| # RUN: llc -march=amdgcn -mcpu=gfx900 -verify-machineinstrs -run-pass si-insert-waitcnts -o - %s | FileCheck -check-prefix=GFX9 %s |
| # RUN: llc -march=amdgcn -mcpu=gfx1010 -verify-machineinstrs -run-pass si-insert-waitcnts -o - %s | FileCheck -check-prefix=GFX10 %s |
| |
| --- |
| |
| # The loop contains a store and a use of a value loaded outside of the loop. |
| # We expect the waitcnt for the use to be hoisted on GFX9, but not on GFX10+ |
| # because we have the vscnt counter. |
| |
| # GFX9-LABEL: waitcnt_vm_loop |
| # GFX9-LABEL: bb.0: |
| # GFX9: S_WAITCNT 39 |
| # GFX9-LABEL: bb.1: |
| # GFX9-NOT: S_WAITCNT 39 |
| # GFX9-LABEL: bb.2: |
| |
| # GFX10-LABEL: waitcnt_vm_loop |
| # GFX10-LABEL: bb.0: |
| # GFX10-NOT: S_WAITCNT 16 |
| # GFX10-LABEL: bb.1: |
| # GFX10: S_WAITCNT 16 |
| # GFX10-LABEL: bb.2: |
| name: waitcnt_vm_loop |
| body: | |
| bb.0: |
| successors: %bb.1 |
| |
| $vgpr0 = BUFFER_LOAD_FORMAT_X_IDXEN killed $vgpr0, $sgpr0_sgpr1_sgpr2_sgpr3, 0, 0, 0, 0, implicit $exec |
| S_BRANCH %bb.1 |
| |
| bb.1: |
| successors: %bb.1, %bb.2 |
| |
| BUFFER_STORE_DWORD_OFFEN_exact $vgpr5, $vgpr6, $sgpr0_sgpr1_sgpr2_sgpr3, 0, 0, 0, 0, implicit $exec |
| $vgpr1 = V_ADD_U32_e32 $vgpr0, $vgpr2, implicit $exec |
| S_CMP_LG_U32 killed $sgpr3, $sgpr4, implicit-def $scc |
| S_CBRANCH_SCC1 %bb.1, implicit killed $scc |
| S_BRANCH %bb.2 |
| |
| bb.2: |
| S_ENDPGM 0 |
| |
| ... |
| --- |
| |
| # Same as before, but the loop preheader has no terminator. |
| |
| # GFX9-LABEL: waitcnt_vm_loop_noterm |
| # GFX9-LABEL: bb.0: |
| # GFX9: S_WAITCNT 39 |
| # GFX9-LABEL: bb.1: |
| # GFX9-NOT: S_WAITCNT 39 |
| # GFX9-LABEL: bb.2: |
| |
| # GFX10-LABEL: waitcnt_vm_loop_noterm |
| # GFX10-LABEL: bb.0: |
| # GFX10-NOT: S_WAITCNT 16 |
| # GFX10-LABEL: bb.1: |
| # GFX10: S_WAITCNT 16 |
| # GFX10-LABEL: bb.2: |
| name: waitcnt_vm_loop_noterm |
| body: | |
| bb.0: |
| successors: %bb.1 |
| |
| $vgpr0 = BUFFER_LOAD_FORMAT_X_IDXEN killed $vgpr0, $sgpr0_sgpr1_sgpr2_sgpr3, 0, 0, 0, 0, implicit $exec |
| |
| bb.1: |
| successors: %bb.1, %bb.2 |
| |
| BUFFER_STORE_DWORD_OFFEN_exact $vgpr5, $vgpr6, $sgpr0_sgpr1_sgpr2_sgpr3, 0, 0, 0, 0, implicit $exec |
| $vgpr1 = V_ADD_U32_e32 $vgpr0, $vgpr2, implicit $exec |
| S_CMP_LG_U32 killed $sgpr3, $sgpr4, implicit-def $scc |
| S_CBRANCH_SCC1 %bb.1, implicit killed $scc |
| S_BRANCH %bb.2 |
| |
| bb.2: |
| S_ENDPGM 0 |
| |
| ... |
| --- |
| |
| # Same as before but there is a preexisting waitcnt in the preheader. |
| |
| # GFX9-LABEL: waitcnt_vm_loop_noterm_wait |
| # GFX9-LABEL: bb.0: |
| # GFX9: S_WAITCNT 39 |
| # GFX9-NOT: S_WAITCNT 39 |
| # GFX9-LABEL: bb.1: |
| # GFX9-NOT: S_WAITCNT 39 |
| # GFX9-LABEL: bb.2: |
| name: waitcnt_vm_loop_noterm_wait |
| body: | |
| bb.0: |
| successors: %bb.1 |
| |
| $vgpr0 = BUFFER_LOAD_FORMAT_X_IDXEN killed $vgpr0, $sgpr0_sgpr1_sgpr2_sgpr3, 0, 0, 0, 0, implicit $exec |
| S_WAITCNT 3952 |
| |
| bb.1: |
| successors: %bb.1, %bb.2 |
| |
| BUFFER_STORE_DWORD_OFFEN_exact $vgpr5, $vgpr6, $sgpr0_sgpr1_sgpr2_sgpr3, 0, 0, 0, 0, implicit $exec |
| $vgpr1 = V_ADD_U32_e32 $vgpr0, $vgpr2, implicit $exec |
| S_CMP_LG_U32 killed $sgpr3, $sgpr4, implicit-def $scc |
| S_CBRANCH_SCC1 %bb.1, implicit killed $scc |
| S_BRANCH %bb.2 |
| |
| bb.2: |
| S_ENDPGM 0 |
| |
| ... |
| --- |
| |
| # The loop contains a store, a load, and uses values loaded both inside and |
| # outside the loop. |
| # We do not expect the waitcnt to be hoisted out of the loop. |
| |
| # GFX9-LABEL: waitcnt_vm_loop_load |
| # GFX9-LABEL: bb.0: |
| # GFX9-NOT: S_WAITCNT 39 |
| # GFX9-LABEL: bb.1: |
| # GFX9: S_WAITCNT 39 |
| # GFX9-LABEL: bb.2: |
| |
| # GFX10-LABEL: waitcnt_vm_loop_load |
| # GFX10-LABEL: bb.0: |
| # GFX10-NOT: S_WAITCNT 16 |
| # GFX10-LABEL: bb.1: |
| # GFX10: S_WAITCNT 16 |
| # GFX10-LABEL: bb.2: |
| name: waitcnt_vm_loop_load |
| body: | |
| bb.0: |
| successors: %bb.1 |
| |
| $vgpr0 = BUFFER_LOAD_FORMAT_X_IDXEN killed $vgpr0, $sgpr0_sgpr1_sgpr2_sgpr3, 0, 0, 0, 0, implicit $exec |
| S_BRANCH %bb.1 |
| |
| bb.1: |
| successors: %bb.1, %bb.2 |
| |
| BUFFER_STORE_DWORD_OFFEN_exact $vgpr5, $vgpr6, $sgpr0_sgpr1_sgpr2_sgpr3, 0, 0, 0, 0, implicit $exec |
| $vgpr7 = BUFFER_LOAD_FORMAT_X_IDXEN killed $vgpr7, $sgpr0_sgpr1_sgpr2_sgpr3, 0, 0, 0, 0, implicit $exec |
| $vgpr1 = V_ADD_U32_e32 $vgpr0, $vgpr7, implicit $exec |
| S_CMP_LG_U32 killed $sgpr3, $sgpr4, implicit-def $scc |
| S_CBRANCH_SCC1 %bb.1, implicit killed $scc |
| S_BRANCH %bb.2 |
| |
| bb.2: |
| S_ENDPGM 0 |
| |
| ... |
| --- |
| |
| # The loop contains a use of a value loaded outside of the loop, and no store |
| # nor load. |
| # We do not expect the waitcnt to be hoisted out of the loop. |
| |
| # GFX9-LABEL: waitcnt_vm_loop_no_store |
| # GFX9-LABEL: bb.0: |
| # GFX9-NOT: S_WAITCNT 39 |
| # GFX9-LABEL: bb.1: |
| # GFX9: S_WAITCNT 39 |
| # GFX9-LABEL: bb.2: |
| |
| # GFX10-LABEL: waitcnt_vm_loop_no_store |
| # GFX10-LABEL: bb.0: |
| # GFX10-NOT: S_WAITCNT 16 |
| # GFX10-LABEL: bb.1: |
| # GFX10: S_WAITCNT 16 |
| # GFX10-LABEL: bb.2: |
| name: waitcnt_vm_loop_no_store |
| body: | |
| bb.0: |
| successors: %bb.1 |
| |
| $vgpr0 = BUFFER_LOAD_FORMAT_X_IDXEN killed $vgpr0, $sgpr0_sgpr1_sgpr2_sgpr3, 0, 0, 0, 0, implicit $exec |
| S_BRANCH %bb.1 |
| |
| bb.1: |
| successors: %bb.1, %bb.2 |
| |
| $vgpr1 = V_ADD_U32_e32 $vgpr0, $vgpr2, implicit $exec |
| S_CMP_LG_U32 killed $sgpr3, $sgpr4, implicit-def $scc |
| S_CBRANCH_SCC1 %bb.1, implicit killed $scc |
| S_BRANCH %bb.2 |
| |
| bb.2: |
| S_ENDPGM 0 |
| |
| ... |
| --- |
| |
| # The loop contains a store, no load, and doesn't use any value loaded inside |
| # or outside of the loop. There is only one use of the loaded value in the |
| # exit block. |
| # We don't expect any s_waitcnt vmcnt in the loop body or preheader, but expect |
| # one in the exit block. |
| |
| |
| # GFX9-LABEL: waitcnt_vm_loop_no_use |
| # GFX9-LABEL: bb.0: |
| # GFX9-NOT: S_WAITCNT 39 |
| # GFX9-LABEL: bb.1: |
| # GFX9-NOT: S_WAITCNT 39 |
| # GFX9-LABEL: bb.2: |
| |
| # GFX10-LABEL: waitcnt_vm_loop_no_use |
| # GFX10-LABEL: bb.0: |
| # GFX10-NOT: S_WAITCNT 16 |
| # GFX10-LABEL: bb.1: |
| # GFX10-NOT: S_WAITCNT 16 |
| # GFX10-LABEL: bb.2: |
| name: waitcnt_vm_loop_no_use |
| body: | |
| bb.0: |
| successors: %bb.1 |
| |
| $vgpr0 = BUFFER_LOAD_FORMAT_X_IDXEN killed $vgpr0, $sgpr0_sgpr1_sgpr2_sgpr3, 0, 0, 0, 0, implicit $exec |
| S_BRANCH %bb.1 |
| |
| bb.1: |
| successors: %bb.1, %bb.2 |
| |
| BUFFER_STORE_DWORD_OFFEN_exact $vgpr5, $vgpr6, $sgpr0_sgpr1_sgpr2_sgpr3, 0, 0, 0, 0, implicit $exec |
| $vgpr1 = V_ADD_U32_e32 $vgpr2, $vgpr2, implicit $exec |
| S_CMP_LG_U32 killed $sgpr3, $sgpr4, implicit-def $scc |
| S_CBRANCH_SCC1 %bb.1, implicit killed $scc |
| S_BRANCH %bb.2 |
| |
| bb.2: |
| $vgpr1 = V_ADD_U32_e32 $vgpr0, $vgpr0, implicit $exec |
| S_ENDPGM 0 |
| |
| ... |
| --- |
| |
| # The loop loads a value that is not used in the loop, and uses a value loaded |
| # outside of the loop. |
| # We expect the waitcnt to be hoisted of the loop to wait a single time before |
| # the loop is executed and avoid waiting for the load to complete on each |
| # iteration. |
| |
| # GFX9-LABEL: waitcnt_vm_loop2 |
| # GFX9-LABEL: bb.0: |
| # GFX9: S_WAITCNT 39 |
| # GFX9-LABEL: bb.1: |
| # GFX9-NOT: S_WAITCNT 39 |
| # GFX9-LABEL: bb.2: |
| |
| # GFX10-LABEL: waitcnt_vm_loop2 |
| # GFX10-LABEL: bb.0: |
| # GFX10: S_WAITCNT 16 |
| # GFX10-LABEL: bb.1: |
| # GFX10-NOT: S_WAITCNT 16 |
| # GFX10-LABEL: bb.2: |
| name: waitcnt_vm_loop2 |
| body: | |
| bb.0: |
| successors: %bb.1 |
| |
| $vgpr0 = BUFFER_LOAD_FORMAT_X_IDXEN killed $vgpr0, $sgpr0_sgpr1_sgpr2_sgpr3, 0, 0, 0, 0, implicit $exec |
| S_BRANCH %bb.1 |
| |
| bb.1: |
| successors: %bb.1, %bb.2 |
| |
| $vgpr3 = V_ADD_U32_e32 $vgpr0, $vgpr2, implicit $exec |
| $vgpr1 = BUFFER_LOAD_FORMAT_X_IDXEN killed $vgpr4, $sgpr0_sgpr1_sgpr2_sgpr3, 0, 0, 0, 0, implicit $exec |
| S_CMP_LG_U32 killed $sgpr3, $sgpr4, implicit-def $scc |
| S_CBRANCH_SCC1 %bb.1, implicit killed $scc |
| S_BRANCH %bb.2 |
| |
| bb.2: |
| S_ENDPGM 0 |
| |
| ... |
| --- |
| |
| # Same as before with an additional store in the loop. We still expect the |
| # waitcnt instructions to be hoisted. |
| |
| # GFX9-LABEL: waitcnt_vm_loop2_store |
| # GFX9-LABEL: bb.0: |
| # GFX9: S_WAITCNT 39 |
| # GFX9-LABEL: bb.1: |
| # GFX9-NOT: S_WAITCNT 39 |
| # GFX9-LABEL: bb.2: |
| |
| # GFX10-LABEL: waitcnt_vm_loop2_store |
| # GFX10-LABEL: bb.0: |
| # GFX10: S_WAITCNT 16 |
| # GFX10-LABEL: bb.1: |
| # GFX10-NOT: S_WAITCNT 16 |
| # GFX10-LABEL: bb.2: |
| name: waitcnt_vm_loop2_store |
| body: | |
| bb.0: |
| successors: %bb.1 |
| |
| $vgpr0 = BUFFER_LOAD_FORMAT_X_IDXEN killed $vgpr0, $sgpr0_sgpr1_sgpr2_sgpr3, 0, 0, 0, 0, implicit $exec |
| S_BRANCH %bb.1 |
| |
| bb.1: |
| successors: %bb.1, %bb.2 |
| |
| $vgpr3 = V_ADD_U32_e32 $vgpr0, $vgpr2, implicit $exec |
| $vgpr1 = BUFFER_LOAD_FORMAT_X_IDXEN killed $vgpr4, $sgpr0_sgpr1_sgpr2_sgpr3, 0, 0, 0, 0, implicit $exec |
| BUFFER_STORE_DWORD_OFFEN_exact $vgpr5, $vgpr6, $sgpr0_sgpr1_sgpr2_sgpr3, 0, 0, 0, 0, implicit $exec |
| S_CMP_LG_U32 killed $sgpr3, $sgpr4, implicit-def $scc |
| S_CBRANCH_SCC1 %bb.1, implicit killed $scc |
| S_BRANCH %bb.2 |
| |
| bb.2: |
| S_ENDPGM 0 |
| |
| ... |
| --- |
| |
| # Same as loop2 but the value loaded inside the loop is also used in the loop. |
| # We do not expect the waitcnt to be hoisted out of the loop. |
| |
| # GFX9-LABEL: waitcnt_vm_loop2_use_in_loop |
| # GFX9-LABEL: bb.0: |
| # GFX9-NOT: S_WAITCNT 39 |
| # GFX9-LABEL: bb.1: |
| # GFX9: S_WAITCNT 39 |
| # GFX9-LABEL: bb.2: |
| |
| # GFX10-LABEL: waitcnt_vm_loop2_use_in_loop |
| # GFX10-LABEL: bb.0: |
| # GFX10-NOT: S_WAITCNT 16 |
| # GFX10-LABEL: bb.1: |
| # GFX10: S_WAITCNT 16 |
| # GFX10-LABEL: bb.2: |
| name: waitcnt_vm_loop2_use_in_loop |
| body: | |
| bb.0: |
| successors: %bb.1 |
| |
| $vgpr0 = BUFFER_LOAD_FORMAT_X_IDXEN killed $vgpr0, $sgpr0_sgpr1_sgpr2_sgpr3, 0, 0, 0, 0, implicit $exec |
| S_BRANCH %bb.1 |
| |
| bb.1: |
| successors: %bb.1, %bb.2 |
| |
| $vgpr3 = V_ADD_U32_e32 $vgpr0, $vgpr2, implicit $exec |
| $vgpr1 = BUFFER_LOAD_FORMAT_X_IDXEN killed $vgpr4, $sgpr0_sgpr1_sgpr2_sgpr3, 0, 0, 0, 0, implicit $exec |
| $vgpr4 = V_ADD_U32_e32 $vgpr5, $vgpr1, implicit $exec |
| S_CMP_LG_U32 killed $sgpr3, $sgpr4, implicit-def $scc |
| S_CBRANCH_SCC1 %bb.1, implicit killed $scc |
| S_BRANCH %bb.2 |
| |
| bb.2: |
| S_ENDPGM 0 |
| |
| ... |
| --- |
| |
| # The loop contains a use of a value loaded outside of the loop, but we already |
| # waited for that load to complete. The loop also loads a value that is not used |
| # in the loop. We do not expect any waitcnt in the loop. |
| |
| # GFX9-LABEL: waitcnt_vm_loop2_nowait |
| # GFX9-LABEL: bb.0: |
| # GFX9: S_WAITCNT 39 |
| # GFX9-LABEL: bb.1: |
| # GFX9-NOT: S_WAITCNT 39 |
| # GFX9-LABEL: bb.2: |
| # GFX9-NOT: S_WAITCNT 39 |
| # GFX9-LABEL: bb.3: |
| |
| # GFX10-LABEL: waitcnt_vm_loop2_nowait |
| # GFX10-LABEL: bb.0: |
| # GFX10: S_WAITCNT 16 |
| # GFX10-LABEL: bb.1: |
| # GFX10-NOT: S_WAITCNT 16 |
| # GFX10-LABEL: bb.2: |
| # GFX10-NOT: S_WAITCNT 16 |
| # GFX10-LABEL: bb.3: |
| name: waitcnt_vm_loop2_nowait |
| body: | |
| bb.0: |
| successors: %bb.1 |
| |
| $vgpr0 = BUFFER_LOAD_FORMAT_X_IDXEN killed $vgpr0, $sgpr0_sgpr1_sgpr2_sgpr3, 0, 0, 0, 0, implicit $exec |
| $vgpr3 = V_ADD_U32_e32 $vgpr0, $vgpr2, implicit $exec |
| S_BRANCH %bb.1 |
| |
| bb.1: |
| successors: %bb.2 |
| |
| $vgpr3 = V_ADD_U32_e32 $vgpr4, $vgpr5, implicit $exec |
| $vgpr3 = V_ADD_U32_e32 $vgpr4, $vgpr5, implicit $exec |
| $vgpr3 = V_ADD_U32_e32 $vgpr4, $vgpr5, implicit $exec |
| |
| S_BRANCH %bb.2 |
| |
| bb.2: |
| successors: %bb.2, %bb.3 |
| |
| $vgpr3 = V_ADD_U32_e32 $vgpr0, $vgpr2, implicit $exec |
| $vgpr1 = BUFFER_LOAD_FORMAT_X_IDXEN killed $vgpr4, $sgpr0_sgpr1_sgpr2_sgpr3, 0, 0, 0, 0, implicit $exec |
| S_CMP_LG_U32 killed $sgpr3, $sgpr4, implicit-def $scc |
| S_CBRANCH_SCC1 %bb.2, implicit killed $scc |
| S_BRANCH %bb.3 |
| |
| bb.3: |
| S_ENDPGM 0 |
| |
| ... |
| --- |
| |
| # Similar test case but for register intervals. |
| |
| # GFX9-LABEL: waitcnt_vm_loop2_reginterval |
| # GFX9-LABEL: bb.0: |
| # GFX9: S_WAITCNT 39 |
| # GFX9-LABEL: bb.1: |
| # GFX9-NOT: S_WAITCNT 39 |
| # GFX9-LABEL: bb.2: |
| |
| # GFX10-LABEL: waitcnt_vm_loop2_reginterval |
| # GFX10-LABEL: bb.0: |
| # GFX10: S_WAITCNT 16 |
| # GFX10-LABEL: bb.1: |
| # GFX10-NOT: S_WAITCNT 16 |
| # GFX10-LABEL: bb.2: |
| name: waitcnt_vm_loop2_reginterval |
| body: | |
| bb.0: |
| successors: %bb.1 |
| |
| $vgpr0_vgpr1_vgpr2_vgpr3 = GLOBAL_LOAD_DWORDX4 $vgpr10_vgpr11, 0, 0, implicit $exec |
| |
| S_BRANCH %bb.1 |
| |
| bb.1: |
| successors: %bb.1, %bb.2 |
| |
| $vgpr10 = COPY $vgpr0 |
| |
| $vgpr4_vgpr5_vgpr6_vgpr7 = IMAGE_SAMPLE_V4_V2 $vgpr20_vgpr21, $sgpr4_sgpr5_sgpr6_sgpr7_sgpr8_sgpr9_sgpr10_sgpr11, $sgpr0_sgpr1_sgpr2_sgpr3, 15, 0, 0, 0, 0, 0, 0, 0, implicit $exec :: (dereferenceable load (s128), align 4, addrspace 4) |
| S_CMP_LG_U32 killed $sgpr3, $sgpr4, implicit-def $scc |
| S_CBRANCH_SCC1 %bb.1, implicit killed $scc |
| S_BRANCH %bb.2 |
| |
| bb.2: |
| S_ENDPGM 0 |
| |
| ... |
| --- |
| |
| # Similar test case but for register intervals. |
| |
| # GFX9-LABEL: waitcnt_vm_loop2_reginterval2 |
| # GFX9-LABEL: bb.0: |
| # GFX9-NOT: S_WAITCNT 39 |
| # GFX9-LABEL: bb.1: |
| # GFX9: S_WAITCNT 39 |
| # GFX9-LABEL: bb.2: |
| |
| # GFX10-LABEL: waitcnt_vm_loop2_reginterval2 |
| # GFX10-LABEL: bb.0: |
| # GFX10-NOT: S_WAITCNT 16 |
| # GFX10-LABEL: bb.1: |
| # GFX10: S_WAITCNT 16 |
| # GFX10-LABEL: bb.2: |
| name: waitcnt_vm_loop2_reginterval2 |
| body: | |
| bb.0: |
| successors: %bb.1 |
| |
| $vgpr0_vgpr1_vgpr2_vgpr3 = GLOBAL_LOAD_DWORDX4 $vgpr10_vgpr11, 0, 0, implicit $exec |
| |
| S_BRANCH %bb.1 |
| |
| bb.1: |
| successors: %bb.1, %bb.2 |
| |
| $vgpr10 = COPY $vgpr0 |
| |
| $vgpr4_vgpr5_vgpr6_vgpr7 = IMAGE_SAMPLE_V4_V2 $vgpr20_vgpr21, $sgpr4_sgpr5_sgpr6_sgpr7_sgpr8_sgpr9_sgpr10_sgpr11, $sgpr0_sgpr1_sgpr2_sgpr3, 15, 0, 0, 0, 0, 0, 0, 0, implicit $exec :: (dereferenceable load (s128), align 4, addrspace 4) |
| $vgpr11 = COPY $vgpr7 |
| S_CMP_LG_U32 killed $sgpr3, $sgpr4, implicit-def $scc |
| S_CBRANCH_SCC1 %bb.1, implicit killed $scc |
| S_BRANCH %bb.2 |
| |
| bb.2: |
| S_ENDPGM 0 |
| |
| ... |
| --- |
| |
| # The loop loads a value that is not used in the loop, but uses a value loaded |
| # outside of it. We expect the s_waitcnt instruction to be hoisted. |
| # A s_waitcnt vmcnt(0) is generated to flush in the preheader, but for this |
| # specific test case, it would be better to use vmcnt(1) instead. This is |
| # currently not implemented. |
| |
| # GFX9-LABEL: waitcnt_vm_zero |
| # GFX9-LABEL: bb.0: |
| # GFX9: S_WAITCNT 3952 |
| # GFX9-LABEL: bb.1: |
| # GFX9-NOT: S_WAITCNT 39 |
| # GFX9-LABEL: bb.2: |
| |
| # GFX10-LABEL: waitcnt_vm_zero |
| # GFX10-LABEL: bb.0: |
| # GFX10: S_WAITCNT 16240 |
| # GFX10-LABEL: bb.1: |
| # GFX10-NOT: S_WAITCNT 16240 |
| # GFX10-LABEL: bb.2: |
| |
| name: waitcnt_vm_zero |
| body: | |
| bb.0: |
| successors: %bb.1 |
| |
| $vgpr0 = BUFFER_LOAD_FORMAT_X_IDXEN killed $vgpr0, $sgpr0_sgpr1_sgpr2_sgpr3, 0, 0, 0, 0, implicit $exec |
| $vgpr1 = BUFFER_LOAD_FORMAT_X_IDXEN killed $vgpr1, $sgpr4_sgpr5_sgpr6_sgpr7, 0, 0, 0, 0, implicit $exec |
| S_BRANCH %bb.1 |
| |
| bb.1: |
| successors: %bb.1, %bb.2 |
| |
| $vgpr1 = V_ADD_U32_e32 $vgpr0, $vgpr3, implicit $exec |
| $vgpr2 = BUFFER_LOAD_FORMAT_X_IDXEN killed $vgpr3, $sgpr4_sgpr5_sgpr6_sgpr7, 0, 0, 0, 0, implicit $exec |
| S_CMP_LG_U32 killed $sgpr3, $sgpr4, implicit-def $scc |
| S_CBRANCH_SCC1 %bb.1, implicit killed $scc |
| S_BRANCH %bb.2 |
| |
| bb.2: |
| S_ENDPGM 0 |
| |
| ... |
| --- |
| |
| # This test case checks that we flush the vmcnt counter only if necessary |
| # (i.e. if a waitcnt is needed for the vgpr use we find in the loop) |
| |
| # GFX10-LABEL: waitcnt_vm_necessary |
| # GFX10-LABEL: bb.0: |
| # GFX10: S_WAITCNT 16240 |
| # GFX10: $vgpr4 |
| # GFX10-NOT: S_WAITCNT |
| # GFX10-LABEL: bb.1: |
| # GFX10-NOT: S_WAITCNT |
| |
| # GFX9-LABEL: waitcnt_vm_necessary |
| # GFX9-LABEL: bb.0: |
| # GFX9: S_WAITCNT 3952 |
| # GFX9: $vgpr4 |
| # GFX9-NOT: S_WAITCNT |
| # GFX9-LABEL: bb.1: |
| # GFX9-NOT: S_WAITCNT |
| |
| name: waitcnt_vm_necessary |
| body: | |
| bb.0: |
| successors: %bb.1(0x80000000) |
| |
| $vgpr0_vgpr1_vgpr2_vgpr3 = GLOBAL_LOAD_DWORDX4 killed $vgpr0_vgpr1, 0, 0, implicit $exec |
| $vgpr4 = BUFFER_LOAD_DWORD_OFFEN $vgpr0, $sgpr0_sgpr1_sgpr2_sgpr3, 0, 0, 0, 0, implicit $exec |
| |
| bb.1: |
| successors: %bb.1(0x40000000) |
| |
| $vgpr5 = BUFFER_LOAD_DWORD_OFFEN $vgpr0, $sgpr4_sgpr5_sgpr6_sgpr7, 0, 0, 0, 0, implicit $exec |
| S_CBRANCH_SCC1 %bb.1, implicit killed $scc |
| S_ENDPGM 0 |
| |
| ... |
| --- |
| |
| # The loop contains a global store, and uses a (global) loaded value outside of the loop. |
| |
| # GFX9-LABEL: waitcnt_vm_loop_global_mem |
| # GFX9-LABEL: bb.0: |
| # GFX9: S_WAITCNT 39 |
| # GFX9-LABEL: bb.1: |
| # GFX9-NOT: S_WAITCNT 39 |
| # GFX9-LABEL: bb.2: |
| |
| # GFX10-LABEL: waitcnt_vm_loop_global_mem |
| # GFX10-LABEL: bb.0: |
| # GFX10-NOT: S_WAITCNT 16 |
| # GFX10-LABEL: bb.1: |
| # GFX10: S_WAITCNT 16 |
| # GFX10-LABEL: bb.2: |
| |
| name: waitcnt_vm_loop_global_mem |
| body: | |
| bb.0: |
| successors: %bb.1 |
| $vgpr0 = GLOBAL_LOAD_DWORD $vgpr1_vgpr2, 0, 0, implicit $exec |
| S_BRANCH %bb.1 |
| |
| bb.1: |
| successors: %bb.1, %bb.2 |
| |
| $vgpr3 = V_ADD_U32_e32 $vgpr0, $vgpr0, implicit $exec |
| GLOBAL_STORE_DWORD $vgpr4_vgpr5, $vgpr6, 0, 0, implicit $exec |
| S_CMP_LG_U32 killed $sgpr3, $sgpr4, implicit-def $scc |
| S_CBRANCH_SCC1 %bb.1, implicit killed $scc |
| |
| bb.2: |
| successors: %bb.3 |
| S_BRANCH %bb.3 |
| |
| bb.3: |
| S_ENDPGM 0 |
| |
| ... |
| --- |
| |
| # Same as above case, but use scratch memory instructions instead |
| |
| # GFX9-LABEL: waitcnt_vm_loop_scratch_mem |
| # GFX9-LABEL: bb.0: |
| # GFX9: S_WAITCNT 39 |
| # GFX9-LABEL: bb.1: |
| # GFX9-NOT: S_WAITCNT 39 |
| # GFX9-LABEL: bb.2: |
| |
| # GFX10-LABEL: waitcnt_vm_loop_scratch_mem |
| # GFX10-LABEL: bb.0: |
| # GFX10-NOT: S_WAITCNT 16 |
| # GFX10-LABEL: bb.1: |
| # GFX10: S_WAITCNT 16 |
| # GFX10-LABEL: bb.2: |
| |
| name: waitcnt_vm_loop_scratch_mem |
| body: | |
| bb.0: |
| successors: %bb.1 |
| $vgpr0 = SCRATCH_LOAD_DWORD $vgpr1, 0, 0, implicit $exec, implicit $flat_scr |
| S_BRANCH %bb.1 |
| |
| bb.1: |
| successors: %bb.1, %bb.2 |
| |
| $vgpr3 = V_ADD_U32_e32 $vgpr0, $vgpr0, implicit $exec |
| SCRATCH_STORE_DWORD $vgpr4, $vgpr6, 0, 0, implicit $exec, implicit $flat_scr |
| S_CMP_LG_U32 killed $sgpr3, $sgpr4, implicit-def $scc |
| S_CBRANCH_SCC1 %bb.1, implicit killed $scc |
| |
| bb.2: |
| successors: %bb.3 |
| S_BRANCH %bb.3 |
| |
| bb.3: |
| S_ENDPGM 0 |
| |
| ... |
| --- |
| |
| # Same as above case, but use flat memory instructions instead |
| |
| # GFX9-LABEL: waitcnt_vm_loop_flat_mem |
| # GFX9-LABEL: bb.0: |
| # GFX9: S_WAITCNT 39 |
| # GFX9-LABEL: bb.1: |
| # GFX9-NOT: S_WAITCNT 39 |
| # GFX9-LABEL: bb.2: |
| |
| # GFX10-LABEL: waitcnt_vm_loop_flat_mem |
| # GFX10-LABEL: bb.0: |
| # GFX10-NOT: S_WAITCNT 11 |
| # GFX10-LABEL: bb.1: |
| # GFX10: S_WAITCNT 11 |
| # GFX10-LABEL: bb.2: |
| name: waitcnt_vm_loop_flat_mem |
| body: | |
| bb.0: |
| successors: %bb.1 |
| $vgpr0 = FLAT_LOAD_DWORD $vgpr1_vgpr2, 0, 0, implicit $exec, implicit $flat_scr |
| S_BRANCH %bb.1 |
| |
| bb.1: |
| successors: %bb.1, %bb.2 |
| |
| $vgpr3 = V_ADD_U32_e32 $vgpr0, $vgpr0, implicit $exec |
| FLAT_STORE_DWORD $vgpr4_vgpr5, $vgpr6, 0, 0, implicit $exec, implicit $flat_scr |
| S_CMP_LG_U32 killed $sgpr3, $sgpr4, implicit-def $scc |
| S_CBRANCH_SCC1 %bb.1, implicit killed $scc |
| |
| bb.2: |
| successors: %bb.3 |
| S_BRANCH %bb.3 |
| |
| bb.3: |
| S_ENDPGM 0 |
| |
| ... |
| --- |
| |
| # The loop contains a store, a load, and uses values loaded both inside and |
| # outside the loop. |
| # We do not expect the waitcnt to be hoisted out of the loop. |
| |
| # GFX9-LABEL: waitcnt_vm_loop_flat_load |
| # GFX9-LABEL: bb.0: |
| # GFX9-NOT: S_WAITCNT 39 |
| # GFX9-LABEL: bb.1: |
| # GFX9: S_WAITCNT 39 |
| # GFX9-LABEL: bb.2: |
| |
| # GFX10-LABEL: waitcnt_vm_loop_flat_load |
| # GFX10-LABEL: bb.0: |
| # GFX10-NOT: S_WAITCNT 16 |
| # GFX10-LABEL: bb.1: |
| # GFX10: S_WAITCNT 16 |
| # GFX10-LABEL: bb.2: |
| name: waitcnt_vm_loop_flat_load |
| body: | |
| bb.0: |
| successors: %bb.1 |
| |
| $vgpr0 = GLOBAL_LOAD_DWORD $vgpr1_vgpr2, 0, 0, implicit $exec |
| S_BRANCH %bb.1 |
| |
| bb.1: |
| successors: %bb.1, %bb.2 |
| |
| GLOBAL_STORE_DWORD $vgpr4_vgpr5, $vgpr6, 0, 0, implicit $exec |
| $vgpr7 = GLOBAL_LOAD_DWORD $vgpr1_vgpr2, 0, 0, implicit $exec |
| $vgpr1 = V_ADD_U32_e32 $vgpr0, $vgpr7, implicit $exec |
| S_CMP_LG_U32 killed $sgpr3, $sgpr4, implicit-def $scc |
| S_CBRANCH_SCC1 %bb.1, implicit killed $scc |
| S_BRANCH %bb.2 |
| |
| bb.2: |
| S_ENDPGM 0 |
| |
| ... |
