1 # RUN: llc -o - %s -march=amdgcn -mcpu=fiji -run-pass=si-insert-skips -verify-machineinstrs | FileCheck -check-prefix=GCN %s 2 3 # GCN-LABEL: readlane_exec0 4 # GCN: bb.0 5 # GCN: S_CBRANCH_EXECZ %bb.2 6 7 --- 8 name: readlane_exec0 9 10 body: | 11 bb.0: 12 successors: %bb.1, %bb.2 13 liveins: $vgpr1_vgpr2:0x00000001, $vgpr2_vgpr3:0x00000003 14 15 $vgpr4 = V_AND_B32_e32 1, $vgpr1, implicit $exec 16 V_CMP_EQ_U32_e32 1, killed $vgpr4, implicit-def $vcc, implicit $exec 17 $sgpr0_sgpr1 = S_AND_SAVEEXEC_B64 killed $vcc, implicit-def $exec, implicit-def $scc, implicit $exec 18 SI_MASK_BRANCH %bb.2, implicit $exec 19 S_BRANCH %bb.1 20 21 bb.1: 22 23 $sgpr10 = V_READFIRSTLANE_B32 $vgpr2, implicit $exec 24 $sgpr11 = V_READFIRSTLANE_B32 $vgpr3, implicit $exec 25 $sgpr10 = S_LOAD_DWORD_IMM killed $sgpr10_sgpr11, 0, 0 26 S_WAITCNT 127 27 $vgpr0 = V_XOR_B32_e32 killed $sgpr10, killed $vgpr0, implicit $exec 28 29 bb.2: 30 31 $exec = S_OR_B64 $exec, killed $sgpr0_sgpr1, implicit-def $scc 32 ... 33
