aboutsummaryrefslogtreecommitdiffstats
path: root/contrib/libs/llvm16/lib/TableGen/Main.cpp
diff options
context:
space:
mode:
authorvitalyisaev <vitalyisaev@yandex-team.com>2023-06-29 10:00:50 +0300
committervitalyisaev <vitalyisaev@yandex-team.com>2023-06-29 10:00:50 +0300
commit6ffe9e53658409f212834330e13564e4952558f6 (patch)
tree85b1e00183517648b228aafa7c8fb07f5276f419 /contrib/libs/llvm16/lib/TableGen/Main.cpp
parent726057070f9c5a91fc10fde0d5024913d10f1ab9 (diff)
downloadydb-6ffe9e53658409f212834330e13564e4952558f6.tar.gz
YQ Connector: support managed ClickHouse
Со стороны dqrun можно обратиться к инстансу коннектора, который работает на streaming стенде, и извлечь данные из облачного CH.
Diffstat (limited to 'contrib/libs/llvm16/lib/TableGen/Main.cpp')
-rw-r--r--contrib/libs/llvm16/lib/TableGen/Main.cpp164
1 files changed, 164 insertions, 0 deletions
diff --git a/contrib/libs/llvm16/lib/TableGen/Main.cpp b/contrib/libs/llvm16/lib/TableGen/Main.cpp
new file mode 100644
index 0000000000..1d5f130737
--- /dev/null
+++ b/contrib/libs/llvm16/lib/TableGen/Main.cpp
@@ -0,0 +1,164 @@
+//===- Main.cpp - Top-Level TableGen implementation -----------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+//
+// TableGen is a tool which can be used to build up a description of something,
+// then invoke one or more "tablegen backends" to emit information about the
+// description in some predefined format. In practice, this is used by the LLVM
+// code generators to automate generation of a code generator through a
+// high-level description of the target.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/TableGen/Main.h"
+#include "TGParser.h"
+#include "llvm/Support/CommandLine.h"
+#include "llvm/Support/FileSystem.h"
+#include "llvm/Support/MemoryBuffer.h"
+#include "llvm/Support/ToolOutputFile.h"
+#include "llvm/TableGen/Error.h"
+#include "llvm/TableGen/Record.h"
+#include <algorithm>
+#include <system_error>
+using namespace llvm;
+
+static cl::opt<std::string>
+OutputFilename("o", cl::desc("Output filename"), cl::value_desc("filename"),
+ cl::init("-"));
+
+static cl::opt<std::string>
+DependFilename("d",
+ cl::desc("Dependency filename"),
+ cl::value_desc("filename"),
+ cl::init(""));
+
+static cl::opt<std::string>
+InputFilename(cl::Positional, cl::desc("<input file>"), cl::init("-"));
+
+static cl::list<std::string>
+IncludeDirs("I", cl::desc("Directory of include files"),
+ cl::value_desc("directory"), cl::Prefix);
+
+static cl::list<std::string>
+MacroNames("D", cl::desc("Name of the macro to be defined"),
+ cl::value_desc("macro name"), cl::Prefix);
+
+static cl::opt<bool>
+WriteIfChanged("write-if-changed", cl::desc("Only write output if it changed"));
+
+static cl::opt<bool>
+TimePhases("time-phases", cl::desc("Time phases of parser and backend"));
+
+static cl::opt<bool> NoWarnOnUnusedTemplateArgs(
+ "no-warn-on-unused-template-args",
+ cl::desc("Disable unused template argument warnings."));
+
+static int reportError(const char *ProgName, Twine Msg) {
+ errs() << ProgName << ": " << Msg;
+ errs().flush();
+ return 1;
+}
+
+/// Create a dependency file for `-d` option.
+///
+/// This functionality is really only for the benefit of the build system.
+/// It is similar to GCC's `-M*` family of options.
+static int createDependencyFile(const TGParser &Parser, const char *argv0) {
+ if (OutputFilename == "-")
+ return reportError(argv0, "the option -d must be used together with -o\n");
+
+ std::error_code EC;
+ ToolOutputFile DepOut(DependFilename, EC, sys::fs::OF_Text);
+ if (EC)
+ return reportError(argv0, "error opening " + DependFilename + ":" +
+ EC.message() + "\n");
+ DepOut.os() << OutputFilename << ":";
+ for (const auto &Dep : Parser.getDependencies()) {
+ DepOut.os() << ' ' << Dep;
+ }
+ DepOut.os() << "\n";
+ DepOut.keep();
+ return 0;
+}
+
+int llvm::TableGenMain(const char *argv0, TableGenMainFn *MainFn) {
+ RecordKeeper Records;
+
+ if (TimePhases)
+ Records.startPhaseTiming();
+
+ // Parse the input file.
+
+ Records.startTimer("Parse, build records");
+ ErrorOr<std::unique_ptr<MemoryBuffer>> FileOrErr =
+ MemoryBuffer::getFileOrSTDIN(InputFilename, /*IsText=*/true);
+ if (std::error_code EC = FileOrErr.getError())
+ return reportError(argv0, "Could not open input file '" + InputFilename +
+ "': " + EC.message() + "\n");
+
+ Records.saveInputFilename(InputFilename);
+
+ // Tell SrcMgr about this buffer, which is what TGParser will pick up.
+ SrcMgr.AddNewSourceBuffer(std::move(*FileOrErr), SMLoc());
+
+ // Record the location of the include directory so that the lexer can find
+ // it later.
+ SrcMgr.setIncludeDirs(IncludeDirs);
+
+ TGParser Parser(SrcMgr, MacroNames, Records, NoWarnOnUnusedTemplateArgs);
+
+ if (Parser.ParseFile())
+ return 1;
+ Records.stopTimer();
+
+ // Write output to memory.
+ Records.startBackendTimer("Backend overall");
+ std::string OutString;
+ raw_string_ostream Out(OutString);
+ unsigned status = MainFn(Out, Records);
+ Records.stopBackendTimer();
+ if (status)
+ return 1;
+
+ // Always write the depfile, even if the main output hasn't changed.
+ // If it's missing, Ninja considers the output dirty. If this was below
+ // the early exit below and someone deleted the .inc.d file but not the .inc
+ // file, tablegen would never write the depfile.
+ if (!DependFilename.empty()) {
+ if (int Ret = createDependencyFile(Parser, argv0))
+ return Ret;
+ }
+
+ Records.startTimer("Write output");
+ bool WriteFile = true;
+ if (WriteIfChanged) {
+ // Only updates the real output file if there are any differences.
+ // This prevents recompilation of all the files depending on it if there
+ // aren't any.
+ if (auto ExistingOrErr =
+ MemoryBuffer::getFile(OutputFilename, /*IsText=*/true))
+ if (std::move(ExistingOrErr.get())->getBuffer() == Out.str())
+ WriteFile = false;
+ }
+ if (WriteFile) {
+ std::error_code EC;
+ ToolOutputFile OutFile(OutputFilename, EC, sys::fs::OF_Text);
+ if (EC)
+ return reportError(argv0, "error opening " + OutputFilename + ": " +
+ EC.message() + "\n");
+ OutFile.os() << Out.str();
+ if (ErrorsPrinted == 0)
+ OutFile.keep();
+ }
+
+ Records.stopTimer();
+ Records.stopPhaseTiming();
+
+ if (ErrorsPrinted > 0)
+ return reportError(argv0, Twine(ErrorsPrinted) + " errors.\n");
+ return 0;
+}