llvm/llvm/test/CodeGen/AArch64/GlobalISel/legalize-fp16-fconstant.mir

# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
# RUN: llc -mtriple aarch64-unknown-unknown -verify-machineinstrs -run-pass=legalizer %s -o - | FileCheck %s --check-prefix=NO-FP16
# RUN: llc -mtriple aarch64-unknown-unknown -verify-machineinstrs -mattr=+fullfp16 -run-pass=legalizer %s -o - | FileCheck %s --check-prefix=FP16

---
name:            fp16
tracksRegLiveness: true
body: |
  bb.0:
    ; NO-FP16-LABEL: name: fp16
    ; NO-FP16: %cst:_(s16) = G_CONSTANT i16 0
    ; NO-FP16-NEXT: $h0 = COPY %cst(s16)
    ; NO-FP16-NEXT: RET_ReallyLR implicit $h0
    ; FP16-LABEL: name: fp16
    ; FP16: %cst:_(s16) = G_FCONSTANT half 0xH0000
    ; FP16-NEXT: $h0 = COPY %cst(s16)
    ; FP16-NEXT: RET_ReallyLR implicit $h0
    %cst:_(s16) = G_FCONSTANT half 0.0
    $h0 = COPY %cst
    RET_ReallyLR implicit $h0
...
---
name:            fp16_non_zero
tracksRegLiveness: true
body: |
  bb.0:
    ; NO-FP16-LABEL: name: fp16_non_zero
    ; NO-FP16: %cst:_(s16) = G_CONSTANT i16 16384
    ; NO-FP16-NEXT: $h0 = COPY %cst(s16)
    ; NO-FP16-NEXT: RET_ReallyLR implicit $h0
    ; FP16-LABEL: name: fp16_non_zero
    ; FP16: %cst:_(s16) = G_FCONSTANT half 0xH4000
    ; FP16-NEXT: $h0 = COPY %cst(s16)
    ; FP16-NEXT: RET_ReallyLR implicit $h0
    %cst:_(s16) = G_FCONSTANT half 2.0
    $h0 = COPY %cst
    RET_ReallyLR implicit $h0
...
---
name:            nan
tracksRegLiveness: true
body:             |
  bb.1.entry:
    ; NO-FP16-LABEL: name: nan
    ; NO-FP16: %cst:_(s16) = G_CONSTANT i16 31745
    ; NO-FP16-NEXT: %ext:_(s32) = G_FPEXT %cst(s16)
    ; NO-FP16-NEXT: $w0 = COPY %ext(s32)
    ; NO-FP16-NEXT: RET_ReallyLR implicit $w0
    ; FP16-LABEL: name: nan
    ; FP16: %cst:_(s16) = G_FCONSTANT half 0xH7C01
    ; FP16-NEXT: %ext:_(s32) = G_FPEXT %cst(s16)
    ; FP16-NEXT: $w0 = COPY %ext(s32)
    ; FP16-NEXT: RET_ReallyLR implicit $w0
    %cst:_(s16) = G_FCONSTANT half 0xH7C01
    %ext:_(s32) = G_FPEXT %cst(s16)
    $w0 = COPY %ext(s32)
    RET_ReallyLR implicit $w0

...