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Copy pathglbs.cpp
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46 lines (39 loc) · 1.36 KB
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/*
* Copyright 2025 WebAssembly Community Group participants
*
* 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 "ir/glbs.h"
#include "wasm-type.h"
#include "wasm.h"
#include "gtest/gtest.h"
using namespace wasm;
TEST(GLBsTest, Basics) {
GLBFinder finder;
// Nothing noted yet.
EXPECT_FALSE(finder.noted());
EXPECT_EQ(finder.getGLB(), Type::unreachable);
// Note a type.
Type anyref = Type(HeapType::any, Nullable);
finder.note(anyref);
EXPECT_TRUE(finder.noted());
EXPECT_EQ(finder.getGLB(), anyref);
// Note another, leaving the more-refined GLB.
Type refAny = Type(HeapType::any, NonNullable);
finder.note(refAny);
EXPECT_TRUE(finder.noted());
EXPECT_EQ(finder.getGLB(), refAny);
// Note unreachable, which changes nothing (we ignore unreachable inputs).
finder.note(Type::unreachable);
EXPECT_EQ(finder.getGLB(), refAny);
}