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LLVM13 (2021/7/18)
author Shinji KONO <kono@ie.u-ryukyu.ac.jp>
date Sun, 18 Jul 2021 22:43:00 +0900
parents 79ff65ed7e25
children 1f2b6ac9f198
line wrap: on
line source

# RUN: llc -march=amdgcn -mcpu=gfx1010 -verify-machineinstrs -run-pass si-insert-waitcnts -o - %s | FileCheck -check-prefix=GFX10 %s

# GFX10-LABEL: waitcnt-vscnt
# GFX10: GLOBAL_ATOMIC_ADD_RTN
# GFX10-NEXT: S_WAITCNT 49279
---
name: waitcnt-vscnt
machineFunctionInfo:
  isEntryFunction: true
body: |
  bb.0:
    liveins: $sgpr0_sgpr1
    $sgpr4 = S_LOAD_DWORD_IMM $sgpr0_sgpr1, 4, 0 :: (dereferenceable invariant load (s32) from `i32 addrspace(4)* undef`)
    S_WAITCNT_VSCNT undef $sgpr_null, 0
    $vgpr0 = GLOBAL_ATOMIC_ADD_RTN $vgpr0_vgpr1, $vgpr2, 0, 1, implicit $exec :: (load store syncscope("agent") seq_cst (s32), addrspace 1)
    S_CMP_LG_U32 killed $sgpr4, 0, implicit-def $scc
...