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`GlobalInit` block is now static block within a `SemIR` which will be used to emit initialization instructions for variables in the `Package` scope. inst_block_stack now has additional methods to handle `GlobalInit` block separately, this block can be popped without being finalized allowing to accumulate between all instances of variables. At the end of the `check` phase, if this block is not empty , the function `__global_init` will be added with this block being inserted into it. This block is pushed to `inst_block_scope` at the end `BindName`, allowing instruction to be emitted into it, then popped at the semicolon (VariableDecl). This significantly changes the `SemIR` output, that's why this commit updates a lot of the test cases.
98 lines
4.0 KiB
C++
98 lines
4.0 KiB
C++
// Part of the Carbon Language project, under the Apache License v2.0 with LLVM
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// Exceptions. See /LICENSE for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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#include <gmock/gmock.h>
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#include <gtest/gtest.h>
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#include "common/ostream.h"
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#include "llvm/Support/MemoryBuffer.h"
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#include "llvm/Support/VirtualFileSystem.h"
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#include "testing/base/test_raw_ostream.h"
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#include "toolchain/driver/driver.h"
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#include "toolchain/testing/yaml_test_helpers.h"
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namespace Carbon::SemIR {
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namespace {
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using ::Carbon::Testing::TestRawOstream;
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using ::testing::_;
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using ::testing::AllOf;
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using ::testing::Contains;
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using ::testing::Each;
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using ::testing::ElementsAre;
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using ::testing::IsEmpty;
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using ::testing::MatchesRegex;
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using ::testing::Pair;
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using ::testing::SizeIs;
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namespace Yaml = ::Carbon::Testing::Yaml;
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TEST(SemIRTest, YAML) {
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llvm::vfs::InMemoryFileSystem fs;
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CARBON_CHECK(fs.addFile(
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"test.carbon", /*ModificationTime=*/0,
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llvm::MemoryBuffer::getMemBuffer("fn F() { var x: i32 = 0; return; }")));
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TestRawOstream print_stream;
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Driver d(fs, print_stream, llvm::errs());
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d.RunCommand(
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{"compile", "--phase=check", "--dump-raw-sem-ir", "test.carbon"});
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// Matches the ID of an instruction. Instruction counts may change as various
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// support changes, so this code is only doing loose structural checks.
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auto int_id = Yaml::Scalar(MatchesRegex(R"(int\d+)"));
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auto inst_id = Yaml::Scalar(MatchesRegex(R"(inst\+\d+)"));
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auto constant_id =
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Yaml::Scalar(MatchesRegex(R"((template|symbolic) inst(\w+|\+\d+))"));
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auto inst_builtin = Yaml::Scalar(MatchesRegex(R"(inst\w+)"));
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auto type_id = Yaml::Scalar(MatchesRegex(R"(type\d+)"));
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auto type_builtin = Pair(
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type_id, Yaml::Mapping(ElementsAre(Pair("constant", constant_id),
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Pair("value_rep", Yaml::Mapping(_)))));
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auto file = Yaml::Mapping(ElementsAre(
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Pair("import_irs_size", "1"),
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Pair("name_scopes", Yaml::Mapping(SizeIs(1))),
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Pair("bind_names", Yaml::Mapping(SizeIs(1))),
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Pair("functions", Yaml::Mapping(SizeIs(1))),
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Pair("classes", Yaml::Mapping(SizeIs(0))),
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Pair("types", Yaml::Mapping(Each(type_builtin))),
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Pair("type_blocks", Yaml::Mapping(IsEmpty())),
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Pair("insts",
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Yaml::Mapping(AllOf(
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Each(Key(inst_id)),
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// kind is required, other parts are optional.
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Each(Pair(_, Yaml::Mapping(Contains(Pair("kind", _))))),
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// A 0-arg instruction.
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Contains(
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Pair(_, Yaml::Mapping(ElementsAre(Pair("kind", "Return"))))),
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// A 1-arg instruction.
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Contains(
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Pair(_, Yaml::Mapping(ElementsAre(Pair("kind", "IntLiteral"),
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Pair("arg0", int_id),
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Pair("type", type_id))))),
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// A 2-arg instruction.
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Contains(Pair(
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_, Yaml::Mapping(ElementsAre(Pair("kind", "Assign"),
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Pair("arg0", inst_id),
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Pair("arg1", inst_id)))))))),
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Pair("constant_values",
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Yaml::Mapping(AllOf(Each(Pair(inst_id, constant_id))))),
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// This production has only two instruction blocks.
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Pair("inst_blocks",
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Yaml::Mapping(ElementsAre(
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Pair("empty", Yaml::Mapping(IsEmpty())),
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Pair("exports", Yaml::Mapping(Each(Pair(_, inst_id)))),
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Pair("global_init", Yaml::Mapping(IsEmpty())),
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Pair("block3", Yaml::Mapping(Each(Pair(_, inst_id)))),
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Pair("block4", Yaml::Mapping(Each(Pair(_, inst_id)))))))));
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auto root = Yaml::Sequence(ElementsAre(Yaml::Mapping(
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ElementsAre(Pair("filename", "test.carbon"), Pair("sem_ir", file)))));
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EXPECT_THAT(Yaml::Value::FromText(print_stream.TakeStr()), IsYaml(root));
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}
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} // namespace
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} // namespace Carbon::SemIR
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