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|
// RUN: mlir-opt -convert-scf-to-spirv %s -o - | FileCheck %s
module attributes {
spirv.target_env = #spirv.target_env<
#spirv.vce<v1.0, [Shader], [SPV_KHR_storage_buffer_storage_class]>, #spirv.resource_limits<>>
} {
// CHECK-LABEL: @kernel_simple_selection
func.func @kernel_simple_selection(%arg2 : memref<10xf32, #spirv.storage_class<StorageBuffer>>, %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<StorageBuffer>>
}
return
}
// CHECK-LABEL: @kernel_nested_selection
func.func @kernel_nested_selection(%arg3 : memref<10xf32, #spirv.storage_class<StorageBuffer>>, %arg4 : memref<10xf32, #spirv.storage_class<StorageBuffer>>, %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<StorageBuffer>>
memref.store %value, %arg4[%i] : memref<10xf32, #spirv.storage_class<StorageBuffer>>
} else {
%value = memref.load %arg4[%i] : memref<10xf32, #spirv.storage_class<StorageBuffer>>
memref.store %value, %arg3[%i] : memref<10xf32, #spirv.storage_class<StorageBuffer>>
}
} else {
scf.if %arg6 {
%value = memref.load %arg3[%j] : memref<10xf32, #spirv.storage_class<StorageBuffer>>
memref.store %value, %arg4[%j] : memref<10xf32, #spirv.storage_class<StorageBuffer>>
} else {
%value = memref.load %arg4[%j] : memref<10xf32, #spirv.storage_class<StorageBuffer>>
memref.store %value, %arg3[%j] : memref<10xf32, #spirv.storage_class<StorageBuffer>>
}
}
return
}
// CHECK-LABEL: @simple_if_yield
func.func @simple_if_yield(%arg2 : memref<10xf32, #spirv.storage_class<StorageBuffer>>, %arg3 : i1) {
// CHECK: %[[VAR1:.*]] = spirv.Variable : !spirv.ptr<f32, Function>
// CHECK: %[[VAR2:.*]] = spirv.Variable : !spirv.ptr<f32, Function>
// 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<StorageBuffer>>
memref.store %0#1, %arg2[%j] : memref<10xf32, #spirv.storage_class<StorageBuffer>>
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<StorageBuffer>>, %arg3 : memref<10xf32, #spirv.storage_class<StorageBuffer>>, %arg4 : i1) {
// CHECK-LABEL: @simple_if_yield_type_change
// CHECK: %[[VAR:.*]] = spirv.Variable : !spirv.ptr<!spirv.ptr<!spirv.struct<(!spirv.array<10 x f32, stride=4> [0])>, StorageBuffer>, Function>
// CHECK: spirv.mlir.selection {
// CHECK-NEXT: spirv.BranchConditional {{%.*}}, [[TRUE:\^.*]], [[FALSE:\^.*]]
// CHECK-NEXT: [[TRUE]]:
// CHECK: spirv.Store "Function" %[[VAR]], {{%.*}} : !spirv.ptr<!spirv.struct<(!spirv.array<10 x f32, stride=4> [0])>, StorageBuffer>
// CHECK: spirv.Branch ^[[MERGE:.*]]
// CHECK-NEXT: [[FALSE]]:
// CHECK: spirv.Store "Function" %[[VAR]], {{%.*}} : !spirv.ptr<!spirv.struct<(!spirv.array<10 x f32, stride=4> [0])>, StorageBuffer>
// CHECK: spirv.Branch ^[[MERGE]]
// CHECK-NEXT: ^[[MERGE]]:
// CHECK: spirv.mlir.merge
// CHECK-NEXT: }
// CHECK: %[[OUT:.*]] = spirv.Load "Function" %[[VAR]] : !spirv.ptr<!spirv.struct<(!spirv.array<10 x f32, stride=4> [0])>, StorageBuffer>
// CHECK: %[[ADD:.*]] = spirv.AccessChain %[[OUT]][{{%.*}}, {{%.*}}] : !spirv.ptr<!spirv.struct<(!spirv.array<10 x f32, stride=4> [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<StorageBuffer>>) {
scf.yield %arg2 : memref<10xf32, #spirv.storage_class<StorageBuffer>>
} else {
scf.yield %arg3 : memref<10xf32, #spirv.storage_class<StorageBuffer>>
}
memref.store %value, %0[%i] : memref<10xf32, #spirv.storage_class<StorageBuffer>>
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
|
