mirror of
https://github.com/carbon-language/carbon-lang.git
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Chandler CarruthandGeoff Romer
1459332031
This adds support for most of the remaining LLVM command line tools using a generic, generated wrapper. The subcommand interface for these is (much) less interesting than our other subcommands, but it gives us a uniform and consistent layer. Note that I structured these as nested sub-sub-commands below an `llvm` subcommand because of an expectation that we will want to add more, and ones that don't use this generic layer. Some concrete future work: - Add the `opt` and `llc` tools as subcommands for easier debugging and experimentation with LLVM IR output from Carbon's toolchain. - Potentially sink `lld` below the `llvm` layer given that it has significantly less user visibility than commands like `clang`. Unfortunately, the current driver subcommand APIs make nested subcommands awkward. I've added a somewhat rough hack here to let the LLVM tools go in, but there are some TODOs that I want to address in a follow-up that works to adjust the structure of this code to be more conducive to nesting like this. Depends on #5048 -- only the last commit should be reviewed here. --------- Co-authored-by: Geoff Romer <gromer@google.com>
97 lines
2.6 KiB
C++
97 lines
2.6 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 "toolchain/driver/llvm_runner.h"
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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 "common/raw_string_ostream.h"
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#include "llvm/ADT/ScopeExit.h"
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#include "llvm/Support/FormatVariadic.h"
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#include "testing/base/capture_std_streams.h"
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#include "testing/base/global_exe_path.h"
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namespace Carbon {
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namespace {
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using ::testing::HasSubstr;
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using ::testing::StrEq;
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TEST(LLVMRunnerTest, Version) {
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RawStringOstream test_os;
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const auto install_paths =
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InstallPaths::MakeForBazelRunfiles(Testing::GetExePath());
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LLVMRunner runner(&install_paths, &test_os);
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std::string out;
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std::string err;
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for (LLVMTool tool : LLVMTool::Tools) {
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std::string test_flag = "--version";
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std::string expected_out = "LLVM version";
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// Handle any special requirements for specific tools.
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switch (tool) {
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case LLVMTool::Addr2Line:
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case LLVMTool::BitcodeStrip:
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case LLVMTool::Cgdata:
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case LLVMTool::DebuginfodFind:
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case LLVMTool::Dwp:
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case LLVMTool::Gsymutil:
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case LLVMTool::Ifs:
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case LLVMTool::InstallNameTool:
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case LLVMTool::Lipo:
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case LLVMTool::Objcopy:
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case LLVMTool::Profdata:
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case LLVMTool::Sancov:
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case LLVMTool::Strip:
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case LLVMTool::Symbolizer:
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case LLVMTool::Windres:
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// TODO: These tools are not well behaved when invoked as a library,
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// typically directly calling `exit` on some or all code paths. We
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// should see if they can be fixed upstream and re-enable testing.
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continue;
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case LLVMTool::Dlltool:
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case LLVMTool::Rc:
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// No good flags to generically test these tools.
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continue;
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case LLVMTool::Lib:
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test_flag = "/help";
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expected_out = "LLVM Lib";
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break;
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case LLVMTool::Ml:
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test_flag = "/help";
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expected_out = "LLVM MASM Assembler";
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break;
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case LLVMTool::Mt:
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test_flag = "/help";
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expected_out = "Manifest Tool";
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break;
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default:
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break;
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}
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EXPECT_TRUE(Testing::CallWithCapturedOutput(
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out, err, [&] { return runner.Run(tool, {test_flag}); }));
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// The arguments to the LLVM tool should be part of the verbose log.
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EXPECT_THAT(test_os.TakeStr(), HasSubstr(test_flag));
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// Nothing should print to stderr here.
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EXPECT_THAT(err, StrEq(""));
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EXPECT_THAT(out, HasSubstr(expected_out));
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}
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}
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} // namespace
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} // namespace Carbon
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