#ifndef LLVM_LLVMCONTEXT_H
#define LLVM_LLVMCONTEXT_H
-#include "llvm/Support/DataTypes.h"
-#include <vector>
-#include <string>
-
namespace llvm {
-struct LLVMContextImpl;
+class LLVMContextImpl;
+class StringRef;
+class Instruction;
+class Module;
+template <typename T> class SmallVectorImpl;
/// This is an important class for using LLVM in a threaded context. It
/// (opaquely) owns and manages the core "global" data of LLVM's core
/// infrastructure, including the type and constant uniquing tables.
/// LLVMContext itself provides no locking guarantees, so you should be careful
/// to have one context per thread.
-struct LLVMContext {
- LLVMContextImpl* pImpl;
-
+class LLVMContext {
+public:
+ LLVMContextImpl *const pImpl;
LLVMContext();
~LLVMContext();
+
+ // Pinned metadata names, which always have the same value. This is a
+ // compile-time performance optimization, not a correctness optimization.
+ enum {
+ MD_dbg = 0, // "dbg"
+ MD_tbaa = 1 // "tbaa"
+ };
+
+ /// getMDKindID - Return a unique non-zero ID for the specified metadata kind.
+ /// This ID is uniqued across modules in the current LLVMContext.
+ unsigned getMDKindID(StringRef Name) const;
+
+ /// getMDKindNames - Populate client supplied SmallVector with the name for
+ /// custom metadata IDs registered in this LLVMContext.
+ void getMDKindNames(SmallVectorImpl<StringRef> &Result) const;
+
+ /// setInlineAsmDiagnosticHandler - This method sets a handler that is invoked
+ /// when problems with inline asm are detected by the backend. The first
+ /// argument is a function pointer (of type SourceMgr::DiagHandlerTy) and the
+ /// second is a context pointer that gets passed into the DiagHandler.
+ ///
+ /// LLVMContext doesn't take ownership or interpreter either of these
+ /// pointers.
+ void setInlineAsmDiagnosticHandler(void *DiagHandler, void *DiagContext = 0);
+
+ /// getInlineAsmDiagnosticHandler - Return the diagnostic handler set by
+ /// setInlineAsmDiagnosticHandler.
+ void *getInlineAsmDiagnosticHandler() const;
+
+ /// getInlineAsmDiagnosticContext - Return the diagnostic context set by
+ /// setInlineAsmDiagnosticHandler.
+ void *getInlineAsmDiagnosticContext() const;
+
+
+ /// emitError - Emit an error message to the currently installed error handler
+ /// with optional location information. This function returns, so code should
+ /// be prepared to drop the erroneous construct on the floor and "not crash".
+ /// The generated code need not be correct. The error message will be
+ /// implicitly prefixed with "error: " and should not end with a ".".
+ void emitError(unsigned LocCookie, StringRef ErrorStr);
+ void emitError(const Instruction *I, StringRef ErrorStr);
+ void emitError(StringRef ErrorStr);
+
+private:
+ // DO NOT IMPLEMENT
+ LLVMContext(LLVMContext&);
+ void operator=(LLVMContext&);
+
+ /// addModule - Register a module as being instantiated in this context. If
+ /// the context is deleted, the module will be deleted as well.
+ void addModule(Module*);
+
+ /// removeModule - Unregister a module from this context.
+ void removeModule(Module*);
+
+ // Module needs access to the add/removeModule methods.
+ friend class Module;
};
-/// FOR BACKWARDS COMPATIBILITY - Returns a global context.
-extern LLVMContext& getGlobalContext();
+/// getGlobalContext - Returns a global context. This is for LLVM clients that
+/// only care about operating on a single thread.
+extern LLVMContext &getGlobalContext();
}