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1# RUN: llc -mtriple=amdgcn -mcpu=gfx900 -run-pass=si-insert-waitcnts -verify-machineinstrs %s -o - | FileCheck -check-prefix=GCN %s2 3# Check that the waitcnt propagates info in the case of a single basic block loop4 5# GCN-LABEL: waitcnt-loop-single-basic-block6# GCN: bb.07# GCN: S_WAITCNT 39528# GCN-NEXT: GLOBAL_STORE_DWORD9# GCN: S_WAITCNT 395310# GCN-NEXT: GLOBAL_STORE_DWORD11 12...13name: waitcnt-loop-single-basic-block14body: |15 bb.0:16 S_BRANCH %bb.117 bb.1:18 GLOBAL_STORE_DWORD $vgpr7_vgpr8, $vgpr11, 0, 0, implicit $exec19 $vgpr21 = GLOBAL_LOAD_DWORD $vgpr4_vgpr5, 0, 0, implicit $exec20 $vgpr10 = GLOBAL_LOAD_DWORD $vgpr10_vgpr11, 0, 0, implicit $exec21 GLOBAL_STORE_DWORD $vgpr14_vgpr15, $vgpr21, 0, 0, implicit $exec22 $vgpr11 = GLOBAL_LOAD_DWORD $vgpr11_vgpr12, 0, 0, implicit $exec23 S_CBRANCH_SCC1 %bb.1, implicit $scc24 bb.2:25 S_ENDPGM 026...27