diff options
Diffstat (limited to 'llvm/test/CodeGen/AMDGPU/dpp_combine.mir')
| -rw-r--r-- | llvm/test/CodeGen/AMDGPU/dpp_combine.mir | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/AMDGPU/dpp_combine.mir b/llvm/test/CodeGen/AMDGPU/dpp_combine.mir index d98cde5cff4..c43fb037d07 100644 --- a/llvm/test/CodeGen/AMDGPU/dpp_combine.mir +++ b/llvm/test/CodeGen/AMDGPU/dpp_combine.mir @@ -380,6 +380,38 @@ body: | %9:vgpr_32 = V_SUB_I32_e32 5, %7, implicit-def $vcc, implicit $exec ... +# tests on sequences of dpp consumers followed by control flow +# CHECK-LABEL: name: dpp_seq_cf +# CHECK: %4:vgpr_32 = V_ADD_I32_dpp %1, %0, %1, 1, 14, 15, 0, implicit-def $vcc, implicit $exec +# CHECK: %5:vgpr_32 = V_SUBREV_I32_dpp %1, %0, %1, 1, 14, 15, 0, implicit-def $vcc, implicit $exec +# CHECK: %6:vgpr_32 = V_OR_B32_dpp %1, %0, %1, 1, 14, 15, 0, implicit $exec + +name: dpp_seq_cf +tracksRegLiveness: true +body: | + bb.0: + successors: %bb.1, %bb.2 + liveins: $vgpr0, $vgpr1 + %0:vgpr_32 = COPY $vgpr0 + %1:vgpr_32 = COPY $vgpr1 + %2:vgpr_32 = V_MOV_B32_e32 0, implicit $exec + + %3:vgpr_32 = V_MOV_B32_dpp %2, %0, 1, 14, 15, 0, implicit $exec + %4:vgpr_32 = V_ADD_I32_e32 %3, %1, implicit-def $vcc, implicit $exec + %5:vgpr_32 = V_SUB_I32_e32 %1, %3, implicit-def $vcc, implicit $exec + %6:vgpr_32 = V_OR_B32_e32 %3, %1, implicit $exec + + %7:sreg_64 = V_CMP_EQ_U32_e64 %5, %6, implicit $exec + %8:sreg_64 = SI_IF %7, %bb.2, implicit-def dead $exec, implicit-def dead $scc, implicit $exec + S_BRANCH %bb.1 + + bb.1: + successors: %bb.2 + + bb.2: + SI_END_CF %8, implicit-def dead $exec, implicit-def dead $scc, implicit $exec +... + # old reg def is in diff BB - cannot combine # CHECK-LABEL: name: old_in_diff_bb # CHECK: %3:vgpr_32 = V_MOV_B32_dpp %2, %1, 1, 1, 1, 0, implicit $exec |
