| # NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py |
| # RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx900 -verify-machineinstrs -run-pass post-RA-hazard-rec %s -o - | FileCheck -check-prefix=GCN %s |
| |
| # WAVE_BARRIER and SI_MASKED_UNREACHABLE ect. are not really instructions. To |
| # fix the hazard (m0 def followed by V_INTERP), the compiler should insert a |
| # S_NOP. |
| |
| --- |
| name: hazard_wave_barrier |
| tracksRegLiveness: true |
| body: | |
| bb.0: |
| liveins: $sgpr0 |
| |
| ; GCN-LABEL: name: hazard_wave_barrier |
| ; GCN: liveins: $sgpr0 |
| ; GCN-NEXT: {{ $}} |
| ; GCN-NEXT: $m0 = S_MOV_B32 killed renamable $sgpr0 |
| ; GCN-NEXT: WAVE_BARRIER |
| ; GCN-NEXT: S_NOP 0 |
| ; GCN-NEXT: renamable $vgpr0 = V_INTERP_MOV_F32 2, 0, 0, implicit $mode, implicit $m0, implicit $exec |
| ; GCN-NEXT: renamable $sgpr1 = S_MOV_B32 0 |
| ; GCN-NEXT: S_ENDPGM 0 |
| $m0 = S_MOV_B32 killed renamable $sgpr0 |
| WAVE_BARRIER |
| renamable $vgpr0 = V_INTERP_MOV_F32 2, 0, 0, implicit $mode, implicit $m0, implicit $exec |
| renamable $sgpr1 = S_MOV_B32 0 |
| S_ENDPGM 0 |
| |
| ... |
| |
| --- |
| name: hazard-masked-unreachable |
| tracksRegLiveness: true |
| body: | |
| ; GCN-LABEL: name: hazard-masked-unreachable |
| ; GCN: bb.0: |
| ; GCN-NEXT: successors: %bb.1(0x80000000) |
| ; GCN-NEXT: liveins: $sgpr0 |
| ; GCN-NEXT: {{ $}} |
| ; GCN-NEXT: $m0 = S_MOV_B32 killed renamable $sgpr0 |
| ; GCN-NEXT: SI_MASKED_UNREACHABLE |
| ; GCN-NEXT: S_NOP 0 |
| ; GCN-NEXT: renamable $vgpr0 = V_INTERP_MOV_F32 2, 0, 0, implicit $mode, implicit $m0, implicit $exec |
| ; GCN-NEXT: renamable $sgpr1 = S_MOV_B32 0 |
| ; GCN-NEXT: {{ $}} |
| ; GCN-NEXT: bb.1: |
| ; GCN-NEXT: S_ENDPGM 0 |
| bb.0: |
| liveins: $sgpr0 |
| |
| $m0 = S_MOV_B32 killed renamable $sgpr0 |
| SI_MASKED_UNREACHABLE |
| renamable $vgpr0 = V_INTERP_MOV_F32 2, 0, 0, implicit $mode, implicit $m0, implicit $exec |
| renamable $sgpr1 = S_MOV_B32 0 |
| bb.1: |
| S_ENDPGM 0 |
| ... |
| |
| --- |
| name: hazard_sched_barrier |
| tracksRegLiveness: true |
| body: | |
| bb.0: |
| liveins: $sgpr0 |
| |
| ; GCN-LABEL: name: hazard_sched_barrier |
| ; GCN: liveins: $sgpr0 |
| ; GCN-NEXT: {{ $}} |
| ; GCN-NEXT: $m0 = S_MOV_B32 killed renamable $sgpr0 |
| ; GCN-NEXT: SCHED_BARRIER 0 |
| ; GCN-NEXT: S_NOP 0 |
| ; GCN-NEXT: renamable $vgpr0 = V_INTERP_MOV_F32 2, 0, 0, implicit $mode, implicit $m0, implicit $exec |
| ; GCN-NEXT: renamable $sgpr1 = S_MOV_B32 0 |
| ; GCN-NEXT: S_ENDPGM 0 |
| $m0 = S_MOV_B32 killed renamable $sgpr0 |
| SCHED_BARRIER 0 |
| renamable $vgpr0 = V_INTERP_MOV_F32 2, 0, 0, implicit $mode, implicit $m0, implicit $exec |
| renamable $sgpr1 = S_MOV_B32 0 |
| S_ENDPGM 0 |
| |
| ... |