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

 // Copyright 2023 The Dawn & Tint Authors
 //
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are met:
 //
 // 1. Redistributions of source code must retain the above copyright notice, this
 //    list of conditions and the following disclaimer.
 //
 // 2. Redistributions in binary form must reproduce the above copyright notice,
 //    this list of conditions and the following disclaimer in the documentation
 //    and/or other materials provided with the distribution.
 //
 // 3. Neither the name of the copyright holder nor the names of its
 //    contributors may be used to endorse or promote products derived from
 //    this software without specific prior written permission.
 //
 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 // AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 // DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
 // FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 // DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 // SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
 // CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 // OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

 #include "src/tint/lang/spirv/writer/common/helper_test.h"

 namespace tint::spirv::writer {
 namespace {

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

 TEST_F(SpirvWriterTest, Construct_Vector) {
     auto* func = b.Function("foo", ty.vec4<i32>());
     func->SetParams({
         b.FunctionParam("a", ty.i32()),
         b.FunctionParam("b", ty.i32()),
         b.FunctionParam("c", ty.i32()),
         b.FunctionParam("d", ty.i32()),
     });
     b.Append(func->Block(), [&] {
         auto* result = b.Construct(ty.vec4<i32>(), func->Params());
         b.Return(func, result);
         mod.SetName(result, "result");
     });

     ASSERT_TRUE(Generate()) << Error() << output_;
     EXPECT_INST("%result = OpCompositeConstruct %v4int %a %b %c %d");
 }

 TEST_F(SpirvWriterTest, Construct_Matrix) {
     auto* func = b.Function("foo", ty.mat3x4<f32>());
     func->SetParams({
         b.FunctionParam("a", ty.vec4<f32>()),
         b.FunctionParam("b", ty.vec4<f32>()),
         b.FunctionParam("c", ty.vec4<f32>()),
     });
     b.Append(func->Block(), [&] {
         auto* result = b.Construct(ty.mat3x4<f32>(), func->Params());
         b.Return(func, result);
         mod.SetName(result, "result");
     });

     ASSERT_TRUE(Generate()) << Error() << output_;
     EXPECT_INST("%result = OpCompositeConstruct %mat3v4float %a %b %c");
 }

 TEST_F(SpirvWriterTest, Construct_Array) {
     auto* func = b.Function("foo", ty.array<f32, 4>());
     func->SetParams({
         b.FunctionParam("a", ty.f32()),
         b.FunctionParam("b", ty.f32()),
         b.FunctionParam("c", ty.f32()),
         b.FunctionParam("d", ty.f32()),
     });
     b.Append(func->Block(), [&] {
         auto* result = b.Construct(ty.array<f32, 4>(), func->Params());
         b.Return(func, result);
         mod.SetName(result, "result");
     });

     ASSERT_TRUE(Generate()) << Error() << output_;
     EXPECT_INST("%result = OpCompositeConstruct %_arr_float_uint_4 %a %b %c %d");
 }

 TEST_F(SpirvWriterTest, Construct_Struct) {
     auto* str =
         ty.Struct(mod.symbols.New("MyStruct"), {
                                                    {mod.symbols.Register("a"), ty.i32()},
                                                    {mod.symbols.Register("b"), ty.u32()},
                                                    {mod.symbols.Register("c"), ty.vec4<f32>()},
                                                });
     auto* func = b.Function("foo", str);
     func->SetParams({
         b.FunctionParam("a", ty.i32()),
         b.FunctionParam("b", ty.u32()),
         b.FunctionParam("c", ty.vec4<f32>()),
     });
     b.Append(func->Block(), [&] {
         auto* result = b.Construct(str, func->Params());
         b.Return(func, result);
         mod.SetName(result, "result");
     });

     ASSERT_TRUE(Generate()) << Error() << output_;
     EXPECT_INST("%result = OpCompositeConstruct %MyStruct %a %b %c");
 }

 TEST_F(SpirvWriterTest, Construct_Scalar_Identity) {
     auto* func = b.Function("foo", ty.i32());
     func->SetParams({b.FunctionParam("arg", ty.i32())});
     b.Append(func->Block(), [&] {
         auto* result = b.Construct(ty.i32(), func->Params()[0]);
         b.Return(func, result);
     });

     ASSERT_TRUE(Generate()) << Error() << output_;
     EXPECT_INST("OpReturnValue %arg");
 }

 TEST_F(SpirvWriterTest, Construct_Vector_Identity) {
     auto* func = b.Function("foo", ty.vec4<i32>());
     func->SetParams({b.FunctionParam("arg", ty.vec4<i32>())});
     b.Append(func->Block(), [&] {
         auto* result = b.Construct(ty.vec4<i32>(), func->Params()[0]);
         b.Return(func, result);
     });

     ASSERT_TRUE(Generate()) << Error() << output_;
     EXPECT_INST("OpReturnValue %arg");
 }

 TEST_F(SpirvWriterTest, Construct_SubgroupMatrix_ZeroValue) {
     auto* func = b.Function("foo", ty.void_());
     b.Append(func->Block(), [&] {
         b.Let("left", b.Construct(ty.subgroup_matrix_left(ty.f32(), 8, 4)));
         b.Let("right", b.Construct(ty.subgroup_matrix_right(ty.i32(), 4, 8)));
         b.Let("result", b.Construct(ty.subgroup_matrix_result(ty.u32(), 2, 2)));
         b.Return(func);
     });

     Options options;
     options.use_vulkan_memory_model = true;
     ASSERT_TRUE(Generate(options)) << Error() << output_;
     EXPECT_INST("%6 = OpTypeCooperativeMatrixKHR %float %uint_3 %uint_4 %uint_8 %uint_0");
     EXPECT_INST("%left = OpConstantComposite %6 %float_0");
     EXPECT_INST("%15 = OpTypeCooperativeMatrixKHR %int %uint_3 %uint_8 %uint_4 %uint_1");
     EXPECT_INST("%right = OpConstantComposite %15 %int_0");
     EXPECT_INST("%20 = OpTypeCooperativeMatrixKHR %uint %uint_3 %uint_2 %uint_2 %uint_2");
     EXPECT_INST("%result = OpConstantComposite %20 %uint_0");
 }

 TEST_F(SpirvWriterTest, Construct_SubgroupMatrix_SingleValue) {
     auto* func = b.Function("foo", ty.void_());
     auto* arg = b.FunctionParam("arg", ty.i32());
     func->SetParams({arg});
     b.Append(func->Block(), [&] {
         b.Let("left", b.Construct(ty.subgroup_matrix_left(ty.i32(), 8, 4), arg));
         b.Let("right", b.Construct(ty.subgroup_matrix_right(ty.i32(), 4, 8), arg));
         b.Let("result", b.Construct(ty.subgroup_matrix_result(ty.i32(), 2, 2), arg));
         b.Return(func);
     });

     Options options;
     options.use_vulkan_memory_model = true;
     ASSERT_TRUE(Generate(options)) << Error() << output_;
     EXPECT_INST("%7 = OpTypeCooperativeMatrixKHR %int %uint_3 %uint_4 %uint_8 %uint_0");
     EXPECT_INST("%14 = OpTypeCooperativeMatrixKHR %int %uint_3 %uint_8 %uint_4 %uint_1");
     EXPECT_INST("%17 = OpTypeCooperativeMatrixKHR %int %uint_3 %uint_2 %uint_2 %uint_2");
     EXPECT_INST("%left = OpCompositeConstruct %7 %arg");
     EXPECT_INST("%right = OpCompositeConstruct %14 %arg");
     EXPECT_INST("%result = OpCompositeConstruct %17 %arg");
 }

 TEST_F(SpirvWriterTest, Construct_ArrayOfSubgroupMatrix_ZeroValue) {
     auto* func = b.Function("foo", ty.void_());
     b.Append(func->Block(), [&] {
         b.Let("left", b.Construct(ty.array(ty.subgroup_matrix_left(ty.f32(), 8, 4), 4u)));
         b.Let("right", b.Construct(ty.array(ty.subgroup_matrix_right(ty.i32(), 4, 8), 4u)));
         b.Let("result", b.Construct(ty.array(ty.subgroup_matrix_result(ty.u32(), 2, 2), 4u)));
         b.Return(func);
     });

     Options options{
         .use_vulkan_memory_model = true,
     };
     ASSERT_TRUE(Generate(options)) << Error() << output_;
     EXPECT_INST(R"(
           %7 = OpTypeCooperativeMatrixKHR %float %uint_3 %uint_4 %uint_8 %uint_0
 %_arr_7_uint_4 = OpTypeArray %7 %uint_4
     %float_0 = OpConstant %float 0
          %14 = OpConstantComposite %7 %float_0
        %left = OpConstantComposite %_arr_7_uint_4 %14 %14 %14 %14
         %int = OpTypeInt 32 1
      %uint_1 = OpConstant %uint 1
          %18 = OpTypeCooperativeMatrixKHR %int %uint_3 %uint_8 %uint_4 %uint_1
 %_arr_18_uint_4 = OpTypeArray %18 %uint_4
       %int_0 = OpConstant %int 0
          %21 = OpConstantComposite %18 %int_0
       %right = OpConstantComposite %_arr_18_uint_4 %21 %21 %21 %21
      %uint_2 = OpConstant %uint 2
          %25 = OpTypeCooperativeMatrixKHR %uint %uint_3 %uint_2 %uint_2 %uint_2
 %_arr_25_uint_4 = OpTypeArray %25 %uint_4
          %27 = OpConstantComposite %25 %uint_0
      %result = OpConstantComposite %_arr_25_uint_4 %27 %27 %27 %27
 )");
 }

 TEST_F(SpirvWriterTest, Construct_StructOfSubgroupMatrix_ZeroValue) {
     auto* str = ty.Struct(
         mod.symbols.New("MyStruct"),
         {
             {mod.symbols.Register("left"), ty.array(ty.subgroup_matrix_left(ty.f32(), 8, 4), 4u)},
             {mod.symbols.Register("right"), ty.array(ty.subgroup_matrix_right(ty.i32(), 4, 8), 4u)},
             {mod.symbols.Register("res"), ty.array(ty.subgroup_matrix_result(ty.u32(), 2, 2), 4u)},
         });

     auto* func = b.Function("foo", ty.void_());
     b.Append(func->Block(), [&] {
         b.Let("s", b.Construct(str));
         b.Return(func);
     });

     Options options{
         .use_vulkan_memory_model = true,
     };
     ASSERT_TRUE(Generate(options)) << Error() << output_;
     EXPECT_INST(R"(
           %8 = OpTypeCooperativeMatrixKHR %float %uint_3 %uint_4 %uint_8 %uint_0
 %_arr_8_uint_4 = OpTypeArray %8 %uint_4
         %int = OpTypeInt 32 1
      %uint_1 = OpConstant %uint 1
          %16 = OpTypeCooperativeMatrixKHR %int %uint_3 %uint_8 %uint_4 %uint_1
 %_arr_16_uint_4 = OpTypeArray %16 %uint_4
      %uint_2 = OpConstant %uint 2
          %20 = OpTypeCooperativeMatrixKHR %uint %uint_3 %uint_2 %uint_2 %uint_2
 %_arr_20_uint_4 = OpTypeArray %20 %uint_4
    %MyStruct = OpTypeStruct %_arr_8_uint_4 %_arr_16_uint_4 %_arr_20_uint_4
     %float_0 = OpConstant %float 0
          %23 = OpConstantComposite %8 %float_0
          %22 = OpConstantComposite %_arr_8_uint_4 %23 %23 %23 %23
       %int_0 = OpConstant %int 0
          %26 = OpConstantComposite %16 %int_0
          %25 = OpConstantComposite %_arr_16_uint_4 %26 %26 %26 %26
          %29 = OpConstantComposite %20 %uint_0
          %28 = OpConstantComposite %_arr_20_uint_4 %29 %29 %29 %29
           %s = OpConstantComposite %MyStruct %22 %25 %28
 )");
 }

 }  // namespace
 }  // namespace tint::spirv::writer
	// Copyright 2023 The Dawn & Tint Authors
	//
	// Redistribution and use in source and binary forms, with or without
	// modification, are permitted provided that the following conditions are met:
	//
	// 1. Redistributions of source code must retain the above copyright notice, this
	// list of conditions and the following disclaimer.
	//
	// 2. Redistributions in binary form must reproduce the above copyright notice,
	// this list of conditions and the following disclaimer in the documentation
	// and/or other materials provided with the distribution.
	//
	// 3. Neither the name of the copyright holder nor the names of its
	// contributors may be used to endorse or promote products derived from
	// this software without specific prior written permission.
	//
	// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
	// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
	// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
	// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
	// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
	// CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
	// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
	// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

	#include "src/tint/lang/spirv/writer/common/helper_test.h"

	namespace tint::spirv::writer {
	namespace {

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

	TEST_F(SpirvWriterTest, Construct_Vector) {
	auto* func = b.Function("foo", ty.vec4<i32>());
	func->SetParams({
	b.FunctionParam("a", ty.i32()),
	b.FunctionParam("b", ty.i32()),
	b.FunctionParam("c", ty.i32()),
	b.FunctionParam("d", ty.i32()),
	});
	b.Append(func->Block(), [&] {
	auto* result = b.Construct(ty.vec4<i32>(), func->Params());
	b.Return(func, result);
	mod.SetName(result, "result");
	});

	ASSERT_TRUE(Generate()) << Error() << output_;
	EXPECT_INST("%result = OpCompositeConstruct %v4int %a %b %c %d");
	}

	TEST_F(SpirvWriterTest, Construct_Matrix) {
	auto* func = b.Function("foo", ty.mat3x4<f32>());
	func->SetParams({
	b.FunctionParam("a", ty.vec4<f32>()),
	b.FunctionParam("b", ty.vec4<f32>()),
	b.FunctionParam("c", ty.vec4<f32>()),
	});
	b.Append(func->Block(), [&] {
	auto* result = b.Construct(ty.mat3x4<f32>(), func->Params());
	b.Return(func, result);
	mod.SetName(result, "result");
	});

	ASSERT_TRUE(Generate()) << Error() << output_;
	EXPECT_INST("%result = OpCompositeConstruct %mat3v4float %a %b %c");
	}

	TEST_F(SpirvWriterTest, Construct_Array) {
	auto* func = b.Function("foo", ty.array<f32, 4>());
	func->SetParams({
	b.FunctionParam("a", ty.f32()),
	b.FunctionParam("b", ty.f32()),
	b.FunctionParam("c", ty.f32()),
	b.FunctionParam("d", ty.f32()),
	});
	b.Append(func->Block(), [&] {
	auto* result = b.Construct(ty.array<f32, 4>(), func->Params());
	b.Return(func, result);
	mod.SetName(result, "result");
	});

	ASSERT_TRUE(Generate()) << Error() << output_;
	EXPECT_INST("%result = OpCompositeConstruct %_arr_float_uint_4 %a %b %c %d");
	}

	TEST_F(SpirvWriterTest, Construct_Struct) {
	auto* str =
	ty.Struct(mod.symbols.New("MyStruct"), {
	{mod.symbols.Register("a"), ty.i32()},
	{mod.symbols.Register("b"), ty.u32()},
	{mod.symbols.Register("c"), ty.vec4<f32>()},
	});
	auto* func = b.Function("foo", str);
	func->SetParams({
	b.FunctionParam("a", ty.i32()),
	b.FunctionParam("b", ty.u32()),
	b.FunctionParam("c", ty.vec4<f32>()),
	});
	b.Append(func->Block(), [&] {
	auto* result = b.Construct(str, func->Params());
	b.Return(func, result);
	mod.SetName(result, "result");
	});

	ASSERT_TRUE(Generate()) << Error() << output_;
	EXPECT_INST("%result = OpCompositeConstruct %MyStruct %a %b %c");
	}

	TEST_F(SpirvWriterTest, Construct_Scalar_Identity) {
	auto* func = b.Function("foo", ty.i32());
	func->SetParams({b.FunctionParam("arg", ty.i32())});
	b.Append(func->Block(), [&] {
	auto* result = b.Construct(ty.i32(), func->Params()[0]);
	b.Return(func, result);
	});

	ASSERT_TRUE(Generate()) << Error() << output_;
	EXPECT_INST("OpReturnValue %arg");
	}

	TEST_F(SpirvWriterTest, Construct_Vector_Identity) {
	auto* func = b.Function("foo", ty.vec4<i32>());
	func->SetParams({b.FunctionParam("arg", ty.vec4<i32>())});
	b.Append(func->Block(), [&] {
	auto* result = b.Construct(ty.vec4<i32>(), func->Params()[0]);
	b.Return(func, result);
	});

	ASSERT_TRUE(Generate()) << Error() << output_;
	EXPECT_INST("OpReturnValue %arg");
	}

	TEST_F(SpirvWriterTest, Construct_SubgroupMatrix_ZeroValue) {
	auto* func = b.Function("foo", ty.void_());
	b.Append(func->Block(), [&] {
	b.Let("left", b.Construct(ty.subgroup_matrix_left(ty.f32(), 8, 4)));
	b.Let("right", b.Construct(ty.subgroup_matrix_right(ty.i32(), 4, 8)));
	b.Let("result", b.Construct(ty.subgroup_matrix_result(ty.u32(), 2, 2)));
	b.Return(func);
	});

	Options options;
	options.use_vulkan_memory_model = true;
	ASSERT_TRUE(Generate(options)) << Error() << output_;
	EXPECT_INST("%6 = OpTypeCooperativeMatrixKHR %float %uint_3 %uint_4 %uint_8 %uint_0");
	EXPECT_INST("%left = OpConstantComposite %6 %float_0");
	EXPECT_INST("%15 = OpTypeCooperativeMatrixKHR %int %uint_3 %uint_8 %uint_4 %uint_1");
	EXPECT_INST("%right = OpConstantComposite %15 %int_0");
	EXPECT_INST("%20 = OpTypeCooperativeMatrixKHR %uint %uint_3 %uint_2 %uint_2 %uint_2");
	EXPECT_INST("%result = OpConstantComposite %20 %uint_0");
	}

	TEST_F(SpirvWriterTest, Construct_SubgroupMatrix_SingleValue) {
	auto* func = b.Function("foo", ty.void_());
	auto* arg = b.FunctionParam("arg", ty.i32());
	func->SetParams({arg});
	b.Append(func->Block(), [&] {
	b.Let("left", b.Construct(ty.subgroup_matrix_left(ty.i32(), 8, 4), arg));
	b.Let("right", b.Construct(ty.subgroup_matrix_right(ty.i32(), 4, 8), arg));
	b.Let("result", b.Construct(ty.subgroup_matrix_result(ty.i32(), 2, 2), arg));
	b.Return(func);
	});

	Options options;
	options.use_vulkan_memory_model = true;
	ASSERT_TRUE(Generate(options)) << Error() << output_;
	EXPECT_INST("%7 = OpTypeCooperativeMatrixKHR %int %uint_3 %uint_4 %uint_8 %uint_0");
	EXPECT_INST("%14 = OpTypeCooperativeMatrixKHR %int %uint_3 %uint_8 %uint_4 %uint_1");
	EXPECT_INST("%17 = OpTypeCooperativeMatrixKHR %int %uint_3 %uint_2 %uint_2 %uint_2");
	EXPECT_INST("%left = OpCompositeConstruct %7 %arg");
	EXPECT_INST("%right = OpCompositeConstruct %14 %arg");
	EXPECT_INST("%result = OpCompositeConstruct %17 %arg");
	}

	TEST_F(SpirvWriterTest, Construct_ArrayOfSubgroupMatrix_ZeroValue) {
	auto* func = b.Function("foo", ty.void_());
	b.Append(func->Block(), [&] {
	b.Let("left", b.Construct(ty.array(ty.subgroup_matrix_left(ty.f32(), 8, 4), 4u)));
	b.Let("right", b.Construct(ty.array(ty.subgroup_matrix_right(ty.i32(), 4, 8), 4u)));
	b.Let("result", b.Construct(ty.array(ty.subgroup_matrix_result(ty.u32(), 2, 2), 4u)));
	b.Return(func);
	});

	Options options{
	.use_vulkan_memory_model = true,
	};
	ASSERT_TRUE(Generate(options)) << Error() << output_;
	EXPECT_INST(R"(
	%7 = OpTypeCooperativeMatrixKHR %float %uint_3 %uint_4 %uint_8 %uint_0
	%_arr_7_uint_4 = OpTypeArray %7 %uint_4
	%float_0 = OpConstant %float 0
	%14 = OpConstantComposite %7 %float_0
	%left = OpConstantComposite %_arr_7_uint_4 %14 %14 %14 %14
	%int = OpTypeInt 32 1
	%uint_1 = OpConstant %uint 1
	%18 = OpTypeCooperativeMatrixKHR %int %uint_3 %uint_8 %uint_4 %uint_1
	%_arr_18_uint_4 = OpTypeArray %18 %uint_4
	%int_0 = OpConstant %int 0
	%21 = OpConstantComposite %18 %int_0
	%right = OpConstantComposite %_arr_18_uint_4 %21 %21 %21 %21
	%uint_2 = OpConstant %uint 2
	%25 = OpTypeCooperativeMatrixKHR %uint %uint_3 %uint_2 %uint_2 %uint_2
	%_arr_25_uint_4 = OpTypeArray %25 %uint_4
	%27 = OpConstantComposite %25 %uint_0
	%result = OpConstantComposite %_arr_25_uint_4 %27 %27 %27 %27
	)");
	}

	TEST_F(SpirvWriterTest, Construct_StructOfSubgroupMatrix_ZeroValue) {
	auto* str = ty.Struct(
	mod.symbols.New("MyStruct"),
	{
	{mod.symbols.Register("left"), ty.array(ty.subgroup_matrix_left(ty.f32(), 8, 4), 4u)},
	{mod.symbols.Register("right"), ty.array(ty.subgroup_matrix_right(ty.i32(), 4, 8), 4u)},
	{mod.symbols.Register("res"), ty.array(ty.subgroup_matrix_result(ty.u32(), 2, 2), 4u)},
	});

	auto* func = b.Function("foo", ty.void_());
	b.Append(func->Block(), [&] {
	b.Let("s", b.Construct(str));
	b.Return(func);
	});

	Options options{
	.use_vulkan_memory_model = true,
	};
	ASSERT_TRUE(Generate(options)) << Error() << output_;
	EXPECT_INST(R"(
	%8 = OpTypeCooperativeMatrixKHR %float %uint_3 %uint_4 %uint_8 %uint_0
	%_arr_8_uint_4 = OpTypeArray %8 %uint_4
	%int = OpTypeInt 32 1
	%uint_1 = OpConstant %uint 1
	%16 = OpTypeCooperativeMatrixKHR %int %uint_3 %uint_8 %uint_4 %uint_1
	%_arr_16_uint_4 = OpTypeArray %16 %uint_4
	%uint_2 = OpConstant %uint 2
	%20 = OpTypeCooperativeMatrixKHR %uint %uint_3 %uint_2 %uint_2 %uint_2
	%_arr_20_uint_4 = OpTypeArray %20 %uint_4
	%MyStruct = OpTypeStruct %_arr_8_uint_4 %_arr_16_uint_4 %_arr_20_uint_4
	%float_0 = OpConstant %float 0
	%23 = OpConstantComposite %8 %float_0
	%22 = OpConstantComposite %_arr_8_uint_4 %23 %23 %23 %23
	%int_0 = OpConstant %int 0
	%26 = OpConstantComposite %16 %int_0
	%25 = OpConstantComposite %_arr_16_uint_4 %26 %26 %26 %26
	%29 = OpConstantComposite %20 %uint_0
	%28 = OpConstantComposite %_arr_20_uint_4 %29 %29 %29 %29
	%s = OpConstantComposite %MyStruct %22 %25 %28
	)");
	}

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