| # RUN: llc -march=amdgcn -mcpu=gfx900 -run-pass=machine-scheduler -o - %s | FileCheck %s |
| |
| --- |
| # Check that the high latency loads are both scheduled first, before the |
| # multiplies, despite the presence of a barrier in the function. |
| # CHECK: BUFFER_LOAD_DWORD_OFFSET |
| # CHECK: BUFFER_LOAD_DWORD_OFFSET |
| # CHECK: V_MUL_LO_U32 |
| # CHECK: V_MUL_LO_U32 |
| name: test |
| tracksRegLiveness: true |
| body: | |
| bb.0: |
| liveins: $vgpr0, $vgpr1, $vgpr2, $vgpr3, $vgpr4, $vgpr5, $vgpr6, $vgpr7, $vgpr8, $vgpr9 |
| |
| undef %43.sub3:vreg_128 = COPY $vgpr9 |
| undef %42.sub2:vreg_128 = COPY $vgpr8 |
| undef %41.sub1:vreg_128 = COPY $vgpr7 |
| undef %26.sub0:vreg_128 = COPY $vgpr6 |
| undef %46.sub3:vreg_128 = COPY $vgpr5 |
| undef %45.sub2:vreg_128 = COPY $vgpr4 |
| undef %44.sub1:vreg_128 = COPY $vgpr3 |
| undef %32.sub0:vreg_128 = COPY $vgpr2 |
| undef %38.sub1:vreg_64 = COPY $vgpr1 |
| %38.sub0:vreg_64 = COPY $vgpr0 |
| |
| S_BARRIER |
| |
| undef %33.sub0:sgpr_128 = V_READFIRSTLANE_B32 %32.sub0, implicit $exec |
| %33.sub1:sgpr_128 = V_READFIRSTLANE_B32 %44.sub1, implicit $exec |
| %33.sub2:sgpr_128 = V_READFIRSTLANE_B32 %45.sub2, implicit $exec |
| %33.sub3:sgpr_128 = V_READFIRSTLANE_B32 %46.sub3, implicit $exec |
| %15:vgpr_32 = BUFFER_LOAD_DWORD_OFFSET %33, 0, 0, 0, 0, 0, 0, 0, implicit $exec |
| %39:vgpr_32 = V_MUL_LO_U32 %15, %15, implicit $exec |
| |
| undef %27.sub0:sgpr_128 = V_READFIRSTLANE_B32 %26.sub0, implicit $exec |
| %27.sub1:sgpr_128 = V_READFIRSTLANE_B32 %41.sub1, implicit $exec |
| %27.sub2:sgpr_128 = V_READFIRSTLANE_B32 %42.sub2, implicit $exec |
| %27.sub3:sgpr_128 = V_READFIRSTLANE_B32 %43.sub3, implicit $exec |
| %19:vgpr_32 = BUFFER_LOAD_DWORD_OFFSET %27, 0, 0, 0, 0, 0, 0, 0, implicit $exec |
| %40:vgpr_32 = V_MUL_LO_U32 %19, %19, implicit $exec |
| |
| %23:vgpr_32 = V_ADD_U32_e32 %39, %40, implicit $exec |
| GLOBAL_STORE_DWORD %38, %23, 0, 0, 0, 0, implicit $exec |
| S_ENDPGM 0 |
| ... |