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// 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
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// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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#include "src/tint/lang/core/ir/access.h"
#include "gmock/gmock.h"
#include "gtest/gtest.h"
#include "src/tint/lang/core/ir/ir_helper_test.h"
using namespace tint::core::fluent_types; // NOLINT
using namespace tint::core::number_suffixes; // NOLINT
namespace tint::core::ir {
namespace {
using IR_AccessTest = IRTestHelper;
TEST_F(IR_AccessTest, SetsUsage) {
auto* type = ty.ptr<function, i32>();
auto* var = b.Var(type);
auto* idx = b.Constant(u32(1));
auto* a = b.Access(ty.i32(), var, idx);
EXPECT_THAT(var->Result(0)->Usages(), testing::UnorderedElementsAre(Usage{a, 0u}));
EXPECT_THAT(idx->Usages(), testing::UnorderedElementsAre(Usage{a, 1u}));
}
TEST_F(IR_AccessTest, Result) {
auto* type = ty.ptr<function, i32>();
auto* var = b.Var(type);
auto* idx = b.Constant(u32(1));
auto* a = b.Access(ty.i32(), var, idx);
EXPECT_EQ(a->Results().Length(), 1u);
EXPECT_TRUE(a->Result(0)->Is<InstructionResult>());
EXPECT_EQ(a, a->Result(0)->Instruction());
}
TEST_F(IR_AccessTest, Fail_NullType) {
EXPECT_DEATH_IF_SUPPORTED(
{
Module mod;
Builder b{mod};
auto* ty = (mod.Types().ptr<function, i32>());
auto* var = b.Var(ty);
b.Access(nullptr, var, u32(1));
},
"");
}
TEST_F(IR_AccessTest, Clone) {
auto* type = ty.ptr<function, i32>();
auto* var = b.Var(type);
auto* idx1 = b.Constant(u32(1));
auto* idx2 = b.Constant(u32(2));
auto* a = b.Access(type, var, idx1, idx2);
auto* new_a = clone_ctx.Clone(a);
EXPECT_NE(a, new_a);
EXPECT_NE(a->Result(0), new_a->Result(0));
EXPECT_EQ(type, new_a->Result(0)->Type());
EXPECT_NE(nullptr, new_a->Object());
EXPECT_EQ(a->Object(), new_a->Object());
auto indices = new_a->Indices();
EXPECT_EQ(2u, indices.Length());
auto* val0 = indices[0]->As<Constant>()->Value();
EXPECT_EQ(1_u, val0->As<core::constant::Scalar<u32>>()->ValueAs<u32>());
auto* val1 = indices[1]->As<Constant>()->Value();
EXPECT_EQ(2_u, val1->As<core::constant::Scalar<u32>>()->ValueAs<u32>());
}
TEST_F(IR_AccessTest, CloneNoIndices) {
auto* type = ty.ptr<function, i32>();
auto* var = b.Var(type);
auto* a = b.Access(type, var);
auto* new_a = clone_ctx.Clone(a);
auto indices = new_a->Indices();
EXPECT_EQ(0u, indices.Length());
}
} // namespace
} // namespace tint::core::ir