1 files changed, 130 insertions, 0 deletions
diff --git a/contrib/llvm/lib/VMCore/LLVMContext.cpp b/contrib/llvm/lib/VMCore/LLVMContext.cpp
new file mode 100644
index 0000000..4d61363
--- /dev/null
+++ b/contrib/llvm/lib/VMCore/LLVMContext.cpp
@@ -0,0 +1,130 @@
+//===-- LLVMContext.cpp - Implement LLVMContext -----------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+//  This file implements LLVMContext, as a wrapper around the opaque
+//  class LLVMContextImpl.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/LLVMContext.h"
+#include "llvm/Metadata.h"
+#include "llvm/Constants.h"
+#include "llvm/Instruction.h"
+#include "llvm/Support/ManagedStatic.h"
+#include "llvm/Support/SourceMgr.h"
+#include "LLVMContextImpl.h"
+using namespace llvm;
+
+static ManagedStatic<LLVMContext> GlobalContext;
+
+LLVMContext& llvm::getGlobalContext() {
+  return *GlobalContext;
+}
+
+LLVMContext::LLVMContext() : pImpl(new LLVMContextImpl(*this)) {
+  // Create the first metadata kind, which is always 'dbg'.
+  unsigned DbgID = getMDKindID("dbg");
+  assert(DbgID == MD_dbg && "dbg kind id drifted"); (void)DbgID;
+}
+LLVMContext::~LLVMContext() { delete pImpl; }
+
+//===----------------------------------------------------------------------===//
+// Recoverable Backend Errors
+//===----------------------------------------------------------------------===//
+
+void LLVMContext::setInlineAsmDiagnosticHandler(void *DiagHandler, 
+                                                void *DiagContext) {
+  pImpl->InlineAsmDiagHandler = DiagHandler;
+  pImpl->InlineAsmDiagContext = DiagContext;
+}
+
+/// getInlineAsmDiagnosticHandler - Return the diagnostic handler set by
+/// setInlineAsmDiagnosticHandler.
+void *LLVMContext::getInlineAsmDiagnosticHandler() const {
+  return pImpl->InlineAsmDiagHandler;
+}
+
+/// getInlineAsmDiagnosticContext - Return the diagnostic context set by
+/// setInlineAsmDiagnosticHandler.
+void *LLVMContext::getInlineAsmDiagnosticContext() const {
+  return pImpl->InlineAsmDiagContext;
+}
+
+void LLVMContext::emitError(StringRef ErrorStr) {
+  emitError(0U, ErrorStr);
+}
+
+void LLVMContext::emitError(const Instruction *I, StringRef ErrorStr) {
+  unsigned LocCookie = 0;
+  if (const MDNode *SrcLoc = I->getMetadata("srcloc")) {
+    if (SrcLoc->getNumOperands() != 0)
+      if (const ConstantInt *CI = dyn_cast<ConstantInt>(SrcLoc->getOperand(0)))
+        LocCookie = CI->getZExtValue();
+  }
+  return emitError(LocCookie, ErrorStr);
+}
+
+void LLVMContext::emitError(unsigned LocCookie, StringRef ErrorStr) {
+  // If there is no error handler installed, just print the error and exit.
+  if (pImpl->InlineAsmDiagHandler == 0) {
+    errs() << "error: " << ErrorStr << "\n";
+    exit(1);
+  }
+  
+  // If we do have an error handler, we can report the error and keep going.
+  SMDiagnostic Diag("", "error: " + ErrorStr.str());
+  
+  ((SourceMgr::DiagHandlerTy)(intptr_t)pImpl->InlineAsmDiagHandler)
+      (Diag, pImpl->InlineAsmDiagContext, LocCookie);
+  
+}
+
+//===----------------------------------------------------------------------===//
+// Metadata Kind Uniquing
+//===----------------------------------------------------------------------===//
+
+#ifndef NDEBUG
+/// isValidName - Return true if Name is a valid custom metadata handler name.
+static bool isValidName(StringRef MDName) {
+  if (MDName.empty())
+    return false;
+  
+  if (!isalpha(MDName[0]))
+    return false;
+  
+  for (StringRef::iterator I = MDName.begin() + 1, E = MDName.end(); I != E;
+       ++I) {
+    if (!isalnum(*I) && *I != '_' && *I != '-' && *I != '.')
+      return false;
+  }
+  return true;
+}
+#endif
+
+/// getMDKindID - Return a unique non-zero ID for the specified metadata kind.
+unsigned LLVMContext::getMDKindID(StringRef Name) const {
+  assert(isValidName(Name) && "Invalid MDNode name");
+  
+  unsigned &Entry = pImpl->CustomMDKindNames[Name];
+  
+  // If this is new, assign it its ID.
+  if (Entry == 0) Entry = pImpl->CustomMDKindNames.size();
+  return Entry;
+}
+
+/// getHandlerNames - Populate client supplied smallvector using custome
+/// metadata name and ID.
+void LLVMContext::getMDKindNames(SmallVectorImpl<StringRef> &Names) const {
+  Names.resize(pImpl->CustomMDKindNames.size()+1);
+  Names[0] = "";
+  for (StringMap<unsigned>::const_iterator I = pImpl->CustomMDKindNames.begin(),
+       E = pImpl->CustomMDKindNames.end(); I != E; ++I)
+    // MD Handlers are numbered from 1.
+    Names[I->second] = I->first();
+}