Jake Ehrlich
773f8d53ed
This is a reland of b71d2d9996
Original change's description:
> [llvm] Add initial scaffolding
>
> This change adds the gclient and GN changes needed to build
> an executable using LLVM in the Dart tree as well as a basic
> testing framework based on llvm-lit.
>
> Change-Id: I9009a98ff95043cc3754966f31697ba7f1712310
> Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/106434
> Commit-Queue: Jake Ehrlich <jakehehrlich@google.com>
> Reviewed-by: Alexander Thomas <athom@google.com>
> Reviewed-by: Vyacheslav Egorov <vegorov@google.com>
Change-Id: I73cd24455c373bcc4d0f5675af6a3b1e0f947f67
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/110683
Reviewed-by: Vyacheslav Egorov <vegorov@google.com>
77 lines
2.2 KiB
C++
77 lines
2.2 KiB
C++
// Copyright (c) 2019, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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#include <stdio.h>
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#include <map>
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#include <regex>
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#include "llvm/ADT/StringRef.h"
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#include "llvm/Support/LineIterator.h"
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#include "llvm/Support/MemoryBuffer.h"
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#include "llvm/Support/Path.h"
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#include "llvm/Support/Regex.h"
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#include "llvm/Support/WithColor.h"
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namespace {
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using namespace llvm;
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struct Config {
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StringRef filename;
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StringRef out_dir;
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};
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StringMap<std::string> GetSubstitutions(const Config& config) {
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// Compute all of our strings needed for substitutions.
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StringRef test_dir = sys::path::parent_path(config.filename);
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StringRef basename = sys::path::filename(config.filename);
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SmallString<128> tmp_file;
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sys::path::append(tmp_file, sys::path::Style::native, config.out_dir,
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basename + ".tmp");
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SmallString<128> codegen;
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sys::path::append(codegen, sys::path::Style::native, LIT_BINARY_DIR,
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"codegen");
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SmallString<128> bit;
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sys::path::append(bit, sys::path::Style::native, LIT_BINARY_DIR, "bit");
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// Set up our substitutions.
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StringMap<std::string> subs;
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subs["s"] = config.filename.str();
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subs["p"] = test_dir.str();
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subs["P"] = test_dir.str();
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subs["t"] = tmp_file.str().str();
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subs["codegen"] = codegen.str().str();
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subs["bit"] = bit.str().str();
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return subs;
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}
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std::string PerformSubstitutions(const StringMap<std::string>& subs,
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StringRef string) {
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std::string out = string.str();
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for (const auto& sub : subs) {
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std::string key = (Twine("%") + sub.getKeyData()).str();
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size_t pos = 0;
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while ((pos = out.find(key, pos)) != std::string::npos) {
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if (pos != 0 && out[pos - 1] == '%') {
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pos += key.size();
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continue;
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}
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out.replace(pos, key.size(), sub.getValue());
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pos += sub.second.size();
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}
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}
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return out;
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}
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Optional<std::string> GetCommand(StringRef line) {
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static Regex run_line("^;[ ]*RUN:[ ]*(.*)$");
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SmallVector<StringRef, 2> cmd;
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if (!run_line.match(line, &cmd)) return Optional<std::string>{};
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assert(cmd.size() == 2);
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return cmd[1].str();
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}
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} // namespace
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