1 files changed, 186 insertions, 0 deletions
diff --git a/contrib/llvm-project/llvm/lib/AsmParser/Parser.cpp b/contrib/llvm-project/llvm/lib/AsmParser/Parser.cpp
new file mode 100644
index 000000000000..b13c6237f411
--- /dev/null
+++ b/contrib/llvm-project/llvm/lib/AsmParser/Parser.cpp
@@ -0,0 +1,186 @@
+//===- Parser.cpp - Main dispatch module for the Parser library -----------===//
+//
+// 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
+//
+//===----------------------------------------------------------------------===//
+//
+// This library implements the functionality defined in llvm/AsmParser/Parser.h
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/AsmParser/Parser.h"
+#include "LLParser.h"
+#include "llvm/ADT/STLExtras.h"
+#include "llvm/IR/Module.h"
+#include "llvm/IR/ModuleSummaryIndex.h"
+#include "llvm/Support/MemoryBuffer.h"
+#include "llvm/Support/SourceMgr.h"
+#include "llvm/Support/raw_ostream.h"
+#include <cstring>
+#include <system_error>
+using namespace llvm;
+
+bool llvm::parseAssemblyInto(MemoryBufferRef F, Module *M,
+                             ModuleSummaryIndex *Index, SMDiagnostic &Err,
+                             SlotMapping *Slots, bool UpgradeDebugInfo,
+                             StringRef DataLayoutString) {
+  SourceMgr SM;
+  std::unique_ptr<MemoryBuffer> Buf = MemoryBuffer::getMemBuffer(F);
+  SM.AddNewSourceBuffer(std::move(Buf), SMLoc());
+
+  LLVMContext Context;
+  return LLParser(F.getBuffer(), SM, Err, M, Index,
+                  M ? M->getContext() : Context, Slots, UpgradeDebugInfo,
+                  DataLayoutString)
+      .Run();
+}
+
+std::unique_ptr<Module>
+llvm::parseAssembly(MemoryBufferRef F, SMDiagnostic &Err, LLVMContext &Context,
+                    SlotMapping *Slots, bool UpgradeDebugInfo,
+                    StringRef DataLayoutString) {
+  std::unique_ptr<Module> M =
+      make_unique<Module>(F.getBufferIdentifier(), Context);
+
+  if (parseAssemblyInto(F, M.get(), nullptr, Err, Slots, UpgradeDebugInfo,
+                        DataLayoutString))
+    return nullptr;
+
+  return M;
+}
+
+std::unique_ptr<Module>
+llvm::parseAssemblyFile(StringRef Filename, SMDiagnostic &Err,
+                        LLVMContext &Context, SlotMapping *Slots,
+                        bool UpgradeDebugInfo, StringRef DataLayoutString) {
+  ErrorOr<std::unique_ptr<MemoryBuffer>> FileOrErr =
+      MemoryBuffer::getFileOrSTDIN(Filename);
+  if (std::error_code EC = FileOrErr.getError()) {
+    Err = SMDiagnostic(Filename, SourceMgr::DK_Error,
+                       "Could not open input file: " + EC.message());
+    return nullptr;
+  }
+
+  return parseAssembly(FileOrErr.get()->getMemBufferRef(), Err, Context, Slots,
+                       UpgradeDebugInfo, DataLayoutString);
+}
+
+ParsedModuleAndIndex llvm::parseAssemblyWithIndex(
+    MemoryBufferRef F, SMDiagnostic &Err, LLVMContext &Context,
+    SlotMapping *Slots, bool UpgradeDebugInfo, StringRef DataLayoutString) {
+  std::unique_ptr<Module> M =
+      make_unique<Module>(F.getBufferIdentifier(), Context);
+  std::unique_ptr<ModuleSummaryIndex> Index =
+      make_unique<ModuleSummaryIndex>(/*HaveGVs=*/true);
+
+  if (parseAssemblyInto(F, M.get(), Index.get(), Err, Slots, UpgradeDebugInfo,
+                        DataLayoutString))
+    return {nullptr, nullptr};
+
+  return {std::move(M), std::move(Index)};
+}
+
+ParsedModuleAndIndex llvm::parseAssemblyFileWithIndex(
+    StringRef Filename, SMDiagnostic &Err, LLVMContext &Context,
+    SlotMapping *Slots, bool UpgradeDebugInfo, StringRef DataLayoutString) {
+  ErrorOr<std::unique_ptr<MemoryBuffer>> FileOrErr =
+      MemoryBuffer::getFileOrSTDIN(Filename);
+  if (std::error_code EC = FileOrErr.getError()) {
+    Err = SMDiagnostic(Filename, SourceMgr::DK_Error,
+                       "Could not open input file: " + EC.message());
+    return {nullptr, nullptr};
+  }
+
+  return parseAssemblyWithIndex(FileOrErr.get()->getMemBufferRef(), Err,
+                                Context, Slots, UpgradeDebugInfo,
+                                DataLayoutString);
+}
+
+std::unique_ptr<Module>
+llvm::parseAssemblyString(StringRef AsmString, SMDiagnostic &Err,
+                          LLVMContext &Context, SlotMapping *Slots,
+                          bool UpgradeDebugInfo, StringRef DataLayoutString) {
+  MemoryBufferRef F(AsmString, "<string>");
+  return parseAssembly(F, Err, Context, Slots, UpgradeDebugInfo,
+                       DataLayoutString);
+}
+
+static bool parseSummaryIndexAssemblyInto(MemoryBufferRef F,
+                                          ModuleSummaryIndex &Index,
+                                          SMDiagnostic &Err) {
+  SourceMgr SM;
+  std::unique_ptr<MemoryBuffer> Buf = MemoryBuffer::getMemBuffer(F);
+  SM.AddNewSourceBuffer(std::move(Buf), SMLoc());
+
+  // The parser holds a reference to a context that is unused when parsing the
+  // index, but we need to initialize it.
+  LLVMContext unusedContext;
+  return LLParser(F.getBuffer(), SM, Err, nullptr, &Index, unusedContext).Run();
+}
+
+std::unique_ptr<ModuleSummaryIndex>
+llvm::parseSummaryIndexAssembly(MemoryBufferRef F, SMDiagnostic &Err) {
+  std::unique_ptr<ModuleSummaryIndex> Index =
+      make_unique<ModuleSummaryIndex>(/*HaveGVs=*/false);
+
+  if (parseSummaryIndexAssemblyInto(F, *Index, Err))
+    return nullptr;
+
+  return Index;
+}
+
+std::unique_ptr<ModuleSummaryIndex>
+llvm::parseSummaryIndexAssemblyFile(StringRef Filename, SMDiagnostic &Err) {
+  ErrorOr<std::unique_ptr<MemoryBuffer>> FileOrErr =
+      MemoryBuffer::getFileOrSTDIN(Filename);
+  if (std::error_code EC = FileOrErr.getError()) {
+    Err = SMDiagnostic(Filename, SourceMgr::DK_Error,
+                       "Could not open input file: " + EC.message());
+    return nullptr;
+  }
+
+  return parseSummaryIndexAssembly(FileOrErr.get()->getMemBufferRef(), Err);
+}
+
+Constant *llvm::parseConstantValue(StringRef Asm, SMDiagnostic &Err,
+                                   const Module &M, const SlotMapping *Slots) {
+  SourceMgr SM;
+  std::unique_ptr<MemoryBuffer> Buf = MemoryBuffer::getMemBuffer(Asm);
+  SM.AddNewSourceBuffer(std::move(Buf), SMLoc());
+  Constant *C;
+  if (LLParser(Asm, SM, Err, const_cast<Module *>(&M), nullptr, M.getContext())
+          .parseStandaloneConstantValue(C, Slots))
+    return nullptr;
+  return C;
+}
+
+Type *llvm::parseType(StringRef Asm, SMDiagnostic &Err, const Module &M,
+                      const SlotMapping *Slots) {
+  unsigned Read;
+  Type *Ty = parseTypeAtBeginning(Asm, Read, Err, M, Slots);
+  if (!Ty)
+    return nullptr;
+  if (Read != Asm.size()) {
+    SourceMgr SM;
+    std::unique_ptr<MemoryBuffer> Buf = MemoryBuffer::getMemBuffer(Asm);
+    SM.AddNewSourceBuffer(std::move(Buf), SMLoc());
+    Err = SM.GetMessage(SMLoc::getFromPointer(Asm.begin() + Read),
+                        SourceMgr::DK_Error, "expected end of string");
+    return nullptr;
+  }
+  return Ty;
+}
+Type *llvm::parseTypeAtBeginning(StringRef Asm, unsigned &Read,
+                                 SMDiagnostic &Err, const Module &M,
+                                 const SlotMapping *Slots) {
+  SourceMgr SM;
+  std::unique_ptr<MemoryBuffer> Buf = MemoryBuffer::getMemBuffer(Asm);
+  SM.AddNewSourceBuffer(std::move(Buf), SMLoc());
+  Type *Ty;
+  if (LLParser(Asm, SM, Err, const_cast<Module *>(&M), nullptr, M.getContext())
+          .parseTypeAtBeginning(Ty, Read, Slots))
+    return nullptr;
+  return Ty;
+}