//===----------------------------------------------------------------------===//
#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"
-#include <set>
-
+#include <cctype>
using namespace llvm;
static ManagedStatic<LLVMContext> GlobalContext;
return *GlobalContext;
}
-LLVMContext::LLVMContext() : pImpl(new LLVMContextImpl(*this)) { }
+LLVMContext::LLVMContext() : pImpl(new LLVMContextImpl(*this)) {
+ // Create the fixed metadata kinds. This is done in the same order as the
+ // MD_* enum values so that they correspond.
+
+ // Create the 'dbg' metadata kind.
+ unsigned DbgID = getMDKindID("dbg");
+ assert(DbgID == MD_dbg && "dbg kind id drifted"); (void)DbgID;
+
+ // Create the 'tbaa' metadata kind.
+ unsigned TBAAID = getMDKindID("tbaa");
+ assert(TBAAID == MD_tbaa && "tbaa kind id drifted"); (void)TBAAID;
+
+ // Create the 'prof' metadata kind.
+ unsigned ProfID = getMDKindID("prof");
+ assert(ProfID == MD_prof && "prof kind id drifted"); (void)ProfID;
+}
LLVMContext::~LLVMContext() { delete pImpl; }
-GetElementPtrConstantExpr::GetElementPtrConstantExpr
- (Constant *C,
- const std::vector<Constant*> &IdxList,
- const Type *DestTy)
- : ConstantExpr(DestTy, Instruction::GetElementPtr,
- OperandTraits<GetElementPtrConstantExpr>::op_end(this)
- - (IdxList.size()+1),
- IdxList.size()+1) {
- OperandList[0] = C;
- for (unsigned i = 0, E = IdxList.size(); i != E; ++i)
- OperandList[i+1] = IdxList[i];
+void LLVMContext::addModule(Module *M) {
+ pImpl->OwnedModules.insert(M);
+}
+
+void LLVMContext::removeModule(Module *M) {
+ pImpl->OwnedModules.erase(M);
+}
+
+//===----------------------------------------------------------------------===//
+// Recoverable Backend Errors
+//===----------------------------------------------------------------------===//
+
+void LLVMContext::
+setInlineAsmDiagnosticHandler(InlineAsmDiagHandlerTy DiagHandler,
+ void *DiagContext) {
+ pImpl->InlineAsmDiagHandler = DiagHandler;
+ pImpl->InlineAsmDiagContext = DiagContext;
+}
+
+/// getInlineAsmDiagnosticHandler - Return the diagnostic handler set by
+/// setInlineAsmDiagnosticHandler.
+LLVMContext::InlineAsmDiagHandlerTy
+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);
}
-bool LLVMContext::RemoveDeadMetadata() {
- std::vector<const MDNode *> DeadMDNodes;
- bool Changed = false;
- while (1) {
-
- for (LLVMContextImpl::MDNodeMapTy::MapTy::iterator
- I = pImpl->MDNodes.map_begin(),
- E = pImpl->MDNodes.map_end(); I != E; ++I) {
- const MDNode *N = cast<MDNode>(I->second);
- if (N->use_empty())
- DeadMDNodes.push_back(N);
- }
-
- if (DeadMDNodes.empty())
- return Changed;
-
- while (!DeadMDNodes.empty()) {
- const MDNode *N = DeadMDNodes.back(); DeadMDNodes.pop_back();
- delete N;
- }
+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 Changed;
+ 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());
+
+ 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 (!std::isalpha(MDName[0]))
+ return false;
+
+ for (StringRef::iterator I = MDName.begin() + 1, E = MDName.end(); I != E;
+ ++I) {
+ if (!std::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");
+
+ // If this is new, assign it its ID.
+ return
+ pImpl->CustomMDKindNames.GetOrCreateValue(
+ Name, pImpl->CustomMDKindNames.size()).second;
+}
+
+/// getHandlerNames - Populate client supplied smallvector using custome
+/// metadata name and ID.
+void LLVMContext::getMDKindNames(SmallVectorImpl<StringRef> &Names) const {
+ Names.resize(pImpl->CustomMDKindNames.size());
+ for (StringMap<unsigned>::const_iterator I = pImpl->CustomMDKindNames.begin(),
+ E = pImpl->CustomMDKindNames.end(); I != E; ++I)
+ Names[I->second] = I->first();
}