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// Copyright 2020 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/writer/spirv/spv_dump.h"
#include "src/writer/spirv/test_helper.h"
namespace tint {
namespace writer {
namespace spirv {
namespace {
using BuilderTest = TestHelper;
TEST_F(BuilderTest, IdentifierExpression_GlobalConst) {
auto* init = vec3<f32>(1.f, 1.f, 3.f);
auto* v = GlobalConst("var", ty.vec3<f32>(), init);
auto* expr = Expr("var");
WrapInFunction(expr);
spirv::Builder& b = Build();
EXPECT_TRUE(b.GenerateGlobalVariable(v)) << b.error();
ASSERT_FALSE(b.has_error()) << b.error();
EXPECT_EQ(DumpInstructions(b.types()), R"(%2 = OpTypeFloat 32
%1 = OpTypeVector %2 3
%3 = OpConstant %2 1
%4 = OpConstant %2 3
%5 = OpConstantComposite %1 %3 %3 %4
)");
EXPECT_EQ(b.GenerateIdentifierExpression(expr), 5u);
}
TEST_F(BuilderTest, IdentifierExpression_GlobalVar) {
auto* v = Global("var", ty.f32(), ast::StorageClass::kPrivate);
auto* expr = Expr("var");
WrapInFunction(expr);
spirv::Builder& b = Build();
b.push_function(Function{});
EXPECT_TRUE(b.GenerateGlobalVariable(v)) << b.error();
EXPECT_EQ(DumpInstructions(b.debug()), R"(OpName %1 "var"
)");
EXPECT_EQ(DumpInstructions(b.types()), R"(%3 = OpTypeFloat 32
%2 = OpTypePointer Private %3
%4 = OpConstantNull %3
%1 = OpVariable %2 Private %4
)");
EXPECT_EQ(b.GenerateIdentifierExpression(expr), 1u);
}
TEST_F(BuilderTest, IdentifierExpression_FunctionConst) {
auto* init = vec3<f32>(1.f, 1.f, 3.f);
auto* v = Const("var", ty.vec3<f32>(), init);
auto* expr = Expr("var");
WrapInFunction(v, expr);
spirv::Builder& b = Build();
EXPECT_TRUE(b.GenerateFunctionVariable(v)) << b.error();
ASSERT_FALSE(b.has_error()) << b.error();
EXPECT_EQ(DumpInstructions(b.types()), R"(%2 = OpTypeFloat 32
%1 = OpTypeVector %2 3
%3 = OpConstant %2 1
%4 = OpConstant %2 3
%5 = OpConstantComposite %1 %3 %3 %4
)");
EXPECT_EQ(b.GenerateIdentifierExpression(expr), 5u);
}
TEST_F(BuilderTest, IdentifierExpression_FunctionVar) {
auto* v = Var("var", ty.f32(), ast::StorageClass::kFunction);
auto* expr = Expr("var");
WrapInFunction(v, expr);
spirv::Builder& b = Build();
b.push_function(Function{});
EXPECT_TRUE(b.GenerateFunctionVariable(v)) << b.error();
EXPECT_EQ(DumpInstructions(b.debug()), R"(OpName %1 "var"
)");
EXPECT_EQ(DumpInstructions(b.types()), R"(%3 = OpTypeFloat 32
%2 = OpTypePointer Function %3
%4 = OpConstantNull %3
)");
const auto& func = b.functions()[0];
EXPECT_EQ(DumpInstructions(func.variables()),
R"(%1 = OpVariable %2 Function %4
)");
EXPECT_EQ(b.GenerateIdentifierExpression(expr), 1u);
}
TEST_F(BuilderTest, IdentifierExpression_Load) {
auto* var = Global("var", ty.i32(), ast::StorageClass::kPrivate);
auto* expr = Add("var", "var");
WrapInFunction(expr);
spirv::Builder& b = Build();
b.push_function(Function{});
ASSERT_TRUE(b.GenerateGlobalVariable(var)) << b.error();
EXPECT_EQ(b.GenerateBinaryExpression(expr->As<ast::BinaryExpression>()), 7u)
<< b.error();
EXPECT_EQ(DumpInstructions(b.types()), R"(%3 = OpTypeInt 32 1
%2 = OpTypePointer Private %3
%4 = OpConstantNull %3
%1 = OpVariable %2 Private %4
)");
EXPECT_EQ(DumpInstructions(b.functions()[0].instructions()),
R"(%5 = OpLoad %3 %1
%6 = OpLoad %3 %1
%7 = OpIAdd %3 %5 %6
)");
}
TEST_F(BuilderTest, IdentifierExpression_NoLoadConst) {
auto* var = GlobalConst("var", ty.i32(), Expr(2));
auto* expr = Add("var", "var");
WrapInFunction(expr);
spirv::Builder& b = Build();
b.push_function(Function{});
ASSERT_TRUE(b.GenerateGlobalVariable(var)) << b.error();
EXPECT_EQ(b.GenerateBinaryExpression(expr->As<ast::BinaryExpression>()), 3u)
<< b.error();
EXPECT_EQ(DumpInstructions(b.types()), R"(%1 = OpTypeInt 32 1
%2 = OpConstant %1 2
)");
EXPECT_EQ(DumpInstructions(b.functions()[0].instructions()),
R"(%3 = OpIAdd %1 %2 %2
)");
}
} // namespace
} // namespace spirv
} // namespace writer
} // namespace tint