llvm/test/CodeGen/AMDGPU/swp-amdgpu-pipeline-neg-inlineasm.mir

# RUN: llc -mtriple=amdgpu9.50-amd-amdhsa -run-pass=pipeliner -debug-only=pipeliner %s -filetype=null 2>&1 | FileCheck %s
# REQUIRES: asserts
# Reject a loop whose body contains inline asm.
# analyzeLoopForPipelining returns nullptr.
# CHECK: Unable to analyzeLoop, can NOT pipeline Loop

---
name:            swp_amdgpu_pipeline_neg_inlineasm
tracksRegLiveness: true
isSSA:           true
liveins:
  - { reg: '$sgpr8' }
machineFunctionInfo:
  isEntryFunction: true
  argumentInfo:
    firstKernArgPreloadReg: { reg: '$sgpr8' }
body:             |
  bb.0:
    liveins: $sgpr8

    %0:sreg_32 = COPY $sgpr8
    %1:sreg_32 = S_MOV_B32 0

  bb.1:
    successors: %bb.2, %bb.1

    %2:sreg_32 = PHI %1, %bb.0, %3, %bb.1
    INLINEASM &"s_nop 0", 1 /* sideeffect attdialect */
    %3:sreg_32 = S_ADD_I32 %2, 1, implicit-def dead $scc
    S_CMP_LG_U32 %0, %3, implicit-def $scc
    S_CBRANCH_SCC1 %bb.1, implicit $scc
    S_BRANCH %bb.2

  bb.2:
    S_ENDPGM 0
...