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// Copyright 2023 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 "gmock/gmock.h"
#include "src/tint/lang/core/constant/scalar.h"
#include "src/tint/lang/core/ir/block.h"
#include "src/tint/lang/core/ir/constant.h"
#include "src/tint/lang/core/ir/program_test_helper.h"
#include "src/tint/lang/core/ir/var.h"
#include "src/tint/lang/wgsl/ast/case_selector.h"
#include "src/tint/lang/wgsl/ast/int_literal_expression.h"
namespace tint::ir {
namespace {
Value* GlobalVarInitializer(Module& m) {
if (m.root_block->Length() == 0u) {
ADD_FAILURE() << "m.root_block has no instruction";
return nullptr;
}
auto instr = m.root_block->Instructions();
auto* var = instr->As<ir::Var>();
if (!var) {
ADD_FAILURE() << "m.root_block.instructions[0] was not a var";
return nullptr;
}
return var->Initializer();
}
using namespace tint::number_suffixes; // NOLINT
using IR_FromProgramLiteralTest = ProgramTestHelper;
TEST_F(IR_FromProgramLiteralTest, EmitLiteral_Bool_True) {
auto* expr = Expr(true);
GlobalVar("a", ty.bool_(), builtin::AddressSpace::kPrivate, expr);
auto m = Build();
ASSERT_TRUE(m) << (!m ? m.Failure() : "");
auto* init = GlobalVarInitializer(m.Get());
ASSERT_TRUE(Is<Constant>(init));
auto* val = init->As<Constant>()->Value();
EXPECT_TRUE(val->Is<constant::Scalar<bool>>());
EXPECT_TRUE(val->As<constant::Scalar<bool>>()->ValueAs<bool>());
}
TEST_F(IR_FromProgramLiteralTest, EmitLiteral_Bool_False) {
auto* expr = Expr(false);
GlobalVar("a", ty.bool_(), builtin::AddressSpace::kPrivate, expr);
auto m = Build();
ASSERT_TRUE(m) << (!m ? m.Failure() : "");
auto* init = GlobalVarInitializer(m.Get());
ASSERT_TRUE(Is<Constant>(init));
auto* val = init->As<Constant>()->Value();
EXPECT_TRUE(val->Is<constant::Scalar<bool>>());
EXPECT_FALSE(val->As<constant::Scalar<bool>>()->ValueAs<bool>());
}
TEST_F(IR_FromProgramLiteralTest, EmitLiteral_Bool_Deduped) {
GlobalVar("a", ty.bool_(), builtin::AddressSpace::kPrivate, Expr(true));
GlobalVar("b", ty.bool_(), builtin::AddressSpace::kPrivate, Expr(false));
GlobalVar("c", ty.bool_(), builtin::AddressSpace::kPrivate, Expr(true));
GlobalVar("d", ty.bool_(), builtin::AddressSpace::kPrivate, Expr(false));
auto m = Build();
ASSERT_TRUE(m) << (!m ? m.Failure() : "");
auto itr = m.Get().root_block->begin();
auto* var_a = (*itr)->As<ir::Var>();
++itr;
ASSERT_NE(var_a, nullptr);
auto* var_b = (*itr)->As<ir::Var>();
++itr;
ASSERT_NE(var_b, nullptr);
auto* var_c = (*itr)->As<ir::Var>();
++itr;
ASSERT_NE(var_c, nullptr);
auto* var_d = (*itr)->As<ir::Var>();
ASSERT_NE(var_d, nullptr);
ASSERT_EQ(var_a->Initializer(), var_c->Initializer());
ASSERT_EQ(var_b->Initializer(), var_d->Initializer());
ASSERT_NE(var_a->Initializer(), var_b->Initializer());
}
TEST_F(IR_FromProgramLiteralTest, EmitLiteral_F32) {
auto* expr = Expr(1.2_f);
GlobalVar("a", ty.f32(), builtin::AddressSpace::kPrivate, expr);
auto m = Build();
ASSERT_TRUE(m) << (!m ? m.Failure() : "");
auto* init = GlobalVarInitializer(m.Get());
ASSERT_TRUE(Is<Constant>(init));
auto* val = init->As<Constant>()->Value();
EXPECT_TRUE(val->Is<constant::Scalar<f32>>());
EXPECT_EQ(1.2_f, val->As<constant::Scalar<f32>>()->ValueAs<f32>());
}
TEST_F(IR_FromProgramLiteralTest, EmitLiteral_F32_Deduped) {
GlobalVar("a", ty.f32(), builtin::AddressSpace::kPrivate, Expr(1.2_f));
GlobalVar("b", ty.f32(), builtin::AddressSpace::kPrivate, Expr(1.25_f));
GlobalVar("c", ty.f32(), builtin::AddressSpace::kPrivate, Expr(1.2_f));
auto m = Build();
ASSERT_TRUE(m) << (!m ? m.Failure() : "");
auto itr = m.Get().root_block->begin();
auto* var_a = (*itr)->As<ir::Var>();
ASSERT_NE(var_a, nullptr);
++itr;
auto* var_b = (*itr)->As<ir::Var>();
ASSERT_NE(var_b, nullptr);
++itr;
auto* var_c = (*itr)->As<ir::Var>();
ASSERT_NE(var_c, nullptr);
ASSERT_EQ(var_a->Initializer(), var_c->Initializer());
ASSERT_NE(var_a->Initializer(), var_b->Initializer());
}
TEST_F(IR_FromProgramLiteralTest, EmitLiteral_F16) {
Enable(builtin::Extension::kF16);
auto* expr = Expr(1.2_h);
GlobalVar("a", ty.f16(), builtin::AddressSpace::kPrivate, expr);
auto m = Build();
ASSERT_TRUE(m) << (!m ? m.Failure() : "");
auto* init = GlobalVarInitializer(m.Get());
ASSERT_TRUE(Is<Constant>(init));
auto* val = init->As<Constant>()->Value();
EXPECT_TRUE(val->Is<constant::Scalar<f16>>());
EXPECT_EQ(1.2_h, val->As<constant::Scalar<f16>>()->ValueAs<f32>());
}
TEST_F(IR_FromProgramLiteralTest, EmitLiteral_F16_Deduped) {
Enable(builtin::Extension::kF16);
GlobalVar("a", ty.f16(), builtin::AddressSpace::kPrivate, Expr(1.2_h));
GlobalVar("b", ty.f16(), builtin::AddressSpace::kPrivate, Expr(1.25_h));
GlobalVar("c", ty.f16(), builtin::AddressSpace::kPrivate, Expr(1.2_h));
auto m = Build();
ASSERT_TRUE(m) << (!m ? m.Failure() : "");
auto itr = m.Get().root_block->begin();
auto* var_a = (*itr)->As<ir::Var>();
ASSERT_NE(var_a, nullptr);
++itr;
auto* var_b = (*itr)->As<ir::Var>();
ASSERT_NE(var_b, nullptr);
++itr;
auto* var_c = (*itr)->As<ir::Var>();
ASSERT_NE(var_c, nullptr);
ASSERT_EQ(var_a->Initializer(), var_c->Initializer());
ASSERT_NE(var_a->Initializer(), var_b->Initializer());
}
TEST_F(IR_FromProgramLiteralTest, EmitLiteral_I32) {
auto* expr = Expr(-2_i);
GlobalVar("a", ty.i32(), builtin::AddressSpace::kPrivate, expr);
auto m = Build();
ASSERT_TRUE(m) << (!m ? m.Failure() : "");
auto* init = GlobalVarInitializer(m.Get());
ASSERT_TRUE(Is<Constant>(init));
auto* val = init->As<Constant>()->Value();
EXPECT_TRUE(val->Is<constant::Scalar<i32>>());
EXPECT_EQ(-2_i, val->As<constant::Scalar<i32>>()->ValueAs<f32>());
}
TEST_F(IR_FromProgramLiteralTest, EmitLiteral_I32_Deduped) {
GlobalVar("a", ty.i32(), builtin::AddressSpace::kPrivate, Expr(-2_i));
GlobalVar("b", ty.i32(), builtin::AddressSpace::kPrivate, Expr(2_i));
GlobalVar("c", ty.i32(), builtin::AddressSpace::kPrivate, Expr(-2_i));
auto m = Build();
ASSERT_TRUE(m) << (!m ? m.Failure() : "");
auto itr = m.Get().root_block->begin();
auto* var_a = (*itr)->As<ir::Var>();
ASSERT_NE(var_a, nullptr);
++itr;
auto* var_b = (*itr)->As<ir::Var>();
ASSERT_NE(var_b, nullptr);
++itr;
auto* var_c = (*itr)->As<ir::Var>();
ASSERT_NE(var_c, nullptr);
ASSERT_EQ(var_a->Initializer(), var_c->Initializer());
ASSERT_NE(var_a->Initializer(), var_b->Initializer());
}
TEST_F(IR_FromProgramLiteralTest, EmitLiteral_U32) {
auto* expr = Expr(2_u);
GlobalVar("a", ty.u32(), builtin::AddressSpace::kPrivate, expr);
auto m = Build();
ASSERT_TRUE(m) << (!m ? m.Failure() : "");
auto* init = GlobalVarInitializer(m.Get());
ASSERT_TRUE(Is<Constant>(init));
auto* val = init->As<Constant>()->Value();
EXPECT_TRUE(val->Is<constant::Scalar<u32>>());
EXPECT_EQ(2_u, val->As<constant::Scalar<u32>>()->ValueAs<f32>());
}
TEST_F(IR_FromProgramLiteralTest, EmitLiteral_U32_Deduped) {
GlobalVar("a", ty.u32(), builtin::AddressSpace::kPrivate, Expr(2_u));
GlobalVar("b", ty.u32(), builtin::AddressSpace::kPrivate, Expr(3_u));
GlobalVar("c", ty.u32(), builtin::AddressSpace::kPrivate, Expr(2_u));
auto m = Build();
ASSERT_TRUE(m) << (!m ? m.Failure() : "");
auto itr = m.Get().root_block->begin();
auto* var_a = (*itr)->As<ir::Var>();
ASSERT_NE(var_a, nullptr);
++itr;
auto* var_b = (*itr)->As<ir::Var>();
ASSERT_NE(var_b, nullptr);
++itr;
auto* var_c = (*itr)->As<ir::Var>();
ASSERT_NE(var_c, nullptr);
ASSERT_EQ(var_a->Initializer(), var_c->Initializer());
ASSERT_NE(var_a->Initializer(), var_b->Initializer());
}
} // namespace
} // namespace tint::ir