diff options
Diffstat (limited to 'llvm/test/CodeGen/AMDGPU/fold-over-exec.mir')
| -rw-r--r-- | llvm/test/CodeGen/AMDGPU/fold-over-exec.mir | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/AMDGPU/fold-over-exec.mir b/llvm/test/CodeGen/AMDGPU/fold-over-exec.mir new file mode 100644 index 00000000000..9cc6c257b02 --- /dev/null +++ b/llvm/test/CodeGen/AMDGPU/fold-over-exec.mir @@ -0,0 +1,38 @@ +# RUN: llc -mtriple=amdgcn -verify-machineinstrs -run-pass si-fold-operands %s -o - | FileCheck %s + +# CHECK-LABEL: bb.2: +# CHECK: %I_out +# CHECK-NOT: %I +--- +name: main +tracksRegLiveness: true +body: | + bb.0: + successors: %bb.1(0x80000000) + liveins: $sgpr0, $vgpr0, $vgpr1 + %0:sreg_32 = S_MOV_B32 0 + %1:sreg_64 = S_MOV_B64 0 + %tid_x:vgpr_32 = COPY $vgpr0 + %tid_y:vgpr_32 = COPY $vgpr1 + %arg:sgpr_32 = COPY $sgpr0 + + bb.1: ; loop + successors: %bb.2(0x40000000), %bb.1(0x40000000) + %I:sreg_32 = PHI %0, %bb.0, %I_inc, %bb.1 + %break_inc:sreg_64 = PHI %1, %bb.0, %break, %bb.1 + %cond:sreg_64 = V_CMP_LE_U32_e64 %arg, %tid_x, implicit $exec + %break:sreg_64 = SI_IF_BREAK %cond, %break_inc, implicit-def $scc + %I_out:vgpr_32 = COPY %I, implicit $exec + %I_inc:sreg_32 = S_ADD_I32 %I, 1, implicit-def $scc + SI_LOOP %break, %bb.1, implicit-def dead $exec, implicit $exec, implicit-def $scc + S_BRANCH %bb.2 + + bb.2: ; end loop + successors: %bb.3(0x40000000) + %2:sreg_64_xexec = V_CMP_EQ_U32_e64 %I_out, %tid_y, implicit $exec + %3:vgpr_32 = V_CNDMASK_B32_e64 0, 0, 0, 1, killed %2, implicit $exec + S_BRANCH %bb.3 + + bb.3: ; exit + S_ENDPGM 0 +... |
