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f12054ea2a
This separates out the usage of the built module from the construction of the module. Previously, we'd happily interleave generator testing with module construction statements. Once the AST / Program is made immutable, this will no longer be possible. Bug: tint:390 Change-Id: Ib4538228e93ca816f5bb796d024f021116609213 Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/38360 Reviewed-by: dan sinclair <dsinclair@chromium.org> Commit-Queue: Ben Clayton <bclayton@google.com>
75 lines
2.1 KiB
C++
75 lines
2.1 KiB
C++
// Copyright 2020 The Tint Authors.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "gtest/gtest.h"
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#include "src/ast/bitcast_expression.h"
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#include "src/ast/float_literal.h"
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#include "src/ast/module.h"
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#include "src/ast/scalar_constructor_expression.h"
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#include "src/type/f32_type.h"
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#include "src/type/u32_type.h"
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#include "src/type_determiner.h"
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#include "src/writer/spirv/builder.h"
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#include "src/writer/spirv/spv_dump.h"
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#include "src/writer/spirv/test_helper.h"
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namespace tint {
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namespace writer {
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namespace spirv {
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namespace {
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using BuilderTest = TestHelper;
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TEST_F(BuilderTest, Bitcast) {
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auto* bitcast = create<ast::BitcastExpression>(ty.u32, Expr(2.4f));
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ASSERT_TRUE(td.DetermineResultType(bitcast)) << td.error();
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spirv::Builder& b = Build();
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b.push_function(Function{});
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EXPECT_EQ(b.GenerateBitcastExpression(bitcast), 1u);
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EXPECT_EQ(DumpInstructions(b.types()), R"(%2 = OpTypeInt 32 0
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%3 = OpTypeFloat 32
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%4 = OpConstant %3 2.4000001
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)");
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EXPECT_EQ(DumpInstructions(b.functions()[0].instructions()),
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R"(%1 = OpBitcast %2 %4
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)");
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}
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TEST_F(BuilderTest, Bitcast_DuplicateType) {
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auto* bitcast = create<ast::BitcastExpression>(ty.f32, Expr(2.4f));
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ASSERT_TRUE(td.DetermineResultType(bitcast)) << td.error();
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spirv::Builder& b = Build();
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b.push_function(Function{});
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EXPECT_EQ(b.GenerateBitcastExpression(bitcast), 1u);
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EXPECT_EQ(DumpInstructions(b.types()), R"(%2 = OpTypeFloat 32
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%3 = OpConstant %2 2.4000001
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)");
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EXPECT_EQ(DumpInstructions(b.functions()[0].instructions()),
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R"(%1 = OpCopyObject %2 %3
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)");
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}
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} // namespace
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} // namespace spirv
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} // namespace writer
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} // namespace tint
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