llvm/test/CodeGen/AMDGPU/spillv16.mir

# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
# RUN: llc -march=amdgcn -verify-machineinstrs -mcpu=gfx1100 -mattr=+real-true16 -run-pass=regallocfast -o - %s | FileCheck -check-prefix=SPILLED %s
# RUN: llc -march=amdgcn -verify-machineinstrs -mcpu=gfx1100 -mattr=+real-true16 -run-pass=regallocfast,prologepilog -o - %s | FileCheck -check-prefix=EXPANDED %s

---
name: spill_restore_vgpr16
tracksRegLiveness: true
machineFunctionInfo:
  scratchRSrcReg: $sgpr0_sgpr1_sgpr2_sgpr3
  stackPtrOffsetReg: $sgpr32
body: |
  ; SPILLED-LABEL: name: spill_restore_vgpr16
  ; SPILLED: bb.0:
  ; SPILLED-NEXT:   successors: %bb.1(0x80000000)
  ; SPILLED-NEXT: {{  $}}
  ; SPILLED-NEXT:   S_NOP 0, implicit-def renamable $vgpr0_lo16, implicit-def renamable $vgpr0_hi16
  ; SPILLED-NEXT:   SI_SPILL_V16_SAVE killed $vgpr0_hi16, %stack.1, $sgpr32, 0, implicit $exec :: (store (s16) into %stack.1, addrspace 5)
  ; SPILLED-NEXT:   SI_SPILL_V16_SAVE killed $vgpr0_lo16, %stack.0, $sgpr32, 0, implicit $exec :: (store (s16) into %stack.0, addrspace 5)
  ; SPILLED-NEXT:   S_CBRANCH_SCC1 %bb.1, implicit undef $scc
  ; SPILLED-NEXT: {{  $}}
  ; SPILLED-NEXT: bb.1:
  ; SPILLED-NEXT:   successors: %bb.2(0x80000000)
  ; SPILLED-NEXT: {{  $}}
  ; SPILLED-NEXT:   S_NOP 1
  ; SPILLED-NEXT: {{  $}}
  ; SPILLED-NEXT: bb.2:
  ; SPILLED-NEXT:   $vgpr0_lo16 = SI_SPILL_V16_RESTORE %stack.0, $sgpr32, 0, implicit $exec :: (load (s16) from %stack.0, addrspace 5)
  ; SPILLED-NEXT:   $vgpr0_hi16 = SI_SPILL_V16_RESTORE %stack.1, $sgpr32, 0, implicit $exec :: (load (s16) from %stack.1, addrspace 5)
  ; SPILLED-NEXT:   S_NOP 0, implicit killed renamable $vgpr0_lo16, implicit killed renamable $vgpr0_hi16
  ;
  ; EXPANDED-LABEL: name: spill_restore_vgpr16
  ; EXPANDED: bb.0:
  ; EXPANDED-NEXT:   successors: %bb.1(0x80000000)
  ; EXPANDED-NEXT: {{  $}}
  ; EXPANDED-NEXT:   S_NOP 0, implicit-def renamable $vgpr0_lo16, implicit-def renamable $vgpr0_hi16
  ; EXPANDED-NEXT:   SCRATCH_STORE_SHORT_SADDR_t16 killed $vgpr0_hi16, $sgpr32, 2, 0, implicit $exec, implicit $flat_scr :: (store (s16) into %stack.1, addrspace 5)
  ; EXPANDED-NEXT:   SCRATCH_STORE_SHORT_SADDR_t16 killed $vgpr0_lo16, $sgpr32, 0, 0, implicit $exec, implicit $flat_scr :: (store (s16) into %stack.0, addrspace 5)
  ; EXPANDED-NEXT:   S_CBRANCH_SCC1 %bb.1, implicit undef $scc
  ; EXPANDED-NEXT: {{  $}}
  ; EXPANDED-NEXT: bb.1:
  ; EXPANDED-NEXT:   successors: %bb.2(0x80000000)
  ; EXPANDED-NEXT: {{  $}}
  ; EXPANDED-NEXT:   S_NOP 1
  ; EXPANDED-NEXT: {{  $}}
  ; EXPANDED-NEXT: bb.2:
  ; EXPANDED-NEXT:   $vgpr0_lo16 = SCRATCH_LOAD_SHORT_D16_SADDR_t16 $sgpr32, 0, 0, implicit $exec, implicit $flat_scr :: (load (s16) from %stack.0, addrspace 5)
  ; EXPANDED-NEXT:   $vgpr0_hi16 = SCRATCH_LOAD_SHORT_D16_SADDR_t16 $sgpr32, 2, 0, implicit $exec, implicit $flat_scr :: (load (s16) from %stack.1, addrspace 5)
  ; EXPANDED-NEXT:   S_NOP 0, implicit killed renamable $vgpr0_lo16, implicit killed renamable $vgpr0_hi16
  bb.0:
    S_NOP 0, implicit-def %0:vgpr_16, implicit-def %1:vgpr_16
    S_CBRANCH_SCC1 implicit undef $scc, %bb.1

  bb.1:
    S_NOP 1

  bb.2:
    S_NOP 0, implicit %0, implicit %1
...