llvm/test/CodeGen/AArch64/sve-vls-ldst-opt.mir

# RUN: llc -mtriple=aarch64-unknown-linux -mattr=+sve -aarch64-sve-vector-bits-min=128 -aarch64-sve-vector-bits-max=128 -run-pass=aarch64-ldst-opt -verify-machineinstrs %s -o - | FileCheck %s
---
name: pair-sve-fill-spill
tracksRegLiveness: true
body: |
  bb.0:
    liveins: $x0, $x1
    renamable $z0 = LDR_ZXI renamable $x0, 0 :: (load (<vscale x 1 x s128>))
    renamable $z1 = LDR_ZXI killed renamable $x0, 1 :: (load (<vscale x 1 x s128>))
    STR_ZXI killed renamable $z0, renamable $x1, 0 :: (store (<vscale x 1 x s128>))
    STR_ZXI killed renamable $z1, killed renamable $x1, 1 :: (store (<vscale x 1 x s128>))
    RET_ReallyLR
...
# CHECK-LABEL: name: pair-sve-fill-spill
# CHECK: $q0, $q1 = LDPQi renamable $x0, 0 :: (load (<vscale x 1 x s128>))
# CHECK: STPQi killed $q0, killed $q1, renamable $x1, 0 :: (store (<vscale x 1 x s128>))
---
name: do-not-pair-sve-with-neon-scaled
tracksRegLiveness: true
body: |
  bb.0:
    liveins: $x0, $x1
    ; SVE LDR + Neon LDR
    renamable $z0 = LDR_ZXI renamable $x0, 0 :: (load (<vscale x 1 x s128>))
    renamable $q1 = LDRQui renamable $x0, 1 :: (load (s128))
    ; Neon LDR + SVE LDR
    renamable $q2 = LDRQui renamable $x0, 3 :: (load (s128))
    renamable $z3 = LDR_ZXI renamable $x0, 4 :: (load (<vscale x 1 x s128>))
    ; SVE STR + Neon STR
    STR_ZXI killed renamable $z0, renamable $x1, 0 :: (store (<vscale x 1 x s128>))
    STRQui killed renamable $q1, renamable $x1, 1 :: (store (s128))
    ; Neon STR + SVE STR
    STRQui killed renamable $q2, renamable $x1, 3 :: (store (s128))
    STR_ZXI killed renamable $z3, renamable $x1, 4 :: (store (<vscale x 1 x s128>))
    RET_ReallyLR
...
# CHECK-LABEL: name: do-not-pair-sve-with-neon-scaled
# CHECK: renamable $z0 = LDR_ZXI renamable $x0, 0 :: (load (<vscale x 1 x s128>))
# CHECK: renamable $q1 = LDRQui renamable $x0, 1 :: (load (s128))
# CHECK: renamable $q2 = LDRQui renamable $x0, 3 :: (load (s128))
# CHECK: renamable $z3 = LDR_ZXI renamable $x0, 4 :: (load (<vscale x 1 x s128>))
# CHECK: STR_ZXI killed renamable $z0, renamable $x1, 0 :: (store (<vscale x 1 x s128>))
# CHECK: STRQui killed renamable $q1, renamable $x1, 1 :: (store (s128))
# CHECK: STRQui killed renamable $q2, renamable $x1, 3 :: (store (s128))
# CHECK: STR_ZXI killed renamable $z3, renamable $x1, 4 :: (store (<vscale x 1 x s128>))
---
name: do-not-pair-sve-with-neon-unscaled
tracksRegLiveness: true
body: |
  bb.0:
    liveins: $x0, $x1
    ; SVE LDR + Neon LDUR
    renamable $z0 = LDR_ZXI renamable $x0, 0 :: (load (<vscale x 1 x s128>))
    renamable $q1 = LDURQi renamable $x0, 16 :: (load (s128))
    ; Neon LDUR + SVE LDR
    renamable $q2 = LDURQi renamable $x0, 48 :: (load (s128))
    renamable $z3 = LDR_ZXI renamable $x0, 4 :: (load (<vscale x 1 x s128>))
    ; SVE STR + Neon STUR
    STR_ZXI killed renamable $z0, renamable $x1, 0 :: (store (<vscale x 1 x s128>))
    STURQi killed renamable $q1, renamable $x1, 16 :: (store (s128))
    ; Neon STUR + SVE STR
    STURQi killed renamable $q2, renamable $x1, 48 :: (store (s128))
    STR_ZXI killed renamable $z3, renamable $x1, 4 :: (store (<vscale x 1 x s128>))
    RET_ReallyLR
...
# CHECK-LABEL: name: do-not-pair-sve-with-neon-unscaled
# CHECK: renamable $z0 = LDR_ZXI renamable $x0, 0 :: (load (<vscale x 1 x s128>))
# CHECK: renamable $q1 = LDURQi renamable $x0, 16 :: (load (s128))
# CHECK: renamable $q2 = LDURQi renamable $x0, 48 :: (load (s128))
# CHECK: renamable $z3 = LDR_ZXI renamable $x0, 4 :: (load (<vscale x 1 x s128>))
# CHECK: STR_ZXI killed renamable $z0, renamable $x1, 0 :: (store (<vscale x 1 x s128>))
# CHECK: STURQi killed renamable $q1, renamable $x1, 16 :: (store (s128))
# CHECK: STURQi killed renamable $q2, renamable $x1, 48 :: (store (s128))
# CHECK: STR_ZXI killed renamable $z3, renamable $x1, 4 :: (store (<vscale x 1 x s128>))