0

    ; CHECK-LABEL: name: gpr_to_fp16
    ; CHECK: liveins: $w0
    ; CHECK: [[COPY:%[0-9]+]]:gpr32 = COPY $w0
    ; CHECK: [[COPY1:%[0-9]+]]:fpr32 = COPY [[COPY]]
    ; CHECK: [[COPY2:%[0-9]+]]:fpr16 = COPY [[COPY1]].hsub
    ; CHECK: $h0 = COPY [[COPY2]]
    ; CHECK: RET_ReallyLR implicit $h0
    %0:gpr(s32) = COPY $w0
    %1:gpr(s16) = G_TRUNC %0(s32)
    %2:fpr(s16) = COPY %1(s16)
    $h0 = COPY %2(s16)
    RET_ReallyLR implicit $h0

...
---
name:            gpr_to_fp16_physreg
alignment:       4
legalized:       true
regBankSelected: true
tracksRegLiveness: true
registers:
  - { id: 0, class: gpr }
  - { id: 1, class: gpr }
body:             |
  bb.1 (%ir-block.0):
    liveins: $w0

    ; CHECK-LABEL: name: gpr_to_fp16_physreg
    ; CHECK: liveins: $w0
    ; CHECK: [[COPY:%[0-9]+]]:gpr32 = COPY $w0
    ; CHECK: [[COPY1:%[0-9]+]]:fpr32 = COPY [[COPY]]
    ; CHECK: [[COPY2:%[0-9]+]]:fpr16 = COPY [[COPY1]].hsub
    ; CHECK: $h0 = COPY [[COPY2]]
    ; CHECK: RET_ReallyLR implicit $h0
    %0:gpr(s32) = COPY $w0
    %1:gpr(s16) = G_TRUNC %0(s32)
    $h0 = COPY %1(s16)
    RET_ReallyLR implicit $h0

...