src/tint/lang/spirv/writer/access_test.cc - dawn - Git at Google

 // Copyright 2023 The Tint Authors.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
 //
 //     http://www.apache.org/licenses/LICENSE-2.0
 //
 // Unless required by applicable law or agreed to in writing, software
 // distributed under the License is distributed on an "AS IS" BASIS,
 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 // See the License for the specific language governing permissions and
 // limitations under the License.

 #include "src/tint/lang/spirv/writer/test_helper.h"

 namespace tint::spirv::writer {
 namespace {

 using namespace tint::builtin::fluent_types;  // NOLINT
 using namespace tint::number_suffixes;        // NOLINT

 TEST_F(SpirvWriterTest, Access_Array_Value_ConstantIndex) {
     auto* arr_val = b.FunctionParam("arr", ty.array(ty.i32(), 4));
     auto* func = b.Function("foo", ty.void_());
     func->SetParams({arr_val});
     b.With(func->Block(), [&] {
         auto* result = b.Access(ty.i32(), arr_val, 1_u);
         b.Return(func);
         mod.SetName(result, "result");
     });

     ASSERT_TRUE(Generate()) << Error() << output_;
     EXPECT_INST("%result = OpCompositeExtract %int %arr 1");
 }

 TEST_F(SpirvWriterTest, Access_Array_Pointer_ConstantIndex) {
     auto* func = b.Function("foo", ty.void_());
     b.With(func->Block(), [&] {
         auto* arr_var = b.Var("arr", ty.ptr<function, array<i32, 4>>());
         auto* result = b.Access(ty.ptr<function, i32>(), arr_var, 1_u);
         b.Return(func);
         mod.SetName(result, "result");
     });

     ASSERT_TRUE(Generate()) << Error() << output_;
     EXPECT_INST("%result = OpAccessChain %_ptr_Function_int %arr %uint_1");
 }

 TEST_F(SpirvWriterTest, Access_Array_Pointer_DynamicIndex) {
     auto* idx = b.FunctionParam("idx", ty.i32());
     auto* func = b.Function("foo", ty.void_());
     func->SetParams({idx});
     b.With(func->Block(), [&] {
         auto* arr_var = b.Var("arr", ty.ptr<function, array<i32, 4>>());
         auto* result = b.Access(ty.ptr<function, i32>(), arr_var, idx);
         b.Return(func);
         mod.SetName(result, "result");
     });

     ASSERT_TRUE(Generate()) << Error() << output_;
     EXPECT_INST("%result = OpAccessChain %_ptr_Function_int %arr %idx");
 }

 TEST_F(SpirvWriterTest, Access_Matrix_Value_ConstantIndex) {
     auto* mat_val = b.FunctionParam("mat", ty.mat2x2(ty.f32()));
     auto* func = b.Function("foo", ty.void_());
     func->SetParams({mat_val});
     b.With(func->Block(), [&] {
         auto* result_vector = b.Access(ty.vec2(ty.f32()), mat_val, 1_u);
         auto* result_scalar = b.Access(ty.f32(), mat_val, 1_u, 0_u);
         b.Return(func);
         mod.SetName(result_vector, "result_vector");
         mod.SetName(result_scalar, "result_scalar");
     });

     ASSERT_TRUE(Generate()) << Error() << output_;
     EXPECT_INST("%result_vector = OpCompositeExtract %v2float %mat 1");
     EXPECT_INST("%result_scalar = OpCompositeExtract %float %mat 1 0");
 }

 TEST_F(SpirvWriterTest, Access_Matrix_Pointer_ConstantIndex) {
     auto* func = b.Function("foo", ty.void_());
     b.With(func->Block(), [&] {
         auto* mat_var = b.Var("mat", ty.ptr<function, mat2x2<f32>>());
         auto* result_vector = b.Access(ty.ptr<function, vec2<f32>>(), mat_var, 1_u);
         auto* result_scalar = b.LoadVectorElement(result_vector, 0_u);
         b.Return(func);
         mod.SetName(result_vector, "result_vector");
         mod.SetName(result_scalar, "result_scalar");
     });

     ASSERT_TRUE(Generate()) << Error() << output_;
     EXPECT_INST("%result_vector = OpAccessChain %_ptr_Function_v2float %mat %uint_1");
     EXPECT_INST("%14 = OpAccessChain %_ptr_Function_float %result_vector %uint_0");
     EXPECT_INST("%result_scalar = OpLoad %float %14");
 }

 TEST_F(SpirvWriterTest, Access_Matrix_Pointer_DynamicIndex) {
     auto* idx = b.FunctionParam("idx", ty.i32());
     auto* func = b.Function("foo", ty.void_());
     func->SetParams({idx});
     b.With(func->Block(), [&] {
         auto* mat_var = b.Var("mat", ty.ptr<function, mat2x2<f32>>());
         auto* result_vector = b.Access(ty.ptr<function, vec2<f32>>(), mat_var, idx);
         auto* result_scalar = b.LoadVectorElement(result_vector, idx);
         b.Return(func);
         mod.SetName(result_vector, "result_vector");
         mod.SetName(result_scalar, "result_scalar");
     });

     ASSERT_TRUE(Generate()) << Error() << output_;
     EXPECT_INST("%result_vector = OpAccessChain %_ptr_Function_v2float %mat %idx");
     EXPECT_INST("%14 = OpAccessChain %_ptr_Function_float %result_vector %idx");
     EXPECT_INST("%result_scalar = OpLoad %float %14");
 }

 TEST_F(SpirvWriterTest, Access_Vector_Value_ConstantIndex) {
     auto* vec_val = b.FunctionParam("vec", ty.vec4(ty.i32()));
     auto* func = b.Function("foo", ty.void_());
     func->SetParams({vec_val});
     b.With(func->Block(), [&] {
         auto* result = b.Access(ty.i32(), vec_val, 1_u);
         b.Return(func);
         mod.SetName(result, "result");
     });

     ASSERT_TRUE(Generate()) << Error() << output_;
     EXPECT_INST("%result = OpCompositeExtract %int %vec 1");
 }

 TEST_F(SpirvWriterTest, Access_Vector_Value_DynamicIndex) {
     auto* vec_val = b.FunctionParam("vec", ty.vec4(ty.i32()));
     auto* idx = b.FunctionParam("idx", ty.i32());
     auto* func = b.Function("foo", ty.void_());
     func->SetParams({vec_val, idx});
     b.With(func->Block(), [&] {
         auto* result = b.Access(ty.i32(), vec_val, idx);
         b.Return(func);
         mod.SetName(result, "result");
     });

     ASSERT_TRUE(Generate()) << Error() << output_;
     EXPECT_INST("%result = OpVectorExtractDynamic %int %vec %idx");
 }

 TEST_F(SpirvWriterTest, Access_NestedVector_Value_DynamicIndex) {
     auto* val = b.FunctionParam("arr", ty.array(ty.array(ty.vec4(ty.i32()), 4), 4));
     auto* idx = b.FunctionParam("idx", ty.i32());
     auto* func = b.Function("foo", ty.void_());
     func->SetParams({val, idx});
     b.With(func->Block(), [&] {
         auto* result = b.Access(ty.i32(), val, 1_u, 2_u, idx);
         b.Return(func);
         mod.SetName(result, "result");
     });

     ASSERT_TRUE(Generate()) << Error() << output_;
     EXPECT_INST("%14 = OpCompositeExtract %v4int %arr 1 2");
     EXPECT_INST("%result = OpVectorExtractDynamic %int %14 %idx");
 }

 TEST_F(SpirvWriterTest, Access_Struct_Value_ConstantIndex) {
     auto* str =
         ty.Struct(mod.symbols.New("MyStruct"), {
                                                    {mod.symbols.Register("a"), ty.f32()},
                                                    {mod.symbols.Register("b"), ty.vec4<i32>()},
                                                });
     auto* str_val = b.FunctionParam("str", str);
     auto* func = b.Function("foo", ty.void_());
     func->SetParams({str_val});
     b.With(func->Block(), [&] {
         auto* result_a = b.Access(ty.f32(), str_val, 0_u);
         auto* result_b = b.Access(ty.i32(), str_val, 1_u, 2_u);
         b.Return(func);
         mod.SetName(result_a, "result_a");
         mod.SetName(result_b, "result_b");
     });

     ASSERT_TRUE(Generate()) << Error() << output_;
     EXPECT_INST("%result_a = OpCompositeExtract %float %str 0");
     EXPECT_INST("%result_b = OpCompositeExtract %int %str 1 2");
 }

 TEST_F(SpirvWriterTest, Access_Struct_Pointer_ConstantIndex) {
     auto* str =
         ty.Struct(mod.symbols.New("MyStruct"), {
                                                    {mod.symbols.Register("a"), ty.f32()},
                                                    {mod.symbols.Register("b"), ty.vec4<i32>()},
                                                });
     auto* func = b.Function("foo", ty.void_());
     b.With(func->Block(), [&] {
         auto* str_var = b.Var("str", ty.ptr(function, str, read_write));
         auto* result_a = b.Access(ty.ptr<function, f32>(), str_var, 0_u);
         auto* result_b = b.Access(ty.ptr<function, vec4<i32>>(), str_var, 1_u);
         b.Return(func);
         mod.SetName(result_a, "result_a");
         mod.SetName(result_b, "result_b");
     });

     ASSERT_TRUE(Generate()) << Error() << output_;
     EXPECT_INST("%result_a = OpAccessChain %_ptr_Function_float %str %uint_0");
     EXPECT_INST("%result_b = OpAccessChain %_ptr_Function_v4int %str %uint_1");
 }

 TEST_F(SpirvWriterTest, LoadVectorElement_ConstantIndex) {
     auto* func = b.Function("foo", ty.void_());
     b.With(func->Block(), [&] {
         auto* vec_var = b.Var("vec", ty.ptr<function, vec4<i32>>());
         auto* result = b.LoadVectorElement(vec_var, 1_u);
         b.Return(func);
         mod.SetName(result, "result");
     });

     ASSERT_TRUE(Generate()) << Error() << output_;
     EXPECT_INST("%9 = OpAccessChain %_ptr_Function_int %vec %uint_1");
     EXPECT_INST("%result = OpLoad %int %9");
 }

 TEST_F(SpirvWriterTest, LoadVectorElement_DynamicIndex) {
     auto* idx = b.FunctionParam("idx", ty.i32());
     auto* func = b.Function("foo", ty.void_());
     func->SetParams({idx});
     b.With(func->Block(), [&] {
         auto* vec_var = b.Var("vec", ty.ptr<function, vec4<i32>>());
         auto* result = b.LoadVectorElement(vec_var, idx);
         b.Return(func);
         mod.SetName(result, "result");
     });

     ASSERT_TRUE(Generate()) << Error() << output_;
     EXPECT_INST("%10 = OpAccessChain %_ptr_Function_int %vec %idx");
     EXPECT_INST("%result = OpLoad %int %10");
 }

 TEST_F(SpirvWriterTest, StoreVectorElement_ConstantIndex) {
     auto* func = b.Function("foo", ty.void_());
     b.With(func->Block(), [&] {
         auto* vec_var = b.Var("vec", ty.ptr<function, vec4<i32>>());
         b.StoreVectorElement(vec_var, 1_u, b.Constant(42_i));
         b.Return(func);
     });

     ASSERT_TRUE(Generate()) << Error() << output_;
     EXPECT_INST("%9 = OpAccessChain %_ptr_Function_int %vec %uint_1");
     EXPECT_INST("OpStore %9 %int_42");
 }

 TEST_F(SpirvWriterTest, StoreVectorElement_DynamicIndex) {
     auto* idx = b.FunctionParam("idx", ty.i32());
     auto* func = b.Function("foo", ty.void_());
     func->SetParams({idx});
     b.With(func->Block(), [&] {
         auto* vec_var = b.Var("vec", ty.ptr<function, vec4<i32>>());
         b.StoreVectorElement(vec_var, idx, b.Constant(42_i));
         b.Return(func);
     });

     ASSERT_TRUE(Generate()) << Error() << output_;
     EXPECT_INST("%10 = OpAccessChain %_ptr_Function_int %vec %idx");
     EXPECT_INST("OpStore %10 %int_42");
 }

 }  // namespace
 }  // namespace tint::spirv::writer
	// Copyright 2023 The Tint Authors.
	//
	// Licensed under the Apache License, Version 2.0 (the "License");
	// you may not use this file except in compliance with the License.
	// You may obtain a copy of the License at
	//
	// http://www.apache.org/licenses/LICENSE-2.0
	//
	// Unless required by applicable law or agreed to in writing, software
	// distributed under the License is distributed on an "AS IS" BASIS,
	// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	// See the License for the specific language governing permissions and
	// limitations under the License.

	#include "src/tint/lang/spirv/writer/test_helper.h"

	namespace tint::spirv::writer {
	namespace {

	using namespace tint::builtin::fluent_types; // NOLINT
	using namespace tint::number_suffixes; // NOLINT

	TEST_F(SpirvWriterTest, Access_Array_Value_ConstantIndex) {
	auto* arr_val = b.FunctionParam("arr", ty.array(ty.i32(), 4));
	auto* func = b.Function("foo", ty.void_());
	func->SetParams({arr_val});
	b.With(func->Block(), [&] {
	auto* result = b.Access(ty.i32(), arr_val, 1_u);
	b.Return(func);
	mod.SetName(result, "result");
	});

	ASSERT_TRUE(Generate()) << Error() << output_;
	EXPECT_INST("%result = OpCompositeExtract %int %arr 1");
	}

	TEST_F(SpirvWriterTest, Access_Array_Pointer_ConstantIndex) {
	auto* func = b.Function("foo", ty.void_());
	b.With(func->Block(), [&] {
	auto* arr_var = b.Var("arr", ty.ptr<function, array<i32, 4>>());
	auto* result = b.Access(ty.ptr<function, i32>(), arr_var, 1_u);
	b.Return(func);
	mod.SetName(result, "result");
	});

	ASSERT_TRUE(Generate()) << Error() << output_;
	EXPECT_INST("%result = OpAccessChain %_ptr_Function_int %arr %uint_1");
	}

	TEST_F(SpirvWriterTest, Access_Array_Pointer_DynamicIndex) {
	auto* idx = b.FunctionParam("idx", ty.i32());
	auto* func = b.Function("foo", ty.void_());
	func->SetParams({idx});
	b.With(func->Block(), [&] {
	auto* arr_var = b.Var("arr", ty.ptr<function, array<i32, 4>>());
	auto* result = b.Access(ty.ptr<function, i32>(), arr_var, idx);
	b.Return(func);
	mod.SetName(result, "result");
	});

	ASSERT_TRUE(Generate()) << Error() << output_;
	EXPECT_INST("%result = OpAccessChain %_ptr_Function_int %arr %idx");
	}

	TEST_F(SpirvWriterTest, Access_Matrix_Value_ConstantIndex) {
	auto* mat_val = b.FunctionParam("mat", ty.mat2x2(ty.f32()));
	auto* func = b.Function("foo", ty.void_());
	func->SetParams({mat_val});
	b.With(func->Block(), [&] {
	auto* result_vector = b.Access(ty.vec2(ty.f32()), mat_val, 1_u);
	auto* result_scalar = b.Access(ty.f32(), mat_val, 1_u, 0_u);
	b.Return(func);
	mod.SetName(result_vector, "result_vector");
	mod.SetName(result_scalar, "result_scalar");
	});

	ASSERT_TRUE(Generate()) << Error() << output_;
	EXPECT_INST("%result_vector = OpCompositeExtract %v2float %mat 1");
	EXPECT_INST("%result_scalar = OpCompositeExtract %float %mat 1 0");
	}

	TEST_F(SpirvWriterTest, Access_Matrix_Pointer_ConstantIndex) {
	auto* func = b.Function("foo", ty.void_());
	b.With(func->Block(), [&] {
	auto* mat_var = b.Var("mat", ty.ptr<function, mat2x2<f32>>());
	auto* result_vector = b.Access(ty.ptr<function, vec2<f32>>(), mat_var, 1_u);
	auto* result_scalar = b.LoadVectorElement(result_vector, 0_u);
	b.Return(func);
	mod.SetName(result_vector, "result_vector");
	mod.SetName(result_scalar, "result_scalar");
	});

	ASSERT_TRUE(Generate()) << Error() << output_;
	EXPECT_INST("%result_vector = OpAccessChain %_ptr_Function_v2float %mat %uint_1");
	EXPECT_INST("%14 = OpAccessChain %_ptr_Function_float %result_vector %uint_0");
	EXPECT_INST("%result_scalar = OpLoad %float %14");
	}

	TEST_F(SpirvWriterTest, Access_Matrix_Pointer_DynamicIndex) {
	auto* idx = b.FunctionParam("idx", ty.i32());
	auto* func = b.Function("foo", ty.void_());
	func->SetParams({idx});
	b.With(func->Block(), [&] {
	auto* mat_var = b.Var("mat", ty.ptr<function, mat2x2<f32>>());
	auto* result_vector = b.Access(ty.ptr<function, vec2<f32>>(), mat_var, idx);
	auto* result_scalar = b.LoadVectorElement(result_vector, idx);
	b.Return(func);
	mod.SetName(result_vector, "result_vector");
	mod.SetName(result_scalar, "result_scalar");
	});

	ASSERT_TRUE(Generate()) << Error() << output_;
	EXPECT_INST("%result_vector = OpAccessChain %_ptr_Function_v2float %mat %idx");
	EXPECT_INST("%14 = OpAccessChain %_ptr_Function_float %result_vector %idx");
	EXPECT_INST("%result_scalar = OpLoad %float %14");
	}

	TEST_F(SpirvWriterTest, Access_Vector_Value_ConstantIndex) {
	auto* vec_val = b.FunctionParam("vec", ty.vec4(ty.i32()));
	auto* func = b.Function("foo", ty.void_());
	func->SetParams({vec_val});
	b.With(func->Block(), [&] {
	auto* result = b.Access(ty.i32(), vec_val, 1_u);
	b.Return(func);
	mod.SetName(result, "result");
	});

	ASSERT_TRUE(Generate()) << Error() << output_;
	EXPECT_INST("%result = OpCompositeExtract %int %vec 1");
	}

	TEST_F(SpirvWriterTest, Access_Vector_Value_DynamicIndex) {
	auto* vec_val = b.FunctionParam("vec", ty.vec4(ty.i32()));
	auto* idx = b.FunctionParam("idx", ty.i32());
	auto* func = b.Function("foo", ty.void_());
	func->SetParams({vec_val, idx});
	b.With(func->Block(), [&] {
	auto* result = b.Access(ty.i32(), vec_val, idx);
	b.Return(func);
	mod.SetName(result, "result");
	});

	ASSERT_TRUE(Generate()) << Error() << output_;
	EXPECT_INST("%result = OpVectorExtractDynamic %int %vec %idx");
	}

	TEST_F(SpirvWriterTest, Access_NestedVector_Value_DynamicIndex) {
	auto* val = b.FunctionParam("arr", ty.array(ty.array(ty.vec4(ty.i32()), 4), 4));
	auto* idx = b.FunctionParam("idx", ty.i32());
	auto* func = b.Function("foo", ty.void_());
	func->SetParams({val, idx});
	b.With(func->Block(), [&] {
	auto* result = b.Access(ty.i32(), val, 1_u, 2_u, idx);
	b.Return(func);
	mod.SetName(result, "result");
	});

	ASSERT_TRUE(Generate()) << Error() << output_;
	EXPECT_INST("%14 = OpCompositeExtract %v4int %arr 1 2");
	EXPECT_INST("%result = OpVectorExtractDynamic %int %14 %idx");
	}

	TEST_F(SpirvWriterTest, Access_Struct_Value_ConstantIndex) {
	auto* str =
	ty.Struct(mod.symbols.New("MyStruct"), {
	{mod.symbols.Register("a"), ty.f32()},
	{mod.symbols.Register("b"), ty.vec4<i32>()},
	});
	auto* str_val = b.FunctionParam("str", str);
	auto* func = b.Function("foo", ty.void_());
	func->SetParams({str_val});
	b.With(func->Block(), [&] {
	auto* result_a = b.Access(ty.f32(), str_val, 0_u);
	auto* result_b = b.Access(ty.i32(), str_val, 1_u, 2_u);
	b.Return(func);
	mod.SetName(result_a, "result_a");
	mod.SetName(result_b, "result_b");
	});

	ASSERT_TRUE(Generate()) << Error() << output_;
	EXPECT_INST("%result_a = OpCompositeExtract %float %str 0");
	EXPECT_INST("%result_b = OpCompositeExtract %int %str 1 2");
	}

	TEST_F(SpirvWriterTest, Access_Struct_Pointer_ConstantIndex) {
	auto* str =
	ty.Struct(mod.symbols.New("MyStruct"), {
	{mod.symbols.Register("a"), ty.f32()},
	{mod.symbols.Register("b"), ty.vec4<i32>()},
	});
	auto* func = b.Function("foo", ty.void_());
	b.With(func->Block(), [&] {
	auto* str_var = b.Var("str", ty.ptr(function, str, read_write));
	auto* result_a = b.Access(ty.ptr<function, f32>(), str_var, 0_u);
	auto* result_b = b.Access(ty.ptr<function, vec4<i32>>(), str_var, 1_u);
	b.Return(func);
	mod.SetName(result_a, "result_a");
	mod.SetName(result_b, "result_b");
	});

	ASSERT_TRUE(Generate()) << Error() << output_;
	EXPECT_INST("%result_a = OpAccessChain %_ptr_Function_float %str %uint_0");
	EXPECT_INST("%result_b = OpAccessChain %_ptr_Function_v4int %str %uint_1");
	}

	TEST_F(SpirvWriterTest, LoadVectorElement_ConstantIndex) {
	auto* func = b.Function("foo", ty.void_());
	b.With(func->Block(), [&] {
	auto* vec_var = b.Var("vec", ty.ptr<function, vec4<i32>>());
	auto* result = b.LoadVectorElement(vec_var, 1_u);
	b.Return(func);
	mod.SetName(result, "result");
	});

	ASSERT_TRUE(Generate()) << Error() << output_;
	EXPECT_INST("%9 = OpAccessChain %_ptr_Function_int %vec %uint_1");
	EXPECT_INST("%result = OpLoad %int %9");
	}

	TEST_F(SpirvWriterTest, LoadVectorElement_DynamicIndex) {
	auto* idx = b.FunctionParam("idx", ty.i32());
	auto* func = b.Function("foo", ty.void_());
	func->SetParams({idx});
	b.With(func->Block(), [&] {
	auto* vec_var = b.Var("vec", ty.ptr<function, vec4<i32>>());
	auto* result = b.LoadVectorElement(vec_var, idx);
	b.Return(func);
	mod.SetName(result, "result");
	});

	ASSERT_TRUE(Generate()) << Error() << output_;
	EXPECT_INST("%10 = OpAccessChain %_ptr_Function_int %vec %idx");
	EXPECT_INST("%result = OpLoad %int %10");
	}

	TEST_F(SpirvWriterTest, StoreVectorElement_ConstantIndex) {
	auto* func = b.Function("foo", ty.void_());
	b.With(func->Block(), [&] {
	auto* vec_var = b.Var("vec", ty.ptr<function, vec4<i32>>());
	b.StoreVectorElement(vec_var, 1_u, b.Constant(42_i));
	b.Return(func);
	});

	ASSERT_TRUE(Generate()) << Error() << output_;
	EXPECT_INST("%9 = OpAccessChain %_ptr_Function_int %vec %uint_1");
	EXPECT_INST("OpStore %9 %int_42");
	}

	TEST_F(SpirvWriterTest, StoreVectorElement_DynamicIndex) {
	auto* idx = b.FunctionParam("idx", ty.i32());
	auto* func = b.Function("foo", ty.void_());
	func->SetParams({idx});
	b.With(func->Block(), [&] {
	auto* vec_var = b.Var("vec", ty.ptr<function, vec4<i32>>());
	b.StoreVectorElement(vec_var, idx, b.Constant(42_i));
	b.Return(func);
	});

	ASSERT_TRUE(Generate()) << Error() << output_;
	EXPECT_INST("%10 = OpAccessChain %_ptr_Function_int %vec %idx");
	EXPECT_INST("OpStore %10 %int_42");
	}

	} // namespace
	} // namespace tint::spirv::writer