1 # RUN: llc -march=amdgcn -mcpu=gfx1010 -start-before=greedy -verify-machineinstrs -o - %s | FileCheck -check-prefix=GCN %s
3 # GCN-LABEL: {{^}}"subvector-basic-bb"
4 # GCN: s_subvector_loop_begin [[RS:s[0-9]]], BB0_2
5 # GCN: s_subvector_loop_end [[RS]], BB0_1
6 name: subvector-basic-bb
7 tracksRegLiveness: true
9 scratchRSrcReg: $sgpr0_sgpr1_sgpr2_sgpr3
10 frameOffsetReg: $sgpr5
11 stackPtrOffsetReg: $sgpr32
15 successors: %bb.1, %bb.2
17 %1:sgpr_64 = COPY $sgpr0_sgpr1
18 %4:sgpr_128 = S_LOAD_DWORDX4_IMM %1, 36, 0
19 %11:sreg_64_xexec = S_LOAD_DWORDX2_IMM %4.sub2_sub3, 0, 0
20 undef %15.sub0:vreg_64 = COPY %4.sub0
21 %15.sub1:vreg_64 = COPY %4.sub1
22 %16:vgpr_32 = COPY %1.sub0
23 S_SUBVECTOR_LOOP_BEGIN %bb.2, undef %19:sreg_32, implicit-def $exec, implicit $exec, implicit-def %19
26 successors: %bb.1, %bb.2
28 %14:sreg_32_xm0 = S_ADD_I32 %11.sub0, %11.sub1, implicit-def dead $scc
29 %16:vgpr_32 = COPY %14
30 S_SUBVECTOR_LOOP_END %bb.1, %19:sreg_32, implicit-def $exec, implicit $exec, implicit-def %19
34 GLOBAL_STORE_DWORD %15, %16, 0, 0, implicit $exec