[AMDGPU] Add VOPD combine dependency tests. NFC. (llvm#104841)

ROCm · Aug 19, 2024 · 5fcd059 · 5fcd059
1 parent 31cc4cc
commit 5fcd059
Showing 1 changed file with 49 additions and 0 deletions.
diff --git a/llvm/test/CodeGen/AMDGPU/vopd-combine.mir b/llvm/test/CodeGen/AMDGPU/vopd-combine.mir
@@ -23,6 +23,8 @@
  define void @vopd_mov_fixup_fail() { ret void }
  define void @vopd_no_combine_dependent_subreg() { ret void }
  define void @vopd_mov_mov_same_src_bank() { ret void }
+ define void @vopd_combine_opy_overwrites_opx() { ret void }
+ define void @vopd_no_combine_opx_overwrites_opy() { ret void }
 ...
 
 ---
@@ -737,3 +739,50 @@ body: |
  $vgpr2 = V_MOV_B32_e32 $vgpr1, implicit $exec
  $vgpr3 = V_MOV_B32_e32 $vgpr5, implicit $exec
 ...
+
+---
+# There is no race between mov and add, they are executed at the same time
+name: vopd_combine_opy_overwrites_opx
+tracksRegLiveness: true
+body: |
+ bb.0:
+ ; SCHED-LABEL: name: vopd_combine_opy_overwrites_opx
+ ; SCHED: $vgpr1 = IMPLICIT_DEF
+ ; SCHED-NEXT: $vgpr3 = IMPLICIT_DEF
+ ; SCHED-NEXT: $vgpr0 = V_MOV_B32_e32 killed $vgpr1, implicit $exec
+ ; SCHED-NEXT: $vgpr1 = V_ADD_F32_e32 killed $vgpr3, $vgpr3, implicit $mode, implicit $exec
+ ;
+ ; PAIR-GFX11-LABEL: name: vopd_combine_opy_overwrites_opx
+ ; PAIR-GFX11: $vgpr1 = IMPLICIT_DEF
+ ; PAIR-GFX11-NEXT: $vgpr3 = IMPLICIT_DEF
+ ; PAIR-GFX11-NEXT: $vgpr0, $vgpr1 = V_DUAL_MOV_B32_e32_X_ADD_F32_e32_gfx11 killed $vgpr1, killed $vgpr3, $vgpr3, implicit $exec, implicit $mode, implicit $exec, implicit $mode, implicit $exec
+ ;
+ ; PAIR-GFX12-LABEL: name: vopd_combine_opy_overwrites_opx
+ ; PAIR-GFX12: $vgpr1 = IMPLICIT_DEF
+ ; PAIR-GFX12-NEXT: $vgpr3 = IMPLICIT_DEF
+ ; PAIR-GFX12-NEXT: $vgpr0, $vgpr1 = V_DUAL_MOV_B32_e32_X_ADD_F32_e32_gfx12 killed $vgpr1, killed $vgpr3, $vgpr3, implicit $exec, implicit $mode, implicit $exec, implicit $mode, implicit $exec
+ $vgpr1 = IMPLICIT_DEF
+ $vgpr3 = IMPLICIT_DEF
+ $vgpr0 = V_MOV_B32_e32 $vgpr1, implicit $exec
+ $vgpr1 = V_ADD_F32_e32 $vgpr3, $vgpr3, implicit $mode, implicit $exec
+...
+
+---
+# OPY cannot cosume value produced by OPX
+name: vopd_no_combine_opx_overwrites_opy
+tracksRegLiveness: true
+body: |
+ bb.0:
+ ; SCHED-LABEL: name: vopd_no_combine_opx_overwrites_opy
+ ; SCHED: $vgpr1 = IMPLICIT_DEF
+ ; SCHED-NEXT: $vgpr0 = V_MOV_B32_e32 $vgpr1, implicit $exec
+ ; SCHED-NEXT: $vgpr3 = V_ADD_F32_e32 killed $vgpr0, killed $vgpr1, implicit $mode, implicit $exec
+ ;
+ ; PAIR-LABEL: name: vopd_no_combine_opx_overwrites_opy
+ ; PAIR: $vgpr1 = IMPLICIT_DEF
+ ; PAIR-NEXT: $vgpr0 = V_MOV_B32_e32 $vgpr1, implicit $exec
+ ; PAIR-NEXT: $vgpr3 = V_ADD_F32_e32 killed $vgpr0, killed $vgpr1, implicit $mode, implicit $exec
+ $vgpr1 = IMPLICIT_DEF
+ $vgpr0 = V_MOV_B32_e32 $vgpr1, implicit $exec
+ $vgpr3 = V_ADD_F32_e32 $vgpr0, $vgpr1, implicit $mode, implicit $exec
+...