// RUN: mlir-opt -convert-scf-to-spirv %s -o - | FileCheck %s module attributes { spirv.target_env = #spirv.target_env< #spirv.vce, #spirv.resource_limits<>> } { // CHECK-LABEL: @kernel_simple_selection func.func @kernel_simple_selection(%arg2 : memref<10xf32, #spirv.storage_class>, %arg3 : i1) { %value = arith.constant 0.0 : f32 %i = arith.constant 0 : index // CHECK: spirv.mlir.selection { // CHECK-NEXT: spirv.BranchConditional {{%.*}}, [[TRUE:\^.*]], [[MERGE:\^.*]] // CHECK-NEXT: [[TRUE]]: // CHECK: spirv.Branch [[MERGE]] // CHECK-NEXT: [[MERGE]]: // CHECK-NEXT: spirv.mlir.merge // CHECK-NEXT: } // CHECK-NEXT: spirv.Return scf.if %arg3 { memref.store %value, %arg2[%i] : memref<10xf32, #spirv.storage_class> } return } // CHECK-LABEL: @kernel_nested_selection func.func @kernel_nested_selection(%arg3 : memref<10xf32, #spirv.storage_class>, %arg4 : memref<10xf32, #spirv.storage_class>, %arg5 : i1, %arg6 : i1) { %i = arith.constant 0 : index %j = arith.constant 9 : index // CHECK: spirv.mlir.selection { // CHECK-NEXT: spirv.BranchConditional {{%.*}}, [[TRUE_TOP:\^.*]], [[FALSE_TOP:\^.*]] // CHECK-NEXT: [[TRUE_TOP]]: // CHECK-NEXT: spirv.mlir.selection { // CHECK-NEXT: spirv.BranchConditional {{%.*}}, [[TRUE_NESTED_TRUE_PATH:\^.*]], [[FALSE_NESTED_TRUE_PATH:\^.*]] // CHECK-NEXT: [[TRUE_NESTED_TRUE_PATH]]: // CHECK: spirv.Branch [[MERGE_NESTED_TRUE_PATH:\^.*]] // CHECK-NEXT: [[FALSE_NESTED_TRUE_PATH]]: // CHECK: spirv.Branch [[MERGE_NESTED_TRUE_PATH]] // CHECK-NEXT: [[MERGE_NESTED_TRUE_PATH]]: // CHECK-NEXT: spirv.mlir.merge // CHECK-NEXT: } // CHECK-NEXT: spirv.Branch [[MERGE_TOP:\^.*]] // CHECK-NEXT: [[FALSE_TOP]]: // CHECK-NEXT: spirv.mlir.selection { // CHECK-NEXT: spirv.BranchConditional {{%.*}}, [[TRUE_NESTED_FALSE_PATH:\^.*]], [[FALSE_NESTED_FALSE_PATH:\^.*]] // CHECK-NEXT: [[TRUE_NESTED_FALSE_PATH]]: // CHECK: spirv.Branch [[MERGE_NESTED_FALSE_PATH:\^.*]] // CHECK-NEXT: [[FALSE_NESTED_FALSE_PATH]]: // CHECK: spirv.Branch [[MERGE_NESTED_FALSE_PATH]] // CHECK: [[MERGE_NESTED_FALSE_PATH]]: // CHECK-NEXT: spirv.mlir.merge // CHECK-NEXT: } // CHECK-NEXT: spirv.Branch [[MERGE_TOP]] // CHECK-NEXT: [[MERGE_TOP]]: // CHECK-NEXT: spirv.mlir.merge // CHECK-NEXT: } // CHECK-NEXT: spirv.Return scf.if %arg5 { scf.if %arg6 { %value = memref.load %arg3[%i] : memref<10xf32, #spirv.storage_class> memref.store %value, %arg4[%i] : memref<10xf32, #spirv.storage_class> } else { %value = memref.load %arg4[%i] : memref<10xf32, #spirv.storage_class> memref.store %value, %arg3[%i] : memref<10xf32, #spirv.storage_class> } } else { scf.if %arg6 { %value = memref.load %arg3[%j] : memref<10xf32, #spirv.storage_class> memref.store %value, %arg4[%j] : memref<10xf32, #spirv.storage_class> } else { %value = memref.load %arg4[%j] : memref<10xf32, #spirv.storage_class> memref.store %value, %arg3[%j] : memref<10xf32, #spirv.storage_class> } } return } // CHECK-LABEL: @simple_if_yield func.func @simple_if_yield(%arg2 : memref<10xf32, #spirv.storage_class>, %arg3 : i1) { // CHECK: %[[VAR1:.*]] = spirv.Variable : !spirv.ptr // CHECK: %[[VAR2:.*]] = spirv.Variable : !spirv.ptr // CHECK: spirv.mlir.selection { // CHECK-NEXT: spirv.BranchConditional {{%.*}}, [[TRUE:\^.*]], [[FALSE:\^.*]] // CHECK-NEXT: [[TRUE]]: // CHECK: %[[RET1TRUE:.*]] = spirv.Constant 0.000000e+00 : f32 // CHECK: %[[RET2TRUE:.*]] = spirv.Constant 1.000000e+00 : f32 // CHECK-DAG: spirv.Store "Function" %[[VAR1]], %[[RET1TRUE]] : f32 // CHECK-DAG: spirv.Store "Function" %[[VAR2]], %[[RET2TRUE]] : f32 // CHECK: spirv.Branch ^[[MERGE:.*]] // CHECK-NEXT: [[FALSE]]: // CHECK: %[[RET2FALSE:.*]] = spirv.Constant 2.000000e+00 : f32 // CHECK: %[[RET1FALSE:.*]] = spirv.Constant 3.000000e+00 : f32 // CHECK-DAG: spirv.Store "Function" %[[VAR1]], %[[RET1FALSE]] : f32 // CHECK-DAG: spirv.Store "Function" %[[VAR2]], %[[RET2FALSE]] : f32 // CHECK: spirv.Branch ^[[MERGE]] // CHECK-NEXT: ^[[MERGE]]: // CHECK: spirv.mlir.merge // CHECK-NEXT: } // CHECK-DAG: %[[OUT1:.*]] = spirv.Load "Function" %[[VAR1]] : f32 // CHECK-DAG: %[[OUT2:.*]] = spirv.Load "Function" %[[VAR2]] : f32 // CHECK: spirv.Store "StorageBuffer" {{%.*}}, %[[OUT1]] : f32 // CHECK: spirv.Store "StorageBuffer" {{%.*}}, %[[OUT2]] : f32 // CHECK: spirv.Return %0:2 = scf.if %arg3 -> (f32, f32) { %c0 = arith.constant 0.0 : f32 %c1 = arith.constant 1.0 : f32 scf.yield %c0, %c1 : f32, f32 } else { %c0 = arith.constant 2.0 : f32 %c1 = arith.constant 3.0 : f32 scf.yield %c1, %c0 : f32, f32 } %i = arith.constant 0 : index %j = arith.constant 1 : index memref.store %0#0, %arg2[%i] : memref<10xf32, #spirv.storage_class> memref.store %0#1, %arg2[%j] : memref<10xf32, #spirv.storage_class> return } // TODO: The transformation should only be legal if VariablePointer capability // is supported. This test is still useful to make sure we can handle scf op // result with type change. func.func @simple_if_yield_type_change(%arg2 : memref<10xf32, #spirv.storage_class>, %arg3 : memref<10xf32, #spirv.storage_class>, %arg4 : i1) { // CHECK-LABEL: @simple_if_yield_type_change // CHECK: %[[VAR:.*]] = spirv.Variable : !spirv.ptr [0])>, StorageBuffer>, Function> // CHECK: spirv.mlir.selection { // CHECK-NEXT: spirv.BranchConditional {{%.*}}, [[TRUE:\^.*]], [[FALSE:\^.*]] // CHECK-NEXT: [[TRUE]]: // CHECK: spirv.Store "Function" %[[VAR]], {{%.*}} : !spirv.ptr [0])>, StorageBuffer> // CHECK: spirv.Branch ^[[MERGE:.*]] // CHECK-NEXT: [[FALSE]]: // CHECK: spirv.Store "Function" %[[VAR]], {{%.*}} : !spirv.ptr [0])>, StorageBuffer> // CHECK: spirv.Branch ^[[MERGE]] // CHECK-NEXT: ^[[MERGE]]: // CHECK: spirv.mlir.merge // CHECK-NEXT: } // CHECK: %[[OUT:.*]] = spirv.Load "Function" %[[VAR]] : !spirv.ptr [0])>, StorageBuffer> // CHECK: %[[ADD:.*]] = spirv.AccessChain %[[OUT]][{{%.*}}, {{%.*}}] : !spirv.ptr [0])>, StorageBuffer> // CHECK: spirv.Store "StorageBuffer" %[[ADD]], {{%.*}} : f32 // CHECK: spirv.Return %i = arith.constant 0 : index %value = arith.constant 0.0 : f32 %0 = scf.if %arg4 -> (memref<10xf32, #spirv.storage_class>) { scf.yield %arg2 : memref<10xf32, #spirv.storage_class> } else { scf.yield %arg3 : memref<10xf32, #spirv.storage_class> } memref.store %value, %0[%i] : memref<10xf32, #spirv.storage_class> return } // Memrefs without a spirv storage class are not supported. The conversion // should preserve the `scf.if` and not crash. func.func @unsupported_yield_type(%arg0 : memref<8xi32>, %arg1 : memref<8xi32>, %c : i1) { // CHECK-LABEL: @unsupported_yield_type // CHECK-NEXT: scf.if // CHECK: spirv.Return %r = scf.if %c -> (memref<8xi32>) { scf.yield %arg0 : memref<8xi32> } else { scf.yield %arg1 : memref<8xi32> } return } } // end module