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1# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py2# RUN: llc -mtriple=amdgcn -mcpu=gfx908 -run-pass=machine-scheduler -verify-misched -o - %s | FileCheck %s3# RUN: llc -mtriple=amdgcn -mcpu=gfx908 -passes=machine-scheduler -verify-misched -o - %s | FileCheck %s4 5# This would hang after removing edges from the SCHED_BARRIER since the number6# of Preds/Succs would be left in an inconsistent state.7 8---9name: sched_barrier_cluster_dep_hang10tracksRegLiveness: true11body: |12 ; CHECK-LABEL: name: sched_barrier_cluster_dep_hang13 ; CHECK: bb.0:14 ; CHECK-NEXT: successors: %bb.1(0x80000000)15 ; CHECK-NEXT: {{ $}}16 ; CHECK-NEXT: [[DEF:%[0-9]+]]:sreg_64_xexec_xnull = IMPLICIT_DEF17 ; CHECK-NEXT: [[DEF1:%[0-9]+]]:vgpr_32 = IMPLICIT_DEF18 ; CHECK-NEXT: {{ $}}19 ; CHECK-NEXT: bb.1:20 ; CHECK-NEXT: SCHED_BARRIER 12821 ; CHECK-NEXT: [[GLOBAL_LOAD_DWORD_SADDR:%[0-9]+]]:vgpr_32 = GLOBAL_LOAD_DWORD_SADDR [[DEF]], [[DEF1]], 512, 0, implicit $exec :: (load (s32))22 ; CHECK-NEXT: [[GLOBAL_LOAD_DWORD_SADDR1:%[0-9]+]]:vgpr_32 = GLOBAL_LOAD_DWORD_SADDR [[DEF]], [[DEF1]], 0, 0, implicit $exec :: (load (s32))23 ; CHECK-NEXT: SCHED_BARRIER 12824 ; CHECK-NEXT: [[V_MUL_LO_U32_e64_:%[0-9]+]]:vgpr_32 = nsw V_MUL_LO_U32_e64 [[GLOBAL_LOAD_DWORD_SADDR]], [[GLOBAL_LOAD_DWORD_SADDR]], implicit $exec25 ; CHECK-NEXT: [[V_MUL_LO_U32_e64_1:%[0-9]+]]:vgpr_32 = nsw V_MUL_LO_U32_e64 [[GLOBAL_LOAD_DWORD_SADDR1]], [[GLOBAL_LOAD_DWORD_SADDR1]], implicit $exec26 ; CHECK-NEXT: GLOBAL_STORE_DWORD_SADDR [[DEF1]], [[V_MUL_LO_U32_e64_]], [[DEF]], 512, 0, implicit $exec :: (store (s32))27 ; CHECK-NEXT: GLOBAL_STORE_DWORD_SADDR [[DEF1]], [[V_MUL_LO_U32_e64_1]], [[DEF]], 0, 0, implicit $exec :: (store (s32))28 ; CHECK-NEXT: S_ENDPGM 029 bb.0:30 %0:sreg_64_xexec_xnull = IMPLICIT_DEF31 %1:vgpr_32 = IMPLICIT_DEF32 33 bb.1:34 SCHED_BARRIER 12835 %3:vgpr_32 = GLOBAL_LOAD_DWORD_SADDR %0, %1, 0, 0, implicit $exec :: (load (s32))36 %5:vgpr_32 = GLOBAL_LOAD_DWORD_SADDR %0, %1, 512, 0, implicit $exec :: (load (s32))37 SCHED_BARRIER 12838 %6:vgpr_32 = nsw V_MUL_LO_U32_e64 %5, %5, implicit $exec39 %4:vgpr_32 = nsw V_MUL_LO_U32_e64 %3, %3, implicit $exec40 GLOBAL_STORE_DWORD_SADDR %1, %6, %0, 512, 0, implicit $exec :: (store (s32))41 GLOBAL_STORE_DWORD_SADDR %1, %4, %0, 0, 0, implicit $exec :: (store (s32))42 S_ENDPGM 043...44