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1# RUN: llc -mtriple=amdgcn -mcpu=gfx803 -verify-machineinstrs -run-pass si-insert-waitcnts -o - %s | FileCheck -check-prefixes=GCN,GFX8 %s2# RUN: llc -mtriple=amdgcn -mcpu=gfx900 -verify-machineinstrs -run-pass si-insert-waitcnts -o - %s | FileCheck -check-prefixes=GCN,GFX9 %s3 4--- |5 6 define amdgpu_ps void @irreducible_loop() {7 ret void8 }9 define amdgpu_ps void @irreducible_loop_extended() {10 ret void11 }12 13...14---15 16# GCN-LABEL: name: irreducible_loop{{$}}17# GCN: S_LOAD_DWORDX4_IMM18# GFX8: S_WAITCNT 127{{$}}19# GFX9: S_WAITCNT 49279{{$}}20# GCN: S_BUFFER_LOAD_DWORD_IMM21# GFX8: S_WAITCNT 127{{$}}22# GFX9: S_WAITCNT 49279{{$}}23# GCN: S_CMP_GE_I3224name: irreducible_loop25body: |26 bb.0:27 successors: %bb.3, %bb.228 29 S_CBRANCH_VCCZ %bb.2, implicit $vcc30 S_BRANCH %bb.331 32 bb.1:33 successors: %bb.3, %bb.234 35 S_CBRANCH_VCCNZ %bb.3, implicit $vcc36 37 bb.2:38 successors: %bb.339 40 renamable $sgpr4_sgpr5_sgpr6_sgpr7 = S_LOAD_DWORDX4_IMM renamable $sgpr0_sgpr1, 0, 041 renamable $sgpr3 = S_BUFFER_LOAD_DWORD_IMM killed renamable $sgpr4_sgpr5_sgpr6_sgpr7, 0, 042 43 bb.3:44 successors: %bb.1, %bb.445 46 S_CMP_GE_I32 renamable $sgpr2, renamable $sgpr3, implicit-def $scc47 S_CBRANCH_SCC0 %bb.1, implicit killed $scc48 49 bb.4:50 51 S_ENDPGM 052 53...54 55# GCN-LABEL: name: irreducible_loop_extended56 57# GCN: S_LOAD_DWORDX4_IMM58# GFX8: S_WAITCNT 127{{$}}59# GFX9: S_WAITCNT 49279{{$}}60# GCN: BUFFER_STORE_DWORD_OFFEN_exact61# GFX8: S_WAITCNT 127{{$}}62# GFX9: S_WAITCNT 49279{{$}}63# GCN: BUFFER_STORE_DWORD_OFFEN_exact64# GCN: S_LOAD_DWORDX4_IMM65# GFX8: S_WAITCNT 127{{$}}66# GFX9: S_WAITCNT 49279{{$}}67# GCN: BUFFER_ATOMIC_ADD_OFFSET_RTN68# GCN: S_WAITCNT 395269# GCN: FLAT_STORE_DWORD70# GCN: S_ENDPGM 071name: irreducible_loop_extended72 73body: |74 bb.0:75 successors: %bb.1, %bb.276 $sgpr4_sgpr5_sgpr6_sgpr7 = S_LOAD_DWORDX4_IMM renamable $sgpr2_sgpr3, 0, 077 S_CBRANCH_VCCZ %bb.2, implicit $vcc78 79 bb.1:80 successors: %bb.281 BUFFER_STORE_DWORD_OFFEN_exact killed renamable $vgpr3, renamable $vgpr2, renamable $sgpr4_sgpr5_sgpr6_sgpr7, 0, 0, 0, 0, implicit $exec82 83 bb.2:84 successors: %bb.3, %bb.685 S_CBRANCH_VCCNZ %bb.6, implicit $vcc86 87 bb.3:88 successors: %bb.4, %bb.589 BUFFER_STORE_DWORD_OFFEN_exact killed renamable $vgpr3, killed renamable $vgpr2, killed renamable $sgpr4_sgpr5_sgpr6_sgpr7, 0, 0, 0, 0, implicit $exec90 S_CBRANCH_VCCNZ %bb.5, implicit $vcc91 92 bb.4:93 successors: %bb.594 renamable $sgpr12_sgpr13_sgpr14_sgpr15 = S_LOAD_DWORDX4_IMM killed renamable $sgpr2_sgpr3, 64, 095 renamable $vgpr2 = BUFFER_ATOMIC_ADD_OFFSET_RTN killed renamable $vgpr2, killed renamable $sgpr12_sgpr13_sgpr14_sgpr15, 0, 0, 1, implicit $exec96 97 bb.5:98 successors: %bb.699 100 bb.6:101 FLAT_STORE_DWORD $vgpr3_vgpr4, $vgpr2, 0, 0, implicit $exec, implicit $flat_scr102 S_ENDPGM 0103...104